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From: Florian Schmidt <mista.tapas@gmx.net>
To: linux-kernel@vger.kernel.org
Subject: lockup with voluntary preempt R0 and VP, KP, etc, disabled
Date: Fri, 3 Sep 2004 12:14:05 +0200	[thread overview]
Message-ID: <20040903121405.3d32beec@mango.fruits.de> (raw)

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


             reply	other threads:[~2004-09-03 10:04 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-09-03 10:14 Florian Schmidt [this message]
     [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     ` lockup with voluntary preempt R0 and VP, KP, etc, disabled 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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