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Re: 2.6.22-rc3 hibernate(?) fails totally - regression (xfs on raid6)

from [Duane Griffin] [Permanent Link][Original]
To: "David Greaves" <david@xxxxxxxxxxxx>
Subject: Re: 2.6.22-rc3 hibernate(?) fails totally - regression (xfs on raid6)
From: "Duane Griffin" <duaneg@xxxxxxxxx>
Date: Thu, 7 Jun 2007 14:45:51 +0100
Cc: "Tejun Heo" <htejun@xxxxxxxxx>, "Linus Torvalds" <torvalds@xxxxxxxxxxxxxxxxxxxx>, "Rafael J. Wysocki" <rjw@xxxxxxx>, xfs@xxxxxxxxxxx, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, linux-pm <linux-pm@xxxxxxxxxxxxxx>, "Neil Brown" <neilb@xxxxxxx>
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On 07/06/07, David Greaves <david@xxxxxxxxxxxx> wrote: 
> How hard does the machine freeze?  Can you use sysrq?  If so, please
> dump sysrq-t.
I suspect there is a problem writing to the consoles...

I recompiled (rc4+patch) with sysrq support, suspended, resumed and tried
sysrq-t but got no output.

I *can* change VTs and see the various login prompts, bitmap messages and the
console messages. Caps/Num lock lights work.

Fearing incompetence I tried sysrq-s sysrq-u sysrq-b and got a reboot so sysrq
is OK.


Try sysrq-9 before the sysrq-t. Probably the messages are not being
printed to console with your default output level.

Cheers,
Duane Griffin.

--
"I never could learn to drink that blood and call it wine" - Bob Dylan


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