Date: Wed, 3 Dec 2003 11:37:55 -0500 From: Mathew Kanner <mat@cnd.mcgill.ca> To: Sean Chittenden <sean@chittenden.org> Cc: freebsd-current@FreeBSD.org Subject: Re: please test pcm channel patch Message-ID: <20031203163755.GK54011@cnd.mcgill.ca> In-Reply-To: <20031203091401.GA688@perrin.nxad.com> References: <20031203060710.GJ54011@cnd.mcgill.ca> <20031203090426.GH16547@perrin.nxad.com> <20031203091401.GA688@perrin.nxad.com>
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On Dec 03, Sean Chittenden wrote: > > > Hello All, > > > Please test this PCM patch. It creates seperate locking > > > classes for PCM channels and should prevent the warning where > > > multiple mutexes from the same class are held (as reported > > > recently). I believe this to be a good strategy as it masks fewer > > > errors. > > > > I can confirm that this patch fixes my LOR for pcm(4). -sc > > Bah! I got 30min into playing tunes and picked the same LOR up not > more than 5min after sending this. :( Sorry for the false alarm. > > acquiring duplicate lock of same type: "pcm record channel" > 1st pcm0:record:0 @ /usr/src/sys/dev/sound/pcm/dsp.c:144 > 2nd pcm0:play:0 @ /usr/src/sys/dev/sound/pcm/dsp.c:146 > Stack backtrace: Bah indeed. Gotta think some more. Thanks, --mat -- Any idiot can face a crisis; it is this day-to-day living that wears you out. - Chekhov
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