Re: Crash during resume of pcie bridge due to infinite loop in ACPICA

Rafael J. Wysocki
2025-11-27T13:02:48Z

On Thu, Nov 27, 2025 at 1:08 AM Bert Karwatzki <spasswolf@web.de> wrote:
>
> Am Dienstag, dem 25.11.2025 um 20:46 +0100 schrieb Rafael J. Wysocki:
> >
> >
> > What may be happening, but this is just a theory, is that the
> > interpreter aborts the evaluation of a method due to an internal
> > timeout, essentially the control_state->control.loop_timeout check in
> > acpi_ds_exec_end_control_op() and that leads to a subsequent hard
> > failure like a deadlock.
> >
> > This may be tested by increasing the ACPI_MAX_LOOP_TIMEOUT value, but
> > I'm not sure it's practical to try that.
>
> I don't think this the case here because ACPI_MAX_LOOP_TIMEOUT defaults to
> 30s and the walk loop until the crash only lasts ~2s.

I see, thanks!