snd-ioctl32 and hard lockups

snd-ioctl32 and hard lockups

[Michael Collard]

After modprobing the snd-ioctl32 module from Alsa 1.0.7, then next
attempt to play _any_ audio causes the machine to hard lock, not even
the SysRq commands do anything. I've had no luck with a response form
alsa-users or #alsa on freenode, hence emailing the devel list.

1.0.7 compiled, not from kernel.
Custom x86_64 2.6.8.1 kernel
Vibra16 card (es1371 driver)

Alsa sound works quite OK in every other respect. Any hints on how to
diagnose/fix the problem appreciated.

Regards
Michael Collard



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Re: snd-ioctl32 and hard lockups

[Takashi Iwai]

At Wed, 08 Dec 2004 22:16:45 +0800,
Michael Collard wrote:
> 
> After modprobing the snd-ioctl32 module from Alsa 1.0.7, then next
> attempt to play _any_ audio causes the machine to hard lock, not even
> the SysRq commands do anything. I've had no luck with a response form
> alsa-users or #alsa on freenode, hence emailing the devel list.
> 
> 1.0.7 compiled, not from kernel.
> Custom x86_64 2.6.8.1 kernel
> Vibra16 card (es1371 driver)
> 
> Alsa sound works quite OK in every other respect. Any hints on how to
> diagnose/fix the problem appreciated.

Try the CVS version.  The ioctl32 wrapper was rewritten in large
parts.


Takashi


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Re: snd-ioctl32 and hard lockups

[Michael Collard]

On Wed, 2004-12-08 at 16:15 +0100, Takashi Iwai wrote:
> At Wed, 08 Dec 2004 22:16:45 +0800,
> Michael Collard wrote:
> > 
> > After modprobing the snd-ioctl32 module from Alsa 1.0.7, then next
> > attempt to play _any_ audio causes the machine to hard lock, not even
> > the SysRq commands do anything. I've had no luck with a response form
> > alsa-users or #alsa on freenode, hence emailing the devel list.
> > 
> > 1.0.7 compiled, not from kernel.
> > Custom x86_64 2.6.8.1 kernel
> > Vibra16 card (es1371 driver)
> > 
> > Alsa sound works quite OK in every other respect. Any hints on how to
> > diagnose/fix the problem appreciated.
> 
> Try the CVS version.  The ioctl32 wrapper was rewritten in large
> parts.

Thank you, the CVS version functions correctly :)

Wish I'd done that before.

Regards
Michael Collard




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