qemu-system-sparc fails to boot Solaris 8 in an emulated SS-5

Host environment

• Operating system: Windows 10 22H2

• OS/kernel version: 19045.3758

• Architecture: x86_64

• QEMU flavor: qemu-system-sparc

• QEMU version: QEMU emulator version 8.1.91 (v8.2.0-rc1-12040-g59b55cb373)

• QEMU command line:

  .\qemu-system-sparc -drive file=sun-solaris-8-0204-installation-sparc.iso,bus=0,unit=6,media=cdrom,readonly=on -bios ss5-170.bin

Emulated/Virtualized environment

• Operating system: Solaris 8 with Sun PROM
• Architecture: sparc

Description of problem

Sun PROM fails to boot Solaris 8 in an emulated Sparcstation 5, with qemu exiting with a trap 0x29 error.

Steps to reproduce

1. Launch qemu with command line above
2. Sun PROM tries to boot from the network and shows Tiemout waiting for ARP/RARP packet messages
3. Interrupt network boot entering sendkey stop-a in qemu monitor (compat_monitor0)
4. Back in Sun PROM, boot from cdrom: boot cdrom:d
5. Solaris 8 starts booting
6. qemu exits with fatal error

qemu: fatal: Trap 0x29 (Data Access Error) while interrupts disabled, Error state
pc: f0041298  npc: f004129c
%g0-7: 00000000 f02441a8 04400fc2 000001e2 00000027 f0243b88 00000000 f0244020
%o0-7: ffff8000 00008000 00000f00 044000c1 f0258518 ffeec000 fbe3a4b8 f0041be4
%l0-7: 04400fc1 f0041c78 f0041c7c 00000002 0000010f 00000002 0000002a fbe39f78
%i0-7: ffff8000 00008000 00000f00 044000c2 00000000 ffeec000 fbe3a020 f0041be4
%f00:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f08:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f16:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f24:  0000000000000000 0000000000000000 0000000000000000 0000000000000000
psr: 04000fc1 (icc: ---- SPE: SP-) wim: 00000002
fsr: 00000000 y: 00000000

Additional information