Hi Andrew,

On 10/28/2010 11:37 PM, Andrew Clunis wrote:

> Hello Eloy!
>
> It's just happened again, but, alas, once again no visible oopses or
> similar problems in the kernel message ring buffer.

I just happened to me again -- I lost the Thinkpad's trackpoint after 
coming back from resume. I did find a kernel oops in my dmesg's output, 
though (included below).

I suspended the laptop before coming to work, and resumed it after 
putting it in a port replicator at work. Does this happen to you without 
a port replicator or a port replicator is involved?

The machine is usable after the kernel oops but the kseriod kernel 
thread is gone. To bring everything back to normal the machine needs to 
be rebooted.

Cheers,

Eloy Paris.-

---------------------------------------------

[719295.914307] BUG: unable to handle kernel NULL pointer dereference at 
(null)
[719295.914312] IP: [<c05c7aaa>] __mutex_lock_slowpath+0x9a/0x140
[719295.914321] *pde = 7d827067
[719295.914324] Oops: 0002 [#1] SMP
[719295.914327] last sysfs file: 
/sys/devices/pci0000:00/0000:00:1a.7/usb1/idVendor
[719295.914330] Modules linked in: usb_storage snd_usb_audio 
snd_usbmidi_lib pwc videodev v4l1_compat usbhid hid binfmt_misc 
vboxnetadp vboxnetflt vboxdrv parport_pc ppdev lp parport nvidia(P) arc4 
snd_hda_codec_analog iwlagn snd_hda_intel snd_hda_codec thinkpad_acpi 
iwlcore snd_hwdep snd_pcm snd_seq_midi joydev snd_rawmidi 
snd_seq_midi_event pcmcia snd_seq mac80211 snd_timer snd_seq_device 
psmouse snd yenta_socket pcmcia_rsrc tpm_tis soundcore cfg80211 tpm 
led_class snd_page_alloc pcmcia_core serio_raw tpm_bios nvram coretemp 
sha256_generic aes_i586 aes_generic dm_crypt ahci libahci e1000e 
intel_agp video output agpgart
[719295.914379]
[719295.914383] Pid: 30, comm: kseriod Tainted: P 
2.6.35-22-generic #35-Ubuntu 7663B15/7663B15
[719295.914386] EIP: 0060:[<c05c7aaa>] EFLAGS: 00010246 CPU: 0
[719295.914389] EIP is at __mutex_lock_slowpath+0x9a/0x140
[719295.914392] EAX: 00000000 EBX: f70ae474 ECX: f70ae47c EDX: f71e9f24
[719295.914394] ESI: f70ae478 EDI: f70ae484 EBP: f71e9f3c ESP: f71e9f18
[719295.914397]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[719295.914400] Process kseriod (pid: 30, ti=f71e8000 task=f715e580 
task.ti=f71e8000)
[719295.914402] Stack:
[719295.914403]  f368ca88 f715e580 f70ae47c f70ae47c 00000000 c1d562c0 
f70ae474 f70ae474
[719295.914410] <0> f58161ec f71e9f4c c05c79f5 f70ae400 f70ae474 
f71e9f60 c0490fe2 f10773e0
[719295.914417] <0> f10773ec f58161ec f71e9f94 c04915b8 c012ce18 
f71e9f80 c05c8c0f f71e9f80
[719295.914425] Call Trace:
[719295.914429]  [<c05c79f5>] ? mutex_lock+0x25/0x40
[719295.914434]  [<c0490fe2>] ? serio_reconnect_port+0x22/0x80
[719295.914438]  [<c04915b8>] ? serio_handle_event+0x1c8/0x250
[719295.914443]  [<c012ce18>] ? default_spin_lock_flags+0x8/0x10
[719295.914446]  [<c05c8c0f>] ? _raw_spin_lock_irqsave+0x2f/0x50
[719295.914449]  [<c0491665>] ? serio_thread+0x25/0xc0
[719295.914454]  [<c0165e10>] ? autoremove_wake_function+0x0/0x50
[719295.914457]  [<c0491640>] ? serio_thread+0x0/0xc0
[719295.914460]  [<c01659e4>] ? kthread+0x74/0x80
[719295.914463]  [<c0165970>] ? kthread+0x0/0x80
[719295.914467]  [<c010363e>] ? kernel_thread_helper+0x6/0x10
[719295.914469] Code: 83 79 18 63 7f b3 8d 76 00 8d 73 04 89 f0 e8 3e 11 
00 00 8d 53 08 89 55 e4 8d 55 e8 8b 43 0c 89 53 0c 8b 4d e4 89 45 ec 89 
4d e8 <89> 10 8b 45 e0 ba ff ff ff ff 89 45 f0 89 d0 87 03 83 f8 01 74
[719295.914508] EIP: [<c05c7aaa>] __mutex_lock_slowpath+0x9a/0x140 
SS:ESP 0068:f71e9f18
[719295.914513] CR2: 0000000000000000
[719295.914527] ---[ end trace c4bea30e4a35a3d6 ]---

-- 
Mouse pointer doesn't work after resume from suspend on Thinkpad T60p 
(intermittent)
https://bugs.launchpad.net/bugs/659219
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