Re: uvm_fault with -current XEN3_DOMU

[Christoph Egger <Christoph_Egger%gmx.de@localhost>]

On Thursday 15 May 2008 10:18:15 Manuel Bouyer wrote:
> On Thu, May 15, 2008 at 11:45:54AM +1200, Mark Davies wrote:
> > Trying to run an i386 XEN3_DOMU kernel from this morning results in an
> > immediate uvm_fault:
> >
> > green-mountain# xm create -c homepages
> > Using config file "/etc/xen/homepages".
> > Started domain homepages
> >  MAC address 00:16:3e:00:00:11
> > unknown type console at xenbus0 id 0 not configured
> > uvm_fault(0xc04b1d00, 0, 1) -> 0xe
> > kernel: supervisor trap page fault, code=0
> > Stopped in pid 0.2 (system) at  0:      invalid address
> > db> bt
> > uvm_fault(0xc04b1d00, 0, 1) -> 0xe
> > kernel: supervisor trap page fault, code=0
> > Faulted in DDB; continuing...
> > db>
>
> I've seen this too. It's probably calling a NULL function pointer.
> I've not had a chance to look at this more closely yet.

From a rough look into this, this seems to be an interrupt problem.
The problem is not DomU specific. It also happens on Dom0 -current.

Christoph