linux-kernel - Re: Kernel crash on 2.6.31.x (kcryptd: page allocation failure..)

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Message-ID: <hbd9v8$7rf$1@ultimate100.geggus.net>
Date:	Sat, 17 Oct 2009 20:38:00 +0000 (UTC)
From:	Sven Geggus <lists@...hsschwanzdomain.de>
To:	linux-kernel@...r.kernel.org
Subject: Re: Kernel crash on 2.6.31.x (kcryptd: page allocation failure..)

Frans Pop <elendil@...net.nl> wrote:

> What is the _exact_ command sequence you use to reproduce it? I already 
> have a testcase, but a second test case, or a simpler one, may be useful.

Not a particular easy testcase.

This is what I did:

On the crashing machine with the dm-encrypted xfs volume:
ionice -c 3 socat TCP4-LISTEN:5555 - >backup.tar

On the source machine:
tar cv dir |socat - TCP4:targetmachine:5555

You will certainly not need to use tar.

socat /dev/zero TCP4:targetmachine:5555 should work as well.

I don't know if TCP traffic is really needed probably it is.

Regards

Sven

-- 
"We don't know the OS that God uses, but the Vatican uses Linux"
                               (Sister Judith Zoebelein, Vatican Webmaster)

/me is giggls@...net, http://sven.gegg.us/ on the Web
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