On Sat, Oct 8, 2022 at 12:27 PM lijiang <lijiang@redhat.com> wrote:

>> --- a/ppc64.c
>> +++ b/ppc64.c
>> @@ -1947,7 +1947,7 @@ ppc64_in_emergency_stack(int cpu, ulong addr, bool verbose)
>>          if (cpu < 0  || cpu >= kt->cpus)
>>                  return NONE_STACK;
>>
>> -       if (ms->emergency_sp) {
>> +       if (ms->emergency_sp && ms->emergency_sp[cpu]) {
>
>
> Is it better to use the IS_KVADDR(ms->emergency_sp[cpu]) ? For example:
>
> +       if (ms->emergency_sp && IS_KVADDR(ms->emergency_sp[cpu]) ) {

Yes, looks better.  Please go ahead with this.