From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: Oops in snd_emu10k1_efx_playback_prepare Date: Fri, 11 Mar 2005 17:26:26 +0100 Message-ID: References: <1110347780.7123.21.camel@mindpipe> <1110490545.14297.9.camel@mindpipe> Mime-Version: 1.0 (generated by SEMI 1.14.5 - "Awara-Onsen") Content-Type: text/plain; charset=US-ASCII In-Reply-To: <1110490545.14297.9.camel@mindpipe> Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Lee Revell Cc: alsa-devel List-Id: alsa-devel@alsa-project.org At Thu, 10 Mar 2005 16:35:45 -0500, Lee Revell wrote: > > On Wed, 2005-03-09 at 18:21 +0100, Takashi Iwai wrote: > > At Wed, 09 Mar 2005 11:54:30 +0100, > > I wrote: > > > > > > At Wed, 09 Mar 2005 10:57:54 +0100, > > > I wrote: > > > > > > > > At Wed, 09 Mar 2005 00:56:19 -0500, > > > > Lee Revell wrote: > > > > > > > > > > I got an Oops again that seems to be caused by something in mu > > > > > multichannel patch. But, I don't really know what to make of it. > > > > > > > > > > ksymoops seems broken for 2.6 kernels, but it was able to disassemble > > > > > the offending code. > > > > > > > > > > Any ideas? > > > > > > > > In snd_emu10k1_pcm_channel_alloc(), epcm->voices[2..NUM_EFX_PLAYBACK] > > > > are not freed correctly. Possibly did this hit? > > > > > > Or maybe I misread the code. Need more coffee now... :) > > > > > > Anyway, snd_emu10k1_pcm_channel_alloc() should return immediately at > > > the second or later call when all voices have been already allocated. > > > > The quick fix patch is below. > > But I'm not sure whether this is really related with the given bug. > > > > Thanks, I'll try this. Unfortunately the bug is very hard to hit (I > have only triggered it twice) and I have no idea how to reproduce it. > It's somwhow associated with restarting JACK. I'll apply this fix to CVS anyway. Please report if you hit the bug again. thanks, Takashi ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click