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* MD RAID5 hang on make_request
@ 2014-11-23  1:08 Henry Cai
  2014-11-25  2:39 ` NeilBrown
  0 siblings, 1 reply; 2+ messages in thread
From: Henry Cai @ 2014-11-23  1:08 UTC (permalink / raw)
  To: linux-raid

With kernel-3.10, when raid5 is doing resync, unplug one of the
raid5's disk, RAID5 will hang on raid5's make_request function, and
cat /proc/mdstat show the RAID "resync=PENDING", mdadm version is
3.3.2. The platform is arm.

Any similar problems?

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: MD RAID5 hang on make_request
  2014-11-23  1:08 MD RAID5 hang on make_request Henry Cai
@ 2014-11-25  2:39 ` NeilBrown
  0 siblings, 0 replies; 2+ messages in thread
From: NeilBrown @ 2014-11-25  2:39 UTC (permalink / raw)
  To: Henry Cai; +Cc: linux-raid

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On Sun, 23 Nov 2014 09:08:55 +0800 Henry Cai <henryplusplus@gmail.com> wrote:

> With kernel-3.10, when raid5 is doing resync, unplug one of the
> raid5's disk, RAID5 will hang on raid5's make_request function, and
> cat /proc/mdstat show the RAID "resync=PENDING", mdadm version is
> 3.3.2. The platform is arm.
> 
> Any similar problems?

Not that I know of...

Can you test a more recent kernel and see if the problem persists?

Can you provide more specifics than "the make_request function".
e.g. a stack trace (from /proc/PID/stack), or similar.

NeilBrown

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^ permalink raw reply	[flat|nested] 2+ messages in thread

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