[Bug 116815] Re: linux-image 2.6.15-28.55 regression from 2.6.15-28.53, crashes under network load

[ake sandgren]

Update

We just got hit by the soft lockup again. Now running 2.6.15-29.60.
Backtrace slightly different though.

[43422009.670000] BUG: soft lockup detected on CPU#0!
[43422009.670000]
[43422009.670000] Pid: 6687, comm:           downloader
[43422009.670000] EIP: 0060:[<c01899ac>] CPU: 0
[43422009.670000] EIP is at posix_locks_deadlock+0x5c/0xc0
[43422009.670000]  EFLAGS: 00000202    Tainted: P       (2.6.15-29-server)

[43422009.670000] EAX: dfeade40 EBX: df8b99c4 ECX: ffffffff EDX: e9398ad8
[43422009.670000] ESI: e7cdd4b8 EDI: d323fca0 EBP: e7cdd570 DS: 007b ES: 007b
[43422009.670000] CR0: 8005003b CR2: 080e5e28 CR3: 1fada980 CR4: 000006f0
[43422009.670000]  [<c0189bb2>] __posix_lock_file+0x82/0x5f0
[43422009.670000]  [<f8a78b00>] linvfs_open+0x0/0xb0 [xfs]
[43422009.670000]  [<c0171376>] __dentry_open+0xe6/0x220
[43422009.670000]  [<c01715f4>] nameidata_to_filp+0x44/0x50
[43422009.670000]  [<c018b980>] fcntl_setlk64+0x2d0/0x370
[43422009.670000]  [<c01716eb>] get_unused_fd+0x6b/0xd0
[43422009.670000]  [<c01717cc>] fd_install+0x2c/0x70
[43422009.670000]  [<c0186a8f>] sys_fcntl64+0x6f/0xe0
[43422009.670000]  [<c0103313>] sysenter_past_esp+0x54/0x75

Same server as above.

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linux-image 2.6.15-28.55 regression from 2.6.15-28.53, crashes under network load
https://bugs.launchpad.net/bugs/116815
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