Re: [Qemu-devel] [PATCH] Migration: Add i82801b11 migration data

[Dr. David Alan Gilbert]

* Peter Maydell (address@hidden) wrote:
> On 4 April 2016 at 17:14, Marcel Apfelbaum <address@hidden> wrote:
> > On 04/04/2016 06:54 PM, Dr. David Alan Gilbert (git) wrote:
> >>
> >> From: "Dr. David Alan Gilbert" <address@hidden>
> >>
> >> The i82801b11 bridge didn't have a vmsd and thus didn't send
> >> any migration data, including that of its parent PCIBridge object.
> >> The symptom being if the guest used any devices behind the bridge
> >> the guest crashed (mostly with various interrupt related issues).
> >>
> >> Note: This will cause migration from old qemus that used this device to
> >> explicitly fail during migration as opposed to the guest crashing.
> 
> > If this patch was enough we got lucky :)
> > Is not too late to make it to 2.6, right?
> 
> You should add a line to
> http://wiki.qemu.org/Planning/2.6#Known_issues
> for things you think should be fixed for 2.6...

It would be nice for it to be in 2.6, however it's not actually
a 2.6 regression, it's been broken forever, but the difference
is that libvirt started using that bridge for q35 recently.

Dave

> thanks
> -- PMM
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK