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Re: [Qemu-devel] [PATCH for-2.4 0/3] Migration regressions with Xen.
From: |
Anthony PERARD |
Subject: |
Re: [Qemu-devel] [PATCH for-2.4 0/3] Migration regressions with Xen. |
Date: |
Wed, 29 Jul 2015 18:54:16 +0100 |
User-agent: |
Mutt/1.5.23+102 (2ca89bed6448) (2014-03-12) |
This is a critical issue for Xen as migration either with the same version
of QEMU, or from a previous version of QEMU is broken.
Any suggestion on how to move forward?
On Tue, Jul 28, 2015 at 04:54:42PM +0100, Anthony PERARD wrote:
> Hi,
>
> We've spotted several regression which prevent migration with Xen using the
> same version of QEMU or from a previous version of QEMU (tryied with 2.2).
>
> Regression have been introduce by at least:
> - df4b1024526cae3479da3492d6371fd4a7324a03
> migration: create new section to store global state
> - 61964c23e5ddd5a33f15699e45ce126f879e3e33
> migration: Add configuration section
>
> The first patch would fix the default case when we use the machine 'xenfv'.
>
> But we can also use the machine 'pc' and I don't know how to fix this case.
> The second and third patches are a step in the direction of fixing
> migration with the machine 'pc'.
>
> I have not look at save/restore for PV guest yet.
>
> Thanks,
>
> Anthony PERARD (3):
> migration: Fix regretion for xenfv machine.
> migration: Fix global state with Xen.
> migration: Add configuration section to vmstate with xen.
>
> hw/i386/pc_piix.c | 3 +++
> include/migration/migration.h | 1 +
> migration/migration.c | 7 +++++++
> migration/savevm.c | 6 ++++++
> 4 files changed, 17 insertions(+)
--
Anthony PERARD