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Re: [Xen-devel] [PATCH v8 00/15] execute hotplug scripts from libxl

On Tue, 2012-07-10 at 13:23 -0400, Roger Pau Monne wrote:
> >> I'm working on making vfb/vkb async, once that is done I can take a look
> >> on this,
> > 
> > Cool. BTW is the other stuff ready? I guess it is waiting on IanJ to
> > review again?
> I've changed the series according to your comments, and I'm waiting for
> IanJ review.

BTW, an interesting enhancement might be to read
the /local/domain/0/backend/vif/23/0/hotplug-error node and print it
out. Currently with the "hotplug: vif: fail if a duplicate vifname is
used" patch that I've just posted xl continues on despite the failure.
With this series this is improved to:
        # xl cr /etc/xen//debian-x86_32p-1
        Parsing config from /etc/xen//debian-x86_32p-1
        libxl: warning: libxl_exec.c:118:libxl_report_child_exitstatus: 
/etc/xen/scripts/vif-bridge online [11939] exited with error status 1
but with xm I get:
        # xm cr /etc//xen/debian-HVM-1 
        Using config file "/etc//xen/debian-HVM-1".
        Error: Device 0 (vif) could not be connected. Cannot rename interface 
vif20.0. An interface with name foo already exists.
which is much friendlier.

Also it seems that despite xl reporting the error with you patches the
domain is still running, although without networking... If a hotplug
script fails can we abort and destroy the partially constructed domain


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