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Re: [Xen-users] Domain Crash and Xend can't restart

To: "Petersson, Mats" <Mats.Petersson@xxxxxxx>, Xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] Domain Crash and Xend can't restart
From: Mike Lemoine <mlemoine@xxxxxxxxxxx>
Date: Fri, 27 Oct 2006 11:13:26 -0600
Delivery-date: Fri, 27 Oct 2006 10:14:09 -0700
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Thread-topic: [Xen-users] Domain Crash and Xend can't restart
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Happened again.  While the problem VM is useless, connecting to the console
of an idle VM I had on the machine (for exactly this purpose) had this in
the buffer:

BUG: sleeping function called from invalid context at kernel/workqueue.c:270
in_atomic():0, irqs_disabled():1

Call Trace: <ffffffff80294742>{flush_workqueue+26}
<ffffffff80370914>{blkif_free+67}
       <ffffffff80371135>{blkfront_resume+37}
<ffffffff8036d62c>{xenbus_exists+33}
       <ffffffff8029767d>{keventd_create_kthread+0}
<ffffffff8036e724>{resume_dev+88}
       <ffffffff8036a265>{__do_suspend+0} <ffffffff8036e6cc>{resume_dev+0}
       <ffffffff80363f23>{bus_for_each_dev+67}
<ffffffff8036a265>{__do_suspend+0}
       <ffffffff8036e63e>{xenbus_resume+37}
<ffffffff8036a7ce>{__do_suspend+1385}
       <ffffffff80282af9>{__wake_up_common+62}
<ffffffff8029767d>{keventd_create_kthread+0}
       <ffffffff8029767d>{keventd_create_kthread+0}
<ffffffff80237f3f>{kthread+212}
       <ffffffff8026721a>{child_rip+8}
<ffffffff8029767d>{keventd_create_kthread+0}
       <ffffffff80237e6b>{kthread+0} <ffffffff80267212>{child_rip+0}



On 10/26/06 10:37 AM, "Petersson, Mats" <Mats.Petersson@xxxxxxx> wrote:

>  
> 
>> -----Original Message-----
>> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
>> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of
>> Mike Lemoine
>> Sent: 26 October 2006 17:16
>> To: Xen-users
>> Subject: [Xen-users] Domain Crash and Xend can't restart
>> 
>> I have a single VM (of 11) that has a recurring problem.
>> This image has
>> moved from machine to machine, with the problem following it.
>>  This image
>> has been rebuilt from scratch, and the problem recurred.  It
>> would appear
>> that there is something in the behaviour of this VM which
>> causes it to crash
>> and causes Xend to become unhappy.
> 
> Do you have a log from an attempt to boot it once it's been "broken"? I
> think that would be useful.
> 
> I would also suggest that you try the latest stable Xen (3.0.3), because
> there has been quite a few changes since August...
> 
> [Snip logs etc]
> 
> --
> Mats
> 
> 


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