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Re: [Xen-devel] Unresolved - qemu-dm crash under high dom0 disk load

To: "dan.magenheimer@xxxxxxxxxx" <dan.magenheimer@xxxxxxxxxx>, Randy McAnally <rsm@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Unresolved - qemu-dm crash under high dom0 disk load
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Wed, 30 Jan 2008 17:40:22 +0000
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Thread-topic: [Xen-devel] Unresolved - qemu-dm crash under high dom0 disk load
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Sure. I'm confident to slip this one in without doing another rc.

 -- Keir

On 30/1/08 17:37, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx> wrote:

> If this solves the problem, it would be nice to slide it into 3.1.3 final.
> 
>> -----Original Message-----
>> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
>> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx]On Behalf Of Keir Fraser
>> Sent: Wednesday, January 30, 2008 9:33 AM
>> To: Randy McAnally; xen-devel@xxxxxxxxxxxxxxxxxxx
>> Subject: Re: [Xen-devel] Unresolved - qemu-dm crash under
>> high dom0 disk
>> load
>> 
>> 
>> Please try the attached patch.
>> 
>>  -- Keir
>> 
>> On 30/1/08 16:09, "Randy McAnally" <rsm@xxxxxxxxxxxxx> wrote:
>> 
>>> This is regarding a long unresolved issue with HVM qemu-dm
>> crashing under
>>> heavy Dom0 IO load.
>>> 
>>> I decided to make a new thread on this seeing that I found
>> many old ones
>>> scattered about with no resolution:
>>> 
>>> Here are old threads regarding the same/similar issue
>>> 
>>> 
>> http://lists.xensource.com/archives/html/xen-users/2007-08/msg
> 00135.html
>> http://lists.xensource.com/archives/html/xen-users/2007-07/msg00624.html
>> 
>> Old bug reports of the issue:
>> 
>> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=542
>> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1038
>> 
>> In 1038, spam@xxxxxxx _incorrectly_ reports it is fixed in 3.1.1 -- Not only
>> can I find any evidence of this, I can EASILY reproduce the crash over and
>> over with 3.1.3-rc2.
>> 
>> I have a dev. Xen box available for anyone who wants access for stack
>> traces, ect.
>> 
>> Unfortunately I myself do not have enough knowledge to find the problem
>> myself, however I am available to instruct on how to produce the bug, run
>> stack traces, help organize this effort, and provide unrestricted access to
>> this dev machine if needed.
> 
> 
> 



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