Comment 228 for bug 585765

here's a recent dmesg output from before the crash that may or may not be helpful:

[228817.604006] Call Trace:
[228817.604006] [<c01e35d0>] pagevec_lookup+0x20/0x30
[228817.604006] [<c01e4891>] truncate_inode_pages_range+0x141/0x2d0
[228817.604006] [<c01e4a3f>] truncate_inode_pages+0x1f/0x30
[228817.604006] [<c022ec07>] generic_delete_inode+0xe7/0x110
[228817.604006] [<c022ec85>] generic_drop_inode+0x55/0x70
[228817.604006] [<c022dd4c>] iput+0x4c/0x60
[228817.604006] [<c0225d15>] do_unlinkat+0xd5/0x180
[228817.604006] [<c0225dd5>] sys_unlink+0x15/0x20
[228817.604006] [<c05cc284>] syscall_call+0x7/0xb
[228883.104006] BUG: soft lockup - CPU#0 stuck for 61s! [update-apt-xapi:29635]
[228883.104006] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat usb_storage vboxnetadp vboxnetflt vboxdrv binfmt_misc parport_pc ppdev nfsd nfs lockd fscache nfs_acl auth_rpcgss sunrpc dm_crypt lnbp21 stv0299 nvidia(P) snd_via82xx gameport snd_ac97_codec dvb_ttpci dvb_core ac97_bus snd_pcm saa7146_vv videodev snd_page_alloc snd_mpu401_uart v4l1_compat saa7146 snd_seq_midi snd_rawmidi videobuf_dma_sg videobuf_core shpchp snd_seq_midi_event snd_seq ttpci_eeprom snd_timer snd_seq_device lp usblp k8temp i2c_viapro snd parport soundcore xfs exportfs dm_raid45 xor btrfs zlib_deflate crc32c libcrc32c usbhid hid r8169 amd64_agp pata_via mii agpgart sata_via

Process update-apt-xapi (pid: 29635, ti=ec918000 task=c17a4c20 task.ti=ec918000)
[229079.600007] Stack:
[229079.600007] 0000000e 0000000e f0ccf8d8 00000000 0000000e 00000000 00000000 ec919ea8
[229079.600007] <0> ec919ea0 0000000e 00000000 ec919e80 c01e35d0 ec919ea8 cade52c0 ec919eec
[229079.600007] <0> c01e4891 0000000e 00000000 00000000 00000000 f0ccf8d4 ffffffff 00000000
[229079.600007] Call Trace:
[229079.600007] [<c01e35d0>] ? pagevec_lookup+0x20/0x30
[229079.600007] [<c01e4891>] ? truncate_inode_pages_range+0x141/0x2d0
[229079.600007] [<c01e4a3f>] ? truncate_inode_pages+0x1f/0x30
[229079.600007] [<c022ec07>] ? generic_delete_inode+0xe7/0x110
[229079.600007] [<c022ec85>] ? generic_drop_inode+0x55/0x70
[229079.600007] [<c022dd4c>] ? iput+0x4c/0x60
[229079.600007] [<c0225d15>] ? do_unlinkat+0xd5/0x180
[229079.600007] [<c0225dd5>] ? sys_unlink+0x15/0x20
[229079.600007] [<c05cc284>] ? syscall_call+0x7/0xb
[229079.600007] Code: 08 c7 45 ec 00 00 00 00 c7 45 e8 00 00 00 00 89 55 f0 8d 76 00 8b 4d f0 8b 01 8b 10 85 d2 74 37 f6 c2 01 75 4d 8b 5a 04 8d 7a 04 <85> db 74 eb 8d 73 01 89 d8 f0 0f b1 72 04 39 c3 89 c1 75 54 8b
[229079.600007] Call Trace:
[229079.600007] [<c01e35d0>] pagevec_lookup+0x20/0x30
[229079.600007] [<c01e4891>] truncate_inode_pages_range+0x141/0x2d0
[229079.600007] [<c01e4a3f>] truncate_inode_pages+0x1f/0x30
[229079.600007] [<c022ec07>] generic_delete_inode+0xe7/0x110
[229079.600007] [<c022ec85>] generic_drop_inode+0x55/0x70
[229079.600007] [<c022dd4c>] iput+0x4c/0x60
[229079.600007] [<c0225d15>] do_unlinkat+0xd5/0x180
[229079.600007] [<c0225dd5>] sys_unlink+0x15/0x20
[229079.600007] [<c05cc284>] syscall_call+0x7/0xb