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Date:      Sat, 1 Dec 2001 01:08:08 +0100
From:      Bernhard Valenti <bernhard.valenti@gmx.net>
To:        freebsd-current@freebsd.org
Subject:   lock order reversal with pcm..
Message-ID:  <20011201010808.7e0efef2.bernhard.valenti@gmx.net>

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hi,

i'm running -current as of november 10th. when i'm playing sound over the
dsp i sometimes get:

lock order reversal
 1st 0xc19aea00 pcm0 @
/usr/src/sys/modules/sound/pcm/../../../dev/sound/pcm/sound.c:132
 2nd 0xc19ae8c0 pcm0:play:0 @
/usr/src/sys/modules/sound/pcm/../../../dev/sound/pcm/sound.c:189

and the sound cracks/stops playing for the fraction of a second. seems
like it happens more often during disk or network activity ( i mount
/usr/ports via nfs, and when i build a port it happens all the time). the
soundcard is a sblive. i searched the archive for this problem, but didnt
find anything, so i thought i report it. would be cool if someone has a
fix for that.

regards,
bernhard

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