Date: Fri, 24 Mar 2000 11:26:37 -0800 From: Ken Marx <kmarx@bigshed.com> To: Conrad Sabatier <conrads@home.com> Cc: Randall Hopper <aa8vb@ipass.net>, freebsd-multimedia@FreeBSD.ORG Subject: Re: Lost interrupts in snd0 ? Message-ID: <38DBC16D.1FB8D8A4@bigshed.com> References: <XFMail.000323185041.conrads@home.com>
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Hi, So, I just cvschlup'd down src-sys for 3.4-RELEASE and 3.4-STABLE, and did diff's on i386/isa/sound dirs: 1. 3.4-RELEASE vs.3.4-STABLE: only changes for pc98 2. 3.2-RELEASE vs 3.4-RELEASE: a two line change to sb16_dsp.c for 8-bit dma. Neither seems too promising in explaining the problems I've been seeing. Of course there could be changes to other parts of the kernel, such as dma stuff. If anyone has a dir(s) they'd like to see diff'd, I'll be happy to do it. Also, details of above diff's available upon request. k. -- Ken Marx, kmarx@bigshed.com We need to put that item on the action register if we're to leverage our critical resources and move back to a clear leadership position in the exposure. - http://cgi.bigshed.com/~kmarx/cgi-bin/speak.cgi Conrad Sabatier wrote: > > On 23-Mar-00 Randall Hopper wrote: > > Ken Marx: > > |I'm seeing intermitent long (> 10 sec) pauses in > > |the snd (voxware) driver, that look to be possibly due > > |to lost interrupts. > > | > > |This is on 3.2 and 3.4 hosts, AMD K6-III and K7, respectively. > > |Both use a Creative AWE64 isa soundcard. > > ... > > |Just to make matters more confusing, a friend in the UK is also > > |running 3.2 on an AMDK6-III, same soundcard, and can't reproduce > > |this problem. > > | > > |Can anyone please help? I'm pretty week on how the sound stuff > > |is supposed to work, and am kind of running low on ideas? > > > > So it's not just me! I too was running well with my Creative SB32 > > (mostly the same as your card) with 3.2R and my AMD K6-III. Upgrading > > to 3.4R, I also seem to see more hangs on close. > > > > 2) I also see much longer skips with mtv (the same mtv executable and > > same MPEG streams) than I did with 3.4R. It behaves like some bad > > changes were made to the SNDCTL_DSP_GETOSPACE or related buffer-query > > calls. > > Same here. Only in my most recent 3.4-STABLE build have I ever gotten > the infamous "DMA timeout - IRQ/DRQ config error?" message with my AWE 64. > > Also still seeing some chop, after reverting back from 4.0, but with a new > cvsup of 3.4-STABLE. Apparently, the changes to the sound drivers were > fairly recent, as my previous STABLE kernel, built around Mar 8 or so, had > no such problems. > > -- > Conrad Sabatier > http://members.home.net/conrads/ > ICQ# 1147270 -- Ken Marx, kmarx@bigshed.com We need to put that item on the action register if we're to leverage our critical resources and move back to a clear leadership position in the exposure. - http://cgi.bigshed.com/~kmarx/cgi-bin/speak.cgi To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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