> I think the window this occurs is something like: > > bad > OpenBSD 6.8-current (GENERIC) #510: Thu Oct 29 19:58:32 MDT 2020 > > good > OpenBSD 6.8-current (GENERIC) #508: Thu Oct 29 06:05:29 MDT 2020
I was trying to find a narrow window, but since it does not always happen, I ended up with a botched dichotomy. I thought I had narrowed between 20201101 and 20201026, but could actually reproduce with a 20201026 kernel. And there are no sparc64 changes (except a minor interrupt diff in vpci) between 20201026 and 20201101 anyway. I'll reinstall 6.8 tomorrow and restart checking, more carefully. (Unrelated to this, pmap_bootstrap() always uses 4 pages for the message buffer regardless of MSGBUFSIZE, this might be worth fixing)
