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[Launchpad Bug Tracker <1197703@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/1197703

Title:
  aoe kernel module BUG if the value is greater than 15 in aoe slot

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  in /dev/ehterd/eX.Y if Y is greater than 15, kernel  module cannot be
  unloaded and AoE service hangs.

  [ 1917.724163] BUG: unable to handle kernel NULL pointer dereference at 00000000000003f0
  [ 1917.724412] IP: [<ffffffff81310a8d>] blk_cleanup_queue+0x1d/0x100
  [ 1917.724565] PGD 3ba07067 PUD 3c9df067 PMD 0 
  [ 1917.724681] Oops: 0000 [#1] SMP 
  [ 1917.724790] CPU 0 
  [ 1917.724884] Modules linked in: aoe(-) psmouse microcode snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore serio_raw virtio_balloon snd_page_alloc mac_hid i2c_piix4 lp parport floppy
  [ 1917.725329] 
  [ 1917.725407] Pid: 1002, comm: modprobe Not tainted 3.5.0-34-generic #55~precise1-Ubuntu Bochs Bochs
  [ 1917.725638] RIP: 0010:[<ffffffff81310a8d>]  [<ffffffff81310a8d>] blk_cleanup_queue+0x1d/0x100
  [ 1917.725782] RSP: 0018:ffff88003a1a7e28  EFLAGS: 00010286
  [ 1917.725906] RAX: ffff88003d22b601 RBX: ffff88003c71a200 RCX: 0000000000006b4d
  [ 1917.726038] RDX: 0000000000006b4c RSI: ffff88003d22b6c0 RDI: 0000000000000000
  [ 1917.726174] RBP: ffff88003a1a7e48 R08: 0000000000016710 R09: ffffea0000f48ac0
  [ 1917.726301] R10: ffffffffa00ca3cb R11: 0000000000000000 R12: ffff88003c71a2e0
  [ 1917.726438] R13: ffff88003c71a2e0 R14: 0000000000000000 R15: ffff88003c71a320
  [ 1917.726579] FS:  00007fabcfc34700(0000) GS:ffff88003fc00000(0000) knlGS:0000000000000000
  [ 1917.726712] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
  [ 1917.726830] CR2: 00000000000003f0 CR3: 000000003b9e9000 CR4: 00000000000006f0
  [ 1917.726975] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  [ 1917.727131] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
  [ 1917.727271] Process modprobe (pid: 1002, threadinfo ffff88003a1a6000, task ffff88003a0bdc00)
  [ 1917.727413] Stack:
  [ 1917.727502]  ffff88003c71a200 ffff88003c71a2e0 ffff88003c71a2e0 0000000000000000
  [ 1917.727652]  ffff88003a1a7e98 ffffffffa00ca43d ffff88003c71a2c0 ffff88003c71a358
  [ 1917.727801]  000000000143b080 ffff88003c71a200 ffff88003c71a2c0 0000000000000286
  [ 1917.727938] Call Trace:
  [ 1917.728023]  [<ffffffffa00ca43d>] aoedev_freedev+0x12d/0x150 [aoe]
  [ 1917.728023]  [<ffffffffa00caa25>] aoedev_exit+0x65/0x80 [aoe]
  [ 1917.728023]  [<ffffffffa00cab83>] aoe_exit+0x33/0x40 [aoe]
  [ 1917.728023]  [<ffffffff810b72dc>] sys_delete_module+0x18c/0x250
  [ 1917.728023]  [<ffffffff816a06e5>] ? do_async_page_fault+0x35/0x90
  [ 1917.728023]  [<ffffffff816a5669>] system_call_fastpath+0x16/0x1b
  [ 1917.728023] Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89 5d e0 4c 89 65 e8 4c 89 6d f0 4c 89 75 f8 0f 1f 44 00 00 <4c> 8b a7 f0 03 00 00 4c 8d af 28 07 00 00 48 89 fb 4c 89 ef e8 
  [ 1917.728023] RIP  [<ffffffff81310a8d>] blk_cleanup_queue+0x1d/0x100
  [ 1917.728023]  RSP <ffff88003a1a7e28>
  [ 1917.728023] CR2: 00000000000003f0
  [ 1917.741115] ---[ end trace a1e794390b46d1ca ]---

  please update aoe driver
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.0.1-0ubuntu17.3
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info: Error: [Errno 2] No such file or directory
  Card0.Amixer.values: Error: [Errno 2] No such file or directory
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=e12b7ab7-218e-4c2d-8d48-fd669c7d11f3
  InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64+mac (20130214)
  IwConfig: Error: [Errno 2] No such file or directory
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: Bochs Bochs
  MarkForUpload: True
  Package: linux (not installed)
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-34-generic root=UUID=158bb570-9333-4927-8645-ea360c6c5694 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.5.0-34.55~precise1-generic 3.5.7.13
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-34-generic N/A
   linux-backports-modules-3.5.0-34-generic  N/A
   linux-firmware                            1.79.4
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  precise
  Uname: Linux 3.5.0-34-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  dmi.bios.date: 01/01/2007
  dmi.bios.vendor: Bochs
  dmi.bios.version: Bochs
  dmi.chassis.type: 1
  dmi.chassis.vendor: Bochs
  dmi.modalias: dmi:bvnBochs:bvrBochs:bd01/01/2007:svnBochs:pnBochs:pvr:cvnBochs:ct1:cvr:
  dmi.product.name: Bochs
  dmi.sys.vendor: Bochs

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