Re: [Xen-devel] slow storage backend kills stubdomains

[Keith Coleman <list.keith@xxxxxxxxxxx>]

On Tue, Sep 29, 2009 at 6:45 PM, Keith Coleman <list.keith@xxxxxxxxxxx> wrote:
> On Tue, Sep 29, 2009 at 2:38 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
>> On Mon, Sep 28, 2009 at 04:43:17PM -0400, Keith Coleman wrote:
>>> After deploying stubdomains in a production environment with xen 3.4.1
>>> and the official 2.6.18-xen kernel I've had a lot of crashes. Each
>>> server hosts several PV and HVM domUs. Whenever the storage backend
>>> gets slow (RAID rebuild, domU with heavy disk IO, etc) the stubdomains
>>> begin dying off. I have two questions:
>>>
>>> 1. Has anyone else seen this issue?
>>> 2. fs-backend is still running so is there any way to attach a new
>>> stubdom to the existing (orphaned) HVM domU?
>>>
>>
>> Did you apply this patch?
>>
>> http://lists.xensource.com/archives/html/xen-devel/2009-08/msg00335.html
>>
>> -- Pasi
>>
>>
>
> This is a different. The patch that you suggested was already in place
> since I contributed to the discovery and resolution of that problem.
> This particular issue seems to be related to high IO latency.
>
>
> Keith Coleman
>

This is likely another instance of the same issue:

http://lists.xensource.com/archives/html/xen-users/2009-10/msg00009.html


Keith Coleman

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