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    SubjectRe: [BUG] ide dma_timer_expiry, then hard lockup
    On Tue, 19 Jun 2007 18:10:04 +0400
    Sergei Shtylyov <sshtylyov@ru.mvista.com> wrote:

    > Hello.
    >
    > Alan Cox wrote:
    > >>I can prepare a patch, but only with a lot of guidance. I can test
    > >>& debug, I'm highly motivated just right now ...
    >
    > > If you've got a nice repeatable problem please try using the libata
    > > driver. That handles the error paths differently and doesn't try a FIFO
    > > drain which might matter in this case I guess.
    >
    > FIFO drain for DMA commands?

    Welcome to the old IDE layer which I am so glad I left behind 8)

    ide_ata_error will try and do a PIO flush regardless of the command type
    if DRQ_STAT is asserted. See ide_dma_intr -> ide_error -> ...

    Alan
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