> Summary of what I've managed to rule out so far: >1. this problem does not occur without dm-crypt Please could you test attached patch ? Sorry for another annoying reboot :-) Milan -- mbroz@xxxxxxxxxx From: Milan Broz <mbroz@xxxxxxxxxx> Disable barriers in dm-crypt because of current workqueue processing can reorder requests. This must be addresed later but for now disabling barriers is needed to prevent data corruption. Signed-off-by: Milan Broz <mbroz@xxxxxxxxxx> Index: linux-2.6.20.1/drivers/md/dm-crypt.c =================================================================== --- linux-2.6.20.1.orig/drivers/md/dm-crypt.c 2007-03-23 15:07:11.000000000 +0100 +++ linux-2.6.20.1/drivers/md/dm-crypt.c 2007-03-23 15:09:59.000000000 +0100 @@ -925,6 +925,9 @@ static int crypt_map(struct dm_target *t struct crypt_config *cc = ti->private; struct crypt_io *io; + if (bio_barrier(bio)) + return -EOPNOTSUPP; + io = mempool_alloc(cc->io_pool, GFP_NOIO); io->target = ti; io->base_bio = bio; -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
