[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Launchpad Bug Tracker]

This bug was fixed in the package linux - 4.8.0-30.32

---
linux (4.8.0-30.32) yakkety; urgency=low

  * CVE-2016-8655 (LP: #1646318)
- packet: fix race condition in packet_set_ring

 -- Brad Figg   Thu, 01 Dec 2016 08:02:53 -0800

** Changed in: linux (Ubuntu Zesty)
   Status: Triaged => Fix Released

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-8655

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in zfs-linux source package in Xenial:
  Fix Released
Status in linux source package in Yakkety:
  Fix Released
Status in zfs-linux source package in Yakkety:
  Fix Released
Status in linux source package in Zesty:
  Fix Released
Status in zfs-linux source package in Zesty:
  Fix Released

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Launchpad Bug Tracker]

This bug was fixed in the package linux - 4.8.0-28.30

---
linux (4.8.0-28.30) yakkety; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
- LP: #1641083

  * lxc-attach to malicious container allows access to host (LP: #1639345)
- Revert "UBUNTU: SAUCE: (noup) ptrace: being capable wrt a process requires
  mapped uids/gids"
- (upstream) mm: Add a user_ns owner to mm_struct and fix ptrace permission
  checks

  * [Feature] AVX-512 new instruction sets (avx512_4vnniw, avx512_4fmaps)
(LP: #1637526)
- x86/cpufeature: Add AVX512_4VNNIW and AVX512_4FMAPS features

  * zfs: importing zpool with vdev on zvol hangs kernel (LP: #1636517)
- SAUCE: (noup) Update zfs to 0.6.5.8-0ubuntu4.1

  * Move some device drivers build from kernel built-in to modules
(LP: #1637303)
- [Config] CONFIG_TIGON3=m for all arches
- [Config] CONFIG_VIRTIO_BLK=m, CONFIG_VIRTIO_NET=m

  * I2C touchpad does not work on AMD platform (LP: #1612006)
- pinctrl/amd: Configure GPIO register using BIOS settings

  * guest experiencing Transmit Timeouts on CX4 (LP: #1636330)
- powerpc/64: Re-fix race condition between going idle and entering guest
- powerpc/64: Fix race condition in setting lock bit in idle/wakeup code

  * QEMU throws failure msg while booting guest with SRIOV VF (LP: #1630554)
- KVM: PPC: Always select KVM_VFIO, plus Makefile cleanup

  * [Feature] KBL - New device ID for Kabypoint(KbP) (LP: #1591618)
- SAUCE: mfd: lpss: Fix Intel Kaby Lake PCH-H properties

  * hio: SSD data corruption under stress test (LP: #1638700)
- SAUCE: hio: set bi_error field to signal an I/O error on a BIO
- SAUCE: hio: splitting bio in the entry of .make_request_fn

  * cleanup primary tree for linux-hwe layering issues (LP: #1637473)
- [Config] switch Vcs-Git: to yakkety repository
- [Packaging] handle both linux-lts* and linux-hwe* as backports
- [Config] linux-tools-common and linux-cloud-tools-common are one per 
series
- [Config] linux-source-* is in the primary linux namespace
- [Config] linux-tools -- always suggest the base package

  * SRU: sync zfsutils-linux and spl-linux changes to linux (LP: #1635656)
- SAUCE: (noup) Update spl to 0.6.5.8-2, zfs to 0.6.5.8-0ubuntu4 (LP:
  #1635656)

  * [Feature] SKX: perf uncore PMU support (LP: #1591810)
- perf/x86/intel/uncore: Add Skylake server uncore support
- perf/x86/intel/uncore: Remove hard-coded implementation for Node ID 
mapping
  location
- perf/x86/intel/uncore: Handle non-standard counter offset

  * [Feature] Purley: Memory Protection Keys (LP: #1591804)
- x86/pkeys: Add fault handling for PF_PK page fault bit
- mm: Implement new pkey_mprotect() system call
- x86/pkeys: Make mprotect_key() mask off additional vm_flags
- x86/pkeys: Allocation/free syscalls
- x86: Wire up protection keys system calls
- generic syscalls: Wire up memory protection keys syscalls
- pkeys: Add details of system call use to Documentation/
- x86/pkeys: Default to a restrictive init PKRU
- x86/pkeys: Allow configuration of init_pkru
- x86/pkeys: Add self-tests

  * kernel invalid opcode in intel_powerclamp (LP: #1630774)
- SAUCE: (no-up) thermal/powerclamp: correct cpu support check

  * please include mlx5_core modules in linux-image-generic package
(LP: #1635223)
- [Config] Include mlx5 in main package

  * [LTCTest] vfio_pci not loaded on Ubuntu 16.10 by default (LP: #1636733)
- [Config] CONFIG_VFIO_PCI=y for ppc64el

  * Yakkety update to v4.8.6 stable release (LP: #1638748)
- drm/vc4: Fix races when the CS reads from render targets.
- drm/prime: Pass the right module owner through to dma_buf_export()
- drm/i915/backlight: setup and cache pwm alternate increment value
- drm/i915/backlight: setup backlight pwm alternate increment on backlight
  enable
- drm/amdgpu: fix IB alignment for UVD
- drm/amdgpu/dce10: disable hpd on local panels
- drm/amdgpu/dce8: disable hpd on local panels
- drm/amdgpu/dce11: disable hpd on local panels
- drm/amdgpu/dce11: add missing drm_mode_config_cleanup call
- drm/amdgpu: initialize the context reset_counter in amdgpu_ctx_init
- drm/amdgpu: change vblank_time's calculation method to reduce 
computational
  error.
- drm/radeon: narrow asic_init for virtualization
- drm/radeon/si/dpm: fix phase shedding setup
- drm/radeon: change vblank_time's calculation method to reduce 
computational
  error.
- drm/vmwgfx: Limit the user-space command buffer size
- drm/fsl-dcu: fix endian issue when using clk_register_divider
- drm/amd/powerplay: fix mclk not switching back after multi-head was 
disabled
- HID: add quirk for Akai MIDImix.
- drm/i915/skl: Update plane watermarks atomically during plane updates
- drm/i915: Move CRTC updating in atomic_commit into it's own hook
- drm/i915/skl: Update DDB values 

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Launchpad Bug Tracker]

This bug was fixed in the package linux - 4.4.0-51.72

---
linux (4.4.0-51.72) xenial; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
- LP: #1644611

  * 4.4.0-1037-snapdragon #41: kernel panic on boot (LP: #1644596)
- Revert "dma-mapping: introduce the DMA_ATTR_NO_WARN attribute"
- Revert "powerpc: implement the DMA_ATTR_NO_WARN attribute"
- Revert "nvme: use the DMA_ATTR_NO_WARN attribute"

linux (4.4.0-50.71) xenial; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
- LP: #1644169

  * xenial 4.4.0-49.70 kernel breaks LXD userspace (LP: #1644165)
- Revert "UBUNTU: SAUCE: (namespace) fuse: Allow user namespace mounts by
  default"
- Revert "UBUNTU: SAUCE: (namespace) fs: Don't remove suid for CAP_FSETID 
for
  userns root"
- Revert "(namespace) Revert "UBUNTU: SAUCE: fs: Don't remove suid for
  CAP_FSETID in s_user_ns""
- Revert "UBUNTU: SAUCE: (namespace) fs: Allow superblock owner to change
  ownership of inodes"
- Revert "(namespace) Revert "UBUNTU: SAUCE: fs: Allow superblock owner to
  change ownership of inodes with unmappable ids""
- Revert "UBUNTU: SAUCE: (namespace) security/integrity: Harden against
  malformed xattrs"
- Revert "(namespace) Revert "UBUNTU: SAUCE: ima/evm: Allow root in 
s_user_ns
  to set xattrs""
- Revert "(namespace) dquot: For now explicitly don't support filesystems
  outside of init_user_ns"
- Revert "(namespace) quota: Handle quota data stored in s_user_ns in
  quota_setxquota"
- Revert "(namespace) quota: Ensure qids map to the filesystem"
- Revert "(namespace) Revert "UBUNTU: SAUCE: quota: Convert ids relative to
  s_user_ns""
- Revert "(namespace) Revert "UBUNTU: SAUCE: quota: Require that qids passed
  to dqget() be valid and map into s_user_ns""
- Revert "(namespace) vfs: Don't create inodes with a uid or gid unknown to
  the vfs"
- Revert "(namespace) vfs: Don't modify inodes with a uid or gid unknown to
  the vfs"
- Revert "UBUNTU: SAUCE: (namespace) fuse: Translate ids in posix acl 
xattrs"
- Revert "UBUNTU: SAUCE: (namespace) posix_acl: Export
  posix_acl_fix_xattr_userns() to modules"
- Revert "(namespace) vfs: Verify acls are valid within superblock's
  s_user_ns."
- Revert "(namespace) Revert "UBUNTU: SAUCE: fs: Update posix_acl support to
  handle user namespace mounts""
- Revert "(namespace) fs: Refuse uid/gid changes which don't map into
  s_user_ns"
- Revert "(namespace) Revert "UBUNTU: SAUCE: fs: Refuse uid/gid changes 
which
  don't map into s_user_ns""
- Revert "(namespace) mnt: Move the FS_USERNS_MOUNT check into sget_userns"

linux (4.4.0-49.70) xenial; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
- LP: #1640921

  * Infiniband driver (kernel module) needed for Azure (LP: #1641139)
- SAUCE: RDMA Infiniband for Windows Azure
- [Config] CONFIG_HYPERV_INFINIBAND_ND=m
- SAUCE: Makefile RDMA infiniband driver for Windows Azure
- [Config] Add hv_network_direct.ko to generic inclusion list
- SAUCE: RDMA Infiniband for Windows Azure is dependent on amd64

linux (4.4.0-48.69) xenial; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
- LP: #1640758

  * lxc-attach to malicious container allows access to host (LP: #1639345)
- Revert "UBUNTU: SAUCE: (noup) ptrace: being capable wrt a process requires
  mapped uids/gids"
- (upstream) mm: Add a user_ns owner to mm_struct and fix ptrace permission
  checks

  * take 'P' command from upstream xmon (LP: #1637978)
- powerpc/xmon: Add xmon command to dump process/task similar to ps(1)

  * zfs: importing zpool with vdev on zvol hangs kernel (LP: #1636517)
- SAUCE: (noup) Update zfs to 0.6.5.6-0ubuntu15

  * I2C touchpad does not work on AMD platform (LP: #1612006)
- pinctrl/amd: Configure GPIO register using BIOS settings
- pinctrl/amd: switch to using a bool for level

  * [LTCTest] vfio_pci not loaded on Ubuntu 16.10 by default (LP: #1636733)
- [Config] CONFIG_VFIO_PCI=y for ppc64el

  * QEMU throws failure msg while booting guest with SRIOV VF (LP: #1630554)
- KVM: PPC: Always select KVM_VFIO, plus Makefile cleanup

  * Allow fuse user namespace mounts by default in xenial (LP: #1634964)
- (namespace) mnt: Move the FS_USERNS_MOUNT check into sget_userns
- (namespace) Revert "UBUNTU: SAUCE: fs: Refuse uid/gid changes which don't
  map into s_user_ns"
- (namespace) fs: Refuse uid/gid changes which don't map into s_user_ns
- (namespace) Revert "UBUNTU: SAUCE: fs: Update posix_acl support to handle
  user namespace mounts"
- (namespace) vfs: Verify acls are valid within superblock's s_user_ns.
- SAUCE: (namespace) posix_acl: Export posix_acl_fix_xattr_userns() to 
modules
- SAUCE: (namespace) fuse: Translate ids in posix acl xattrs
- (namespace) vfs: Don't modify inodes with a uid 

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Launchpad Bug Tracker]

This bug was fixed in the package zfs-linux - 0.6.5.8-0ubuntu4.1

---
zfs-linux (0.6.5.8-0ubuntu4.1) yakkety; urgency=low

  * Fix zpool import with vdev on zvol hang (LP: #1636517)
kernel commit 77adfdaff1901ced4f72496e61317779424ee653
("block_dev: Support checking inode permissions in lookup_bdev()")
added a flags argument to block_dev which caused this breakage. Add
detection of 1 or 2 arg block_dev and add a zfs_block_dev shim to
abstract these differences away. Kudos to Fabian Grünbichler for
the original fix that this fix is based on.

 -- Colin Ian King   Tue, 25 Oct 2016 16:58:11
+0100

** Changed in: zfs-linux (Ubuntu Yakkety)
   Status: Fix Committed => Fix Released

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in zfs-linux source package in Xenial:
  Fix Released
Status in linux source package in Yakkety:
  Fix Committed
Status in zfs-linux source package in Yakkety:
  Fix Released
Status in linux source package in Zesty:
  Triaged
Status in zfs-linux source package in Zesty:
  Fix Released

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Launchpad Bug Tracker]

This bug was fixed in the package zfs-linux - 0.6.5.6-0ubuntu15

---
zfs-linux (0.6.5.6-0ubuntu15) xenial; urgency=medium

  * Fix zpool import with vdev on zvol hang (LP: #1636517)
Xenial kernel commit 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee
("block_dev: Support checking inode permissions in lookup_bdev()")
added a flags argument to block_dev which caused this breakage. Add
detection of 1 or 2 arg block_dev and add a zfs_block_dev shim to
abstract these differences away. Kudos to Fabian Grünbichler for
the original fix that this fix is based on.

 -- Colin Ian King   Tue, 25 Oct 2016 16:58:11
+0100

** Changed in: zfs-linux (Ubuntu Xenial)
   Status: Fix Committed => Fix Released

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in zfs-linux source package in Xenial:
  Fix Released
Status in linux source package in Yakkety:
  Fix Committed
Status in zfs-linux source package in Yakkety:
  Fix Released
Status in linux source package in Zesty:
  Triaged
Status in zfs-linux source package in Zesty:
  Fix Released

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Colin Ian King]

looks OK for yakkety in -proposed too.

** Tags removed: verification-needed-yakkety
** Tags added: verification-done-yakkety

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  Fix Committed
Status in zfs-linux source package in Yakkety:
  Fix Committed
Status in linux source package in Zesty:
  Triaged
Status in zfs-linux source package in Zesty:
  Fix Released

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Fabian Grünbichler]

issue does not occur anymore for xenial (Ubuntu-4.4.0-49.70)

** Tags removed: verification-needed-xenial
** Tags added: verification-done-xenial

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  Fix Committed
Status in zfs-linux source package in Yakkety:
  Fix Committed
Status in linux source package in Zesty:
  Triaged
Status in zfs-linux source package in Zesty:
  Fix Released

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Luis Henriques]

This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
yakkety' to 'verification-done-yakkety'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-yakkety

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  Fix Committed
Status in zfs-linux source package in Yakkety:
  Fix Committed
Status in linux source package in Zesty:
  Triaged
Status in zfs-linux source package in Zesty:
  Fix Released

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Luis Henriques]

This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
xenial' to 'verification-done-xenial'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-xenial

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  Fix Committed
Status in zfs-linux source package in Yakkety:
  Fix Committed
Status in linux source package in Zesty:
  Triaged
Status in zfs-linux source package in Zesty:
  Fix Released

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Luis Henriques]

** Changed in: linux (Ubuntu Yakkety)
   Status: New => Fix Committed

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  Fix Committed
Status in zfs-linux source package in Yakkety:
  Fix Committed
Status in linux source package in Zesty:
  Triaged
Status in zfs-linux source package in Zesty:
  Fix Released

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Luis Henriques]

** Changed in: linux (Ubuntu Xenial)
   Status: New => Fix Committed

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  New
Status in zfs-linux source package in Yakkety:
  Fix Committed
Status in linux source package in Zesty:
  Triaged
Status in zfs-linux source package in Zesty:
  Fix Released

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Hajo Möller]

Colin, thank you for the fix, I will switch to xenial-proposed now.

As a followup, upstream merged my PR so 1014-kernel-lookup-bdev.patch
may be removed once the next ZFS on Linux release gets synced to us,
hopefully in time for zesty.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  New
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  New
Status in zfs-linux source package in Yakkety:
  Fix Committed
Status in linux source package in Zesty:
  Triaged
Status in zfs-linux source package in Zesty:
  Fix Released

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : 

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Colin Ian King]

Actually, hold off on testing until the kernel updates land with this
fix.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  New
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  New
Status in zfs-linux source package in Yakkety:
  Fix Committed
Status in linux source package in Zesty:
  Triaged
Status in zfs-linux source package in Zesty:
  Fix Released

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Andy Whitcroft]

Hello Fabian, or anyone else affected,

Accepted zfs-linux into yakkety-proposed. The package will build now and
be available at https://launchpad.net/ubuntu/+source/zfs-
linux/0.6.5.8-0ubuntu4.1 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: zfs-linux (Ubuntu Yakkety)
   Status: New => Fix Committed

** Changed in: zfs-linux (Ubuntu Xenial)
   Status: New => Fix Committed

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  New
Status in zfs-linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  New
Status in zfs-linux source package in Yakkety:
  Fix Committed
Status in linux source package in Zesty:
  Triaged
Status in zfs-linux source package in Zesty:
  Fix Released

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Launchpad Bug Tracker]

This bug was fixed in the package zfs-linux - 0.6.5.8-0ubuntu5

---
zfs-linux (0.6.5.8-0ubuntu5) zesty; urgency=low

  * Fix zpool import with vdev on zvol hang (LP: #1636517)
kernel commit 77adfdaff1901ced4f72496e61317779424ee653
("block_dev: Support checking inode permissions in lookup_bdev()")
added a flags argument to block_dev which caused this breakage. Add
detection of 1 or 2 arg block_dev and add a zfs_block_dev shim to
abstract these differences away. Kudos to Fabian Grünbichler for
the original fix that this fix is based on.

 -- Colin Ian King   Tue, 25 Oct 2016 16:58:11
+0100

** Changed in: zfs-linux (Ubuntu Zesty)
   Status: New => Fix Released

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  New
Status in zfs-linux source package in Xenial:
  New
Status in linux source package in Yakkety:
  New
Status in zfs-linux source package in Yakkety:
  New
Status in linux source package in Zesty:
  Triaged
Status in zfs-linux source package in Zesty:
  Fix Released

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Tim Gardner]

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Also affects: zfs-linux (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Also affects: linux (Ubuntu Yakkety)
   Importance: Undecided
   Status: New

** Also affects: zfs-linux (Ubuntu Yakkety)
   Importance: Undecided
   Status: New

** Also affects: linux (Ubuntu Zesty)
   Importance: Medium
 Assignee: Colin Ian King (colin-king)
   Status: Triaged

** Also affects: zfs-linux (Ubuntu Zesty)
   Importance: Medium
 Assignee: Colin Ian King (colin-king)
   Status: New

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  New
Status in linux source package in Xenial:
  New
Status in zfs-linux source package in Xenial:
  New
Status in linux source package in Yakkety:
  New
Status in zfs-linux source package in Yakkety:
  New
Status in linux source package in Zesty:
  Triaged
Status in zfs-linux source package in Zesty:
  New

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Fabian Grünbichler]

can confirm that the test packages correctly allow importing of such
pools. thanks for the quick reaction!

minor nitpick since you referenced me in the changelog, please either
spell my last name "Grünbichler" (with 'ü'), or transcribed with 'ue',
and not with an 'i' - thanks! :)

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  New

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  zfsutils-linux:

  Zesty: https://launchpadlibrarian.net/290907232/zfs-
  linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  Sync'd fixes into kernel repos, patches in:
  http://kernel.ubuntu.com/~cking/zfs-lp-1636517

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Colin Ian King]

Thanks Hajo, I was working the fix last night with a detection of the
two different lookup_bdev calls and been regression testing during the
night for Zesty, Yakkety and Xenial. I've got my fix already prepared...

So the way this kind of fix works with Ubuntu is as follows:

1. Change goes into zfsutils-linux
2. Sync the delta into the kernel package

I've put the zfsutils updates in ppa:

https://launchpad.net/~colin-king/+archive/ubuntu/zfs-lp-1636517
sudo add-apt-repository ppa:colin-king/zfs-lp-1636517
sudo apt-get update && sudo apt-get upgrade

And the fix in some test kernels:

http://kernel.ubuntu.com/~cking/zfs-lp-163651

These have been tested against our internal zfs regression tests and
pass.

@Fabian can you test these and if they are OK I'll SRU these. Thanks!

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  New

Bug description:
  [SRU Request][Xenial][Yakkety]

  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  [Fix]
  Zesty: 
https://launchpadlibrarian.net/290907232/zfs-linux_0.6.5.8-0ubuntu4_0.6.5.8-0ubuntu5.diff.gz

  Yakkety, likewise
  Xenial, likewise

  [Regression Potential]

  Minimal. This just touched one line in the zfs module
  module/zfs/zvol.cand a shim wrapper in include/linux/blkdev_compat.h

  Tested and passes with the ubuntu kernel team autotest client zfs
  regression tests.

  
  =

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (erged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:

  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Colin Ian King]

** Changed in: zfs-linux (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu)
 Assignee: (unassigned) => Colin Ian King (colin-king)

** Changed in: zfs-linux (Ubuntu)
 Assignee: (unassigned) => Colin Ian King (colin-king)

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  New

Bug description:
  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (merged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:
   
  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Hajo Möller]

I proposed a patch making use of autoconf upstream at
https://github.com/zfsonlinux/zfs/pull/5336

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Triaged
Status in zfs-linux package in Ubuntu:
  New

Bug description:
  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (merged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:
   
  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Ubuntu Foundations Team Bug Bot]

The attachment "zfs-fix-zpool-import-bug-with-nested-pools.patch" seems
to be a patch.  If it isn't, please remove the "patch" flag from the
attachment, remove the "patch" tag, and if you are a member of the
~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by
~brian-murray, for any issues please contact him.]

** Tags added: patch

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Confirmed
Status in zfs-linux package in Ubuntu:
  New

Bug description:
  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (merged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:
   
  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Colin Ian King]

Thanks Fabian for tracking this bug down and the patch.  I think the
most flexible approach is to add the detection in to the two variants of
the call and make ZFS build the correct way accordingly.  I'll see what
I can do on that.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Confirmed
Status in zfs-linux package in Ubuntu:
  New

Bug description:
  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (merged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:
   
  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Fabian Grünbichler]

** Also affects: zfs-linux (Ubuntu)
   Importance: Undecided
   Status: New

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Confirmed
Status in zfs-linux package in Ubuntu:
  New

Bug description:
  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (merged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:
   
  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1636517] Re: zfs: importing zpool with vdev on zvol hangs kernel

[Fabian Grünbichler]

attached patch with fix tested with 4.4.0-45.66

note that instead of hardcoding the patched variant of lookup_bdev, it
might make sense to adapt the zfs automake files to autodetect and
handle both one parameter and two parameter variants?

that way, all three variations of building the zfs module would work:

dkms source with either an Ubuntu or upstream kernel
Ubuntu kernel with zfs module source in module/zfs/

** Patch added: "zfs-fix-zpool-import-bug-with-nested-pools.patch"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+attachment/4767015/+files/zfs-fix-zpool-import-bug-with-nested-pools.patch

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1636517

Title:
  zfs: importing zpool with vdev on zvol hangs kernel

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  if a zvol of an existing, already imported zpool is a vdev of another
  zpool, a call to "zpool import" will everything zfs related. the stack
  trace is as follows:

  [] taskq_wait+0x74/0xe0 [spl]
  [] taskq_destroy+0x4b/0x100 [spl]
  [] vdev_open_children+0x12d/0x180 [zfs]
  [] vdev_root_open+0x3c/0xc0 [zfs]
  [] vdev_open+0xf5/0x4d0 [zfs]
  [] spa_load+0x39e/0x1c60 [zfs]
  [] spa_tryimport+0xad/0x450 [zfs]
  [] zfs_ioc_pool_tryimport+0x64/0xa0 [zfs]
  [] zfsdev_ioctl+0x44b/0x4e0 [zfs]
  [] do_vfs_ioctl+0x29f/0x490
  [] SyS_ioctl+0x79/0x90
  [] entry_SYSCALL_64_fastpath+0x16/0x71
  [] 0x

  I traced this back to 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (merged
  in 4.4.0-6.21), which added a second parameter to lookup_bdev without
  patching the zfs module (which needs to special case the vdev-on-zvol
  case, and uses this exact method only in this special casing code
  path).

  attached you can find the output of "zfs send -R" ing such a zvol
  ("brokenvol.raw"), running "zfs receive POOL/TARGET < FILE" followed
  by "zpool import" should reproduce the hang.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-45-generic 4.4.0-45.66
  ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
  Uname: Linux 4.4.0-45-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Oct 25 15:46 seq
   crw-rw 1 root audio 116, 33 Oct 25 15:46 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Tue Oct 25 15:49:51 2016
  HibernationDevice: RESUME=/dev/mapper/xenial--vg-swap_1
  InstallationDate: Installed on 2016-10-25 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
  PciMultimedia:
   
  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic 
root=/dev/mapper/hostname--vg-root ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-45-generic N/A
   linux-backports-modules-4.4.0-45-generic  N/A
   linux-firmware1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.7
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrrel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.7:cvnQEMU:ct1:cvrpc-i440fx-2.7:
  dmi.product.name: Standard PC (i440FX + PIIX, 1996)
  dmi.product.version: pc-i440fx-2.7
  dmi.sys.vendor: QEMU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp