[lkml]   [2007]   [Jun]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [BUG] ide dma_timer_expiry, then hard lockup
    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 -> ...

    Indeed... but the thing is we don't know what's asserted in this case --
    remember, it's reading the status register that locks everything up...

    > Alan

    MBR, Sergei
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2007-06-19 16:25    [W:0.029 / U:13.416 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site