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* lockup with voluntary preempt R0 and VP, KP, etc, disabled
@ 2004-09-03 10:14 Florian Schmidt
  0 siblings, 0 replies; 11+ messages in thread
From: Florian Schmidt @ 2004-09-03 10:14 UTC (permalink / raw)
  To: linux-kernel

oops typo. now it should show up on lkml, too


Hi,

i can experience hard lockups when turning off all the VP stuff via the
/proc interface.

echo 0 > /proc/sys/kernel/hardirq_preemption
echo 0 > /proc/sys/kernel/softirq_preemption
echo 0 > /proc/sys/kernel/voluntary_preemption
echo 0 > /proc/sys/kernel/kernel_preemption
echo 0 > /proc/sys/kernel/trace_enabled

then do some audio work with jackd and the machine locks up in the next
3 or 4 minutes. How can i help in debugging this? I know only very
little about core dumps, etc, so it would be cool if anyone of you guys
can reproduce the lockup. Or tell me how to proceed..

flo


^ permalink raw reply	[flat|nested] 11+ messages in thread
[parent not found: <20040903120957.00665413@mango.fruits.de>]

end of thread, other threads:[~2004-09-03 19:11 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2004-09-03 10:14 lockup with voluntary preempt R0 and VP, KP, etc, disabled Florian Schmidt
     [not found] <20040903120957.00665413@mango.fruits.de>
     [not found] ` <20040903100946.GA22819@elte.hu>
     [not found]   ` <20040903123139.565c806b@mango.fruits.de>
2004-09-03 10:32     ` Ingo Molnar
2004-09-03 11:59       ` Florian Schmidt
2004-09-03 11:55         ` Ingo Molnar
2004-09-03 13:01           ` Florian Schmidt
2004-09-03 12:04         ` Florian Schmidt
2004-09-03 12:08           ` Florian Schmidt
2004-09-03 18:28             ` Lee Revell
2004-09-03 18:54               ` Florian Schmidt
2004-09-03 18:52                 ` Lee Revell
2004-09-03 19:06                 ` K.R. Foley

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