Re: [Qemu-devel] migrate cancel bug in latest qemu upstream

[Amos Kong]

On Tue, Mar 12, 2013 at 10:58:54AM +0800, Amos Kong wrote:
> Hi quintela, I found a migrate bug in Autotest result, not sure if
> it's already known.
> 
> | commit fa3889162ff724d09eb6b6bd06ba54769100a77f
> | Merge: 6e72a00 a4960ef
> | Author: Anthony Liguori <address@hidden>
> | Date:   Sun Mar 10 20:39:17 2013 -0500
> 

Bug was introduced between v1.1.0..v1.2.0

----

This bug could not be reproduced in current latest qemu.git

| commit 225dc991b03f0f034aa348f5cf499de9d0979107
| Author: Cornelia Huck <address@hidden>
| Date:   Fri Mar 15 10:57:40 2013 +0100
| 
|     s390: Fix cpu refactoring fallout.
| 
 
> It can be caught by migrate.mig_cancel case in Autotest framework.
> Manual reproduce method: cancel migrate before migration completes
> 
> (src monitor) migrate -d tcp:0:1234
> (src monitor) migrate cancel
> 
> Destination vm exits expectedly
>   qemu: warning: error while loading state section id 2
> 
> Problem:
>  The migrate status of source vm is 'failed' (it should be 'canceled')
>  (monitor hmp1) Response to 'info migrate'
>  (monitor hmp1)    capabilities: xbzrle: off
>  (monitor hmp1)    Migration status: failed
>  (monitor hmp1)    total time: 0 milliseconds
> 
> 
> Long cmdline: (can reproduce)
> # qemu-system-x86_64 --enable-kvm -name 'vm0' -nodefaults -chardev
> socket,id=serial_id_serial1,path=/tmp/serial-serial1-20130311-182651-kfslPrch,server,nowait
> -device isa-serial,chardev=serial_id_serial1 -chardev
> socket,id=seabioslog_id_20130311-182651-kfslPrch,path=/tmp/seabios-20130311-182651-kfslPrch,server,nowait
> -device 
> isa-debugcon,chardev=seabioslog_id_20130311-182651-kfslPrch,iobase=0x402
> -device ich9-usb-uhci1,id=usb1 -drive
> file='/tmp/kvm_autotest_root/images/RHEL-Server-6.3-64-virtio.qcow2',if=none,id=virtio0
> -device virtio-blk-pci,drive=virtio0 -device
> e1000,netdev=idkrCwff,mac='9a:87:88:89:8a:8b',id='idxiFFqe' -netdev
> tap,id=idkrCwff -m 2048 -smp 4,maxcpus=4,cores=1,threads=1,sockets=4
> -cpu 'Penryn' -M pc -device
> usb-tablet,id=usb-tablet1,bus=usb1.0,port=1 -vnc :1 -vga std -rtc
> base=utc,clock=host,driftfix=none -boot order=cdn,once=c,menu=off
> 
> Simple cmdline: (can reproduce)
> # qemu-system-x86_64  --enable-kvm
>  /tmp/kvm_autotest_root/images/RHEL-Server-6.3-64-virtio.qcow2 -m
>  2048  -vnc :1  -monitor stdio -net none
> 
> Thanks, Amos