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    SubjectRe: ISP1760 driver crashes
    On Wed, 19 Nov 2008, Jens Axboe wrote:

    > > --- usb-2.6.orig/drivers/scsi/scsi_lib.c
    > > +++ usb-2.6/drivers/scsi/scsi_lib.c
    > > @@ -1684,7 +1684,7 @@ static void scsi_request_fn(struct reque
    > > u64 scsi_calculate_bounce_limit(struct Scsi_Host *shost)
    > > {
    > > struct device *host_dev;
    > > - u64 bounce_limit = 0xffffffff;
    > > + u64 bounce_limit = BLK_BOUNCE_HIGH;
    > >
    > > if (shost->unchecked_isa_dma)
    > > return BLK_BOUNCE_ISA;
    > >
    >
    > The best solution is probably to either provide a "doesn't do highmem"
    > in the scsi host template, or provide an appropriate DMA mask for the
    > pci device to indicate it through that setting instead.

    The DMA mask is currently set to NULL. Is that not appropriate for a
    device that can't do DMA? If not, then what would be appropriate?

    Also, is the patch above not correct?

    Alan Stern



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