Having finally gotten to test this, the issue does NOT effect 5.10.70-1. So far I've only gotten to try reboot, but that went fine.
Might have been an ACPI or Xen mismerge into 4.19. Alas this may simply disappear into history. -- (\___(\___(\______ --=> 8-) EHM <=-- ______/)___/)___/) \BS ( | ehem+sig...@m5p.com PGP 87145445 | ) / \_CS\ | _____ -O #include <stddisclaimer.h> O- _____ | / _/ 8A19\___\_|_/58D2 7E3D DDF4 7BA6 <-PGP-> 41D1 B375 37D0 8714\_|_/___/5445