Date: Thu, 4 Dec 2003 15:02:08 -0800 From: Sean Chittenden <sean@chittenden.org> To: Mathew Kanner <mat@cnd.mcgill.ca> Cc: freebsd-current@FreeBSD.org Subject: Re: please test pcm channel patch Message-ID: <20031204230208.GS16547@perrin.nxad.com> In-Reply-To: <20031203165719.GL54011@cnd.mcgill.ca> References: <20031203060710.GJ54011@cnd.mcgill.ca> <20031203090426.GH16547@perrin.nxad.com> <20031203091401.GA688@perrin.nxad.com> <20031203165719.GL54011@cnd.mcgill.ca>
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> > > > 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: > > Sean, > I found the mistake, I assumed that a variable was initialized > when it wasn't. Sorry for asking you to test a stupid patch before. > Please try this one. Haven't had a LOR in the last 24hrs, I think you got a winner here. -sc -- Sean Chittenden
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