From: Dan Williams <dan.j.williams@intel.com>
To: Jon Nelson <jnelson-linux-raid@jamponi.net>
Cc: Neil Brown <neilb@suse.de>, LinuxRaid <linux-raid@vger.kernel.org>
Subject: Re: raid1 recovery: reads and writes
Date: Tue, 16 Dec 2008 14:04:58 -0700 [thread overview]
Message-ID: <494817FA.5040108@intel.com> (raw)
In-Reply-To: <cccedfc60812151840g8febe5ayfda29ae609bca9df@mail.gmail.com>
Jon Nelson wrote:
> ..
>
>> Yes it is hard to guess what is happening here; however, should not
>> the following commit go to -stable?
>>
>> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=56ac36d722d0d27c03599d1245ac0ab59e474e5c
>
> Is it possible this commit is (partially) responsible for what I was
> seeing? Under what conditions would it trigger?
I don't think this commit is responsible, it's a fix for a case where
the kernel was asked to do a repair but a recovery is pending.
This commit addressed a bug in external-metadata support when adding a
spare disk via sysfs. It would be fairly difficult to trigger this in
the non-external-metadata case. It would require a check/repair
request to come in immediately after the disk was (re-)added, but before
the kernel started the resync.
--
Dan
prev parent reply other threads:[~2008-12-16 21:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-15 13:45 raid1 recovery: reads and writes Jon Nelson
2008-12-15 21:09 ` Neil Brown
2008-12-16 0:54 ` Dan Williams
2008-12-16 2:40 ` Jon Nelson
2008-12-16 21:04 ` Dan Williams [this message]
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