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Date:      Sat, 28 Sep 2002 17:39:49 -0700
From:      Lars Eggert <larse@ISI.EDU>
To:        current <current@FreeBSD.org>
Subject:   pcm and xl "could sleep with xyz locked"
Message-ID:  <3D964BD5.1010303@isi.edu>
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[-- Attachment #1 --]
Hi,

just compiled a custom KERNEL (-current 9/26), and turned on DIAGNOSTIC 
and WITNESS. I'm seeing a bunch of messages that look like someone'd 
want to know about them:

[larse@nik: ~] cut -d' ' -f6- /var/log/messages | sort | uniq | grep sleep
/usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0" locked from 
/usr/src/sys/dev/sound/pcm/sound.c:134
/usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0:fake" locked 
from /usr/src/sys/dev/sound/pcm/channel.c:677
/usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0:play:0" locked 
from /usr/src/sys/dev/sound/pcm/channel.c:677
/usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0:play:0" locked 
from /usr/src/sys/dev/sound/pcm/dsp.c:673
/usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0:play:0" locked 
from /usr/src/sys/dev/sound/pcm/dsp.c:696
/usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0:play:0" locked 
from /usr/src/sys/dev/sound/pcm/dsp.c:748
/usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0:play:0" locked 
from /usr/src/sys/dev/sound/pcm/dsp.c:794
/usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0:play:0" locked 
from /usr/src/sys/dev/sound/pcm/sound.c:191
/usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0:play:1" locked 
from /usr/src/sys/dev/sound/pcm/channel.c:677
/usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0:play:2" locked 
from /usr/src/sys/dev/sound/pcm/channel.c:677
/usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0:play:3" locked 
from /usr/src/sys/dev/sound/pcm/channel.c:677
/usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0:record:0" locked 
from /usr/src/sys/dev/sound/pcm/channel.c:677
/usr/src/sys/vm/uma_core.c:1307: could sleep with "pcm0:record:1" locked 
from /usr/src/sys/dev/sound/pcm/channel.c:677
/usr/src/sys/vm/uma_core.c:1307: could sleep with "xl0" locked from 
/usr/src/sys/pci/if_xl.c:1264
/usr/src/sys/vm/uma_core.c:1307: could sleep with "xl0" locked from 
/usr/src/sys/pci/if_xl.c:647

Please let me know if there's any other information I can provide.

Thanks,
Lars
-- 
Lars Eggert <larse@isi.edu>           USC Information Sciences Institute

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