On Sat, Feb 13, 2021 at 05:24:17AM +0200, V S wrote: > > Synopsis: system lockup during drm stage > > Category: radeondrm > > Environment: > > System : OpenBSD 6.9 > Details : OpenBSD 6.9-beta (GENERIC.MP) #331: Thu Feb 11 20:28:45 > MST 2021 > > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP > > Architecture: OpenBSD.amd64 > Machine : amd64 > > Description: > During booting after radeondrm gets loaded screen goes black following > the 100% cpu FAN sound, suspecting kernel panic.
Are you able to connect an external display to confirm that is the case? Failing that or serial it should also be possible to disable panic and get a trace via /var/crash as described in crash(8). As this likely occurs before the rc script runs you will need to use a kernel with the following diff or boot> boot -d ddb> w db_panic 0 ddb> c Index: sys/kern/subr_prf.c =================================================================== RCS file: /cvs/src/sys/kern/subr_prf.c,v retrieving revision 1.102 diff -u -p -r1.102 subr_prf.c --- sys/kern/subr_prf.c 28 Nov 2020 17:53:05 -0000 1.102 +++ sys/kern/subr_prf.c 13 Feb 2021 06:08:57 -0000 @@ -104,7 +104,7 @@ const char *faultstr; /* page fault stri /* * Enter ddb on panic. */ -int db_panic = 1; +int db_panic = 0; /* * db_console controls if we can be able to enter ddb by a special key
