Rasmus Skaarup (mfbsd) writes:
>
>
> I've been getting the following messages for quite some time, during
> boot and when using the pcm device:
>
> ...
> /usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0:play:0" locked
[...]
> ...
>
> Is anyone interesting in getting more details?
>
This is a well known problem. It is basically a diagnostic message
telling you that there's a deficiency in the pcm driver.
If you want to fix it permanently I suggest that you go and have a look
at dev/sound/pcm/sound.c:134 and look for a way of invoking UMA without
holding the lock.
A possible workaround, is to try and disable INVARIANTS and WITNESS in
the your kernel conf. and hope it won't turn into a real problem (fx.
panic.)
--
Best Regards,
Michael Landin Hostbaek
FreeBSDCluster.org - an International Community
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