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Re: [Xen-devel] [Patch] avoid deadlock during console output

To: Juergen Gross <juergen.gross@xxxxxxxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [Patch] avoid deadlock during console output
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Fri, 06 Mar 2009 09:11:57 +0000
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On 06/03/2009 08:46, "Juergen Gross" <juergen.gross@xxxxxxxxxxxxxxxxxxx>
wrote:

> to dump the schedulers run-queues. On my 4-core machine I need only about 5
> calls to stop the machine.
> 
> The attached patch solves the problem by avoiding sending the event in
> critical paths.

Ugly. Instead we can defer the dom0 notification to a tasklet. I'll make a
patch for that myself.

 Thanks,
 Keir



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