Re: [Xen-devel] [PATCH 1/2] VMX: fix VMCS race on context-switch paths

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 15.02.17 at 11:27, <sergey.dyasli@xxxxxxxxxx> wrote:
> This is what I'm getting during the original test case (32 VMs reboot):
> 
> (XEN) [ 1407.789329] Watchdog timer detects that CPU12 is stuck!
> (XEN) [ 1407.795726] ----[ Xen-4.6.1-xs-local  x86_64  debug=n  Not tainted 
> ]----

Hmm, this was with a non-debug build, so the ASSERT() in
vmx_vmcs_reload() was a no-op, yet it would have been useful
to know whether active_cpu was -1 when getting stuck here.
Btw - there was no nested virt in the picture in your try, was
there?

Jan


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