Re: [Xen-devel] Xen 4.7.0 boot PANIC on kernel 4.7.0-4 + UEFI ?

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 27.07.16 at 01:32, <lists@xxxxxxxxxxxx> wrote:
> I'm running Xen-4.7.0_08-452 + linux kernel 4.7.0-4.g89a2ada-default on 
> X86_64 UEFI hardware.
> 
> If I boot without Xen hypervisor enabled it boots fine.
> 
> If I boot with Xen enabled it PANICs:
>       
>       (XEN) [2016-07-26 22:05:33] Hardware Dom0 crashed: rebooting machine in 
> 5 seconds.
>       (XEN) [2016-07-26 22:05:33] APIC error on CPU0: 40(00)
>       (XEN) [2016-07-26 22:05:38] ----[ Xen-4.7.0_08-452  x86_64  debug=n  
> Tainted:    C ]----
>       (XEN) [2016-07-26 22:05:38] CPU:    0
>       (XEN) [2016-07-26 22:05:38] RIP:    e008:[<000000009e7463c6>] 
> 000000009e7463c6

Taking this together with

(XEN)  000009e430000-000009e79ffff type=3 attr=000000000000000f

from your later post with a full log, I can't see why /mapbs wouldn't
at least change the picture (I'm not saying everything necessarily
would work with that), yet without a full log thereof I can't judge
whether your claim of that being the case is actually true. In any
event the "reboot=" command line option should allow to overcome
this problem, which is a secondary one only anyway.

Jan


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