Re: qemu-system-sparc64 not booting install of debian sparc64

[Connor McLaughlan <cont6pro3@gmail.com>]

On Tue, Jun 30, 2020 at 5:07 PM Adrian Davey <adrian@beth2.org> wrote:
> > Now it crashes after some VGA init:
> >
> > [ 84.672537] [drm] Found bochs VGA, ID 0xb0c5.
> > [ 84.673255][drm] Framebuffer size 16384 kB @ 0x1ff22000000, mmio @
> > 0x1ff23000000.
> > [ 84.711815] [TTM] Zone kernel: Available graphics memory: 2067220 KiB
> > [ 84.712821] [TTM] Initializing pool allocator
> > qemu: fatal: Trap 0x0032 while trap level (5) >= MAXTL (5), Error state
> > pc: 0000000000405618 npc: 000000000040561c
> > ...
> > pstate: 00000015 ccr: 00 (icc: ---- xcc: ----) asi: 11 tl: 5 pil: 0
> > gl: 2 tbr: 0000000000420000 hpstate: 0000000000000000 htba:
> > 0000000000000000 cansave: 5 canrestore: 1 otherwin: 0 wstate: 8
> > cleanwin: 7 cwp: 7 fsr: 0000000000000000 y: 0000000000000000 fprs:
> > 0000000000000000 Aborted
> >
> > I guess i will have to try some framebuffer kernel settings and stuff.
> >
> > Regards,
> > Connor
>
>
> Hi Connor,
>
> Taken from https://wiki.debian.org/Sparc64Qemu
>
> Create/edit /etc/modprobe.d/drm-blacklist.conf
>
> # blacklist of DRM modules that do not load on qemu-system-sparc64 sun4u
> blacklist drm
> blacklist bochs-drm
> blacklist ttm
>
>
> May help you here.
>
> Cheers,
>
> Adrian


I ended up passing the additional kernel parameter
"modprobe.blacklist=bochs_drm"
System is up and running in text mode as expected.

Thank you!

Regards,
Connor