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    SubjectRe: SCSI tape crashes (was Re: BUG() in asm/pci.h:142 with 2.4.13)

    David,

    Is this waht's causing the earlier bug I reported in 2.4.10? If so
    where is this patch so I can see if it fixes the problem.

    Thanks,

    Jeff


    On Thu, Oct 25, 2001 at 05:25:41PM -0700, David S. Miller wrote:
    > From: Jens Axboe <axboe@suse.de>
    > Date: Thu, 25 Oct 2001 19:32:48 +0200
    >
    > On Thu, Oct 25 2001, Christian Hammers wrote:
    > > This patch did not prevent the crash. Again immediately after rewinding the
    > > tape when it began to write. I'll try now the 2.4.12-ac6... and it works.
    >
    > Ok, someone else is meddling with the scatterlist then. I'll take a 2nd
    > look.
    >
    > Can people try out this patch? I believe this will fix the bug.
    >
    > --- drivers/scsi/st.c.~1~ Sun Oct 21 02:47:53 2001
    > +++ drivers/scsi/st.c Thu Oct 25 17:23:45 2001
    > @@ -3233,6 +3233,7 @@
    > break;
    > }
    > }
    > + tb->sg[0].page = NULL;
    > if (tb->sg[segs].address == NULL) {
    > kfree(tb);
    > tb = NULL;
    > @@ -3264,6 +3265,7 @@
    > tb = NULL;
    > break;
    > }
    > + tb->sg[segs].page = NULL;
    > tb->sg[segs].length = b_size;
    > got += b_size;
    > segs++;
    > @@ -3337,6 +3339,7 @@
    > normalize_buffer(STbuffer);
    > return FALSE;
    > }
    > + STbuffer->sg[segs].page = NULL;
    > STbuffer->sg[segs].length = b_size;
    > STbuffer->sg_segs += 1;
    > got += b_size;
    > -
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