Re: xen boot PVH guest with linux 5.6.0-rc4-ish kernel: general protection fault, RIP: 0010:__pv_queued_spin_lock_slowpath

From: JÃrgen GroÃ
Date: Thu Mar 05 2020 - 05:18:49 EST


On 04.03.20 18:52, Sander Eikelenboom wrote:
Hi Juergen,

Just tested a 5.6.0-rc4'ish kernel (8b614cb8f1dcac8ca77cf4dd85f46ef3055f8238, so it includes the xen fixes from x86 trees).
Xen is the latest xen-unstable, dom0 kernel is 5.5.7.

During boot of the PVH guest I got the splat below.
With a 5.5.7 kernel the guest boots fine.

There were 2 bugs. I have sent the patches.

Interesting, though, that you did see only one of them (I hit the
same bug as you did only after fixing the xenbus problem).


Juergen