Re: [Xen-devel] Problems using xl migrate

[George Dunlap <dunlapg@xxxxxxxxx>]

On Sat, Nov 22, 2014 at 7:24 PM, M A Young <m.a.young@xxxxxxxxxxxx> wrote:
> While investigating a bug reported on Red Hat Bugzilla
> https://bugzilla.redhat.com/show_bug.cgi?id=1166461
> I discovered the following
>
> xl migrate --debug domid localhost does indeed fail for Xen 4.4 pv (the bug
> report is for Xen 4.3 hvm ) when xl migrate domid localhost works. There are
> actually two issues here
>
> * the segfault in libxl-save-helper --restore-domain (as reported in the bug
> above) occurs if the guest memory is 1024M (on my 4G box) and is presumably
> because the allocated memory eventually runs out
>
> * the segfault doesn't occur if the guest memory is 128M, but the migration
> still fails. The first attached file contains the log from a run with xl -v
> migrate --debug domid localhost (with mfn and duplicated lines stripped out
> to make the size manageable).
>
> I then tried xen 4.5-rc1 to see if the bug was fixed and found that xl
> migrate doesn't work for me at all - see the second attached file for the
> output of xl -v migrate domid localhost .

Could you resend this as a separate message so we can debug it separately?

 -George

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