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Message #151760
[Bug 1526692] Re: Ubuntu 15.10 - btrfs - Kernel Panic on btrfs balance
Did this issue start happening after an update/upgrade? Was there a
prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.4 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as
"Confirmed".
Thanks in advance.
[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-rc5-wily
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Tags added: kernel-da-key
--
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1526692
Title:
Ubuntu 15.10 - btrfs - Kernel Panic on btrfs balance
Status in linux package in Ubuntu:
Incomplete
Bug description:
[ 360.220144] INFO: task btrfs:2938 blocked for more than 120 seconds.
[ 360.220152] Tainted: G OE 4.2.0-19-generic #23-Ubuntu
[ 360.220153] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 360.220155] btrfs D ffff88087fc16640 0 2938 2937 0x00000000
[ 360.220161] ffff880833b87c78 0000000000000086 ffffffff81c13500 ffff880835525940
[ 360.220163] 0000000000000246 ffff880833b88000 ffff88085b9c0c70 ffff88085b9c0cb0
[ 360.220165] ffff880855758980 ffff8807f2c97300 ffff880833b87c98 ffffffff817ec197
[ 360.220167] Call Trace:
[ 360.220179] [<ffffffff817ec197>] schedule+0x37/0x80
[ 360.220221] [<ffffffffc03fc197>] btrfs_cancel_balance+0x127/0x180 [btrfs]
[ 360.220225] [<ffffffff810bd110>] ? wake_atomic_t_function+0x60/0x60
[ 360.220238] [<ffffffffc040bd25>] btrfs_ioctl+0xd55/0x2760 [btrfs]
[ 360.220243] [<ffffffff81192b7b>] ? lru_cache_add_active_or_unevictable+0x2b/0xa0
[ 360.220247] [<ffffffff811b5127>] ? handle_mm_fault+0xc77/0x17e0
[ 360.220249] [<ffffffff811b8acd>] ? __vma_link_rb+0xfd/0x110
[ 360.220251] [<ffffffff811b8b99>] ? vma_link+0xb9/0xc0
[ 360.220254] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480
[ 360.220256] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90
[ 360.220259] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 360.220264] INFO: task btrfs:3002 blocked for more than 120 seconds.
[ 360.220266] Tainted: G OE 4.2.0-19-generic #23-Ubuntu
[ 360.220266] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 360.220267] btrfs D ffff88087fd56640 0 3002 3001 0x00000000
[ 360.220270] ffff8807e340bc78 0000000000000086 ffff88085bf1cc80 ffff880857fa9980
[ 360.220272] 0000000000000246 ffff8807e340c000 ffff88085b9c0c70 ffff88085b9c0cb0
[ 360.220274] ffff880855758980 ffff88085a181700 ffff8807e340bc98 ffffffff817ec197
[ 360.220276] Call Trace:
[ 360.220278] [<ffffffff817ec197>] schedule+0x37/0x80
[ 360.220289] [<ffffffffc03fbfe2>] btrfs_pause_balance+0x92/0x120 [btrfs]
[ 360.220291] [<ffffffff810bd110>] ? wake_atomic_t_function+0x60/0x60
[ 360.220303] [<ffffffffc040ca0e>] btrfs_ioctl+0x1a3e/0x2760 [btrfs]
[ 360.220306] [<ffffffff81192b7b>] ? lru_cache_add_active_or_unevictable+0x2b/0xa0
[ 360.220308] [<ffffffff811b5127>] ? handle_mm_fault+0xc77/0x17e0
[ 360.220310] [<ffffffff811b8acd>] ? __vma_link_rb+0xfd/0x110
[ 360.220311] [<ffffffff811b8b99>] ? vma_link+0xb9/0xc0
[ 360.220313] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480
[ 360.220315] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90
[ 360.220317] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 480.220139] INFO: task btrfs:2938 blocked for more than 120 seconds.
[ 480.220148] Tainted: G OE 4.2.0-19-generic #23-Ubuntu
[ 480.220149] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 480.220152] btrfs D ffff88087fc16640 0 2938 2937 0x00000000
[ 480.220159] ffff880833b87c78 0000000000000086 ffffffff81c13500 ffff880835525940
[ 480.220162] 0000000000000246 ffff880833b88000 ffff88085b9c0c70 ffff88085b9c0cb0
[ 480.220166] ffff880855758980 ffff8807f2c97300 ffff880833b87c98 ffffffff817ec197
[ 480.220169] Call Trace:
[ 480.220180] [<ffffffff817ec197>] schedule+0x37/0x80
[ 480.220217] [<ffffffffc03fc197>] btrfs_cancel_balance+0x127/0x180 [btrfs]
[ 480.220222] [<ffffffff810bd110>] ? wake_atomic_t_function+0x60/0x60
[ 480.220234] [<ffffffffc040bd25>] btrfs_ioctl+0xd55/0x2760 [btrfs]
[ 480.220238] [<ffffffff81192b7b>] ? lru_cache_add_active_or_unevictable+0x2b/0xa0
[ 480.220241] [<ffffffff811b5127>] ? handle_mm_fault+0xc77/0x17e0
[ 480.220243] [<ffffffff811b8acd>] ? __vma_link_rb+0xfd/0x110
[ 480.220245] [<ffffffff811b8b99>] ? vma_link+0xb9/0xc0
[ 480.220248] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480
[ 480.220250] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90
[ 480.220253] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 480.220257] INFO: task btrfs:3002 blocked for more than 120 seconds.
[ 480.220258] Tainted: G OE 4.2.0-19-generic #23-Ubuntu
[ 480.220259] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 480.220260] btrfs D ffff88087fd56640 0 3002 3001 0x00000000
[ 480.220263] ffff8807e340bc78 0000000000000086 ffff88085bf1cc80 ffff880857fa9980
[ 480.220265] 0000000000000246 ffff8807e340c000 ffff88085b9c0c70 ffff88085b9c0cb0
[ 480.220266] ffff880855758980 ffff88085a181700 ffff8807e340bc98 ffffffff817ec197
[ 480.220268] Call Trace:
[ 480.220270] [<ffffffff817ec197>] schedule+0x37/0x80
[ 480.220282] [<ffffffffc03fbfe2>] btrfs_pause_balance+0x92/0x120 [btrfs]
[ 480.220283] [<ffffffff810bd110>] ? wake_atomic_t_function+0x60/0x60
[ 480.220294] [<ffffffffc040ca0e>] btrfs_ioctl+0x1a3e/0x2760 [btrfs]
[ 480.220297] [<ffffffff81192b7b>] ? lru_cache_add_active_or_unevictable+0x2b/0xa0
[ 480.220299] [<ffffffff811b5127>] ? handle_mm_fault+0xc77/0x17e0
[ 480.220301] [<ffffffff811b8acd>] ? __vma_link_rb+0xfd/0x110
[ 480.220302] [<ffffffff811b8b99>] ? vma_link+0xb9/0xc0
[ 480.220304] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480
[ 480.220306] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90
[ 480.220308] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 568.995645] audit: type=1400 audit(1450161017.458:22): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libvirt-313c039d-5b69-4fa1-ac3c-c2599868e26b" pid=3495 comm="apparmor_parser"
[ 568.995912] audit: type=1400 audit(1450161017.458:23): apparmor="STATUS" operation="profile_load" profile="unconfined" name="qemu_bridge_helper" pid=3495 comm="apparmor_parser"
[ 569.072231] device vnet2 entered promiscuous mode
[ 569.096185] br0: port 4(vnet2) entered listening state
[ 569.096209] br0: port 4(vnet2) entered listening state
[ 569.400115] audit: type=1400 audit(1450161017.866:24): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="libvirt-313c039d-5b69-4fa1-ac3c-c2599868e26b" pid=3520 comm="apparmor_parser"
[ 569.412287] audit: type=1400 audit(1450161017.878:25): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="qemu_bridge_helper" pid=3520 comm="apparmor_parser"
[ 572.783905] kvm: zapping shadow pages for mmio generation wraparound
[ 584.124014] br0: port 4(vnet2) entered learning state
[ 596.400977] kvm [3522]: vcpu0 unhandled rdmsr: 0x570
[ 599.132011] br0: topology change detected, propagating
[ 599.132024] br0: port 4(vnet2) entered forwarding state
[ 600.220107] INFO: task btrfs:2938 blocked for more than 120 seconds.
[ 600.220121] Tainted: G OE 4.2.0-19-generic #23-Ubuntu
[ 600.220126] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 600.220129] btrfs D ffff88087fc16640 0 2938 2937 0x00000000
[ 600.220139] ffff880833b87c78 0000000000000086 ffffffff81c13500 ffff880835525940
[ 600.220141] 0000000000000246 ffff880833b88000 ffff88085b9c0c70 ffff88085b9c0cb0
[ 600.220143] ffff880855758980 ffff8807f2c97300 ffff880833b87c98 ffffffff817ec197
[ 600.220146] Call Trace:
[ 600.220155] [<ffffffff817ec197>] schedule+0x37/0x80
[ 600.220196] [<ffffffffc03fc197>] btrfs_cancel_balance+0x127/0x180 [btrfs]
[ 600.220199] [<ffffffff810bd110>] ? wake_atomic_t_function+0x60/0x60
[ 600.220211] [<ffffffffc040bd25>] btrfs_ioctl+0xd55/0x2760 [btrfs]
[ 600.220216] [<ffffffff81192b7b>] ? lru_cache_add_active_or_unevictable+0x2b/0xa0
[ 600.220219] [<ffffffff811b5127>] ? handle_mm_fault+0xc77/0x17e0
[ 600.220221] [<ffffffff811b8acd>] ? __vma_link_rb+0xfd/0x110
[ 600.220223] [<ffffffff811b8b99>] ? vma_link+0xb9/0xc0
[ 600.220226] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480
[ 600.220228] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90
[ 600.220231] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 600.220234] INFO: task btrfs:3002 blocked for more than 120 seconds.
[ 600.220236] Tainted: G OE 4.2.0-19-generic #23-Ubuntu
[ 600.220237] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 600.220237] btrfs D ffff88087fd56640 0 3002 3001 0x00000004
[ 600.220240] ffff8807e340bc78 0000000000000086 ffff88085bf1cc80 ffff880857fa9980
[ 600.220242] 0000000000000246 ffff8807e340c000 ffff88085b9c0c70 ffff88085b9c0cb0
[ 600.220244] ffff880855758980 ffff88085a181700 ffff8807e340bc98 ffffffff817ec197
[ 600.220246] Call Trace:
[ 600.220248] [<ffffffff817ec197>] schedule+0x37/0x80
[ 600.220259] [<ffffffffc03fbfe2>] btrfs_pause_balance+0x92/0x120 [btrfs]
[ 600.220261] [<ffffffff810bd110>] ? wake_atomic_t_function+0x60/0x60
[ 600.220272] [<ffffffffc040ca0e>] btrfs_ioctl+0x1a3e/0x2760 [btrfs]
[ 600.220274] [<ffffffff81192b7b>] ? lru_cache_add_active_or_unevictable+0x2b/0xa0
[ 600.220276] [<ffffffff811b5127>] ? handle_mm_fault+0xc77/0x17e0
[ 600.220278] [<ffffffff811b8acd>] ? __vma_link_rb+0xfd/0x110
[ 600.220280] [<ffffffff811b8b99>] ? vma_link+0xb9/0xc0
[ 600.220282] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480
[ 600.220283] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90
[ 600.220286] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 720.220100] INFO: task btrfs:2938 blocked for more than 120 seconds.
[ 720.220108] Tainted: G OE 4.2.0-19-generic #23-Ubuntu
[ 720.220110] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 720.220113] btrfs D ffff88087fc16640 0 2938 2937 0x00000000
[ 720.220119] ffff880833b87c78 0000000000000086 ffffffff81c13500 ffff880835525940
[ 720.220123] 0000000000000246 ffff880833b88000 ffff88085b9c0c70 ffff88085b9c0cb0
[ 720.220126] ffff880855758980 ffff8807f2c97300 ffff880833b87c98 ffffffff817ec197
[ 720.220129] Call Trace:
[ 720.220140] [<ffffffff817ec197>] schedule+0x37/0x80
[ 720.220182] [<ffffffffc03fc197>] btrfs_cancel_balance+0x127/0x180 [btrfs]
[ 720.220186] [<ffffffff810bd110>] ? wake_atomic_t_function+0x60/0x60
[ 720.220198] [<ffffffffc040bd25>] btrfs_ioctl+0xd55/0x2760 [btrfs]
[ 720.220203] [<ffffffff81192b7b>] ? lru_cache_add_active_or_unevictable+0x2b/0xa0
[ 720.220206] [<ffffffff811b5127>] ? handle_mm_fault+0xc77/0x17e0
[ 720.220208] [<ffffffff811b8acd>] ? __vma_link_rb+0xfd/0x110
[ 720.220210] [<ffffffff811b8b99>] ? vma_link+0xb9/0xc0
[ 720.220213] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480
[ 720.220215] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90
[ 720.220218] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 720.220221] INFO: task btrfs:3002 blocked for more than 120 seconds.
[ 720.220223] Tainted: G OE 4.2.0-19-generic #23-Ubuntu
[ 720.220223] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 720.220224] btrfs D ffff88087fd56640 0 3002 3001 0x00000004
[ 720.220227] ffff8807e340bc78 0000000000000086 ffff88085bf1cc80 ffff880857fa9980
[ 720.220229] 0000000000000246 ffff8807e340c000 ffff88085b9c0c70 ffff88085b9c0cb0
[ 720.220231] ffff880855758980 ffff88085a181700 ffff8807e340bc98 ffffffff817ec197
[ 720.220233] Call Trace:
[ 720.220234] [<ffffffff817ec197>] schedule+0x37/0x80
[ 720.220246] [<ffffffffc03fbfe2>] btrfs_pause_balance+0x92/0x120 [btrfs]
[ 720.220247] [<ffffffff810bd110>] ? wake_atomic_t_function+0x60/0x60
[ 720.220259] [<ffffffffc040ca0e>] btrfs_ioctl+0x1a3e/0x2760 [btrfs]
[ 720.220261] [<ffffffff81192b7b>] ? lru_cache_add_active_or_unevictable+0x2b/0xa0
[ 720.220263] [<ffffffff811b5127>] ? handle_mm_fault+0xc77/0x17e0
[ 720.220265] [<ffffffff811b8acd>] ? __vma_link_rb+0xfd/0x110
[ 720.220266] [<ffffffff811b8b99>] ? vma_link+0xb9/0xc0
[ 720.220268] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480
[ 720.220270] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90
[ 720.220272] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 840.220097] INFO: task btrfs:2938 blocked for more than 120 seconds.
[ 840.220104] Tainted: G OE 4.2.0-19-generic #23-Ubuntu
[ 840.220105] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 840.220107] btrfs D ffff88087fc16640 0 2938 2937 0x00000000
[ 840.220112] ffff880833b87c78 0000000000000086 ffffffff81c13500 ffff880835525940
[ 840.220114] 0000000000000246 ffff880833b88000 ffff88085b9c0c70 ffff88085b9c0cb0
[ 840.220116] ffff880855758980 ffff8807f2c97300 ffff880833b87c98 ffffffff817ec197
[ 840.220118] Call Trace:
[ 840.220128] [<ffffffff817ec197>] schedule+0x37/0x80
[ 840.220159] [<ffffffffc03fc197>] btrfs_cancel_balance+0x127/0x180 [btrfs]
[ 840.220163] [<ffffffff810bd110>] ? wake_atomic_t_function+0x60/0x60
[ 840.220175] [<ffffffffc040bd25>] btrfs_ioctl+0xd55/0x2760 [btrfs]
[ 840.220180] [<ffffffff81192b7b>] ? lru_cache_add_active_or_unevictable+0x2b/0xa0
[ 840.220183] [<ffffffff811b5127>] ? handle_mm_fault+0xc77/0x17e0
[ 840.220185] [<ffffffff811b8acd>] ? __vma_link_rb+0xfd/0x110
[ 840.220187] [<ffffffff811b8b99>] ? vma_link+0xb9/0xc0
[ 840.220190] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480
[ 840.220192] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90
[ 840.220195] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 840.220198] INFO: task btrfs:3002 blocked for more than 120 seconds.
[ 840.220200] Tainted: G OE 4.2.0-19-generic #23-Ubuntu
[ 840.220201] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 840.220202] btrfs D ffff88087fd56640 0 3002 3001 0x00000004
[ 840.220204] ffff8807e340bc78 0000000000000086 ffff88085bf1cc80 ffff880857fa9980
[ 840.220206] 0000000000000246 ffff8807e340c000 ffff88085b9c0c70 ffff88085b9c0cb0
[ 840.220208] ffff880855758980 ffff88085a181700 ffff8807e340bc98 ffffffff817ec197
[ 840.220210] Call Trace:
[ 840.220212] [<ffffffff817ec197>] schedule+0x37/0x80
[ 840.220223] [<ffffffffc03fbfe2>] btrfs_pause_balance+0x92/0x120 [btrfs]
[ 840.220225] [<ffffffff810bd110>] ? wake_atomic_t_function+0x60/0x60
[ 840.220236] [<ffffffffc040ca0e>] btrfs_ioctl+0x1a3e/0x2760 [btrfs]
[ 840.220239] [<ffffffff81192b7b>] ? lru_cache_add_active_or_unevictable+0x2b/0xa0
[ 840.220241] [<ffffffff811b5127>] ? handle_mm_fault+0xc77/0x17e0
[ 840.220242] [<ffffffff811b8acd>] ? __vma_link_rb+0xfd/0x110
[ 840.220244] [<ffffffff811b8b99>] ? vma_link+0xb9/0xc0
[ 840.220246] [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480
[ 840.220248] [<ffffffff81210c89>] SyS_ioctl+0x79/0x90
[ 840.220250] [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75
---
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
DistroRelease: Ubuntu 15.10
HibernationDevice: RESUME=UUID=980993fc-6c0b-4081-b7db-803bf1c95cb9
InstallationDate: Installed on 2015-09-10 (96 days ago)
InstallationMedia: Ubuntu-Server 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: Dell Inc. PowerEdge 2950
Package: linux-image-generic 4.2.0.19.21
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-19-generic root=UUID=5fc5358f-103a-409e-9d07-2489c35ddf66 ro rootflags=subvol=@
ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-4.2.0-19-generic N/A
linux-backports-modules-4.2.0-19-generic N/A
linux-firmware 1.149.3
RfKill:
Tags: wily
UdevLog: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden: '/var/log/udev'
Uname: Linux 4.2.0-19-generic x86_64
UpgradeStatus: Upgraded to wily on 2015-11-04 (41 days ago)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 10/30/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.7.0
dmi.board.name: 0H603H
dmi.board.vendor: Dell Inc.
dmi.board.version: A06
dmi.chassis.type: 23
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.7.0:bd10/30/2010:svnDellInc.:pnPowerEdge2950:pvr:rvnDellInc.:rn0H603H:rvrA06:cvnDellInc.:ct23:cvr:
dmi.product.name: PowerEdge 2950
dmi.sys.vendor: Dell Inc.
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References
