kernel-packages team mailing list archive

[Paolo Maero <fabrica64@xxxxxxxxx>]

Public bug reported:

Reading multiple times from an ext4 disk directory and getting different
files...

I did calculate the sha256sum of all files three times between system
reboots and not all the files hash values are equal

I did this on two different PCs / different disks (both on Ubuntu 14.04
LTS) with the same result... I really don't know what to do because no
error is logged in the syslog/kernel files

I have annexed the sha256sum lists of the three times files were read

Files are not always the same, but always big

I did the same on btrfs and got the same result...

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-40-generic 3.13.0-40.69
ProcVersionSignature: Ubuntu 3.13.0-40.69-generic 3.13.11.10
Uname: Linux 3.13.0-40-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  paolom     2251 F.... pulseaudio
 /dev/snd/controlC0:  paolom     2251 F.... pulseaudio
Date: Tue Dec  9 14:43:10 2014
HibernationDevice: RESUME=UUID=fc099774-a501-42ba-9635-3ce62385a240
InstallationDate: Installed on 2014-06-16 (176 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: MICRO-STAR INTERNATIONAL CO.,LTD MS-7360
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-40-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
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-3.13.0-40-generic N/A
 linux-backports-modules-3.13.0-40-generic  N/A
 linux-firmware                             1.127.10
RfKill:
 0: phy0: Wireless LAN
 	Soft blocked: no
 	Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/04/2007
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V1.6
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: MS-7360
dmi.board.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.6:bd12/04/2007:svnMICRO-STARINTERNATIONALCO.,LTD:pnMS-7360:pvr1.0:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-7360:rvr1.0:cvnMICRO-STARINTERNATIONALCO.,LTD:ct3:cvr1.0:
dmi.product.name: MS-7360
dmi.product.version: 1.0
dmi.sys.vendor: MICRO-STAR INTERNATIONAL CO.,LTD

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


** Tags: amd64 apport-bug trusty

** Attachment added: "See bug description"
   https://bugs.launchpad.net/bugs/1400792/+attachment/4277091/+files/logs.tgz

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https://bugs.launchpad.net/bugs/1400792

Title:
  Silent ext4 read error

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Reading multiple times from an ext4 disk directory and getting
  different files...

  I did calculate the sha256sum of all files three times between system
  reboots and not all the files hash values are equal

  I did this on two different PCs / different disks (both on Ubuntu
  14.04 LTS) with the same result... I really don't know what to do
  because no error is logged in the syslog/kernel files

  I have annexed the sha256sum lists of the three times files were read

  Files are not always the same, but always big

  I did the same on btrfs and got the same result...

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-40-generic 3.13.0-40.69
  ProcVersionSignature: Ubuntu 3.13.0-40.69-generic 3.13.11.10
  Uname: Linux 3.13.0-40-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  paolom     2251 F.... pulseaudio
   /dev/snd/controlC0:  paolom     2251 F.... pulseaudio
  Date: Tue Dec  9 14:43:10 2014
  HibernationDevice: RESUME=UUID=fc099774-a501-42ba-9635-3ce62385a240
  InstallationDate: Installed on 2014-06-16 (176 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: MICRO-STAR INTERNATIONAL CO.,LTD MS-7360
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-40-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  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-3.13.0-40-generic N/A
   linux-backports-modules-3.13.0-40-generic  N/A
   linux-firmware                             1.127.10
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/04/2007
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: V1.6
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: MS-7360
  dmi.board.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.6:bd12/04/2007:svnMICRO-STARINTERNATIONALCO.,LTD:pnMS-7360:pvr1.0:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-7360:rvr1.0:cvnMICRO-STARINTERNATIONALCO.,LTD:ct3:cvr1.0:
  dmi.product.name: MS-7360
  dmi.product.version: 1.0
  dmi.sys.vendor: MICRO-STAR INTERNATIONAL CO.,LTD

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