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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1359706

Title:
  EXT4 file system corruption on ubuntu server 14.04 LTS

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  There was extensive file system corruption triggered by a user (non-
  root) program consuming all memory. Dmesg contained following
  messages:

  [2678426.843981] Out of memory: Kill process 31328 (python) score 983 or sacrifice child
  [2678426.844151] Killed process 31328 (python) total-vm:60801412kB, anon-rss:60694516kB, file-rss:0kB
  [2893469.391974] EXT4-fs warning (device dm-2): ext4_end_bio:317: I/O error -5 writing to inode 7865240 (offset 0 size 0 starting block 49231)
  [2893469.391982] Buffer I/O error on device dm-2, logical block 49231
  [2893469.392032] Buffer I/O error on device dm-2, logical block 49232
  [2893469.395494] Buffer I/O error on device dm-2, logical block 49233
  [2893469.569757] EXT4-fs warning (device dm-2): ext4_end_bio:317: I/O error -5 writing to inode 7864978 (offset 0 size 0 starting block 20808467)
  [2893469.569762] Buffer I/O error on device dm-2, logical block 20808467
  [2893469.569896] EXT4-fs warning (device dm-2): ext4_end_bio:317: I/O error -5 writing to inode 7866610 (offset 0 size 0 starting block 79732436)
  [2893469.569899] Buffer I/O error on device dm-2, logical block 79732436
  [2893469.570176] EXT4-fs warning (device dm-2): ext4_end_bio:317: I/O error -5 writing to inode 7866610 (offset 8192 size 4096 starting block 109098591)
  [2893469.570180] Buffer I/O error on device dm-2, logical block 109098591
  [2893469.707534] EXT4-fs warning (device dm-2): ext4_end_bio:317: I/O error -5 writing to inode 7865240 (offset 0 size 0 starting block 49217)
  [2893469.707539] Buffer I/O error on device dm-2, logical block 49217
  [2893469.707578] Buffer I/O error on device dm-2, logical block 49218
  [2893469.707674] EXT4-fs warning (device dm-2): ext4_end_bio:317: I/O error -5 writing to inode 7865240 (offset 0 size 0 starting block 49223)
  [2893469.707679] Buffer I/O error on device dm-2, logical block 49223
  [2893469.707768] EXT4-fs warning (device dm-2): ext4_end_bio:317: I/O error -5 writing to inode 7865240 (offset 0 size 0 starting block 49226)
  [2893469.707773] Buffer I/O error on device dm-2, logical block 49226
  [2893469.707859] EXT4-fs warning (device dm-2): ext4_end_bio:317: I/O error -5 writing to inode 7865240 (offset 0 size 0 starting block 49229)
  [2893469.707870] EXT4-fs warning (device dm-2): ext4_end_bio:317: I/O error -5 writing to inode 7864600 (offset 0 size 0 starting block 44853)
  [2893469.707876] EXT4-fs warning (device dm-2): ext4_end_bio:317: I/O error -5 writing to inode 7864600 (offset 0 size 0 starting block 44858)
  [2893469.726747] Aborting journal on device dm-2-8.
  [2893469.768725] init: rsyslog main process (919) killed by BUS signal
  [2893469.768766] init: rsyslog main process ended, respawning
  [2893469.867576] Buffer I/O error on device dm-2, logical block 65044480
  [2893469.867617] lost page write due to I/O error on dm-2
  [2893469.867641] JBD2: Error -5 detected when updating journal superblock for dm-2-8.
  [2893470.103486] Buffer I/O error on device dm-2, logical block 0
  [2893470.103524] lost page write due to I/O error on dm-2
  [2893470.103568] EXT4-fs error (device dm-2): ext4_journal_check_start:56: Detected aborted journal
  [2893470.103684] EXT4-fs (dm-2): Remounting filesystem read-only
  [2893470.103770] EXT4-fs (dm-2): previous I/O error to superblock detected
  [2893470.197496] Buffer I/O error on device dm-2, logical block 0
  [2893470.197584] lost page write due to I/O error on dm-2
  [2893470.197720] Core dump to |/usr/share/apport/apport 439 7 0 439 pipe failed
  [2893470.208395] init: rsyslog pre-start process (439) killed by BUS signal
  [2893470.378616] Core dump to |/usr/share/apport/apport 442 7 0 442 pipe failed
  [2893470.380183] init: startpar-bridge (rsyslog--stopped) main process (442) killed by BUS signal
  [2893511.046711] Core dump to |/usr/share/apport/apport 1421 7 18446744073709551615 1421 pipe failed
  [2903746.904285] EXT4-fs warning (device dm-1): __ext4_read_dirblock:681: error reading directory block (ino 174523398, block 0)
  [2903773.782839] Aborting journal on device dm-1-8.
  [2903773.801696] Buffer I/O error on device dm-1, logical block 1048084480
  [2903773.801799] lost page write due to I/O error on dm-1
  [2903773.801817] JBD2: Error -5 detected when updating journal superblock for dm-1-8.
  [2903774.966747] Buffer I/O error on device dm-1, logical block 0
  [2903774.968009] lost page write due to I/O error on dm-1
  [2903774.968186] EXT4-fs error (device dm-1): ext4_journal_check_start:56: Detected aborted journal
  [2903774.969608] EXT4-fs (dm-1): Remounting filesystem read-only
  [2903774.970999] EXT4-fs (dm-1): previous I/O error to superblock detected
  [2903775.026543] Buffer I/O error on device dm-1, logical block 0
  [2903775.027901] lost page write due to I/O error on dm-1
  [2903815.909779] Core dump to |/usr/share/apport/apport 3193 7 0 3193 pipe failed
  [2929832.871589] init: Failed to write to log file /var/log/upstart/systemd-logind.log

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-34-generic 3.13.0-34.60
  ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
  Uname: Linux 3.13.0-34-generic x86_64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 elo   21 13:53 seq
   crw-rw---- 1 root audio 116, 33 elo   21 13:53 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.14.1-0ubuntu3.3
  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:
  CRDA: Error: [Errno 2] No such file or directory: 'iw'
  CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
  Date: Thu Aug 21 14:52:27 2014
  InstallationDate: Installed on 2014-07-07 (45 days ago)
  InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  IwConfig:
   eth0      no wireless extensions.
   
   eth1      no wireless extensions.
   
   lo        no wireless extensions.
  Lsusb:
   Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd 
   Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: Red Hat Inc. OpenStack Nova
  PciMultimedia:
   
  ProcFB: 0 cirrusdrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-34-generic root=/dev/mapper/vg0-lv0 ro
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  WifiSyslog:
   
  dmi.bios.date: 01/01/2007
  dmi.bios.vendor: Seabios
  dmi.bios.version: 0.5.1
  dmi.chassis.type: 1
  dmi.chassis.vendor: Red Hat
  dmi.modalias: dmi:bvnSeabios:bvr0.5.1:bd01/01/2007:svnRedHatInc.:pnOpenStackNova:pvr2013.1.3-2.el6:cvnRedHat:ct1:cvr:
  dmi.product.name: OpenStack Nova
  dmi.product.version: 2013.1.3-2.el6
  dmi.sys.vendor: Red Hat Inc.

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