linux-kernel - Re: Drives missing at boot

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Message-ID: <7141c88bc8c27f26c2187252c0594318.squirrel@thechecks.ca>
Date:	Mon, 19 Jul 2010 23:14:25 -0400
From:	"Paul Check" <paul@...checks.ca>
To:	"Tejun Heo" <tj@...nel.org>
Cc:	"Mark Knecht" <markknecht@...il.com>,
	"Linux Kernel List" <linux-kernel@...r.kernel.org>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>
Subject: Re: Drives missing at boot

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.

Thanks!

Regards, Paul

> Hello,
>
> On 07/19/2010 09:31 PM, Mark Knecht wrote:
>>    With about 10-12 day of testing, 1-2 boots/day, I've not had a
>> single boot failure since adding the patch. Only twice has it said
>> tries=2. Every other time it's tries=1. The machine seems to work fine
>> either way.
>
> Hmmm... can you please test the attached patch instead?  It seems
> likely that the root cause is not flakiness of SIDPR but incorrect
> locking in libata EH code.
>
> Thanks.
>
> --
> tejun
>


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