Bug Report: Live Migration - could someone help me

Bug Report: Live Migration - could someone help me

[Chen_PeterK]

Hi 

I am trying the live migration function, but meet some problem: The
guest OS was blocked (or maybe dead) on target machine.

The symptom is I can not interact with the migrated OS after operation.
I believe it's dead, because the mouse can't response and I can't not
ping it. 

Environment:
1. The image was created in format raw or qcow2 (both have been tried)
2. Migrated with TCP or SSH (both have been tried)
3. Host OS: Fedora 9 (2.6.25) 64bit OS
4. Host hardware: support Intel - VT (64bit CPU)
5. Guest OS: Ubuntu 8.04 32bit, Windows XP, Windows 2003 (all have been
tried)
6. Shared story is NFS attached.


The strange is I can do successful live migration using my friend's
image (WinXP raw format) and Tiny Linux (which don't need to install).
I think may be I do something wrong.

Could someone help me?

Many thanks!!!


Peter Chen

Bug Report: Live Migration - could someone help me

[Chen_PeterK]

Hi 

I am trying the live migration function, but meet some problem: The
guest OS was blocked (or maybe dead) on target machine.

The symptom is I can not interact with the migrated OS after operation.
I believe it's dead, because the mouse can't response and I can't not
ping it. 

Environment:
1. The image was created in format raw or qcow2 (both have been tried)
2. Migrated with TCP or SSH (both have been tried)
3. Host OS: Fedora 9 (2.6.25) 64bit OS
4. Host hardware: support Intel - VT (64bit CPU)
5. Guest OS: Ubuntu 8.04 32bit, Windows XP, Windows 2003 (all have been
tried)
6. Shared story is NFS attached.


The strange is I can do successful live migration using my friend's
image (WinXP raw format) and Tiny Linux (which don't need to install).
I think may be I do something wrong.

Could someone help me?

Many thanks!!!


Peter Chen

Re: Bug Report: Live Migration - could someone help me

[Uri Lublin]

From: kvm-owner@vger.kernel.org on behalf of Chen_PeterK@emc.com
 >I am trying the live migration function, but meet some problem: The
 >guest OS was blocked (or maybe dead) on target machine.
 >
 >The symptom is I can not interact with the migrated OS after operation.
 >I believe it's dead, because the mouse can't response and I can't not
 >ping it.
 >
 >Environment:
 >1. The image was created in format raw or qcow2 (both have been tried)
 >2. Migrated with TCP or SSH (both have been tried)
 >3. Host OS: Fedora 9 (2.6.25) 64bit OS
 >4. Host hardware: support Intel - VT (64bit CPU)
 >5. Guest OS: Ubuntu 8.04 32bit, Windows XP, Windows 2003 (all have been tried)
 >6. Shared story is NFS attached.
 >

What is the command line you are using to start qemu/kvm on the source host and 
destination host ?
What is the output of "info migration" monitor command sent to qemu/kvm running 
on the source ?

 >
 >The strange is I can do successful live migration using my friend's
 >image (WinXP raw format) and Tiny Linux (which don't need to install).
 >I think may be I do something wrong.

Is there any significant difference between your XP guest and your friend's 
guest (mainly different emulated devices) ?
What is the command line with your friend's image ?

Regards,
     Uri.

RE: Bug Report: Live Migration - could someone help me

[Chen_PeterK]

Hi  Uri:

Thank you for your response.

> What is the command line you are using to start qemu/kvm on the source host and 
> destination host ?
> What is the output of "info migration" monitor command sent to qemu/kvm running 
> on the source ?

I start my image with command: 
Source:
qemu-kvm -hda /mnt/windows.img -M pc -m 1024 -net nic -net tap,ifname=tap1,script=no -localtime
Dest:
qemu-kvm -hda /mnt/windows.img -M pc -m 1024 -net nic -net tap,ifname=tap1,script=no -localtime -incoming tcp://0:4444
PS: I also tried other commands, like: qemu-kvm -hda /mnt/windows.img -M pc -m 1024 (no network)

Then, migrate from source to destination:
migrate tcp://"IP of dest":4444

PS: if I type migrate -d tcp://"IP of dest":4444, and then "info migration".
I can see migration do happened. First, it show actived, after finishing transfering all pages, it shows inactived.

At last, the image at source become stop, and we can see the right screen shows in destination.
The strange is the vm in destination can not response. It’s dead VM.


>Is there any significant difference between your XP guest and your friend's 
>guest (mainly different emulated devices) ?
We use the same install image. I do all process in the same way.

Best regards!

Peter Chen

--------------------------------------------------------
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Shanghai, China (200433)
Tel: +86 21 60951100 * 3260

-----Original Message-----
From: Uri Lublin [mailto:uril@qumranet.com] 
Sent: 2008年7月6日 18:06
To: Chen, Peter
Cc: kvm@vger.kernel.org; Uri Lublin
Subject: Re: Bug Report: Live Migration - could someone help me

From: kvm-owner@vger.kernel.org on behalf of Chen_PeterK@emc.com
 >I am trying the live migration function, but meet some problem: The
 >guest OS was blocked (or maybe dead) on target machine.
 >
 >The symptom is I can not interact with the migrated OS after operation.
 >I believe it's dead, because the mouse can't response and I can't not
 >ping it.
 >
 >Environment:
 >1. The image was created in format raw or qcow2 (both have been tried)
 >2. Migrated with TCP or SSH (both have been tried)
 >3. Host OS: Fedora 9 (2.6.25) 64bit OS
 >4. Host hardware: support Intel - VT (64bit CPU)
 >5. Guest OS: Ubuntu 8.04 32bit, Windows XP, Windows 2003 (all have been tried)
 >6. Shared story is NFS attached.
 >

What is the command line you are using to start qemu/kvm on the source host and 
destination host ?
What is the output of "info migration" monitor command sent to qemu/kvm running 
on the source ?

 >
 >The strange is I can do successful live migration using my friend's
 >image (WinXP raw format) and Tiny Linux (which don't need to install).
 >I think may be I do something wrong.

Is there any significant difference between your XP guest and your friend's 
guest (mainly different emulated devices) ?
What is the command line with your friend's image ?

Regards,
     Uri.