[Forum] Articia: Still DMA-problems? | ANN.lu |
Posted on 20-May-2003 11:16 GMT by Senex | 122 comments View flat View list |
From a news-item at VGR.com it appears that the current Articia-northbridges might still have DMA-related problems:
"Mr. S.W. who sends over screen shots of newer AmigaOne 800mhz G4 hardware, has sent over 2 screen shots of the new A1 with G4 running 'amigaone xe/g4 7451 800mhz, excalibur radeon 9000 pro 64mb ddr ram, valueram kvr133x72rc3/256 kingston'. He wants to know '.. if other aone users have that problem as well..', 'it never outputs the same checksum with dma enabled when testing an iso file which is larger than the swap space used'
You can see the Radeon 9000 Pro screen shots here: DMA On & DMA Off."
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Articia: Still DMA-problems? : Comment 35 of 122 | ANN.lu |
Posted by David Scheibler on 20-May-2003 14:40 GMT | In reply to Comment 7 (Jürgen Schober): >What it describes is a known issue with the VIA686B and IDE DMA modes with the
>current Linux drivers
Yes, but only when copying data from one IDE channel to the second under high
PCI bus last (read the c't article I posted to amiga-news.de).
However if you read what this AmigaOne owner wrote and how he made the test
(only one IDE HD, etc.), then it doesn't sound like the bug above. Of course it
might be a different VIA bug which is currently unknown and only happens on
AmigaOne systems (and unfixed Pegasos boards). |
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