From: Jonathan Brassow <jbrassow@redhat.com>
To: jbrassow@redhat.com, neilb@suse.de, linux-raid@vger.kernel.org,
dm-devel@redhat.com
Subject: [PATCH 0/1] Recent breakage of DM RAID
Date: Sun, 24 Nov 2013 17:30:42 -0600 [thread overview]
Message-ID: <1385335843-14021-1-git-send-email-jbrassow@redhat.com> (raw)
There have been two commits that have broken DM RAID:
1) 773ca82 (v3.12-rc1) raid5: make release_stripe lockless
2) 566c09c raid5: relieve lock contention in get_active_stripe()
I've provided a patch for the first, but I don't have a patch ready for
the second yet. Since 3.12 is alreay out, I figured I better send the
patch for the first problem now.
Simply creating a RAID 4/5/6 device via device-mapper (or LVM) is sufficent
to cause the hang to manifest.
Jonathan Brassow (1):
MD/DM RAID: Fix hang due to recent RAID5 locking changes
drivers/md/dm-raid.c | 1 -
drivers/md/md.c | 5 ++++-
2 files changed, 4 insertions(+), 2 deletions(-)
--
1.7.7.6
next reply other threads:[~2013-11-24 23:30 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-24 23:30 Jonathan Brassow [this message]
2013-11-24 23:30 ` [PATCH 1/1] MD/DM RAID: Fix hang due to recent RAID5 locking changes Jonathan Brassow
2013-11-25 0:03 ` NeilBrown
2013-11-25 14:20 ` Brassow Jonathan
2013-11-25 19:08 ` Brassow Jonathan
2013-11-26 5:27 ` NeilBrown
2013-11-26 14:32 ` Brassow Jonathan
2013-11-26 22:34 ` Brassow Jonathan
2013-11-27 3:12 ` NeilBrown
2013-11-27 10:02 ` Shaohua Li
2013-11-27 16:00 ` Brassow Jonathan
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