linux-kernel - Re: kernel panic when sending MIDI sequencer events

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Date:	Thu, 27 Jul 2006 19:21:25 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	"Nathan Becker" <nathanbecker@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: kernel panic when sending MIDI sequencer events

At Tue, 25 Jul 2006 17:39:44 -0700,
Nathan Becker wrote:
> 
> Thanks for the quick reply.  The error message is "Kernel panic - not
> syncing: Aiee, killing interrupt handler!"
> 
> To get the crash, I used Rosegarden to try to play a MIDI file.
> Sometimes the crash happens upon loading a file and sometimes it
> happens after I try to play it.
> 
> I tried disabling CONFIG_SND_RTCTIMER and I think that the kernel
> panic has stopped.  I have tested it several times and rebooted a
> couple of times and there was no crash.  I'm not 100% certain though
> because this problem has been slightly intermitent, although usually
> easily reproducible.

So, this looks like a bug around rtc and ALSA timer.  Or, possibly
HPET.

> I'm pasting my kernel config below.  Could this just be a problem with
> my settings? Should I try to hook up a serial console to get more
> details out of the panic?  When I have some free time I could try that
> if it might help you.

Thanks.

Could you try once without HPET support, just to be sure?
Anyway, it'd be appreciated if you can get the full log at panic.


Takashi
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