Public bug reported:
1. disco
2. # apt-cache policy linux-image-virtual
linux-image-virtual:
Installed: 5.0.0.13.14
Candidate: 5.0.0.13.14
Version table:
*** 5.0.0.13.14 500
500 http://archive.ubuntu.com/ubuntu disco/main amd64 Packages
100 /var/lib/dpkg/status
3. installation completes sucessfully
4. Running an installation of Disco creating filesystems and probing things
will hang (stuck task) every so often. When it happens, the kernel throws an
oops and bad rip value.
[ 967.810391] INFO: task mdadm:12213 blocked for more than 120 seconds.
[ 967.811787] Tainted: P O 5.0.0-13-generic #14-Ubuntu
[ 967.813330] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 967.815500] mdadm D 0 12213 12207 0x00000000
[ 967.815503] Call Trace:
[ 967.815509] __schedule+0x2d0/0x840
[ 967.815511] ? __switch_to_asm+0x40/0x70
[ 967.815512] ? __switch_to_asm+0x34/0x70
[ 967.815514] schedule+0x2c/0x70
[ 967.815516] schedule_preempt_disabled+0xe/0x10
[ 967.815518] __mutex_lock.isra.10+0x2e4/0x4c0
[ 967.815522] ? exact_lock+0x11/0x20
[ 967.815524] __mutex_lock_slowpath+0x13/0x20
[ 967.815528] mutex_lock+0x2c/0x30
[ 967.815530] __blkdev_get+0x7b/0x550
[ 967.815532] ? bd_acquire+0xd0/0xd0
[ 967.815533] blkdev_get+0x10c/0x330
[ 967.815535] ? bd_acquire+0xd0/0xd0
[ 967.815537] blkdev_open+0x92/0x100
[ 967.815539] do_dentry_open+0x143/0x3a0
[ 967.815540] vfs_open+0x2d/0x30
[ 967.815542] path_openat+0x2d4/0x16d0
[ 967.815547] ? put_device+0x17/0x20
[ 967.815552] ? scsi_device_put+0x2b/0x30
[ 967.815553] do_filp_open+0x93/0x100
[ 967.815555] ? strncpy_from_user+0x56/0x1b0
[ 967.815558] ? __alloc_fd+0x46/0x140
[ 967.815560] do_sys_open+0x177/0x280
[ 967.815561] ? _cond_resched+0x19/0x30
[ 967.815563] __x64_sys_openat+0x20/0x30
[ 967.815566] do_syscall_64+0x5a/0x110
[ 967.815567] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 967.815568] RIP: 0033:0x7faa36406cce
[ 967.815572] Code: Bad RIP value.
[ 967.815573] RSP: 002b:00007ffedb663f80 EFLAGS: 00000246 ORIG_RAX:
0000000000000101
[ 967.815574] RAX: ffffffffffffffda RBX: 0000000000004000 RCX: 00007faa36406cce
[ 967.815575] RDX: 0000000000004000 RSI: 0000564df70257b0 RDI: 00000000ffffff9c
[ 967.815576] RBP: 0000564df70257b0 R08: 0000564df70257b0 R09: 0000000000000000
[ 967.815576] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffedb664240
[ 967.815577] R13: 0000000000000000 R14: 0000000000000001 R15: 0000564df7023e00
[ 967.799227] INFO: task mkfs.btrfs:3767 blocked for more than 120 seconds.
[ 967.803509] Tainted: P O 5.0.0-13-generic #14-Ubuntu
[ 967.807192] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 967.810235] mkfs.btrfs D 0 3767 1866 0x00000000
[ 967.810239] Call Trace:
[ 967.810251] __schedule+0x2d0/0x840
[ 967.810254] ? __switch_to_asm+0x34/0x70
[ 967.810256] ? __switch_to_asm+0x40/0x70
[ 967.810258] schedule+0x2c/0x70
[ 967.810260] schedule_timeout+0x258/0x360
[ 967.810277] wait_for_completion+0xb7/0x140
[ 967.810281] ? wake_up_q+0x80/0x80
[ 967.810293] __floppy_read_block_0+0x138/0x190 [floppy]
[ 967.810298] ? floppy_cmos_show+0x30/0x30 [floppy]
[ 967.810302] floppy_revalidate+0xf8/0x230 [floppy]
[ 967.810307] check_disk_change+0x62/0x70
[ 967.810309] floppy_open+0x2ae/0x380 [floppy]
[ 967.810311] __blkdev_get+0xe5/0x550
[ 967.810313] ? bd_acquire+0xd0/0xd0
[ 967.810315] blkdev_get+0x10c/0x330
[ 967.810316] ? bd_acquire+0xd0/0xd0
[ 967.810318] blkdev_open+0x92/0x100
[ 967.810321] do_dentry_open+0x143/0x3a0
[ 967.810323] vfs_open+0x2d/0x30
[ 967.810326] path_openat+0x2d4/0x16d0
[ 967.810328] ? filename_lookup.part.60+0xe0/0x170
[ 967.810332] ? strncpy_from_user+0x56/0x1b0
[ 967.810333] do_filp_open+0x93/0x100
[ 967.810353] ? strncpy_from_user+0x56/0x1b0
[ 967.810358] ? __alloc_fd+0x46/0x140
[ 967.810360] do_sys_open+0x177/0x280
[ 967.810362] ? _cond_resched+0x19/0x30
[ 967.810364] __x64_sys_openat+0x20/0x30
[ 967.810368] do_syscall_64+0x5a/0x110
[ 967.810369] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 967.810372] RIP: 0033:0x7f46b99374db
[ 967.810377] Code: Bad RIP value.
[ 967.810378] RSP: 002b:00007ffc9e849d70 EFLAGS: 00000246 ORIG_RAX:
0000000000000101
[ 967.810380] RAX: ffffffffffffffda RBX: 0000556674552080 RCX: 00007f46b99374db
[ 967.810381] RDX: 0000000000080000 RSI: 0000556674552100 RDI: 00000000ffffff9c
[ 967.810382] RBP: 000055667454a270 R08: 0000556674552120 R09: 0000000000004000
[ 967.810382] R10: 0000000000000000 R11: 0000000000000246 R12: 000000005cb8c394
[ 967.810383] R13: 00007f46b99993c4 R14: 00000000dcb8c394 R15: 00007f46b9988425
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: linux-image-virtual 5.0.0.13.14
ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
Uname: Linux 5.0.0-13-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 33 Apr 18 18:35 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/timer'] failed with
exit code 1:
CRDA: N/A
Date: Thu Apr 18 18:45:52 2019
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb: Error: command ['lsusb'] failed with exit code 1:
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
PciMultimedia:
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=C.UTF-8
SHELL=/bin/bash
ProcFB: 0 bochsdrmfb
ProcKernelCmdLine: root=squash:http://10.245.168.20:34259/root/squashfs
ds=nocloud-net;seedfrom=http://10.245.168.20:34259/ console=ttyS0
overlayroot=tmpfs ro systemd.mask=snapd.seeded.service
systemd.mask=snapd.service ip=:::::BOOTIF:dhcp BOOTIF=01-52-54-00-12-34-01
RelatedPackageVersions:
linux-restricted-modules-5.0.0-13-generic N/A
linux-backports-modules-5.0.0-13-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: 1.12.0-1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-disco
dmi.modalias:
dmi:bvnSeaBIOS:bvr1.12.0-1:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-disco:cvnQEMU:ct1:cvrpc-i440fx-disco:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-disco
dmi.sys.vendor: QEMU
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug curtin-vmtest disco uec-images
--
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https://bugs.launchpad.net/bugs/1825413
Title:
mdadm, mkfs, other io commands hang, stuck task, bad rip
Status in linux package in Ubuntu:
Confirmed
Bug description:
1. disco
2. # apt-cache policy linux-image-virtual
linux-image-virtual:
Installed: 5.0.0.13.14
Candidate: 5.0.0.13.14
Version table:
*** 5.0.0.13.14 500
500 http://archive.ubuntu.com/ubuntu disco/main amd64 Packages
100 /var/lib/dpkg/status
3. installation completes sucessfully
4. Running an installation of Disco creating filesystems and probing things
will hang (stuck task) every so often. When it happens, the kernel throws an
oops and bad rip value.
[ 967.810391] INFO: task mdadm:12213 blocked for more than 120 seconds.
[ 967.811787] Tainted: P O 5.0.0-13-generic #14-Ubuntu
[ 967.813330] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[ 967.815500] mdadm D 0 12213 12207 0x00000000
[ 967.815503] Call Trace:
[ 967.815509] __schedule+0x2d0/0x840
[ 967.815511] ? __switch_to_asm+0x40/0x70
[ 967.815512] ? __switch_to_asm+0x34/0x70
[ 967.815514] schedule+0x2c/0x70
[ 967.815516] schedule_preempt_disabled+0xe/0x10
[ 967.815518] __mutex_lock.isra.10+0x2e4/0x4c0
[ 967.815522] ? exact_lock+0x11/0x20
[ 967.815524] __mutex_lock_slowpath+0x13/0x20
[ 967.815528] mutex_lock+0x2c/0x30
[ 967.815530] __blkdev_get+0x7b/0x550
[ 967.815532] ? bd_acquire+0xd0/0xd0
[ 967.815533] blkdev_get+0x10c/0x330
[ 967.815535] ? bd_acquire+0xd0/0xd0
[ 967.815537] blkdev_open+0x92/0x100
[ 967.815539] do_dentry_open+0x143/0x3a0
[ 967.815540] vfs_open+0x2d/0x30
[ 967.815542] path_openat+0x2d4/0x16d0
[ 967.815547] ? put_device+0x17/0x20
[ 967.815552] ? scsi_device_put+0x2b/0x30
[ 967.815553] do_filp_open+0x93/0x100
[ 967.815555] ? strncpy_from_user+0x56/0x1b0
[ 967.815558] ? __alloc_fd+0x46/0x140
[ 967.815560] do_sys_open+0x177/0x280
[ 967.815561] ? _cond_resched+0x19/0x30
[ 967.815563] __x64_sys_openat+0x20/0x30
[ 967.815566] do_syscall_64+0x5a/0x110
[ 967.815567] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 967.815568] RIP: 0033:0x7faa36406cce
[ 967.815572] Code: Bad RIP value.
[ 967.815573] RSP: 002b:00007ffedb663f80 EFLAGS: 00000246 ORIG_RAX:
0000000000000101
[ 967.815574] RAX: ffffffffffffffda RBX: 0000000000004000 RCX:
00007faa36406cce
[ 967.815575] RDX: 0000000000004000 RSI: 0000564df70257b0 RDI:
00000000ffffff9c
[ 967.815576] RBP: 0000564df70257b0 R08: 0000564df70257b0 R09:
0000000000000000
[ 967.815576] R10: 0000000000000000 R11: 0000000000000246 R12:
00007ffedb664240
[ 967.815577] R13: 0000000000000000 R14: 0000000000000001 R15:
0000564df7023e00
[ 967.799227] INFO: task mkfs.btrfs:3767 blocked for more than 120 seconds.
[ 967.803509] Tainted: P O 5.0.0-13-generic #14-Ubuntu
[ 967.807192] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[ 967.810235] mkfs.btrfs D 0 3767 1866 0x00000000
[ 967.810239] Call Trace:
[ 967.810251] __schedule+0x2d0/0x840
[ 967.810254] ? __switch_to_asm+0x34/0x70
[ 967.810256] ? __switch_to_asm+0x40/0x70
[ 967.810258] schedule+0x2c/0x70
[ 967.810260] schedule_timeout+0x258/0x360
[ 967.810277] wait_for_completion+0xb7/0x140
[ 967.810281] ? wake_up_q+0x80/0x80
[ 967.810293] __floppy_read_block_0+0x138/0x190 [floppy]
[ 967.810298] ? floppy_cmos_show+0x30/0x30 [floppy]
[ 967.810302] floppy_revalidate+0xf8/0x230 [floppy]
[ 967.810307] check_disk_change+0x62/0x70
[ 967.810309] floppy_open+0x2ae/0x380 [floppy]
[ 967.810311] __blkdev_get+0xe5/0x550
[ 967.810313] ? bd_acquire+0xd0/0xd0
[ 967.810315] blkdev_get+0x10c/0x330
[ 967.810316] ? bd_acquire+0xd0/0xd0
[ 967.810318] blkdev_open+0x92/0x100
[ 967.810321] do_dentry_open+0x143/0x3a0
[ 967.810323] vfs_open+0x2d/0x30
[ 967.810326] path_openat+0x2d4/0x16d0
[ 967.810328] ? filename_lookup.part.60+0xe0/0x170
[ 967.810332] ? strncpy_from_user+0x56/0x1b0
[ 967.810333] do_filp_open+0x93/0x100
[ 967.810353] ? strncpy_from_user+0x56/0x1b0
[ 967.810358] ? __alloc_fd+0x46/0x140
[ 967.810360] do_sys_open+0x177/0x280
[ 967.810362] ? _cond_resched+0x19/0x30
[ 967.810364] __x64_sys_openat+0x20/0x30
[ 967.810368] do_syscall_64+0x5a/0x110
[ 967.810369] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 967.810372] RIP: 0033:0x7f46b99374db
[ 967.810377] Code: Bad RIP value.
[ 967.810378] RSP: 002b:00007ffc9e849d70 EFLAGS: 00000246 ORIG_RAX:
0000000000000101
[ 967.810380] RAX: ffffffffffffffda RBX: 0000556674552080 RCX:
00007f46b99374db
[ 967.810381] RDX: 0000000000080000 RSI: 0000556674552100 RDI:
00000000ffffff9c
[ 967.810382] RBP: 000055667454a270 R08: 0000556674552120 R09:
0000000000004000
[ 967.810382] R10: 0000000000000000 R11: 0000000000000246 R12:
000000005cb8c394
[ 967.810383] R13: 00007f46b99993c4 R14: 00000000dcb8c394 R15:
00007f46b9988425
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: linux-image-virtual 5.0.0.13.14
ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
Uname: Linux 5.0.0-13-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 33 Apr 18 18:35 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord':
'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/timer'] failed
with exit code 1:
CRDA: N/A
Date: Thu Apr 18 18:45:52 2019
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb: Error: command ['lsusb'] failed with exit code 1:
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
PciMultimedia:
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=C.UTF-8
SHELL=/bin/bash
ProcFB: 0 bochsdrmfb
ProcKernelCmdLine: root=squash:http://10.245.168.20:34259/root/squashfs
ds=nocloud-net;seedfrom=http://10.245.168.20:34259/ console=ttyS0
overlayroot=tmpfs ro systemd.mask=snapd.seeded.service
systemd.mask=snapd.service ip=:::::BOOTIF:dhcp BOOTIF=01-52-54-00-12-34-01
RelatedPackageVersions:
linux-restricted-modules-5.0.0-13-generic N/A
linux-backports-modules-5.0.0-13-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: 1.12.0-1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-disco
dmi.modalias:
dmi:bvnSeaBIOS:bvr1.12.0-1:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-disco:cvnQEMU:ct1:cvrpc-i440fx-disco:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-disco
dmi.sys.vendor: QEMU
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