linux-kernel - strange SysRq problem

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Message-Id: <200802140102.14252.hpj@urpla.net>
Date:	Thu, 14 Feb 2008 01:02:14 +0100
From:	Hans-Peter Jansen <hpj@...la.net>
To:	linux-kernel@...r.kernel.org
Subject: strange SysRq problem

Hi,

I'm suffering from a strange SysRq problem:

syslog shows haphazardly "SysRq : HELP" lines, while I definitely didn't 
triggered them, neither via (PS/2) keyboard, nor via /proc/sysrq-trigger.
This is accompanied with stalls of about 15-60 secs. 

Here's an example:

Feb 14 00:16:11 xrated kernel: SysRq : HELP : loglevel0-8 reBoot Crashdump 
tErm Full kIll saK showMem Nice powerOff showPc show-all-timers(Q) unRaw 
Sync showTasks Unmount shoW-blocked-tasks 
Feb 14 00:32:45 xrated kernel: SysRq : HELP : loglevel0-8 reBoot Crashdump 
tErm Full kIll saK showMem Nice powerOff showPc show-all-timers(Q) unRaw 
Sync showTasks Unmount shoW-blocked-tasks 
Feb 14 00:32:57 xrated kernel: SysRq : HELP : loglevel0-8 reBoot Crashdump 
tErm Full kIll saK showMem Nice powerOff showPc show-all-timers(Q) unRaw 
Sync showTasks Unmount shoW-blocked-tasks 
Feb 14 00:32:57 xrated kernel: SysRq : HELP : loglevel0-8 reBoot Crashdump 
tErm Full kIll saK showMem Nice powerOff showPc show-all-timers(Q) unRaw 
Sync showTasks Unmount shoW-blocked-tasks 
Feb 14 00:33:04 xrated kernel: SysRq : HELP : loglevel0-8 reBoot Crashdump 
tErm Full kIll saK showMem Nice powerOff showPc show-all-timers(Q) unRaw 
Sync showTasks Unmount shoW-blocked-tasks 
Feb 14 00:33:24 xrated kernel: SysRq : HELP : loglevel0-8 reBoot Crashdump 
tErm Full kIll saK showMem Nice powerOff showPc show-all-timers(Q) unRaw 
Sync showTasks Unmount shoW-blocked-tasks 
Feb 14 00:33:24 xrated kernel: SysRq : HELP : loglevel0-8 reBoot Crashdump 
tErm Full kIll saK showMem Nice powerOff showPc show-all-timers(Q) unRaw 
Sync showTasks Unmount shoW-blocked-tasks 
Feb 14 00:33:24 xrated kernel: SysRq : HELP : loglevel0-8 reBoot Crashdump 
tErm Full kIll saK showMem Nice powerOff showPc show-all-timers(Q) unRaw 
Sync showTasks Unmount shoW-blocked-tasks 
Feb 14 00:33:24 xrated kernel: SysRq : HELP : loglevel0-8 reBoot Crashdump 
tErm Full kIll saK showMem Nice powerOff showPc show-all-timers(Q) unRaw 
Sync showTasks Unmount shoW-blocked-tasks 
Feb 14 00:33:33 xrated kernel: SysRq : HELP : loglevel0-8 reBoot Crashdump 
tErm Full kIll saK showMem Nice powerOff showPc show-all-timers(Q) unRaw 
Sync showTasks Unmount shoW-blocked-tasks 

Anybody suffered from similar behavior out there, and tracked it down?

TIA,
Pete
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