I keep on getting debug messages like this, both at startup
and right before any sound plays:

Jun 14 23:44:38 teqnix kernel: /usr/src/sys/vm/uma_core.c:1327: could
sleep with
 "pcm0:play:0" locked from /usr/src/sys/dev/sound/pcm/dsp.c:713
heyeh, Jun 14 23:44:38 teqnix kernel: /usr/src/sys/vm/uma_core.c:1327: could
sleep with
 "pcm0:play:0" locked from /usr/src/sys/dev/sound/pcm/dsp.c:713
Jun 14 23:44:38 teqnix kernel: /usr/src/sys/vm/uma_core.c:1327: could
sleep with
 "pcm0:play:0" locked from /usr/src/sys/dev/sound/pcm/dsp.c:713
Jun 14 23:44:38 teqnix kernel: /usr/se.c:1327: could sleep with
"pcm0:play:0" lo
cked from /usr/src/sys/dev/sound/pcm/dsp.c:713
Jun 14 23:44:38 teqnix kernel: /usr/src/sys/vm/uma_core.c:1327: could
sleep with
 "pcm0:play:0" locked from /usr/src/sys/dev/sound/pcm/dsp.c:713
Jun 14 23:44:38 teqnix kernel: /usr/src/sys/vm/uma_core.c:1327: could
sleep with
 "pcm0:play:0" locked from /usr/src/sys/dev/sound/pcm/dsp.c:713

To avoid this, I was wondering if I could change CHN_LOCK() to use
spin locks instead of sleeping mutex locks? Of course I would
make it so that mtx_init has RECURS.. would this work?

- Evan

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