Messages in this thread |  | | From | (Zygo Blaxell) | Subject | Re: 2.0.28 breaks gus sound | Date | 17 Jan 1997 01:56:53 -0500 |
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In article <Pine.LNX.3.91.970116093703.526G-100000@voxware>, Hannu Savolainen <hannu@voxware.pp.fi> wrote: >On Wed, 15 Jan 1997 shendrix@escape.widomaker.com wrote: >> I've had some trouble with playing wav files, and since kernel 2.0.18, >> I have not been able to record any sound with my GUS at all. Mixer quit >> working too, or at least doesn't not work as it should. >The GUS driver has not changed at all since early 2.0.x versions (2.0.10 >or so). In fact it has remained almost unchanged since Linux 1.0.x days.
The only problem I've been having with sound (/proc/version: Linux version 2.0.27 (zblaxell@elmer.myrus.com) (gcc version 2.7.2) #1 Mon Dec 2 20:59:57 EST 1996) is the occasional "/dev/dsp: Out of memory".
It seems to be something to do with the 16 megabyte DMA barrier; if I allocate a lot of RAM and release it (say with 'dd obs=124m </dev/zero | head -c1'), I can get sound working again. This applies to the GUS, GUS MAX, and SB16.
The bug makes sound completely unusable on a machine with 128 megs of RAM; it takes about five minutes to swap things out of the "bottom" 16 megs, and less than a second for all that memory to fill up again.
-- Zygo Blaxell. Unix/soft/hardware/firewall/security guru. 10th place, ACM Intl Prog Contest, 1995. Admin Linux+Solaris for food, Tshirts, anime. Pager: 1613 7608572. "I gave up $1000 to avoid working on windoze... *sigh*"-Amy Fong. "smb is a microsoft toy, like a "child" protocol that never matured"-S Boisjoli.
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