Hi,
I was experimenting with 9p last week and thought it was related to that.
But seeing your bug I realize I have seen the same issue:
ubuntu@dradis:~$ virsh start focal-t1 --console
Domain focal-t1 started
Connected to domain focal-t1
Escape character is ^]
Populating /vdevice methods
Populating /vdevice/vty@30000000
Populating /vdevice/nvram@71000000
Populating /pci@800000020000000
( 700 ) Program Exception [ 0 ]
R0 .. R7 R8 .. R15 R16 .. R23 R24 .. R31
000000000dbf0b14 000000000dc63030 0000000000000000 0000000000008000
000000000e67eff0 000000000e47b010 000000000e7451bc 000000000000f003
000000000dc25e00 000000000dc63028 0000000000000000 0000000000000006
000000000e7592e8 000000000fbd00c8 000000000e771373 000000000dc1bc00
0000000000000000 0000000000000000 000000000dc63040 000000000dc20778
0000000000000000 0000000000000000 000000000dbf4750 0000000000000003
0000000000000000 0000000000000000 000000000dc20bb8 000000000000f001
0000000000000000 0000000000000000 000000000dc20948 ffffffffffffffff
CR / XER LR / CTR SRR0 / SRR1 DAR / DSISR
80000402 000000000dbf0b14 0000000000000000 0000000000000000
0000000020040000 0000000000000000 8000000000081000 00000000
Unless someone else here has an immediate idea IMHO this might be better
reported upstream. There are more PPC people and IBM itself reading the
report.
@Björn - would you mind doing so with a mail to [1]?
If you happen to do so updating this bug here with a link to the discussion
would be great.
[1]: https://lists.nongnu.org/mailman/listinfo/qemu-devel
P.S. similar old bugs with the same signature are [2][3] but those were due
to grub triggering an illegal instruction. I guess we can assume that we
run into an illegal instruction again here, but whyt/details I can't derive
out of the logs.
[2]: https://bugzilla.redhat.com/show_bug.cgi?id=1400476
[3]: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1459706
--
Christian Ehrhardt
Staff Engineer, Ubuntu Server
Canonical Ltd
