TX chipset and bus mastering DMA problem

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#54266

From: Justin
Date: Sat, 15 Nov 1997 00:00

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i bought a new CPU(K6-200) and m/b(AOPEN AP5T-3) about a week ago, and
through the week i ran linux perfectly, setting the drive up with the command
"hdparm -X34 -d1 /dev/hda"
yesterday, i upgraded my kernel from 2.0.30 to 2.0.31, and took the 
hdparm line out of my rc.local, worked fine for the last couple of
hours (in DMA mode), but i was playing an mp3, which crashed, and
at the same time my harddrive stopped reading (i was downloading at
the time), and a message popped up in minicom saying 
"DriveReady SeekComplete DataRequest
 hda: disabled DMA
 id0: reset: success"
then the download started up again.
when i try to play an mp3, mpg123 says 
"Sound error: Couldn't allocate DMA buffer
 Can't open /dev/dsp"
i set the DMA buffer to maximum size when i built my kernel (48K?)
anyone got any idea what's going on? i've loaded the hdparm line and
it went back into DMA mode and seems to be working fine again, but
mpg123 still won't play.
thanks for your help

-- 
        Justin Brymer  Email: brymer@[arcadia/yallara].cs.rmit.edu.au
    Justin's Pearl Jam Mp3+ homepage http://minyos.its.rmit.edu.au/~brymer

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From: brymer@arcadia.cs.rmit.edu.au (Justin)
Subject: TX chipset and bus mastering DMA problem
Date: 1997/11/15
Message-ID: <64khdv$84r$1@goanna.cs.rmit.edu.au>
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Organization: Comp Sci, RMIT University, Melbourne, Australia.
Newsgroups: aus.computers.linux