Re: [Xen-devel] Xen 4.12.0-rc Hangs Around masked ExtINT on CPU#

["John L. Poole" <jlpoole56@xxxxxxxxx>]

On 3/27/2019 1:14 AM, Jan Beulich wrote:
> > > > On 26.03.19 at 18:21, <jlpoole56@xxxxxxxxx> wrote:
> > zeta /usr/local/src/xen # cat xen/.config |grep CONFIG_HVM
> > # CONFIG_HVM is not set
> > zeta /usr/local/src/xen #
> >
> > # tried 2 boot attempts
> > log at: https://pastebin.com/nL4BWJ6Y
> >
> > Hang points at lines:
> Thanks for trying anyway; one further possibility eliminated. Looking
> at the logs I've had another thought (wild guess again, so not really
> much hope): Could you try "mwait-idle=no"?
>
> Jan
I modified man_xen.cfg by adding at the end the kernel parameter:

mwait-idle=no

Rebooted.
Result: hung:

...
(XEN) [ 200.939353] TSC deadline timer enabled
(XEN) [2019-03-27 13:21:21] Platform timer appears to have unexpectedly 
wrapped 1 times.
(XEN) [2019-03-27 13:21:21] mwait-idle: disabled
(XEN) [2019-03-27 13:21:21] Booting processor 1/2 eip 3e000
(XEN) [2019-03-27 13:21:21] Setting warm reset code and vector.
(XEN) [2019-03-27 13:21:21] 1.
(XEN) [2019-03-27 13:21:21] 2.
(XEN) [2019-03-27 13:21:21] 3.
(XEN) [2019-03-27 13:21:21] Asserting INIT.
(XEN) [2019-03-27 13:21:22] Waiting for send to finish...

Log at: https://pastebin.com/zdyhCtGv

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