On 01.10.19 17:16, Boris Ostrovsky wrote:
Currently execution of panic() continues until Xen's panic notifier
(xen_panic_event()) is called at which point we make a hypercall that
never returns.
This means that any notifier that is supposed to be called later as
well as significant part of panic() code (such as pstore writes from
kmsg_dump()) is never executed.
There is no reason for xen_panic_event() to be this last point in
execution since panic()'s emergency_restart() will call into
xen_emergency_restart() from where we can perform our hypercall.
Reported-by: James Dingwall <[email protected]>
Signed-off-by: Boris Ostrovsky <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Juergen
