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xen-devel
RE: [Xen-devel] DOM0 falling off of network when running latest FreeBSD
> It turns out I had missed a couple of lines when updating blkfront.c &
> ctrl_if.c. Fixing the ring sizes in blkfront.c fixed the problem with
> DOM0 not getting any CPU time and fixing ctrl_if.c fixed the issue
> with device set up. Not surprisingly it was my fault, but I think that
> long term xen needs to be a little more vigorous in containing
> misbehaved guests.
It would be good to understand what was causing the problem. Backend
reconnects on one domain should not be effecting others.
Xen itself already is pretty robust to evil guest kernels, but DoS'ing
xend is rather too easy at the moment. The new tools should hopefully
fix this.
Ian
> On Sat, 12 Mar 2005 15:32:48 -0000, Ian Pratt
> <m+Ian.Pratt@xxxxxxxxxxxx> wrote:
> >
> > > Am I missing some important configuration change between
> > > -testing and -unstable?
> > >
> > > When I boot FreeBSD with a config file that works on
> -testing I see
> > > the following on the console with -unstable after which ping still
> > > succeeds but ssh hangs...
> >
> > There have been a couple of changes to the message protocal between
> > testing and unstable. Are you sure you've tracked these?
> E.g. network
> > device MTU and backend MAC configuration.
> >
> > Ian
> >
> > > [XEN] Attempting to reconnect network interface: handle=0
> > > [XEN] Netfront recovered tx=0 rxfree=0
> > > [XEN] Attempting to reconnect network interface: handle=0
> > > [XEN] Attempting to reconnect network interface: handle=0
> > > [XEN] Failed to connect all virtual interfaces: err=-50
> > > [XEN] Initialising virtual block device driver
> > >
> > >
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>
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