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Re: [Xen-devel] Re: Freeze with 2.6.32.19 and xen-4.0.1rc5, acpi problem

To: Mark Brown <mbrown@xxxxxxxxxxxxxxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: Freeze with 2.6.32.19 and xen-4.0.1rc5, acpi problems
From: Keir Fraser <keir@xxxxxxx>
Date: Mon, 06 Dec 2010 05:04:28 -0800
Cc:
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Thread-topic: [Xen-devel] Re: Freeze with 2.6.32.19 and xen-4.0.1rc5, acpi problems
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Can you try building and installing the hypervisor (xen.gz) from the tip of
http://xenbits.xen.org/staging/xen-4.0-testing.hg ?

There is a fix in there to work around an erratum in Intel deep-sleep (C6
state) handling. Caused interrupt acknowledgements to be lost, interrupts
thus get blocked, system hangs/pauses, ...

 -- Keir

On 04/12/2010 22:13, "Mark Brown" <mbrown@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

> 
> I am facing similar issues on the Intel DQ45CB board.
> 
> Xen version 4.0.1 (Debian 4.0.1-1) (waldi@xxxxxxxxxx) (gcc version 4.4.5
> 20100824 (prerelease) (Debian 4.4.4-11) ) Fri Sep  3 15:38:12 UTC 2010
> DomU  2.6.32-5-xen-amd64
> 
> For the HVM I get hangs on the CPU (limited it to one core) if intense IO is
> performed. The Problem does not appear to exist in the RAW kernel (without
> XEN). 
> 
> I could not check the interrupts on the hang (XEN console 'i') it crashes.
> 
> After disabling the HPET in the BIOS I progressed to the current stage - no
> hard crashes but prolonged 'hangs' on the SYSTEM - freezes, no ping
> response, but comes back after some time.
> 
> Ideas, Suggestions?



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