mythbuntu-bugs team mailing list archive

[papukaija <453579@xxxxxxxxxxxxxxxxxx>]

@era: Unfortunately I won't edit this bug's title nor reopen it due to
reasosn mentioned in comment 215 which refers to comment 206. You should
report your issue to Launchpad against the linux package. You can do so
by running the following command from a Terminal
(Applications->Accessories->Terminal) and it will automatically gather
and attach debug information to that report:

ubuntu-bug linux

Please try to provide as much information as possible in the bug
description:

    1) The majority of kernel bug are hardware specific so be sure to note what hardware/device is being used.
    2) Document any known steps to reproduce the bug.
    3) Also note whether the bug exists in previous kernel versions of Ubuntu or if it's a regression from previous kernel versions.
    4) Finally, it will help if you can test the latest development Ubuntu kernel version as well as the latest upstream mainline kernel[1]. 

More detailed instructions to file a bug are available at:
https://help.ubuntu.com/community/ReportingBugs#How%20to%20report%20bugs

[1]: https://wiki.ubuntu.com/Kernel/MainlineBuilds

Thanks in advance.

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https://bugs.launchpad.net/bugs/453579

Title:
  in-place corruption of large files *without fsck or reboot* reported
  with linux 2.6.31-14.46 on ext4

Status in The Linux Kernel:
  Invalid
Status in Release Notes for Ubuntu:
  Fix Released
Status in “linux” package in Ubuntu:
  Invalid
Status in “linux” source package in Karmic:
  Invalid

Bug description:
  There are worrying reports of filesystem corruption on ext4 in karmic.
  Scott says:

  12:36 < Keybuk> this whole ext4 thing is worrying me
  12:36 < Keybuk> I just downloaded an iso image, md5sum didn't match
  12:36 < Keybuk> downloaded it into an ext3 partition, matched just fine
  12:59 < Keybuk> and I know mvo has seen bugs with corrupted .debs in /var/cache/apt/archives
  12:59 < Keybuk> which seems to imply its any file large enough to use lots of extents

  I'm opening this bug report so that this bug gets tracked & triaged
  for karmic.  If we're unable to isolate the issue, we should consider
  rolling back to ext3 as the default filesystem in the installer.

  ProblemType: Bug
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  vorlon     3350 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xee240000 irq 17'
     Mixer name	: 'Analog Devices AD1981'
     Components	: 'HDA:11d41981,17aa2025,00100200'
     Controls      : 20
     Simple ctrls  : 11
  Date: Fri Oct 16 16:01:26 2009
  DistroRelease: Ubuntu 9.10
  HibernationDevice: RESUME=UUID=f108133c-6b9d-4d28-9058-0b3a0c5549b4
  MachineType: LENOVO 6371CTO
  Package: linux-image-2.6.31-14-generic 2.6.31-14.46
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcCmdLine: root=/dev/mapper/hostname-root ro
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.31-13.44-generic
  RelatedPackageVersions: linux-firmware 1.22
  SourcePackage: linux
  Uname: Linux 2.6.31-13-generic x86_64
  WpaSupplicantLog:

  dmi.bios.date: 12/27/2006
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7IET23WW (1.04 )
  dmi.board.name: 6371CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr7IET23WW(1.04):bd12/27/2006:svnLENOVO:pn6371CTO:pvrThinkPadT60:rvnLENOVO:rn6371CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 6371CTO
  dmi.product.version: ThinkPad T60
  dmi.sys.vendor: LENOVO

  ls