RE: [Xen-devel] [PATCH] Fix softlockup issue after vcpu hotplug

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

>From: Keir Fraser [mailto:Keir.Fraser@xxxxxxxxxxxx]
>Sent: 2007年1月30日 18:10
>
>
>On 30/1/07 09:54, "Tian, Kevin" <kevin.tian@xxxxxxxxx> wrote:
>
>> Another simple approach to trigger such warning is to let
>> __xen_suspend() jumps to smp_resume immediately after
>> smp_suspend, as a test case for suspend cancel. People can
>> observe all vcpus except vcpu0 fall into that warning frequently.
>
>Do you know if this problem has been observed across many versions of
>Xen or
>e.g., only after the upgrade to 2.6.18?
>
> -- Keir

Dunno yet. I just found this issue when adding light weight suspend, 
and softlockup warning jumps out immediately after resuming back to 
old context. Then I tried manual cpu hotplug with same finding. I'll try 
an old 2.6.16 version to see whether it happens as comparison.

Thanks,
Kevin

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