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Re: [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost
From: |
Igor Mammedov |
Subject: |
Re: [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost region merge |
Date: |
Wed, 19 Jul 2017 09:50:58 +0200 |
On Wed, 19 Jul 2017 23:17:32 +0800
Peng Hao <address@hidden> wrote:
> When a guest that has several hotplugged dimms is migrated, in
> destination host it will fail to resume. Because vhost regions of
> several dimms in source host are merged and in the restore stage
> in destination host it computes whether more than vhost slot limit
> before merging vhost regions of several dimms.
could you provide a bit more detailed description of the problem
including command line+used device_add commands on source and
command line on destination?
>
> Signed-off-by: Peng Hao <address@hidden>
> Signed-off-by: Wang Yechao <address@hidden>
> ---
> hw/mem/pc-dimm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c
> index ea67b46..bb0fa08 100644
> --- a/hw/mem/pc-dimm.c
> +++ b/hw/mem/pc-dimm.c
> @@ -101,7 +101,7 @@ void pc_dimm_memory_plug(DeviceState *dev,
> MemoryHotplugState *hpms,
> goto out;
> }
>
> - if (!vhost_has_free_slot()) {
> + if (!vhost_has_free_slot() && runstate_is_running()) {
> error_setg(&local_err, "a used vhost backend has no free"
> " memory slots left");
> goto out;
- [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost region merge, Peng Hao, 2017/07/19
- Re: [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost region merge,
Igor Mammedov <=
- Re: [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost region merge, Dr. David Alan Gilbert, 2017/07/19
- Re: [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost region merge, Igor Mammedov, 2017/07/19
- Re: [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost region merge, Michael S. Tsirkin, 2017/07/19
- Re: [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost region merge, Dr. David Alan Gilbert, 2017/07/20
- Re: [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost region merge, Michael S. Tsirkin, 2017/07/21
- Re: [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost region merge, Dr. David Alan Gilbert, 2017/07/24
- Re: [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost region merge, Igor Mammedov, 2017/07/24
- Re: [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost region merge, Igor Mammedov, 2017/07/21
- Re: [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost region merge, Michael S. Tsirkin, 2017/07/21
- Re: [Qemu-devel] [PATCH] vhost: fix a migration failed because of vhost region merge, Igor Mammedov, 2017/07/24