At Tue, 8 Jun 2004 03:39:52 +1200 (NZST),
Keith Duthie wrote:
>
> The following patch (effectively a reversion of a change between alsa
> 0.9.4 and 0.9.5) fixes a problem whereby an APM suspend causes the
> program which is using the PCM device to enter the uninterruptible sleep
> state on resume and thus causes the sound device to be unusable.
>
> --- linux-2.6.5/sound/isa/cs423x/cs4231_lib.c~ Tue Jun 8 03:24:49 2004
> +++ linux-2.6.5/sound/isa/cs423x/cs4231_lib.c Tue Jun 8 03:24:52 2004
> @@ -1402,7 +1402,7 @@
> switch (rqst) {
> case PM_SUSPEND:
> if (chip->suspend) {
> - snd_pcm_suspend_all(chip->pcm);
> + // snd_pcm_suspend_all(chip->pcm);
> (*chip->suspend)(chip);
> }
> break;
Could you check whether the recent kernel works without this patch?
There was a mutex deadlock in the suspend code, and I guess it hit
you...
Takashi
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