Re: 2.6.15-mm2

[Jens Axboe <axboe@suse.de>]

On Wed, Jan 11 2006, Jens Axboe wrote:
> It's not too tricky, you just need to correct that function prototype.
> Could you do that? Would be nice to know _exactly_ which libata
> changeset caused this malfunction. But it does of course point at the
> barrier changes for scsi/libata...

You can also try something quicker - use a newer kernel known to exhibit
the problem, and apply this patch on top of that:

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 0302723..720ace4 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -436,6 +436,7 @@ void md_super_write(mddev_t *mddev, mdk_
 	bio->bi_rw = rw;
 
 	atomic_inc(&mddev->pending_writes);
+#if 0
 	if (!test_bit(BarriersNotsupp, &rdev->flags)) {
 		struct bio *rbio;
 		rw |= (1<<BIO_RW_BARRIER);
@@ -444,6 +445,7 @@ void md_super_write(mddev_t *mddev, mdk_
 		rbio->bi_end_io = super_written_barrier;
 		submit_bio(rw, rbio);
 	} else
+#endif
 		submit_bio(rw, bio);
 }
 

-- 
Jens Axboe

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