Re: ALSA-CVS: Unbreakable "sfxload" process

[Takashi Iwai <tiwai@suse.de>]

At Sat, 15 Feb 2003 00:08:15 +0000 (GMT),
Chris Rankin wrote:
> 
> Hi,
> 
> I have just tried loading a sound-font file into my SB
> Live! and ended up needing to reboot my machine when
> the sfxload program grabbed hold of the CPU and
> wouldn't give it back! Fortunately the machine is SMP,
> and so I was able to shutdown cleanly using the other
> one.
> 
> I think the problem happened because I was trying to
> play a MID file at the time using:
> 
> $ pmidi -p 65:0 <file>
> 
> and didn't break this process before trying to load
> the sound-font. Note also that the sfxload program
> uses /dev/sequencer and so the OSS emulation modules
> are also implicated.
> 
> And the reason I think that this is a kernel problem
> is that the sfxload process survived repeated "kill
> -9" attempts by root... ;-).

hmm, i'm afraid that it's again because of damn kernel memory
allocator...
but, it could be a mutex deadlock of the emu10k1 driver, of course.
i'll take a look tomorrow.


ciao,

Takashi


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