Friday, June 26, 2009, 6:21:43 PM, Alan wrote: > The source you posted has MWDMA undefined which makes me > wonder if it matches the binary your dmesg is from. > It's also possible some of the other fixes in that code are relevant to MWDMA - certainly > your driver looks sane. you are right. I'm working with multiple sources from different sites and missed the fact the original driver ide-jasper.c published at uclinux.org has BMDMA undefined. Dmegs output was produced using a slightly modified version of the file that has BMDMA defined, but there are no other changes in it that would explain unexpected DMA interrupt mystery, it should be one of the patches done to ide and cdrom subsystem. Here is an updated patch, could you please check it? I don't see anything unusual except the "never disable DMA" logic in ide_dma.c. -- Best regards, Andrei mailto:andrei.martynov@xxxxxx
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