linux-kernel - Re: Drives missing at boot

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Date:	Wed, 21 Jul 2010 13:54:20 -0700
From:	Mark Knecht <markknecht@...il.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	Paul Check <paul@...checks.ca>,
	Linux Kernel List <linux-kernel@...r.kernel.org>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>
Subject: Re: Drives missing at boot

On Tue, Jul 20, 2010 at 7:14 AM, Tejun Heo <tj@...nel.org> wrote:
> Helo,
>
> On 07/20/2010 05:14 AM, Paul Check wrote:
>> Hey Tejun: I guess this is the same patch that you sent me to fix my issue
>> with missing drives.  Good news: I've been through about 10 reboots now
>> and no problems.  Based on my prior experience, I'd say with the old
>> setup, 10 clean boots in a row was probably less than a 1% event.  So, it
>> seems that this has fixed my problem.
>
> Yeap, it's the same one.  I'm forwarding the patch upstream now but,
> Mark, please let me know the test result.
>
> Thanks.
>
> --
> tejun
>

Tejun,
   Looks like I had a failure today. First one in weeks and only the
3rd or 4th boot with this newer patch file. One of the two drives
making a RAID0 wasn't found so /dev/md11 (constructed from /dev/sdd
and /dev/sde) couldn't be started. I did a cold reboot and the drive
was found.

   If it matters, and it probably doesn't, the failure came on a boot
which had a scheduled fsck to do of /dev/md5 - my main / drive. I
don't see how that would make a difference but I figure why leave the
info out. That's why the times are so much larger in the dmesg file.
(I think)

   dmesg attached. I patched the Gentoo kernel if it makes a
difference, same as I did with the earlier patch.

mark@...table ~ $ uname -a
Linux c2stable 2.6.34-gentoo-r2 #1 SMP PREEMPT Sun Jul 18 14:09:48 PDT
2010 x86_64 Intel(R) Core(TM) i7 CPU X 980 @ 3.33GHz GenuineIntel
GNU/Linux
mark@...table ~ $

Sorry,
Mark

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