[Qemu-devel] qemu-2.2.0: Unknown savevm section type 5

[Qemu-devel] qemu-2.2.0: Unknown savevm section type 5

[Peter Lieven]

Hi,

I have a Windows system which fails to migrate with this error almost reliably when migrating
from one host to another (both qemu-2.2.0). The error seems to be gone in master, but I was
unable to track the exact fix down yet. It seems that the error is related to the amount of
memory. 4G and 8G seem to fail. 3G and 6G seem to work.

Any hints?

Commandline:

x86_64-softmmu/qemu-system-x86_64 -enable-kvm -monitor stdio -M pc-i440fx-2.1   -nodefaults  -device virtio-net-pci,mac=52:54:00:ff:09:7a  -global virtio-blk-pci.scsi=off  -serial null  -parallel null -smp 2,sockets=1,cores=2,threads=1   -name 
'Speedtest'  -boot order=c,menu=off  -drive index=2,media=cdrom,if=ide,cache=unsafe,aio=native,readonly=on  -k de   -rtc base=localtime,driftfix=slew -vga vmware  -usb -usbdevice tablet -no-hpet -mem-path /hugepages -mem-prealloc -drive 
format=raw,discard=on,detect-zeroes=unmap,file=iscsi://172.21.200.56/iqn.2001-05.com.equallogic:0-8a0906-765384e0a-a3c0056cd0354d07-test-hd0/0,if=virtio,cache=writeback,aio=native

Thanks,
Peter

Re: [Qemu-devel] qemu-2.2.0: Unknown savevm section type 5

[Paolo Bonzini]

On 12/02/2015 14:20, Peter Lieven wrote:
> 
> 
> I have a Windows system which fails to migrate with this error almost
> reliably when migrating
> from one host to another (both qemu-2.2.0). The error seems to be gone
> in master, but I was
> unable to track the exact fix down yet. It seems that the error is
> related to the amount of
> memory. 4G and 8G seem to fail. 3G and 6G seem to work.

It's probably this patch:
http://permalink.gmane.org/gmane.comp.emulators.qemu/317971

Paolo

Re: [Qemu-devel] qemu-2.2.0: Unknown savevm section type 5

[Peter Lieven]

Am 12.02.2015 um 14:24 schrieb Paolo Bonzini:
>
> On 12/02/2015 14:20, Peter Lieven wrote:
>>
>> I have a Windows system which fails to migrate with this error almost
>> reliably when migrating
>> from one host to another (both qemu-2.2.0). The error seems to be gone
>> in master, but I was
>> unable to track the exact fix down yet. It seems that the error is
>> related to the amount of
>> memory. 4G and 8G seem to fail. 3G and 6G seem to work.
> It's probably this patch:
> http://permalink.gmane.org/gmane.comp.emulators.qemu/317971

That seems to have solved it. Thank you for the pointer.

Peter

Re: [Qemu-devel] qemu-2.2.0: Unknown savevm section type 5

[Juan Quintela]

Paolo Bonzini <pbonzini@redhat.com> wrote:
> On 12/02/2015 14:20, Peter Lieven wrote:
>> 
>> 
>> I have a Windows system which fails to migrate with this error almost
>> reliably when migrating
>> from one host to another (both qemu-2.2.0). The error seems to be gone
>> in master, but I was
>> unable to track the exact fix down yet. It seems that the error is
>> related to the amount of
>> memory. 4G and 8G seem to fail. 3G and 6G seem to work.
>
> It's probably this patch:
> http://permalink.gmane.org/gmane.comp.emulators.qemu/317971

Good catch.

Later, Juan.

Re: [Qemu-devel] qemu-2.2.0: Unknown savevm section type 5

[Peter Lieven]

> Am 12.02.2015 um 18:53 schrieb Juan Quintela <quintela@redhat.com>:
> 
> Paolo Bonzini <pbonzini@redhat.com> wrote:
>>> On 12/02/2015 14:20, Peter Lieven wrote:
>>> 
>>> 
>>> I have a Windows system which fails to migrate with this error almost
>>> reliably when migrating
>>> from one host to another (both qemu-2.2.0). The error seems to be gone
>>> in master, but I was
>>> unable to track the exact fix down yet. It seems that the error is
>>> related to the amount of
>>> memory. 4G and 8G seem to fail. 3G and 6G seem to work.
>> 
>> It's probably this patch:
>> http://permalink.gmane.org/gmane.comp.emulators.qemu/317971
> 
> Good catch.

Has this gone to qemu-stable?
it should be in 2.2.1 if there will be such a Release?!

Peter

> 
> Later, Juan.

Re: [Qemu-devel] qemu-2.2.0: Unknown savevm section type 5

[Paolo Bonzini]

> Has this gone to qemu-stable?
> it should be in 2.2.1 if there will be such a Release?!

It was not CCed, I'll forward it.

Paolo

Re: [Qemu-devel] qemu-2.2.0: Unknown savevm section type 5

[Peter Lieven]

> Am 12.02.2015 um 21:45 schrieb Paolo Bonzini <pbonzini@redhat.com>:
> 
> 
> 
>> Has this gone to qemu-stable?
>> it should be in 2.2.1 if there will be such a Release?!
> 
> It was not CCed, I'll forward it.
> 

thanks! do you know if there is a 2.2.1 planned?

Peter 

> Paolo