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RE: [Xen-ia64-devel] SMP host + SMP guest stability


  • To: "Tristan Gingold" <Tristan.Gingold@xxxxxxxx>, <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
  • Date: Wed, 1 Mar 2006 19:30:45 +0800
  • Delivery-date: Wed, 01 Mar 2006 11:31:44 +0000
  • List-id: Discussion of the ia64 port of Xen <xen-ia64-devel.lists.xensource.com>
  • Thread-index: AcY9FEtG0idp/RRkTtqIYqwbAeze1QADtGXA
  • Thread-topic: [Xen-ia64-devel] SMP host + SMP guest stability

>From: Tristan Gingold [mailto:Tristan.Gingold@xxxxxxxx]
>Sent: 2006年3月1日 17:42
>> >
>> >during the last night, I ran a script to compile the linux kernel.
>> >SMP host was enabled (4 cpus) and my SMP guest patch was included
>(but
>> >dom0
>> >ran on only 1 cpu).
>>
>> So domU runs with guest SMP enabled on another physical cpu at that
>time?
>Sorry, I was not clear enough.
>
>Only dom0 was enabled (using only 1 cpu).
>No other domain started (that's for this night).
>
>Tristan.

Hi, Tristan,
        Good news anyway, however I'd like to suggest adding either domU or 
domVTI running together with dom0, while on different physical processors. Most 
host SMP bugs we sent out recently are only seen with multiple domains on 
different processor. Idle domain is special which may shade some potential SMP 
issues there. ;-)

Thanks,
Kevin

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