pcm & exclusive sleep mutex with Oct19 CURRENT

[Paolo Pisati]

from my dmesg:
[snip]
pcm0: <ESS Technology Allegro-1> port 0xb800-0xb8ff irq 5 at device 1.0 on pci2
pcm0: failed to enable memory mapping!
pcm0: <ESS Technology ES1988 AC97 Codec>
malloc() of "64" with the following non-sleepable locks held:
exclusive sleep mutex pcm0:mixer (pcm mixer) r = 0 (0xc2d34540) locked @ /usr/src/sys/dev/sound/pcm/mixer.c:322
malloc() of "16" with the following non-sleepable locks held:
exclusive sleep mutex pcm0:mixer (pcm mixer) r = 0 (0xc2d34540) locked @ /usr/src/sys/dev/sound/pcm/mixer.c:322
malloc() of "16" with the following non-sleepable locks held:
exclusive sleep mutex pcm0:mixer (pcm mixer) r = 0 (0xc2d34540) locked @ /usr/src/sys/dev/sound/pcm/mixer.c:322
malloc() of "16" with the following non-sleepable locks held:
exclusive sleep mutex pcm0:mixer (pcm mixer) r = 0 (0xc2d34540) locked @ /usr/src/sys/dev/sound/pcm/mixer.c:322
malloc() of "64" with the following non-sleepable locks held:
exclusive sleep mutex pcm0:mixer (pcm mixer) r = 0 (0xc2d34540) locked @ /usr/src/sys/dev/sound/pcm/mixer.c:322
malloc() of "16" with the following non-sleepable locks held:
exclusive sleep mutex pcm0:mixer (pcm mixer) r = 0 (0xc2d34540) locked @ /usr/src/sys/dev/sound/pcm/mixer.c:322
malloc() of "16" with the following non-sleepable locks held:
exclusive sleep mutex pcm0:mixer (pcm mixer) r = 0 (0xc2d34540) locked @ /usr/src/sys/dev/sound/pcm/mixer.c:322
malloc() of "16" with the following non-sleepable locks held:
exclusive sleep mutex pcm0:mixer (pcm mixer) r = 0 (0xc2d34540) locked @ /usr/src/sys/dev/sound/pcm/mixer.c:322
[snip]
and later today i got even this:

acquiring duplicate lock of same type: "pcm channel"
 1st pcm0:record:0 @ /usr/src/sys/dev/sound/pcm/sound.c:195
 2nd pcm0:play:0 @ /usr/src/sys/dev/sound/pcm/sound.c:195
Stack backtrace:

with no backtrace at all.

[flag at southcross flag]$ uname -a
FreeBSD southcross.skynet.org 5.1-CURRENT FreeBSD 5.1-CURRENT #0: Sun Oct 19 12:07:09 CEST 2003     root at southcross.skynet.org:/usr/obj/usr/src/sys/SOUTHCROSS  i386
[flag at southcross flag]$ 

-- 
Paolo

Italian FreeBSD User Group: http://www.gufi.org