[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-06-27 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 4.4.0-28.47

---
linux (4.4.0-28.47) xenial; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
- LP: #1595874

  * Linux netfilter local privilege escalation issues (LP: #1595350)
- netfilter: x_tables: don't move to non-existent next rule
- netfilter: x_tables: validate targets of jumps
- netfilter: x_tables: add and use xt_check_entry_offsets
- netfilter: x_tables: kill check_entry helper
- netfilter: x_tables: assert minimum target size
- netfilter: x_tables: add compat version of xt_check_entry_offsets
- netfilter: x_tables: check standard target size too
- netfilter: x_tables: check for bogus target offset
- netfilter: x_tables: validate all offsets and sizes in a rule
- netfilter: x_tables: don't reject valid target size on some architectures
- netfilter: arp_tables: simplify translate_compat_table args
- netfilter: ip_tables: simplify translate_compat_table args
- netfilter: ip6_tables: simplify translate_compat_table args
- netfilter: x_tables: xt_compat_match_from_user doesn't need a retval
- netfilter: x_tables: do compat validation via translate_table
- netfilter: x_tables: introduce and use xt_copy_counters_from_user

  * Linux netfilter IPT_SO_SET_REPLACE memory corruption (LP: #1555338)
- netfilter: x_tables: validate e->target_offset early
- netfilter: x_tables: make sure e->next_offset covers remaining blob size
- netfilter: x_tables: fix unconditional helper

linux (4.4.0-27.46) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
- LP: #1594906

  * Support Edge Gateway's Bluetooth LED (LP: #1512999)
- Revert "UBUNTU: SAUCE: Bluetooth: Support for LED on Marvell modules"

linux (4.4.0-26.45) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
- LP: #1594442

  * linux: Implement secure boot state variables (LP: #1593075)
- SAUCE: UEFI: Add secure boot and MOK SB State disabled sysctl

  * failures building userspace packages that include ethtool.h (LP: #1592930)
- ethtool.h: define INT_MAX for userland

linux (4.4.0-25.44) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
- LP: #1591289

  * Xenial update to v4.4.13 stable release (LP: #1590455)
- MIPS64: R6: R2 emulation bugfix
- MIPS: math-emu: Fix jalr emulation when rd == $0
- MIPS: MSA: Fix a link error on `_init_msa_upper' with older GCC
- MIPS: Don't unwind to user mode with EVA
- MIPS: Avoid using unwind_stack() with usermode
- MIPS: Fix siginfo.h to use strict posix types
- MIPS: Fix uapi include in exported asm/siginfo.h
- MIPS: Fix watchpoint restoration
- MIPS: Flush highmem pages in __flush_dcache_page
- MIPS: Handle highmem pages in __update_cache
- MIPS: Sync icache & dcache in set_pte_at
- MIPS: ath79: make bootconsole wait for both THRE and TEMT
- MIPS: Reserve nosave data for hibernation
- MIPS: Loongson-3: Reserve 32MB for RS780E integrated GPU
- MIPS: Use copy_s.fmt rather than copy_u.fmt
- MIPS: Fix MSA ld_*/st_* asm macros to use PTR_ADDU
- MIPS: Prevent "restoration" of MSA context in non-MSA kernels
- MIPS: Disable preemption during prctl(PR_SET_FP_MODE, ...)
- MIPS: ptrace: Fix FP context restoration FCSR regression
- MIPS: ptrace: Prevent writes to read-only FCSR bits
- MIPS: Fix sigreturn via VDSO on microMIPS kernel
- MIPS: Build microMIPS VDSO for microMIPS kernels
- MIPS: lib: Mark intrinsics notrace
- MIPS: VDSO: Build with `-fno-strict-aliasing'
- affs: fix remount failure when there are no options changed
- ASoC: ak4642: Enable cache usage to fix crashes on resume
- Input: uinput - handle compat ioctl for UI_SET_PHYS
- ARM: mvebu: fix GPIO config on the Linksys boards
- ARM: dts: at91: fix typo in sama5d2 PIN_PD24 description
- ARM: dts: exynos: Add interrupt line to MAX8997 PMIC on exynos4210-trats
- ARM: dts: imx35: restore existing used clock enumeration
- ath9k: Add a module parameter to invert LED polarity.
- ath9k: Fix LED polarity for some Mini PCI AR9220 MB92 cards.
- ath10k: fix debugfs pktlog_filter write
- ath10k: fix firmware assert in monitor mode
- ath10k: fix rx_channel during hw reconfigure
- ath10k: fix kernel panic, move arvifs list head init before htt init
- ath5k: Change led pin configuration for compaq c700 laptop
- hwrng: exynos - Fix unbalanced PM runtime put on timeout error path
- rtlwifi: rtl8723be: Add antenna select module parameter
- rtlwifi: btcoexist: Implement antenna selection
- rtlwifi: Fix logic error in enter/exit power-save mode
- rtlwifi: pci: use dev_kfree_skb_irq instead of kfree_skb in
  rtl_pci_reset_trx_ring
- aacraid: Relinquish CPU during timeout wait
- aacraid: Fix for aac_command_thread hang
- aacraid: Fix for KDUMP driver hang
- hwmon: (ads7828) Enable 

[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-06-15 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 4.4.0-25.44

---
linux (4.4.0-25.44) xenial; urgency=low

  [ Kamal Mostafa ]

  * Release Tracking Bug
- LP: #1591289

  * Xenial update to v4.4.13 stable release (LP: #1590455)
- MIPS64: R6: R2 emulation bugfix
- MIPS: math-emu: Fix jalr emulation when rd == $0
- MIPS: MSA: Fix a link error on `_init_msa_upper' with older GCC
- MIPS: Don't unwind to user mode with EVA
- MIPS: Avoid using unwind_stack() with usermode
- MIPS: Fix siginfo.h to use strict posix types
- MIPS: Fix uapi include in exported asm/siginfo.h
- MIPS: Fix watchpoint restoration
- MIPS: Flush highmem pages in __flush_dcache_page
- MIPS: Handle highmem pages in __update_cache
- MIPS: Sync icache & dcache in set_pte_at
- MIPS: ath79: make bootconsole wait for both THRE and TEMT
- MIPS: Reserve nosave data for hibernation
- MIPS: Loongson-3: Reserve 32MB for RS780E integrated GPU
- MIPS: Use copy_s.fmt rather than copy_u.fmt
- MIPS: Fix MSA ld_*/st_* asm macros to use PTR_ADDU
- MIPS: Prevent "restoration" of MSA context in non-MSA kernels
- MIPS: Disable preemption during prctl(PR_SET_FP_MODE, ...)
- MIPS: ptrace: Fix FP context restoration FCSR regression
- MIPS: ptrace: Prevent writes to read-only FCSR bits
- MIPS: Fix sigreturn via VDSO on microMIPS kernel
- MIPS: Build microMIPS VDSO for microMIPS kernels
- MIPS: lib: Mark intrinsics notrace
- MIPS: VDSO: Build with `-fno-strict-aliasing'
- affs: fix remount failure when there are no options changed
- ASoC: ak4642: Enable cache usage to fix crashes on resume
- Input: uinput - handle compat ioctl for UI_SET_PHYS
- ARM: mvebu: fix GPIO config on the Linksys boards
- ARM: dts: at91: fix typo in sama5d2 PIN_PD24 description
- ARM: dts: exynos: Add interrupt line to MAX8997 PMIC on exynos4210-trats
- ARM: dts: imx35: restore existing used clock enumeration
- ath9k: Add a module parameter to invert LED polarity.
- ath9k: Fix LED polarity for some Mini PCI AR9220 MB92 cards.
- ath10k: fix debugfs pktlog_filter write
- ath10k: fix firmware assert in monitor mode
- ath10k: fix rx_channel during hw reconfigure
- ath10k: fix kernel panic, move arvifs list head init before htt init
- ath5k: Change led pin configuration for compaq c700 laptop
- hwrng: exynos - Fix unbalanced PM runtime put on timeout error path
- rtlwifi: rtl8723be: Add antenna select module parameter
- rtlwifi: btcoexist: Implement antenna selection
- rtlwifi: Fix logic error in enter/exit power-save mode
- rtlwifi: pci: use dev_kfree_skb_irq instead of kfree_skb in
  rtl_pci_reset_trx_ring
- aacraid: Relinquish CPU during timeout wait
- aacraid: Fix for aac_command_thread hang
- aacraid: Fix for KDUMP driver hang
- hwmon: (ads7828) Enable internal reference
- mfd: intel-lpss: Save register context on suspend
- mfd: intel_soc_pmic_core: Terminate panel control GPIO lookup table
  correctly
- PM / Runtime: Fix error path in pm_runtime_force_resume()
- cpuidle: Indicate when a device has been unregistered
- cpuidle: Fix cpuidle_state_is_coupled() argument in cpuidle_enter()
- clk: bcm2835: Fix PLL poweron
- clk: at91: fix check of clk_register() returned value
- clk: bcm2835: pll_off should only update CM_PLL_ANARST
- clk: bcm2835: divider value has to be 1 or more
- pinctrl: exynos5440: Use off-stack memory for pinctrl_gpio_range
- PCI: Disable all BAR sizing for devices with non-compliant BARs
- media: v4l2-compat-ioctl32: fix missing reserved field copy in
  put_v4l2_create32
- mm: use phys_addr_t for reserve_bootmem_region() arguments
- wait/ptrace: assume __WALL if the child is traced
- QE-UART: add "fsl,t1040-ucc-uart" to of_device_id
- powerpc/book3s64: Fix branching to OOL handlers in relocatable kernel
- powerpc/eeh: Don't report error in eeh_pe_reset_and_recover()
- powerpc/eeh: Restore initial state in eeh_pe_reset_and_recover()
- xen/events: Don't move disabled irqs
- xen: use same main loop for counting and remapping pages
- sunrpc: fix stripping of padded MIC tokens
- drm/gma500: Fix possible out of bounds read
- drm/vmwgfx: Enable SVGA_3D_CMD_DX_SET_PREDICATION
- drm/vmwgfx: use vmw_cmd_dx_cid_check for query commands.
- drm/vmwgfx: Fix order of operation
- drm/amdgpu: use drm_mode_vrefresh() rather than mode->vrefresh
- drm/amdgpu: Fix hdmi deep color support.
- drm/i915/fbdev: Fix num_connector references in intel_fb_initial_config()
- drm/fb_helper: Fix references to dev->mode_config.num_connector
- drm/atomic: Verify connector->funcs != NULL when clearing states
- drm/i915: Don't leave old junk in ilk active watermarks on readout
- drm/imx: Match imx-ipuv3-crtc components using device node in platform 
data
- ext4: fix hang when 

[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-06-14 Thread Oliver O.
Verified with the test script of #5. Kernel in -proposed solves the
problem.

Steps used:

1. Verified that release kernel 4.4.0-24-generic still had the problem.

2. Verified that kernel 4.4.0.25 from -proposed contains the resolution:

# apt-get install -s -t xenial-proposed 'linux-headers-4.4.0.25$'
'linux-headers-4.4.0.25-generic$' 'linux-image-4.4.0.25-generic$'
'linux-image-extra-4.4.0.25-generic$'

# reboot

# cat /proc/version
Linux version 4.4.0-25-generic (buildd@lgw01-05) (gcc version 5.3.1 20160413 
(Ubuntu 5.3.1-14ubuntu2.1) ) #44-Ubuntu SMP Fri Jun 10 18:19:48 UTC 2016

# ./test-btrfs-write-while-snapshotting.sh 
[problem did not show up on 10 consecutive runs]

Problem solved, changing tag to 'verification-done-xenial'.

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

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Title:
  btrfs: file write crashes with false ENOSPC during snapshot creation
  since kernel 4.4 - fix available

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[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-06-14 Thread Kamal Mostafa
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

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Title:
  btrfs: file write crashes with false ENOSPC during snapshot creation
  since kernel 4.4 - fix available

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[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-06-07 Thread Joseph Salisbury
** Changed in: linux (Ubuntu)
   Status: In Progress => Fix Committed

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  btrfs: file write crashes with false ENOSPC during snapshot creation
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[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-06-02 Thread Kamal Mostafa
** Changed in: linux (Ubuntu Xenial)
   Status: In Progress => Fix Committed

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Title:
  btrfs: file write crashes with false ENOSPC during snapshot creation
  since kernel 4.4 - fix available

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[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-05-23 Thread Oliver O.
Hope the SRU will be accepted quickly. Should be the case, since this
issue causes loss of user data as applications will have no reason to
retry files writes under out of space conditions.

Thanks for the quick and professional cooperation!

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  btrfs: file write crashes with false ENOSPC during snapshot creation
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[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-05-23 Thread Joseph Salisbury
That is great news.  I'll submit an SRU request for Xenial.

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[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-05-23 Thread Oliver O.
Another 24 error-free hours on the server with the test kernel running
the MySQL/Icinga2 combination and creating btrfs snapshots every 5
minutes.

I'd like to add that this server, which previously experienced frequent false 
ENOSPC conditions with the Xenial release kernel, used a fairly plain btrfs 
configuration at all times:
- The '-o nodatacow' mount option was *not* used (in contrast to the test 
script).
- Disabling copy-on-write (CoW) on a per-file basis (using chattr +C) was *not* 
used.

#  mount | grep /volumes/01
/dev/sda2 on /volumes/01 type btrfs 
(rw,noatime,nodiratime,ssd,space_cache,subvolid=5,subvol=/)

# lsattr /var/lib/mysql/ibdata1 
 /var/lib/mysql/ibdata1

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[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-05-22 Thread Oliver O.
The Xenial test kernel with a pick of 4da2e26 resolves the bug, no
negative side effects were encountered.

With the Xenial release kernel, there were 18 MySQL server crashes in a
24 hour period due to false ENOSPC indications. With the test kernel,
not a single crash occured in a 24 hour period.

Additionally, I've checked with a script derived from
https://patchwork.kernel.org/patch/7967161/ (see attachment), which
creates a temporary btrfs test image in a plain file. The script
provoked ENOSPC errors with the release kernel on most runs (sometimes
it missed, presumably due to timing conditions). The script could not
provoke a single ENOSPC condition with the test kernel.

** Attachment added: "Test script"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1584052/+attachment/4668117/+files/test-btrfs-write-while-snapshotting.sh

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[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-05-21 Thread Oliver O.
I have now installed the kernel image on a server which previously
experienced MySQL crashes every 1 to 2 hours. The server uses MySQL for
an Icinga2 monitoring database (so it's frequently writing) and is
configured to create btrfs snapshots every 5 minutes.

# cat /proc/version
Linux version 4.4.0-22-generic (root@gomeisa) (gcc version 5.3.1 20160413 
(Ubuntu 5.3.1-14ubuntu2) ) #40~lp1584052 SMP Fri May 20 14:34:33 UTC 2016

I'll let it run for 24 hours and report back.

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  btrfs: file write crashes with false ENOSPC during snapshot creation
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[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-05-20 Thread Joseph Salisbury
The commit in mainline is:
4da2e26 btrfs: Continue write in case of can_not_nocow


I built a Xenial test kernel with a pick of 4da2e26.  The test kernel can be 
downloaded from:

http://kernel.ubuntu.com/~jsalisbury/lp1584052/

Can you test this kernel and see if it resolves this bug?

** Changed in: linux (Ubuntu)
   Status: Confirmed => In Progress

** Changed in: linux (Ubuntu)
 Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

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

** Changed in: linux (Ubuntu Xenial)
   Status: New => In Progress

** Changed in: linux (Ubuntu Xenial)
   Importance: Undecided => High

** Changed in: linux (Ubuntu Xenial)
 Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

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[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-05-20 Thread Joseph Salisbury
** Changed in: linux (Ubuntu)
   Importance: Undecided => High

** Tags added: kernel-da-key

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  btrfs: file write crashes with false ENOSPC during snapshot creation
  since kernel 4.4 - fix available

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[Bug 1584052] Re: btrfs: file write crashes with false ENOSPC during snapshot creation since kernel 4.4 - fix available

2016-05-20 Thread Oliver O.
There is no matching report in /var/crash. The bug is already diagnosed
and fixed upstream, and may be reproduced with the information provided
in https://patchwork.kernel.org/patch/7967161/

** Changed in: linux (Ubuntu)
   Status: Incomplete => Confirmed

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  btrfs: file write crashes with false ENOSPC during snapshot creation
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