[Bug 617959] [NEW] kernel BUG at /build/buildd/linux-2.6.35/fs/btrfs/volumes.c:1980!

[Brian Rogers]

Public bug reported:

This oops happens during a "btrfs filesystem balance /" immediately
after the following messages in dmesg:

[18909.687127] btrfs: relocating block group 511130468352 flags 1
[18910.145061] btrfs_readpage_end_io_hook: 18 callbacks suppressed
[18910.145066] btrfs csum failed ino 414 off 9949184 csum 1385781806 private 1385781805
[18910.243558] btrfs csum failed ino 414 off 9949184 csum 1385781806 private 1385781805
[18910.279124] btrfs csum failed ino 414 off 9949184 csum 1385781806 private 1385781805
[18910.310181] btrfs csum failed ino 414 off 9949184 csum 1385781806 private 1385781805

The "btrfs filesystem balance /" process also crashes. I deleted all
files with an inode numbered from 414-418, but a rebalance still oopses
and reports an inode in that range.

ProblemType: KernelOops
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-15-generic 2.6.35-15.21
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-15.21-generic 2.6.35.1
Uname: Linux 2.6.35-15-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  brian      2043 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf8400000 irq 49'
   Mixer name	: 'Realtek ALC268'
   Components	: 'HDA:10ec0268,14c00024,00100003 HDA:10573055,10573055,00100700'
   Controls      : 15
   Simple ctrls  : 10
Date: Sat Aug 14 07:38:32 2010
Failure: oops
HibernationDevice: RESUME=LABEL=Swap
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
MachineType: - N/A
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-15-generic root=/dev/sda2 ro rootfstype=btrfs rootflags=compress,noatime,subvol=system crashkernel=384M-2G:64M,2G-:128M quiet splash
RelatedPackageVersions: linux-firmware 1.37
SourcePackage: linux
Title: kernel BUG at /build/buildd/linux-2.6.35/fs/btrfs/volumes.c:1980!
dmi.bios.date: 06/18/2008
dmi.bios.vendor: COMPAL
dmi.bios.version: 1.18
dmi.board.name: IFT01
dmi.board.vendor: -
dmi.board.version: IFT00
dmi.chassis.asset.tag: -
dmi.chassis.type: 10
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnCOMPAL:bvr1.18:bd06/18/2008:svn-:pnN/A:pvrN/A:rvn-:rnIFT01:rvrIFT00:cvnNoEnclosure:ct10:cvrN/A:
dmi.product.name: N/A
dmi.product.version: N/A
dmi.sys.vendor: -

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-kerneloops filesystem kernel-oops maverick needs-upstream-testing

-- 
kernel BUG at /build/buildd/linux-2.6.35/fs/btrfs/volumes.c:1980!
https://bugs.launchpad.net/bugs/617959
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