migration amd -> intel

migration amd -> intel

[Thomas Mueller]

hi

in the wiki i read that migration fro amd to intel and back should work.

i tried it several times an i get an error (kernel 2.6.25 / kvm-69):


host a) /usr/bin/kvm -drive file=drive0.qcow2,media=disk,boot=on,if=ide 
-net tap,ifname=vnet2 -net nic,model=e1000,macaddr=00:16:3e:7d:8e:96 
-monitor tcp:127.0.0.1:20002,server,nowait -k de-ch -vnc :2 -m 1024 -smp 
2 -pidfile /var/run/mit-kvm/2.pid -name debian-etch

host b) /usr/bin/kvm -drive file=drive0.qcow2,media=disk,boot=on,if=ide 
-net tap,ifname=vnet2 -net nic,mod96 -monitor 
tcp:127.0.0.1:20002,server,nowait -k de-ch -vnc :2 -m 1024 -smp 2 
-pidfile /var/run/mit-kvm/2.pid -name debian-etch -incoming tcp://0:4444


host a) telnet to 20002 -> migrate tcp://192.168.1.135:444

then i see this on  host b)

unhandled vm exit: 0x80000021 vcpu_id 0
rax 0000000fbf50d8c7 rbx 0000000fbf50d8c7 rcx 0000000fbf50d8c7 rdx 
0000000000000043
rsi 0000000025cdfac7 rdi ffffffff80559f28 rsp ffffffff80559f40 rbp 
ffffffff80200bba
r8  ffffffff80200bba r9  ffffffff80200bba r10 0000000000000000 r11 
ffffffff8021c1c5
r12 0000000000000000 r13 ffffffffffffffff r14 ffffffff80587a00 r15 
0000000000000000
rip ffffffff802206e4 rflags 00000202
cs 0010 (00000000/ffffffff p 1 dpl 0 db 0 s 1 type b l 1 g 0 avl 0)
ds 0018 (00000000/ffffffff p 1 dpl 0 db 1 s 1 type 3 l 0 g 1 avl 0)
es 0018 (00000000/ffffffff p 1 dpl 0 db 1 s 1 type 3 l 0 g 1 avl 0)
ss 0018 (00000000/ffffffff p 1 dpl 0 db 1 s 1 type 3 l 0 g 1 avl 0)
fs 0000 (43cf3960/ffffffff p 0 dpl 0 db 0 s 0 type 0 l 0 g 0 avl 0)
gs 0000 (ffffffff80520000/ffffffff p 0 dpl 0 db 0 s 0 type 0 l 0 g 0 avl 0)
tr 0040 (ffff810001007b80/00002087 p 1 dpl 0 db 0 s 0 type 9 l 0 g 0 avl 0)
ldt 0000 (00000000/0000ffff p 0 dpl 0 db 0 s 0 type 0 l 0 g 0 avl 0)
gdt ffffffff8055a000/80
idt ffffffff805ca000/fff
cr0 8005003b cr2 7f39fdaab0f8 cr3 37869000 cr4 6e0 cr8 0 efer d01
Aborted

also i tried "offline" migration.
host a) telnet -> stop, migrate tcp://192.168.1.135:444
host b) telnet -> cont
just after "cont" i get the error above.

- Thomas