similar i2c last sysfile issue, from console:

<Dec/06 10:06 am>ipp019 login: [773057.264011] general protection fault: 0000 [#1] SMP 
<Dec/06 10:06 am>[773057.266032] last sysfs file: /sys/class/i2c-adapter/i2c-0/name
<Dec/06 10:06 am>[773057.266032] CPU 0 
<Dec/06 10:06 am>[773057.266032] Modules linked in: hwmon_vid autofs4 i2c_i801 i2c_core iTCO_wdt e1000e tg3 libphy e1000 xfs dm_snapshot dm_mirror dm_region_hash dm_log aacraid 3w_9xxx 3w_xxxx atp870u arcmsr aic7xxx scsi_wait_scan [last unloaded: w83793]
<Dec/06 10:06 am>[773057.266032] Pid: 1524, comm: rpciod/0 Tainted: G   M    W  2.6.28-rc7-00105-gfeaf384 #4
<Dec/06 10:06 am>[773057.266032] RIP: 0010:[<ffffffff80589612>]  [<ffffffff80589612>] xprt_autoclose+0x19/0x4c
<Dec/06 10:06 am>[773057.266032] RSP: 0018:ffff88063cdbbe60  EFLAGS: 00010246
<Dec/06 10:06 am>[773057.266032] RAX: 666e6f632e007374 RBX: ffff880237766578 RCX: 0000000000000000
<Dec/06 10:06 am>[773057.266032] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880237766000
<Dec/06 10:06 am>[773057.266032] RBP: ffff88033d399e00 R08: 0000000000000001 R09: 0000000000000000
<Dec/06 10:06 am>[773057.266032] R10: 0000000000000000 R11: 0000000000000001 R12: ffff880237766578

<Dec/06 10:06 am>[773057.266032] R13: ffff880237766000 R14: ffffffff808b85a0 R15: 0000000000000000
<Dec/06 10:06 am>[773057.266032] FS:  0000000000000000(0000) GS:ffffffff80872d80(0000) knlGS:0000000000000000
<Dec/06 10:06 am>[773057.266032] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
<Dec/06 10:06 am>[773057.266032] CR2: 00007f42d9a91000 CR3: 00000001746ce000 CR4: 00000000000006e0
<Dec/06 10:06 am>[773057.266032] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
<Dec/06 10:06 am>[773057.266032] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
<Dec/06 10:06 am>[773057.266032] Process rpciod/0 (pid: 1524, threadinfo ffff88063cdba000, task ffff88063c825b20)
<Dec/06 10:06 am>[773057.266032] Stack:
<Dec/06 10:06 am>[773057.266032]  ffff88063cdbbe90 ffff880237766578 ffffffff805895f9 ffffffff80248973
<Dec/06 10:06 am>[773057.266032]  ffffffff8024891d 0000000000000046 0000000000000000 0000000000000000
<Dec/06 10:06 am>[773057.266032]  0000000000000000 ffff88033d399e00 ffff88033e457bf0 ffff88033d399e00
<Dec/06 10:06 am>[773057.266032] Call Trace:
<Dec/06 10:06 am>[773057.266032]  [<ffffffff805895f9>] ? xprt_autoclose+0x0/0x4c
<Dec/06 10:06 am>[773057.266032]  [<ffffffff80248973>] ? run_workqueue+0xed/0x1ed
<Dec/06 10:06 am>[773057.266032]  [<ffffffff8024891d>] ? run_workqueue+0x97/0x1ed
<Dec/06 10:06 am>[773057.266032]  [<ffffffff80249511>] ? worker_thread+0xd8/0xe3
<Dec/06 10:06 am>[773057.266032]  [<ffffffff8024bfda>] ? autoremove_wake_function+0x0/0x2e
<Dec/06 10:06 am>[773057.266032]  [<ffffffff80249439>] ? worker_thread+0x0/0xe3
<Dec/06 10:06 am>[773057.266032]  [<ffffffff8024becc>] ? kthread+0x47/0x73
<Dec/06 10:06 am>[773057.266032]  [<ffffffff80234852>] ? schedule_tail+0x27/0x5f
<Dec/06 10:06 am>[773057.266032]  [<ffffffff8020cd19>] ? child_rip+0xa/0x11
<Dec/06 10:06 am>[773057.266032]  [<ffffffff8024be85>] ? kthread+0x0/0x73

<Dec/06 10:06 am>[773057.266032]  [<ffffffff8020cd0f>] ? child_rip+0x0/0x11
<Dec/06 10:06 am>[773057.266032] Code: 89 f7 e8 59 dd 02 00 89 d8 5b 5d 41 5c 41 5d 41 5e c3 41 55 4c 8d af 88 fa ff ff 41 54 53 48 8b 87 90 fa ff ff 48 89 fb 4c 89 ef <ff> 50 60 f0 80 63 d0 f7 4c 8d a3 98 00 00 00 4c 89 e7 e8 43 de 
<Dec/06 10:06 am>[773057.266032] RIP  [<ffffffff80589612>] xprt_autoclose+0x19/0x4c
<Dec/06 10:06 am>[773057.266032]  RSP <ffff88063cdbbe60>
<Dec/06 10:06 am>[773057.533343] ---[ end trace 6da5bcfcd46c90a0 ]---
<Dec/06 10:07 am>[773166.382789] lockd: cannot monitor ipp052
<Dec/06 10:08 am>[773226.386119] lockd: cannot monitor ipp052
<Dec/06 10:09 am>[773286.389447] lockd: cannot unmonitor ippc55
<Dec/06 10:10 am>[773346.392710] lockd: cannot unmonitor ippc37
<Dec/06 10:11 am>[773406.396045] lockd: cannot unmonitor ippc44
<Dec/06 10:12 am>[773466.399429] lockd: cannot monitor ipp046
<Dec/06 10:13 am>[773526.402699] lockd: cannot monitor ipp052
<Dec/06 10:14 am>[773586.406085] lockd: cannot unmonitor ippc47
<Dec/06 10:15 am>[773629.199697] Machine check events logged
<Dec/06 10:15 am>[773646.409411] lockd: cannot monitor ipp046
<Dec/06 10:16 am>[773706.412734] lockd: cannot monitor ipp046
<Dec/06 10:17 am>[773766.416064] lockd: cannot monitor ipp052
<Dec/06 10:18 am>[773826.419392] lockd: cannot monitor ipp052
<Dec/06 10:19 am>[773886.422738] lockd: cannot monitor ipp052
<Dec/06 10:20 am>[773946.426057] lockd: cannot monitor ipp046
<Dec/06 10:21 am>[774006.429383] lockd: cannot monitor ipp046
<Dec/06 10:22 am>[774066.432643] lockd: cannot monitor ipp046