port-macppc/56715: userland watchdog timeout while running atf tests

[martin%NetBSD.org@localhost]

>Number:         56715
>Category:       port-macppc
>Synopsis:       userland watchdog timeout while running atf tests
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-macppc-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 15 14:00:00 +0000 2022
>Originator:     Martin Husemann
>Release:        NetBSD 9.99.93
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD gethsemane.aprisoft.de 9.99.93 NetBSD 9.99.93 (GETHSEMANE) #163: Tue Feb 15 10:16:48 CET 2022 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/src/sys/arch/macppc/compile/GETHSEMANE macppc
Architecture: powerpc
Machine: macppc
>Description:

Running atf tests on a dual G4 Quicksilver hangs the userland watchdog
ticker long enough to cause a timeout:

[ 2616.7713672] swwdog: 60 second timer expired
[ 2616.7713672] panic: watchdog timer expired


>How-To-Repeat:
cd /usr/tests && atf-run

>Fix:
n/a