kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Can you reproduce the panic?  If so, can you see if it also happens with
prior kernels and if it's new in 3.16?

Also, it might be a good test to see if this happens with the latest mainline kernel:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.17-rc2-utopic/

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

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https://bugs.launchpad.net/bugs/1362742

Title:
  kernel panic attempting to unmount device with errors

Status in “linux” package in Ubuntu:
  New

Bug description:
  /var/log/kern.log shows:

  
  Aug 28 17:32:20 faire kernel: [37077.847109] EXT4-fs (sde1): warning: maximal mount count reached, running e2fsck is recommended
  Aug 28 17:32:20 faire kernel: [37077.848127] EXT4-fs (sde1): recovery complete
  Aug 28 17:32:20 faire kernel: [37077.848915] EXT4-fs (sde1): mounted filesystem with ordered data mode. Opts: (null)
  Aug 28 17:37:17 faire kernel: [37374.626258] EXT4-fs (sdd1): error count since last fsck: 8
  Aug 28 17:37:17 faire kernel: [37374.626262] EXT4-fs (sdd1): initial error at time 1389635241: ext4_mb_generate_buddy:756
  Aug 28 17:37:17 faire kernel: [37374.626264] EXT4-fs (sdd1): last error at time 1391881607: ext4_mb_generate_buddy:756
  Aug 28 19:03:10 faire kernel: [    0.000000] Initializing cgroup subsys cpuset
  Aug 28 19:03:10 faire kernel: [    0.000000] Initializing cgroup subsys cpu
  Aug 28 19:03:10 faire kernel: [    0.000000] Initializing cgroup subsys cpuacct
  Aug 28 19:03:10 faire kernel: [    0.000000] Linux version 3.16.0-10-generic (buildd@aatxe) (gcc version 4.9.1 (Ubuntu/Linaro 4.9.1-8ubuntu1) ) #15-Ubuntu SMP Thu Aug 21 16:26:44 UTC 2014 (Ubuntu 3.16.0-10.15-generic 3.16.1)
  Aug 28 19:03:10 faire kernel: [    0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.16.0-10-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  Aug 28 19:03:10 faire kernel: [    0.000000] KERNEL supported cpus:

  It seems that I have a USB stick which has errors. When I attempted to
  unmount it, my system froze and had to be alt-sysreq s-u-b'd.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-generic 3.16.0.10.11
  ProcVersionSignature: Ubuntu 3.16.0-10.15-generic 3.16.1
  Uname: Linux 3.16.0-10-generic x86_64
  ApportVersion: 2.14.6-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  james      3770 F.... pulseaudio
   /dev/snd/controlC0:  james      3770 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu Aug 28 19:07:46 2014
  HibernationDevice: RESUME=UUID=db600bbe-faca-41f4-9338-c3e8e227599a
  InstallationDate: Installed on 2014-04-11 (138 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140409)
  MachineType: LENOVO 20AQCTO1WW
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-10-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-10-generic N/A
   linux-backports-modules-3.16.0-10-generic  N/A
   linux-firmware                             1.132
  SourcePackage: linux
  UpgradeStatus: Upgraded to utopic on 2014-05-08 (112 days ago)
  dmi.bios.date: 02/10/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GJET71WW (2.21 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20AQCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: 0B98405 STD
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGJET71WW(2.21):bd02/10/2014:svnLENOVO:pn20AQCTO1WW:pvrThinkPadT440s:rvnLENOVO:rn20AQCTO1WW:rvr0B98405STD:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20AQCTO1WW
  dmi.product.version: ThinkPad T440s
  dmi.sys.vendor: LENOVO

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