On Wed, Apr 15, 2026 at 08:17:41PM +0200, Страхиња Радић wrote: > Hi, > > I'm trying to setup OpenBSD 7.8 (release) on a AMD Ryzen 5 system (GPU: > AMD Radeon RX 6500 XT). The installation went without errors, but when > I ran > > # fw_update > > (which didn't report any errors, and added amdgpu and a number of > related drivers) and rebooted, I got the following kernel panic (OCRed > from the photo):
The installer will also install amdgpu firmware. Did you not have an internet connection when the installer ran? Does the trace you've shown still occur with a snapshot? There have been significant changes to amdgpu since 7.8. > > ======================================================================= > 016 pledge_sysctl 017_tmppath 018 pledgepaths > 019_unveil_mount 020_freetype 021_calendar > 022_recvfd 023_calendar 024_expat > 025_sack 026_smtpd 027_iked > 028_xserver 029_v6daemons 030_rpki > starting local daemons: cron xenodm. > Wed Apr 15 17:15:59 CEST 2026 > drm_sched_entity_init: called with uninitialized scheduler > drm_sched_entity_init: called with uninitialized scheduler > drm:pid7964: drm_sched_job_init *ERROR* [drm] *ERROR* drm_sched_job_init: > entity has no rq! > uvm_fault(0xfffffd83dd97e2e8, 0x1f0, 0, 1) -> e > kernel: page fault trap, code=0 > Stopped at amdgpu_bo_unreserve+0x1a: movq 0x1f0(%rdi), %rdi > TID PID UID PRFLAGS PFLAGS CPU COMMAND > *386028 7964 0 0x100000 0 4K Xorg > 294895 72157 0 0x100002 0 2 sha256 > amdgpu_bo_unreserve (0) at amdgpu_bo_unreserve+0x1a > amdgpu_vm_init(ffff8000001f0000.ffff800001838000, 0) at amdgpu_vm_init+0x440 > amdgpu_driver_open_kms(ffff8000001f0058,ffff8000022d5800) at > amdgpu_driver_open_kms+0x139 > drm_file_alloc(ffff8000001ae980) at drm_file_alloc+0x22d > drmopen(15701,3,2000,ffff8000fffeafe0) at drmopen+0x12c > spec_open_clone(ffff80005e870218) at spec_open_clone+0x166 > spec_open(ffff80005e870218) at spec_open+0x198 > VOP_OPEN(fffffd83d822cbf8,3,fffffd845d6c6bc8,ffff8000fffeafe0) at > VOP_OPEN+0x57 > vn_open(ffff80005e870430,3,0) at vn_open+0x2ea > doopenat(ffff8000fffeafe0,ffffff9c,73a981fa4c40,2,0,ffff80005e8705d0) at > doopenat+0x221 > syscall(ffff80005e870650) at syscall+0x5f9 > Xsyscall at Xsyscall+0x128 > end of kernel > end trace frame: 0x73a981fa4c20, count: 3 > https://www.openbsd.org/ddb.html describes the minimum info required in bug > reports. Insufficient info makes it difficult to find and fix bugs. > ddb{4}> > ======================================================================= > > Next, at the ddb prompt I entered > > ddb{4}> reboot > > and tried to enter UKC to "disable amdgpu", entering "boot -c" at the > initial "boot>" prompt, but then I got the following screen: > > ======================================================================= > kbc: cmd word write error > [ using 4604312 bytes of bsd ELF symbol table ] > Copyright (c) 1982, 1986, 1989, 1991, 1993 > The Regents of the University of California. All rights reserved. > Copyright (c) 1995-2025 OpenBSD. All rights reserved. https://www.OpenBSD.org > > OpenBSD 7.8 (GENERIC.MP) #54: Sun Oct 12 12:58:11 MDT 2025 > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP > real mem = 16223113216 (15471MB) > avail mem = 15704649728 (14977MB) > User Kernel Config > UKC> > ======================================================================= > > and the keyboard was unresponsive (at the same time, cursor after the > "UKC>" prompt is flickering like crazy). > > Any help would be appreciated. > >
