Hello, all!
From: Winder Visen <windervisen () outlook ! com>:
> Host is a Ryzen machine running Linux 6.1.27-3-lts and QEMU 8.0.0.
> Happy to provide more details if needed.
Confirmed in my environment: trap occurred
under openSUSE 15.4 LEAP Host with: qemu-kvm-6.2.0-150400.37.14.2.x86_64,
host Linux kernel 5.14.21-150400.24.63-default,
and OpenBSD 7.3 RELEASE guest (install73.iso).
Known workaround:
- this trap does not occur when installing sets from other
sources than "cd0" (tested "http"). So one can use this way to avoid this
issue.
- tested various guest RAM: 1, 2 and 3GB. On 3GB trap occurred later but still
was
there.
Important observations:
- once guest system is installed and non-ramdisk kernel (plain bsd on 1vCPU)
used - I was unable to reproduce this trap anymore - even when I tried
to copy whole contents of install73.iso CD to HDD.
- so it looks to me that this trap is somehow related to bsd.rd kernel only
(just guess) or to memory pressure when ramdisk is allocated.
Here are kernel and trap details in my case:
Trap details:
wdc_atapi_start: not ready, st = 50 fatal protection fault in supervisor mode
trap type 4 code 0 rip ffffffff810089d9 cs 8 rflags 10282 cr2 2377bf000
cpl 6 rsp ffff8000150a2f50 gsbase 0xffffffff818fbff0 kgsbase 0x0
panic: trap type 4, code=0, pc=ffffffff810089d9
syncing disks...6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 giving up
Kernel version (install73.iso):
OpenBSD 7.3 (RAMDISK_CD) #1063: Sat Mar 25 10:41:49 MDT 2023
dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/RAMDISK_CD
Best regards
--Henryk Paluch
