public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
* mdraid6 problem post 3.5.0
@ 2012-08-17 22:30 John Drescher
  2012-08-17 22:57 ` John Drescher
  2012-08-17 22:58 ` NeilBrown
  0 siblings, 2 replies; 4+ messages in thread
From: John Drescher @ 2012-08-17 22:30 UTC (permalink / raw)
  To: LKML

For the last few weeks I have been doing some reliability testing on a
 mdraid6 array. One of my test was to physically hot remove a raid
member disk. This worked flawlessly with gentoo-sources-3.5.0 for the
5 or so times I tried it with my 12 disk + 1 spare mdraid6 array.
After pulling a disk a few seconds later the array automatically
rebuilds with a spare and after finishing all data checks out via
btrfs a scrub. However trying this with gentoo-sources-3.5.2 or the
latest kernel.org git sources the machine does not start the rebuild
and any access to /proc/mdstat or and disk access that is not in cache
for that array just leads to an a long (possibly infinite) wait
eventually forcing me to have to use the reset button when the sysrq
key combinations fail to shut down the machine. I do see some kernel
debug message in the console alt-ctrl-f12 but I was unable to save
that to copy.

Is this a known problem? If not it may be possible that I could bisect
this next week to the patch that causes this behavior.

-- 
John M. Drescher

^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-08-21 19:02 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-08-17 22:30 mdraid6 problem post 3.5.0 John Drescher
2012-08-17 22:57 ` John Drescher
2012-08-17 22:58 ` NeilBrown
2012-08-21 19:02   ` John Drescher

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox