On Tue, 2019-01-15 at 23:49 +0100, Tobias Ulmer wrote: > Hi, > > both the latest stable 4.20.2 and 5.0 rc2+ hang early on the G5 Quad. > > Surely I'm not the first to run into this, but I couldn't find any > discussion or bug report. Sorry if you're already aware. > > You can see it hang here (5.0 rc2+, 4.20.2 is nearly identical) until > the watchdog triggers a reboot: > > https://i.imgur.com/UiCVRuG.jpg > > If I had to make an uneducated guess, it seems to boot into the same > codepath twice (mpic was already initialized, then it starts again right > after smp bringup). Maybe on a second CPU? > > To narrow it down a little, my last known good was 4.18.9
I don't think it's an MPIC related problem but it does appear to hang about when interrupts get turned on. I have one of these critters in the office, but I'm working remotely this week so I won't be able to dig into this until next week. It might help if you could bisect in the meantime. Cheers, Ben.