[dm-devel] [PATCH 0/1] Recent breakage of DM RAID
Jonathan Brassow
jbrassow at redhat.com
Sun Nov 24 23:30:42 UTC 2013
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
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