Re: [Qemu-devel] [PATCH 0/3] dataplane: virtio-blk live migration with x-data-plane=on

2013-07-23 Thread Stefan Hajnoczi
On Fri, Jul 19, 2013 at 01:33:12PM +0800, yinyin wrote: I use systemtap to test this patch,the migration will success. But I found the dataplane will start again after migration start. the virtio_blk_handle_output will start dataplane. Hi Yin Yin, Thank you for testing the patch. It

Re: [Qemu-devel] [PATCH 0/3] dataplane: virtio-blk live migration with x-data-plane=on

2013-07-23 Thread yinyin
Hi, Stefan: during the migration, the source, not the destination, will start dataplane again I think the process of migration with dataplane as follows: 1. migration begin to start 2. the migration source stop the dataplane 3. do migration ... 4. migration completed, the

Re: [Qemu-devel] [PATCH 0/3] dataplane: virtio-blk live migration with x-data-plane=on

2013-07-23 Thread Andreas Färber
Hi, Am 23.07.2013 11:19, schrieb yinyin: Hi, Stefan: during the migration, the source, not the destination, will start dataplane again I think the process of migration with dataplane as follows: 1. migration begin to start 2. the migration source stop the dataplane 3. do

Re: [Qemu-devel] [PATCH 0/3] dataplane: virtio-blk live migration with x-data-plane=on

2013-07-23 Thread yinyin
Hi, 在 2013-7-23,下午5:30,Andreas Färber afaer...@suse.de 写道: Hi, Am 23.07.2013 11:19, schrieb yinyin: Hi, Stefan: during the migration, the source, not the destination, will start dataplane again I think the process of migration with dataplane as follows: 1. migration begin

Re: [Qemu-devel] [PATCH 0/3] dataplane: virtio-blk live migration with x-data-plane=on

2013-07-23 Thread Andreas Färber
Am 23.07.2013 11:43, schrieb yinyin: 在 2013-7-23,下午5:30,Andreas Färber afaer...@suse.de 写道: Am 23.07.2013 11:19, schrieb yinyin: during the migration, the source, not the destination, will start dataplane again I think the process of migration with dataplane as follows: 1.

Re: [Qemu-devel] [PATCH 0/3] dataplane: virtio-blk live migration with x-data-plane=on

2013-07-23 Thread Stefan Hajnoczi
On Tue, Jul 23, 2013 at 11:19 AM, yinyin yin@cs2c.com.cn wrote: during the migration, the source, not the destination, will start dataplane again Thanks for explaining. The backtrace you posted is harmless. The code is written to work like this. I have annotated it

Re: [Qemu-devel] [PATCH 0/3] dataplane: virtio-blk live migration with x-data-plane=on

2013-07-19 Thread yinyin
hi, stefan: I use systemtap to test this patch,the migration will success. But I found the dataplane will start again after migration start. the virtio_blk_handle_output will start dataplane. virtio_blk_data_plane_stop pid:29037 tid:29037 0x6680fe :

[Qemu-devel] [PATCH 0/3] dataplane: virtio-blk live migration with x-data-plane=on

2013-07-17 Thread Stefan Hajnoczi
These patches add live migration support to -device virtio-blk-pci,x-data-plane=on. Patch 1 has already been posted and merged into the block tree. I have included it for convenience. Patches 2 3 implement a switch from dataplane mode back to regular virtio-blk mode when migration starts.