From mboxrd@z Thu Jan  1 00:00:00 1970
From: NeilBrown <neilb@suse.de>
Subject: Re: MD RAID5 hang on make_request
Date: Tue, 25 Nov 2014 13:39:22 +1100
Message-ID: <20141125133922.7f4a07d0@notabene.brown>
References: <CANH1pmsL4dHvsmkj52=jpWGQmx5B39hY3w480pkJs7ZmKnpptg@mail.gmail.com>
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To: Henry Cai <henryplusplus@gmail.com>
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On Sun, 23 Nov 2014 09:08:55 +0800 Henry Cai <henryplusplus@gmail.com> wrot=
e:

> 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=3DPENDING", mdadm version is
> 3.3.2. The platform is arm.
>=20
> 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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