From: Ingo Molnar <mingo@elte.hu>
To: Mark_H_Johnson@raytheon.com
Cc: Bill Huey <bhuey@lnxw.com>, Adam Heath <doogie@debian.org>,
"K.R. Foley" <kr@cybsft.com>,
linux-kernel@vger.kernel.org,
Florian Schmidt <mista.tapas@gmx.net>,
Fernando Pablo Lopez-Lezcano <nando@ccrma.Stanford.EDU>,
Lee Revell <rlrevell@joe-job.com>,
Rui Nuno Capela <rncbc@rncbc.org>,
Thomas Gleixner <tglx@linutronix.de>,
Michal Schmidt <xschmi00@stud.feec.vutbr.cz>
Subject: Re: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U8
Date: Thu, 21 Oct 2004 16:22:15 +0200 [thread overview]
Message-ID: <20041021142215.GA3972@elte.hu> (raw)
In-Reply-To: <20041021141439.GB2875@elte.hu>
* Ingo Molnar <mingo@elte.hu> wrote:
> the soundcard IRQ trace you got is interesting:
>
> BUG: sleeping function called from invalid context X(2948) at kernel/mutex.c:25 Oct 21 07:53:02 localhost kernel: in_atomic():1 [00010000], irqs_disabled():0
> [<c011f06a>] __might_sleep+0xca/0xe0 (12)
> [<c01387e6>] _mutex_lock+0x26/0x50 (36)
> [<e0a549b6>] snd_audiopci_interrupt+0x46/0xf0 [snd_ens1371] (20)
> [<c01436f6>] handle_IRQ_event+0x46/0x80 (24)
> [<c0143837>] __do_IRQ+0x107/0x160 (32)
> [<c010a299>] do_IRQ+0x59/0x90 (36)
> [<c0108510>] common_interrupt+0x18/0x20 (20)
> preempt count: 00010001
>
> do you have PREEMPT_REALTIME enabled? The above trace is a direct
> interrupt - only the timer interrupt is allowed to execute directly in
> the PREEMPT_REALTIME model - things break badly if it happens for any
> other interrupt (such as the soundcard IRQ).
this also seems to be the major cause of the other problems in your log:
kernel preempting off a hardirq context and then confusing other kernel
code. It's surprising that it booted up at all! Now how did the
soundcard IRQ end up being non-threaded?
Ingo
next prev parent reply other threads:[~2004-10-21 14:27 UTC|newest]
Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-21 13:02 [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U8 Mark_H_Johnson
2004-10-21 14:14 ` Ingo Molnar
2004-10-21 14:22 ` Ingo Molnar [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-10-21 14:51 Mark_H_Johnson
2004-10-21 15:06 ` Ingo Molnar
2004-10-20 14:49 Mark_H_Johnson
2004-10-12 19:54 [patch] VP-2.6.9-rc4-mm1-T8 Ingo Molnar
2004-10-13 6:15 ` [patch] VP-2.6.9-rc4-mm1-T9 Ingo Molnar
2004-10-14 0:24 ` [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U0 Ingo Molnar
2004-10-14 14:31 ` [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U1 Ingo Molnar
2004-10-14 23:42 ` [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U2 Ingo Molnar
2004-10-15 10:26 ` [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U3 Ingo Molnar
2004-10-16 15:33 ` [patch] Real-Time Preemption, -VP-2.6.9-rc4-mm1-U4 Ingo Molnar
2004-10-18 14:50 ` [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U5 Ingo Molnar
2004-10-19 12:46 ` [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U6 Ingo Molnar
2004-10-19 18:00 ` [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U7 Ingo Molnar
2004-10-20 9:45 ` [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U8 Ingo Molnar
2004-10-20 10:04 ` Ingo Molnar
2004-10-20 10:32 ` Rui Nuno Capela
2004-10-20 10:40 ` Ingo Molnar
2004-10-20 11:31 ` Rui Nuno Capela
2004-10-20 11:43 ` Ingo Molnar
2004-10-20 12:40 ` Rui Nuno Capela
2004-10-20 10:38 ` Michal Schmidt
2004-10-20 10:56 ` Ingo Molnar
2004-10-20 11:01 ` Michal Schmidt
2004-10-20 12:04 ` Ingo Molnar
2004-10-20 21:34 ` Michal Schmidt
2004-10-21 8:12 ` Ingo Molnar
2004-10-21 8:18 ` Ingo Molnar
2004-10-21 8:20 ` Ingo Molnar
2004-10-20 12:50 ` Florian Schmidt
2004-10-20 12:55 ` Ingo Molnar
2004-10-20 13:25 ` Florian Schmidt
2004-10-20 13:24 ` Ingo Molnar
2004-10-20 14:24 ` Florian Schmidt
2004-10-20 14:18 ` Ingo Molnar
2004-10-20 14:53 ` Florian Schmidt
2004-10-20 15:08 ` Florian Schmidt
2004-10-20 15:37 ` Lee Revell
2004-10-20 12:52 ` Lorenzo Allegrucci
2004-10-20 12:56 ` Ingo Molnar
2004-10-20 16:27 ` Adam Heath
2004-10-21 16:59 ` Adam Heath
2004-10-20 17:49 ` Alexander Batyrshin
2004-10-20 19:02 ` Adam Heath
2004-10-20 22:35 ` Daniel Walker
2004-10-22 13:19 ` Ingo Molnar
2004-10-22 13:48 ` Ingo Molnar
2004-10-20 21:19 ` Esben Nielsen
2004-10-21 0:32 ` Fernando Pablo Lopez-Lezcano
2004-10-21 9:12 ` Rui Nuno Capela
2004-10-21 9:16 ` Thomas Gleixner
2004-10-21 9:35 ` Christoph Hellwig
2004-10-21 9:44 ` Ingo Molnar
2004-10-21 9:47 ` Christoph Hellwig
2004-10-21 10:03 ` Ingo Molnar
2004-10-21 9:47 ` Thomas Gleixner
2004-10-21 9:53 ` Jens Axboe
2004-10-21 9:54 ` Thomas Gleixner
2004-10-21 10:11 ` Jens Axboe
2004-10-21 10:11 ` Thomas Gleixner
2004-10-21 10:42 ` Ingo Molnar
2004-10-21 11:59 ` john cooper
2004-10-21 14:16 ` Esben Nielsen
2004-10-21 14:52 ` john cooper
2004-10-21 15:47 ` Eugeny S. Mints
2004-10-21 16:49 ` john cooper
2004-10-21 17:33 ` Scott Wood
2004-10-21 18:09 ` john cooper
2004-10-21 18:47 ` Scott Wood
2004-10-21 20:18 ` john cooper
2004-10-21 21:12 ` Scott Wood
2004-10-21 22:15 ` john cooper
2004-10-21 22:30 ` Scott Wood
2004-10-21 22:55 ` john cooper
2004-10-21 21:01 ` Esben Nielsen
2004-10-21 21:52 ` Scott Wood
2004-10-22 0:46 ` john cooper
2004-10-21 18:10 ` Eugeny S. Mints
2004-10-21 18:29 ` Scott Wood
2004-10-21 17:54 ` Eugeny S. Mints
2004-10-21 17:41 ` Scott Wood
2004-10-21 11:11 ` Jens Axboe
2004-10-21 11:18 ` Thomas Gleixner
2004-10-21 10:18 ` Ingo Molnar
2004-10-21 10:34 ` Jens Axboe
2004-10-21 19:58 ` Bill Huey
2004-10-21 20:14 ` Jens Axboe
2004-10-21 20:24 ` Bill Huey
2004-10-21 20:33 ` Jens Axboe
2004-10-21 20:38 ` Bill Huey
2004-10-21 20:43 ` Thomas Gleixner
2004-10-21 23:06 ` Bill Huey
2004-10-22 6:24 ` Jens Axboe
2004-10-21 20:49 ` Bill Huey
2004-10-22 6:19 ` Jens Axboe
2004-10-22 7:29 ` Ingo Molnar
2004-10-22 8:01 ` Jens Axboe
2004-10-22 8:13 ` Ingo Molnar
2004-10-22 8:50 ` Bill Huey
2004-10-22 8:59 ` Jens Axboe
2004-10-22 9:06 ` Bill Huey
2004-10-22 9:09 ` Bill Huey
2004-10-22 9:20 ` Jens Axboe
2004-10-22 9:24 ` Bill Huey
2004-10-22 9:31 ` Jens Axboe
2004-10-22 9:17 ` Jens Axboe
2004-10-22 9:23 ` Thomas Gleixner
2004-10-22 9:00 ` Ingo Molnar
2004-10-22 10:21 ` Christoph Hellwig
2004-10-21 22:42 ` Timothy Miller
2004-10-21 23:01 ` Thomas Gleixner
2004-10-21 9:18 ` Ingo Molnar
2004-10-21 10:26 ` Rui Nuno Capela
2004-10-21 11:20 ` Rui Nuno Capela
2004-10-21 9:55 ` Thomas Gleixner
2004-10-21 13:03 ` Rui Nuno Capela
2004-10-21 13:41 ` Ingo Molnar
2004-10-21 13:53 ` Ingo Molnar
2004-10-22 10:15 ` Rui Nuno Capela
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