Re: [BUG 2.6.20-rc3-mm1] raid1 mount blocks for ever
- From: Jens Axboe <jens.axboe@xxxxxxxxxx>
- Date: Mon, 8 Jan 2007 09:52:46 +0100
On Sat, Jan 06 2007, Torsten Kaiser wrote:
On Saturday 06 January 2007 11:02, Jens Axboe wrote:
On Sat, Jan 06 2007, Torsten Kaiser wrote:
On Saturday 06 January 2007 04:59, Andrew Morton wrote:
http://userweb.kernel.org/~akpm/2.6.20-rc3-mm1x.bz2 is basically
2.6.20-rc3-mm1, minus git-block.patch. Can you and Torsten please
test that, see if the hangs go away?
Works for me too.
Torsten, can you test XFS with barriers disabled? I have a feeling that
is where the problem lies.
With your patch from Bug 7775: Same hang detected by NMI watchdog
Does this fix it? Only apply this one, not the patch from 7775.
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index ec40e44..bae57e0 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -1542,7 +1542,7 @@ static inline void queue_sync_plugs(request_queue_t *q)
* If the current process is plugged and has barriers submitted,
* we will livelock if we don't unplug first.
*/
- blk_unplug_current();
+ blk_replug_current_nested();
synchronize_qrcu(&q->qrcu);
}
--
Jens Axboe
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