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[Launchpad Bug Tracker <1024309@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

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

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https://bugs.launchpad.net/bugs/1024309

Title:
  Kernel panic - not syncing

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  Since May, some of my servers crashed from time to time. This one
  crashed today. No information is available in syslog and other log
  files. The CPU load was not very high, but a lot of swap was used,
  even though the disks were not very active.

  Here's the OCRed screenshot of the hanging system:

  [5288936.542226] [<ffffffff81011e9b>] cpu_idle+0xeb/0x110
  [5288936.542229] [<ffffffff81552b33>] start_secondary+0xa8/Oxaa
  [5288936.542231] Code: 06 89 85 c0 fe ff ff c7 85 c4 fe ff ff 01 00 00 00 e9 9'
  fb ff ff 90 48 8b 95 e0 fe ff ff 48 8b 45 a8 8b 72 08 48 e1 e0 0a 31 d2 <48) f’
  f6 48 8b 75 b0 48 89 45 a0 31 c0 48 85 f6 74 0c 48 8b 45
  [5288936.542248] RIP [<ffffffff810562a4>] find_busiest_group+0x634/0x8f0
  [5288936.542251] RSP <ffff88101cce3c58>
  [5288936.542253] ---[ end trace 17d6ca884388b3c0 ]--—
  [5288936.542255] Kernel panic — not syncing: attempted to kill the idle task!
  [5288936.54225?] Pid: 0, comm: swapper Tainted: G D 2.6.32-24-server #
  -Ubuntu
  [5288936.542259] Call Trace:
  [5288936.542261] [<ffffffff8155?dda>] panic+0x78/0x137
  [5288936.542266] [<ffffffff8106b53a>] do_exit+0x35a/0x380
  [5288936.542269] [<ffffffff8155bc40>] oops_end+0xb0/0xf0
  [5288936.5422?1] [<ffffffff8101?11b>] die+0x5b/0x90
  [5288936.5422?3] [<ffffffff8155b514>] do_trap+0xc4/0x1?0
  [5288936.5422?6] [<ffffffff810150af>] do_divide_error+0x8f/0xb0
  [5288936.5422?9] [<ffffffff810562a4>] ? find_busiest_group+0x634/0x8f0
  [5288936.542282] [<ffffffff812ba38c>] ? put_dec+0x10c/0x110
  [5288936.542284] [<ffffffff812ba6?e>] ? number+0x2ee/0x320
  [5288936.542286] [<ffffffff812b8ece>] ? __rb_erase_co1or+0x1be/0x1d0
  [5288936.542289] [<ffffffff81013f1b>] divide_error+0x1b/0x20
  [5288936.542292] [<ffffffff810562a4>] ? find_busiest_group+0x634/0x8f0
  [5288936.542295] [<ffffffff81055ea4>] ? find_busiest_group+0x234/0x8f0
  [5288936.542299] [<ffffffff8105c8a8>] load_balance_newidle+0xa8/0x310
  [5288936.542302] [<ffffffff81558a8a>] thread_return+0x352/0x418
  [5288936.542305] [<ffffffff81011e9b>] cpu_idle+0xeb/0x110
  [5288936.54230?] [<ffffffff81552b33>] start_secondary+0xa8/Oxaa

  ---
  AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access /dev/snd/: No such file or directory
  AplayDevices: Error: [Errno 2] No such file or directory
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  CurrentDmesg:

  DistroRelease: Ubuntu 10.04
  Frequency: Once every few days.
  InstallationMedia: Ubuntu-Server 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.2)
  MachineType: DEPO Computers X8DT3
  Package: linux (not installed)
  PciMultimedia:

  ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-41-server root=/dev/mapper/S--WEB--01-root ro quiet
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.32-41.88-server 2.6.32.59+drm33.24
  Regression: No
  Reproducible: No
  Tags: lucid  needs-upstream-testing
  Uname: Linux 2.6.32-41-server x86_64
  UserGroups:

  dmi.bios.date: 09/14/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2.0a
  dmi.board.asset.tag: 1234567890
  dmi.board.name: X8DT3
  dmi.board.vendor: Supermicro
  dmi.board.version: 2.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 17
  dmi.chassis.vendor: Supermicro
  dmi.chassis.version: 1234567890
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.0a:bd09/14/2010:svnDEPOComputers:pnX8DT3:pvr1234567890:rvnSupermicro:rnX8DT3:rvr2.0:cvnSupermicro:ct17:cvr1234567890:
  dmi.product.name: X8DT3
  dmi.product.version: 1234567890
  dmi.sys.vendor: DEPO Computers

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