Re: [kvm-unit-tests PATCH v1 1/2] lib: s390x: terminate if PGM interrupt in interrupt handler

[Nico Boehr <nrb@xxxxxxxxxxxxx>]

Quoting Claudio Imbrenda (2022-10-18 16:09:50)
[...]
> diff --git a/lib/s390x/interrupt.c b/lib/s390x/interrupt.c
> index 7cc2c5fb..22bf443b 100644
> --- a/lib/s390x/interrupt.c
> +++ b/lib/s390x/interrupt.c
[...]
>  void handle_pgm_int(struct stack_frame_int *stack)
>  {
> +       if (THIS_CPU->in_interrupt_handler) {
> +               /* Something went very wrong, stop everything now without printing anything */
> +               smp_teardown();
> +               disabled_wait(0xfa12edbad21);
> +       }

Maybe I am missing something, but is there a particular reson why you don't do
 THIS_CPU->in_interrupt_handler = true;
here as well?