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Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protoc
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation |
Date: |
Mon, 15 Apr 2013 15:30:06 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130311 Thunderbird/17.0.4 |
Il 15/04/2013 15:24, Michael R. Hines ha scritto:
> Now, in this example, let's say the migration starts up and the hypervisor
> has run out of physical memory and starts swapping during the migration.
> (also for the sake of argument).
>
> The next thing that would immediately happen is the
> next IB verbs function call: "ib_reg_mr()".
>
> This function call would probably fail because there's nothing else left
> to pin and the function call would return an error.
>
> So my question is: Is it not sufficient to send a message back to the
> primary-VM side of the connection which says:
>
> "Your migration cannot proceed anymore, please resume the VM and try
> again somewhere else".
>
> In this case, both the system administrator and the virtual machine are safe,
> nothing has been killed, nothing has crashed, and the management software
> can proceed to make a new management decision.
>
> Is there something wrong with this sequence of events?
I think it's good enough. "info migrate" will then report that
migration failed.
Paolo
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, (continued)
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/12
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael S. Tsirkin, 2013/04/14
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/14
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael S. Tsirkin, 2013/04/14
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/14
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael S. Tsirkin, 2013/04/14
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/14
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael S. Tsirkin, 2013/04/15
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Paolo Bonzini, 2013/04/15
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/15
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation,
Paolo Bonzini <=
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/15
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Paolo Bonzini, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael S. Tsirkin, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Paolo Bonzini, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael S. Tsirkin, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/11
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/12
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Paolo Bonzini, 2013/04/12
- Re: [Qemu-devel] [RFC PATCH RDMA support v5: 03/12] comprehensive protocol documentation, Michael R. Hines, 2013/04/12