[Pkg-libvirt-maintainers] Bug#845964: virt-manager: Guests get stuck during reboot

[Christoph Biedl]

tag -1 -unreproducible
retitle -1 "-machine pc-1.1" triggers "KVM internal error" upon reboot
reassign -1 qemu-system-x86
thanks

Hello,

so I managed to reproduce the issue with bare-metal qemu-system: Start a
guest with pc-1.1 machine type.

$ qemu-system-x86_64 -enable-kvm -machine pc-1.1 -m 512 -cdrom /home/software/linux/grml/grml64-small_2014.11.iso

Once the guest booted up issue a reboot command. When the guest shut
down and switches to reboot, it gets stuck and the console shows:

KVM internal error. Suberror: 1
emulation failure
EAX=1ffbffa0 EBX=00000000 ECX=1ffbffb4 EDX=dc421878
ESI=1ffc0000 EDI=000f7074 EBP=00000000 ESP=00006fc0
EIP=40000001 EFL=00010016 [----AP-] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0010 00000000 ffffffff 00c09300 DPL=0 DS   [-WA]
CS =0008 00000000 ffffffff 00c09b00 DPL=0 CS32 [-RA]
SS =0010 00000000 ffffffff 00c09300 DPL=0 DS   [-WA]
DS =0010 00000000 ffffffff 00c09300 DPL=0 DS   [-WA]
FS =0010 00000000 ffffffff 00c09300 DPL=0 DS   [-WA]
GS =0010 00000000 ffffffff 00c09300 DPL=0 DS   [-WA]
LDT=0000 00000000 0000ffff 00008200 DPL=0 LDT
TR =0000 00000000 0000ffff 00008b00 DPL=0 TSS32-busy
GDT=     000f74a0 00000037
IDT=     000f74de 00000000
CR0=00000011 CR2=00000000 CR3=00000000 CR4=00000000
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000000
Code=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

This happens with "pc-0.14" as well while "pc-i440fx-2.7" works as
expected.

    Christoph
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