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[Chris J Arges <1403282@xxxxxxxxxxxxxxxxxx>]

linux-mm question about this issue: http://www.spinics.net/lists/linux-
mm/msg82078.html

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https://bugs.launchpad.net/bugs/1403282

Title:
  CISCO UCSC-C220-M3S/UCSC-C220-M3S - general protection fault on
  c->freelist broken with Trusty Tahr

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Trusty:
  New

Bug description:
  [6650285.515240] CPU: 15 PID: 27439 Comm: vtep_test.sh Tainted: G        W    3.13.0-34-generic #60-Ubuntu
  [6650285.525760] Hardware name: Cisco Systems Inc UCSC-C220-M3S/UCSC-C220-M3S, BIOS C220M3.1.5.4f.0.111320130449 11/13/2013
  [6650285.537933] task: ffff883fa972c7d0 ti: ffff8830372a6000 task.ti: ffff8830372a6000
  [6650285.546506] RIP: 0010:[<ffffffff811a1e10>]  [<ffffffff811a1e10>] kmem_cache_alloc_trace+0x80/0x1f0
  [6650285.556815] RSP: 0018:ffff8830372a7e80  EFLAGS: 00010286
  [6650285.562990] RAX: 0000000000000000 RBX: ffff883f3a2178c0 RCX: 0000000001bf16c6
  [6650285.571235] RDX: 0000000001bf16c5 RSI: 00000000000080d0 RDI: ffff881fff803500
  [6650285.579477] RBP: ffff8830372a7eb8 R08: 00000000000172a0 R09: ffff881fff803500
  [6650285.587721] R10: ffffffff811c5b6e R11: 0000000000000246 R12: 0006000600000000
  [6650285.595962] R13: 00000000000080d0 R14: 0000000000000280 R15: ffff881fff803500
  [6650285.604211] FS:  00007fe3cf4ec740(0000) GS:ffff88407fce0000(0000) knlGS:0000000000000000
  [6650285.613525] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [6650285.620184] CR2: 0000000001a78608 CR3: 0000003c28958000 CR4: 00000000001427e0
  [6650285.628426] Stack:
  [6650285.630895]  ffff881fff803500 ffffffff811c5b6e ffff883f3a2178c0 ffff8830372a7f60
  [6650285.639493]  0000000000000000 ffff8830372a7f58 0000000000000000 ffff8830372a7ed0
  [6650285.648086]  ffffffff811c5b6e ffff88228205f6c0 ffff8830372a7f10 ffffffff811c6086
  [6650285.656704] Call Trace:
  [6650285.659678]  [<ffffffff811c5b6e>] ? alloc_pipe_info+0x3e/0xb0
  [6650285.666342]  [<ffffffff811c5b6e>] alloc_pipe_info+0x3e/0xb0
  [6650285.672811]  [<ffffffff811c6086>] create_pipe_files+0x46/0x200
  [6650285.679574]  [<ffffffff8109ddf4>] ? vtime_account_user+0x54/0x60
  [6650285.686529]  [<ffffffff811c6274>] __do_pipe_flags+0x34/0xf0
  [6650285.692996]  [<ffffffff811c6440>] SyS_pipe+0x20/0xa0
  [6650285.698791]  [<ffffffff8172c97f>] tracesys+0xe1/0xe6
  [6650285.704581] Code: dc 00 00 49 8b 50 08 4d 8b 20 49 8b 40 10 4d 85 e4 0f 84 14 01 00 00 48 85 c0 0f 84 0b 01 00 00 49 63 47 20 48 8d 4a 01 4d 8b 07 <49> 8b 1c 04 4c 89 e0 65 49 0f c7 08 0f 94 c0 84 c0 74 b9 49 63 
  [6650285.727070] RIP  [<ffffffff811a1e10>] kmem_cache_alloc_trace+0x80/0x1f0
  [6650285.734726]  RSP <ffff8830372a7e80>

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