Public bug reported:
Running rebalance on a 3 drive btrfs volume with both data and metadata
set to raid1 leads to a kernel panic. In my case everything is on BTRFS
so the only way I was able to capture the attached backtrace was by
sending syslog messages to another server.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-22-generic 4.2.0-22.27
ProcVersionSignature: Ubuntu 4.2.0-22.27-generic 4.2.6
Uname: Linux 4.2.0-22-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Dec 24 10:52 seq
crw-rw---- 1 root audio 116, 33 Dec 24 10:52 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.19.1-0ubuntu5
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: Thu Dec 24 13:47:46 2015
HibernationDevice: RESUME=UUID=9087f95c-b9c5-4b2e-8837-758c7f9e978c
InstallationDate: Installed on 2015-12-04 (19 days ago)
InstallationMedia: Ubuntu-Server 15.10 "Wily Werewolf" - Release amd64
(20151021)
MachineType: Supermicro H8SGL
PciMultimedia:
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/@boot/vmlinuz-4.2.0-22-generic
root=UUID=341b28d7-2939-4b10-afc8-b865fd46eec6 ro rootflags=subvol=@
RelatedPackageVersions:
linux-restricted-modules-4.2.0-22-generic N/A
linux-backports-modules-4.2.0-22-generic N/A
linux-firmware 1.149.3
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/25/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3.5
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: H8SGL
dmi.board.vendor: Supermicro
dmi.board.version: 1234567890
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 17
dmi.chassis.vendor: Supermicro
dmi.chassis.version: 1234567890
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr3.5:bd11/25/2013:svnSupermicro:pnH8SGL:pvr1234567890:rvnSupermicro:rnH8SGL:rvr1234567890:cvnSupermicro:ct17:cvr1234567890:
dmi.product.name: H8SGL
dmi.product.version: 1234567890
dmi.sys.vendor: Supermicro
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug wily
** Attachment added: "backtrace"
https://bugs.launchpad.net/bugs/1529146/+attachment/4539835/+files/btrfs_backtrace.txt
** Summary changed:
- btrfs rebalance leads to kernel panic
+ btrfs balance leads to kernel panic
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https://bugs.launchpad.net/bugs/1529146
Title:
btrfs balance leads to kernel panic
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