[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 12 of 122 | ANN.lu |
Posted by Olegil on 20-May-2003 12:02 GMT | In reply to Comment 5 (Rik Sweeney): One window there shows that with DMA, he gets different checksums (means different file content read) each time he calls the checksum function.
Why this means Articia is broken is beyond me. Why can't it be the actual chip that handles DMA transfers, namely the VIA southbridge. Personally, I think this is a Linux driver issue (refer to a quote by Thomas Frieden I posted the other day), but I must admit to not being all that certain. I feel like a newbie some days :-) |
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