Re: [Xen-users] Tools to take a kernel crash dump.

[Tej <bewith.tej@xxxxxxxxx>]

On Fri, Jul 17, 2009 at 4:42 PM, Sreeharsha
Totakura<sreeharsha.totakura@xxxxxxx> wrote:
> Hi Tej,
>
> The restart (crash) cannot be reproduced but its intermittent. It happens
> idiopathic, we cannot predict when it will next restart (crash). We have
> been observing this for a month. It ran perfectly last week and it
> restarted (crashed) today. Within minutes of restart it again took a
> restart. Now it appears to be running fine, the next restart can be in
> minutes, days or weeks.
>
> The Dom0 is running on PV Xen 3.1 kernel.
>
> I observed the system logs and there was nothing that hinted a cause for
> the system restart.
> If I should be looking at any other log, please let me know.

Collect the logs when system restart/panic using netconsole.
Can you try some newer xen version like 3.4..

HTH


>
> Regards,
> Sree Harsha Totakura
> Member, Open Source Platform - TEG
> Tata Consultancy Services
> Ph:- +91-22-67782038
> Mailto: sreeharsha.totakura@xxxxxxx
> Website: http://www.tcs.com
> ____________________________________________
> Experience certainty.   IT Services
>                  Business Solutions
>                  Outsourcing
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>
>             Tej
>             <bewith.tej@gmail
>             .com>                                                      To
>                                       Sreeharsha Totakura
>             07/17/2009 03:27          <sreeharsha.totakura@xxxxxxx>
>             PM                                                         cc
>                                       Xen User-List
>                                       <xen-users@xxxxxxxxxxxxxxxxxxx>
>                                                                   Subject
>                                       Re: [Xen-users] Tools to take a
>                                       kernel crash dump.
>
>
>
>
>
>
>
>
>
>
> On Fri, Jul 17, 2009 at 3:07 PM, Sreeharsha
> Totakura<sreeharsha.totakura@xxxxxxx> wrote:
>>
>> Hello Everyone,
>>
>> We have noticed that one of our servers xen Dom0 is restarting
>> idiopathically. Atleast, we are not able to analyze the cause. I have
>> checked the logs but couldn't find anything relating to it.
>
> what xen version, Can crash be reproduced????
>
>>
>> Are there any tools such as kdump (which doesn't seem to work on xenified
>> kernels) for catching the kernel crash snapshot.
>
> netconsole, collects log.
>
>>
>> Regards,
>> Sree Harsha Totakura
>> Member, Open Source Platform - TEG
>> Tata Consultancy Services
>> Ph:- +91-22-67782038
>> Mailto: sreeharsha.totakura@xxxxxxx
>> Website: http://www.tcs.com
>> ____________________________________________
>> Experience certainty.   IT Services
>>                  Business Solutions
>>                  Outsourcing
>> ____________________________________________
>>
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