From: Neil Brown <neilb@suse.de>
To: Anton Voloshin <ashutosh@harekrishna.ru>
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID 6 reshape failed (false message about critical section)
Date: Wed, 5 Sep 2007 13:36:17 +0100 [thread overview]
Message-ID: <18142.41665.719883.549678@notabene.brown> (raw)
In-Reply-To: message from Anton Voloshin on Wednesday September 5
On Wednesday September 5, ashutosh@harekrishna.ru wrote:
>
> Please advise me how should I proceed to resolve this situation and
> save my data if possible (yes, unfortunately I was going to make
> backups in a week but did not had them yet - too bad for me :-( ).
Hi.
thanks for the detailed report.
I can see what the problem is. It will take a little while to figure
out what the "correct" fix it, but a quick fix to get you out of
trouble would be to remove the lines:
if (info->array.utime > __le64_to_cpu(bsb.mtime) + 3600 ||
info->array.utime < __le64_to_cpu(bsb.mtime))
continue; /* time stamp is too bad */
from Grow.c in mdadm (around line 925). This change is definitely
safe for your case, and should get the array assembled and the reshape
restarted. Please let me know how it goes.
NeilBrown
next prev parent reply other threads:[~2007-09-05 12:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-05 10:33 RAID 6 reshape failed (false message about critical section) Anton Voloshin
2007-09-05 12:36 ` Neil Brown [this message]
2007-09-05 18:13 ` Anton Voloshin
2007-09-06 5:12 ` Neil Brown
2007-09-06 20:57 ` RAID 6 reshape failed (false message about critical section) - success report Anton Voloshin
2007-09-08 16:19 ` Bill Davidsen
2007-09-05 18:16 ` RAID 6 reshape failed (false message about critical section) Ashutosh Krishna Das
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