[Qemu-devel] qemu.git/qemu-kvm.git bugs during migrate + reboot

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* [Qemu-devel] qemu.git/qemu-kvm.git bugs during migrate + reboot
@ 2012-09-20 16:51 Lucas Meneghel Rodrigues
  2012-09-25 12:59 ` Anthony Liguori
  0 siblings, 1 reply; 3+ messages in thread
From: Lucas Meneghel Rodrigues @ 2012-09-20 16:51 UTC (permalink / raw)
  To: QEMU devel, KVM mailing list, Avi Kivity, Ademar Reis,
	Cleber Rosa

Hi guys,

We're seeing the following problem during upstream testing:

qemu: VQ 0 size 0x80 Guest index 0x2d6
     inconsistent with Host index 0x18: delta 0x2be
     qemu: warning:  error while loading state for
     instance 0x0 of device '0000:00:04.0/virtio-blk'
     load of migration failed

This is happening consistently with qemu and qemu-kvm. Test case is 
simple, while the vm goes through a reboot loop, a parallel ping-pong 
migration loop happens.

I'm happy to provide more details and logs.

Lucas

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [Qemu-devel] qemu.git/qemu-kvm.git bugs during migrate + reboot
  2012-09-20 16:51 [Qemu-devel] qemu.git/qemu-kvm.git bugs during migrate + reboot Lucas Meneghel Rodrigues
@ 2012-09-25 12:59 ` Anthony Liguori
  2012-09-25 13:17   ` Lucas Meneghel Rodrigues
  0 siblings, 1 reply; 3+ messages in thread
From: Anthony Liguori @ 2012-09-25 12:59 UTC (permalink / raw)
  To: Lucas Meneghel Rodrigues, QEMU devel, KVM mailing list,
	Avi Kivity, Ademar Reis, Cleber Rosa

Lucas Meneghel Rodrigues <lmr@redhat.com> writes:

> Hi guys,
>
> We're seeing the following problem during upstream testing:
>
> qemu: VQ 0 size 0x80 Guest index 0x2d6
>      inconsistent with Host index 0x18: delta 0x2be
>      qemu: warning:  error while loading state for
>      instance 0x0 of device '0000:00:04.0/virtio-blk'
>      load of migration failed
>
> This is happening consistently with qemu and qemu-kvm. Test case is 
> simple, while the vm goes through a reboot loop, a parallel ping-pong 
> migration loop happens.
>
> I'm happy to provide more details and logs.

Can you provide the full command line?

Regards,

Anthony Liguori

>
> Lucas
> --
> To unsubscribe from this list: send the line "unsubscribe kvm" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [Qemu-devel] qemu.git/qemu-kvm.git bugs during migrate + reboot
  2012-09-25 12:59 ` Anthony Liguori
@ 2012-09-25 13:17   ` Lucas Meneghel Rodrigues
  0 siblings, 0 replies; 3+ messages in thread
From: Lucas Meneghel Rodrigues @ 2012-09-25 13:17 UTC (permalink / raw)
  To: Anthony Liguori
  Cc: Cleber Rosa, Ademar Reis, QEMU devel, KVM mailing list,
	Avi Kivity

On 09/25/2012 09:59 AM, Anthony Liguori wrote:
> Lucas Meneghel Rodrigues <lmr@redhat.com> writes:
>
>> Hi guys,
>>
>> We're seeing the following problem during upstream testing:
>>
>> qemu: VQ 0 size 0x80 Guest index 0x2d6
>>       inconsistent with Host index 0x18: delta 0x2be
>>       qemu: warning:  error while loading state for
>>       instance 0x0 of device '0000:00:04.0/virtio-blk'
>>       load of migration failed
>>
>> This is happening consistently with qemu and qemu-kvm. Test case is
>> simple, while the vm goes through a reboot loop, a parallel ping-pong
>> migration loop happens.
>>
>> I'm happy to provide more details and logs.
>
> Can you provide the full command line?

Sure. The problem happens with *all* migration protocols, let's use as 
an example the protocol fd. The vm is started with:

09/22 07:26:19 INFO |    kvm_vm:1605| /usr/local/autotest/tests/kvm/qemu
09/22 07:26:19 INFO |    kvm_vm:1605|     -S
09/22 07:26:19 INFO |    kvm_vm:1605|     -name 'vm1'
09/22 07:26:19 INFO |    kvm_vm:1605|     -nodefaults
09/22 07:26:19 INFO |    kvm_vm:1605|     -chardev 
socket,id=hmp_id_humanmonitor1,path=/tmp/monitor-humanmonitor1-20120922-072139-HDnHgnLh,server,nowait 

09/22 07:26:19 INFO |    kvm_vm:1605|     -mon 
chardev=hmp_id_humanmonitor1,mode=readline
09/22 07:26:19 INFO |    kvm_vm:1605|     -chardev 
socket,id=qmp_id_qmpmonitor1,path=/tmp/monitor-qmpmonitor1-20120922-072139-HDnHgnLh,server,nowait 

09/22 07:26:19 INFO |    kvm_vm:1605|     -mon 
chardev=qmp_id_qmpmonitor1,mode=control
09/22 07:26:19 INFO |    kvm_vm:1605|     -chardev 
socket,id=serial_id_20120922-072139-HDnHgnLh,path=/tmp/serial-20120922-072139-HDnHgnLh,server,nowait 

09/22 07:26:19 INFO |    kvm_vm:1605|     -device 
isa-serial,chardev=serial_id_20120922-072139-HDnHgnLh
09/22 07:26:19 INFO |    kvm_vm:1605|     -chardev 
socket,id=seabioslog_id_20120922-072139-HDnHgnLh,path=/tmp/seabios-20120922-072139-HDnHgnLh,server,nowait 

09/22 07:26:19 INFO |    kvm_vm:1605|     -device 
isa-debugcon,chardev=seabioslog_id_20120922-072139-HDnHgnLh,iobase=0x402
09/22 07:26:19 INFO |    kvm_vm:1605|     -device ich9-usb-uhci1,id=usb1
09/22 07:26:19 INFO |    kvm_vm:1605|     -drive 
file='/tmp/kvm_autotest_root/images/rhel62-64.qcow2',if=none,cache=none,id=virtio0 

09/22 07:26:19 INFO |    kvm_vm:1605|     -device 
virtio-blk-pci,drive=virtio0
09/22 07:26:19 INFO |    kvm_vm:1605|     -device 
virtio-net-pci,netdev=idPQlGQt,mac='9a:4b:4c:4d:4e:4f',id='id01mORp'
09/22 07:26:19 INFO |    kvm_vm:1605|     -netdev tap,id=idPQlGQt,fd=24
09/22 07:26:19 INFO |    kvm_vm:1605|     -m 2048
09/22 07:26:19 INFO |    kvm_vm:1605|     -smp 
2,cores=1,threads=1,sockets=2
09/22 07:26:19 INFO |    kvm_vm:1605|     -device 
usb-tablet,id=usb-tablet1,bus=usb1.0,port=1
09/22 07:26:19 INFO |    kvm_vm:1605|     -vnc :0
09/22 07:26:19 INFO |    kvm_vm:1605|     -vga std
09/22 07:26:19 INFO |    kvm_vm:1605|     -rtc 
base=utc,clock=host,driftfix=none
09/22 07:26:19 INFO |    kvm_vm:1605|     -boot order=cdn,once=c,menu=off
09/22 07:26:19 INFO |    kvm_vm:1605|     -enable-kvm
09/22 07:26:19 INFO |    kvm_vm:1605|     -enable-kvm

Then the state will be migrated to a new process:

09/22 07:26:48 INFO |    kvm_vm:1605| /usr/local/autotest/tests/kvm/qemu
09/22 07:26:48 INFO |    kvm_vm:1605|     -S
09/22 07:26:48 INFO |    kvm_vm:1605|     -name 'vm1'
09/22 07:26:48 INFO |    kvm_vm:1605|     -nodefaults
09/22 07:26:48 INFO |    kvm_vm:1605|     -chardev 
socket,id=hmp_id_humanmonitor1,path=/tmp/monitor-humanmonitor1-20120922-072648-g6gL8thp,server,nowait 

09/22 07:26:48 INFO |    kvm_vm:1605|     -mon 
chardev=hmp_id_humanmonitor1,mode=readline
09/22 07:26:48 INFO |    kvm_vm:1605|     -chardev 
socket,id=qmp_id_qmpmonitor1,path=/tmp/monitor-qmpmonitor1-20120922-072648-g6gL8thp,server,nowait 

09/22 07:26:48 INFO |    kvm_vm:1605|     -mon 
chardev=qmp_id_qmpmonitor1,mode=control
09/22 07:26:48 INFO |    kvm_vm:1605|     -chardev 
socket,id=serial_id_20120922-072648-g6gL8thp,path=/tmp/serial-20120922-072648-g6gL8thp,server,nowait 

09/22 07:26:48 INFO |    kvm_vm:1605|     -device 
isa-serial,chardev=serial_id_20120922-072648-g6gL8thp
09/22 07:26:48 INFO |    kvm_vm:1605|     -chardev 
socket,id=seabioslog_id_20120922-072648-g6gL8thp,path=/tmp/seabios-20120922-072648-g6gL8thp,server,nowait 

09/22 07:26:48 INFO |    kvm_vm:1605|     -device 
isa-debugcon,chardev=seabioslog_id_20120922-072648-g6gL8thp,iobase=0x402
09/22 07:26:48 INFO |    kvm_vm:1605|     -device ich9-usb-uhci1,id=usb1
09/22 07:26:48 INFO |    kvm_vm:1605|     -drive 
file='/tmp/kvm_autotest_root/images/rhel62-64.qcow2',if=none,cache=none,id=virtio0 

09/22 07:26:48 INFO |    kvm_vm:1605|     -device 
virtio-blk-pci,drive=virtio0
09/22 07:26:48 INFO |    kvm_vm:1605|     -device 
virtio-net-pci,netdev=idSld9kt,mac='9a:4b:4c:4d:4e:4f',id='idFBA7Vj'
09/22 07:26:48 INFO |    kvm_vm:1605|     -netdev tap,id=idSld9kt,fd=45
09/22 07:26:48 INFO |    kvm_vm:1605|     -m 2048
09/22 07:26:48 INFO |    kvm_vm:1605|     -smp 
2,cores=1,threads=1,sockets=2
09/22 07:26:48 INFO |    kvm_vm:1605|     -device 
usb-tablet,id=usb-tablet1,bus=usb1.0,port=1
09/22 07:26:48 INFO |    kvm_vm:1605|     -vnc :1
09/22 07:26:48 INFO |    kvm_vm:1605|     -vga std
09/22 07:26:48 INFO |    kvm_vm:1605|     -rtc 
base=utc,clock=host,driftfix=none
09/22 07:26:48 INFO |    kvm_vm:1605|     -boot order=cdn,once=c,menu=off
09/22 07:26:48 INFO |    kvm_vm:1605|     -enable-kvm
09/22 07:26:48 INFO |    kvm_vm:1605|     -enable-kvm
09/22 07:26:48 INFO |    kvm_vm:1605|     -incoming "fd:43"

Then the state starts to be transferred:

09/22 07:26:50 INFO |    kvm_vm:2348| Migrating to fd:migfd_44_1348313208
09/22 07:26:50 DEBUG|kvm_monito:0177| (monitor humanmonitor1) Sending 
command 'migrate -d fd:migfd_44_1348313208'
09/22 07:26:52 DEBUG|virt_utils:1537| Waiting for migration to complete 
(2.001432 secs)
09/22 07:26:52 DEBUG|kvm_monito:0177| (monitor humanmonitor1) Sending 
command 'info migrate'
09/22 07:26:52 DEBUG|kvm_monito:0316| (monitor humanmonitor1) Response 
to 'info migrate'
09/22 07:26:52 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
capabilities: xbzrle: off
09/22 07:26:52 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
Migration status: active
09/22 07:26:52 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    total 
time: 2060 milliseconds
09/22 07:26:52 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
transferred ram: 62363 kbytes
09/22 07:26:52 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
remaining ram: 1873896 kbytes
09/22 07:26:52 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    total 
ram: 2113920 kbytes
09/22 07:26:52 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
duplicate: 44426 pages
09/22 07:26:52 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    normal: 
15580 pages
09/22 07:26:52 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    normal 
bytes: 62320 kbytes
09/22 07:26:54 DEBUG|virt_utils:1537| Waiting for migration to complete 
(4.053059 secs)
09/22 07:26:54 DEBUG|kvm_monito:0177| (monitor humanmonitor1) Sending 
command 'info migrate'
09/22 07:26:54 DEBUG|kvm_monito:0316| (monitor humanmonitor1) Response 
to 'info migrate'
09/22 07:26:54 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
capabilities: xbzrle: off
09/22 07:26:54 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
Migration status: active
09/22 07:26:54 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    total 
time: 4066 milliseconds
09/22 07:26:54 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
transferred ram: 75414 kbytes
09/22 07:26:54 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
remaining ram: 817052 kbytes
09/22 07:26:54 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    total 
ram: 2113920 kbytes
09/22 07:26:54 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
duplicate: 305439 pages
09/22 07:26:54 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    normal: 
18779 pages
09/22 07:26:54 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    normal 
bytes: 75116 kbytes
09/22 07:26:56 DEBUG|virt_utils:1537| Waiting for migration to complete 
(6.058427 secs)
09/22 07:26:56 DEBUG|kvm_monito:0177| (monitor humanmonitor1) Sending 
command 'info migrate'
09/22 07:26:56 DEBUG|kvm_monito:0316| (monitor humanmonitor1) Response 
to 'info migrate'
09/22 07:26:56 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
capabilities: xbzrle: off
09/22 07:26:56 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
Migration status: active
09/22 07:26:56 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    total 
time: 6071 milliseconds
09/22 07:26:56 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
transferred ram: 104012 kbytes
09/22 07:26:56 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
remaining ram: 272960 kbytes
09/22 07:26:56 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    total 
ram: 2113920 kbytes
09/22 07:26:56 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
duplicate: 434349 pages
09/22 07:26:56 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    normal: 
25897 pages
09/22 07:26:56 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    normal 
bytes: 103588 kbytes
09/22 07:26:58 DEBUG|virt_utils:1537| Waiting for migration to complete 
(8.063601 secs)
09/22 07:26:58 DEBUG|kvm_monito:0177| (monitor humanmonitor1) Sending 
command 'info migrate'
09/22 07:26:58 DEBUG|kvm_monito:0316| (monitor humanmonitor1) Response 
to 'info migrate'
09/22 07:26:58 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
capabilities: xbzrle: off
09/22 07:26:58 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
Migration status: active
09/22 07:26:58 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    total 
time: 8076 milliseconds
09/22 07:26:58 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
transferred ram: 178196 kbytes
09/22 07:26:58 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
remaining ram: 198380 kbytes
09/22 07:26:58 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    total 
ram: 2113920 kbytes
09/22 07:26:58 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
duplicate: 434450 pages
09/22 07:26:58 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    normal: 
44443 pages
09/22 07:26:58 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    normal 
bytes: 177772 kbytes
09/22 07:27:00 DEBUG|virt_utils:1537| Waiting for migration to complete 
(10.068405 secs)
09/22 07:27:00 DEBUG|kvm_monito:0177| (monitor humanmonitor1) Sending 
command 'info migrate'
09/22 07:27:00 DEBUG|kvm_monito:0316| (monitor humanmonitor1) Response 
to 'info migrate'
09/22 07:27:00 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
capabilities: xbzrle: off
09/22 07:27:00 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
Migration status: active
09/22 07:27:00 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    total 
time: 10083 milliseconds
09/22 07:27:00 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
transferred ram: 263581 kbytes
09/22 07:27:00 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
remaining ram: 109596 kbytes
09/22 07:27:00 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    total 
ram: 2113920 kbytes
09/22 07:27:00 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
duplicate: 435357 pages
09/22 07:27:00 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    normal: 
65789 pages
09/22 07:27:00 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    normal 
bytes: 263156 kbytes
09/22 07:27:02 DEBUG|virt_utils:1537| Waiting for migration to complete 
(12.074452 secs)
09/22 07:27:02 DEBUG|kvm_monito:0177| (monitor humanmonitor1) Sending 
command 'info migrate'
09/22 07:27:02 DEBUG|kvm_monito:0316| (monitor humanmonitor1) Response 
to 'info migrate'
09/22 07:27:02 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
capabilities: xbzrle: off
09/22 07:27:02 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
Migration status: active
09/22 07:27:02 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    total 
time: 12088 milliseconds
09/22 07:27:02 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
transferred ram: 348521 kbytes
09/22 07:27:02 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
remaining ram: 62564 kbytes
09/22 07:27:02 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    total 
ram: 2113920 kbytes
09/22 07:27:02 DEBUG|kvm_monito:0318| (monitor humanmonitor1) 
duplicate: 439474 pages
09/22 07:27:02 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    normal: 
87023 pages
09/22 07:27:02 DEBUG|kvm_monito:0318| (monitor humanmonitor1)    normal 
bytes: 348092 kbytes
09/22 07:27:02 INFO |   aexpect:0786| [qemu output] qemu: VQ 0 size 0x80 
Guest index 0x2d3 inconsistent with Host index 0x8: delta 0x2cb
09/22 07:27:02 INFO |   aexpect:0786| [qemu output] qemu: warning: error 
while loading state for instance 0x0 of device '0000:00:04.0/virtio-blk'
09/22 07:27:02 INFO |   aexpect:0786| [qemu output] load of migration failed
09/22 07:27:02 INFO |   aexpect:0786| [qemu output] (Process terminated 
with status 0)

So at some point qemu throws this message and exits cleanly. I did 
notice we're adding -enable-kvm twice, will fix it, though I doubt it's 
the source of the problem.

Regards,

Lucas

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2012-09-25 13:17 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2012-09-20 16:51 [Qemu-devel] qemu.git/qemu-kvm.git bugs during migrate + reboot Lucas Meneghel Rodrigues
2012-09-25 12:59 ` Anthony Liguori
2012-09-25 13:17   ` Lucas Meneghel Rodrigues

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