From: Bruce Dubbs <bruce.dubbs@gmail.com>
To: Jes Sorensen <Jes.Sorensen@redhat.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: mdadm regression tests, slight progress
Date: Thu, 18 Feb 2016 14:20:18 -0600 [thread overview]
Message-ID: <56C62782.7020101@gmail.com> (raw)
In-Reply-To: <wrfjoabdygec.fsf@redhat.com>
Jes Sorensen wrote:
>> What I did was add a couple of 'cat /proc/mdstat' commands where the
>> script was failing. At Point 1 above, I got:
>>
>> ++ cat /proc/mdstat
>> Personalities : [raid1] [raid10] [raid6] [raid5] [raid4] [multipath]
>> md127 : inactive md0[0](S)
>> 19904 blocks
>>
>> md0 : active raid1 loop1[1] loop0[0]
>> 20000 blocks super non-persistent [2/2] [UU]
>> [==>..................] resync = 12.5% (2688/20000)
>> finish=0.1min speed=2688K/sec
>>
>>
>> The line with resync looked suspicious so at that point I added a
>> 'sleep 10' command. The test now passes.
>>
>> The full log is at
>> http://anduin.linuxfromscratch.org/~bdubbs/files/mdadm-test1.log
>>
>> Does anyone know what is going on to need this sleep in order for this
>> test to pass?
>
> It sounds to like the thing hangs if you try to stop the array before
> the resync completes. That could be a race in the kernel code.
Thanks. I'll try a different kernel version and report back. The above
was tested with kernel version 4.2.0.
-- Bruce
prev parent reply other threads:[~2016-02-18 20:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-17 22:48 mdadm regression tests, slight progress Bruce Dubbs
2016-02-18 19:20 ` Jes Sorensen
2016-02-18 20:20 ` Bruce Dubbs [this message]
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