On Mon, Oct 20, 2003 at 07:15:19PM +0200, Paolo Pisati wrote: > > 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 _at_ /usr/src/sys/dev/sound/pcm/mixer.c:322 Unfortunately none of the sound developers have been interested in looking at the locking problems in the code. > acquiring duplicate lock of same type: "pcm channel" > 1st pcm0:record:0 _at_ /usr/src/sys/dev/sound/pcm/sound.c:195 > 2nd pcm0:play:0 _at_ /usr/src/sys/dev/sound/pcm/sound.c:195 > Stack backtrace: > > with no backtrace at all. FWIW, the backtrace would have been reported on the system console. Kris
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