Re: [Xen-devel] Daily Xen Build

[David F Barrera <dfbp@xxxxxxxxxx>]

Keir Fraser wrote:

> > On 24 Aug 2005, at 17:51, David F Barrera wrote:
> >
> >    
> >
> > > > and the one that prevented you booting x86/64 domUs.
> > > >        
> > > I can't verify this since I can't boot Dom0 on x86_64, bugzilla #187
> > > (new).
> > >      
> > Weird - I can't reporoduce this myself, even though my test box has a 
> > tg3 (and it looks like tg3 initialisation is what's causing the crash).
> > I'll see if I can kick the kernel around some more tomorrow and get the 
> > behaviour you observe.
> >    
> Can you try adding some tracing to __ioremap() and is_local_lowmem()
> in arch/xen/i386/mm/ioremap.c.
>  
Should this be in arch/xen/*x86_64*/mm/ioremap.c. ?

> In __ioremap() there is a section in the middle that is conditional on
> is_local_lowmem(phys_addr). Add a printk in there to see if we execute
> that conditional code.
>
> If we do, it would be interesting to instrument
> is_local_lowmem(). Add something like this:
> printk(KERN_ALERT " *** %lx %lx %lx %x\n",
>        mfn, pfn, max_low_pfn, phys_to_machine_mapping[pfn]);
>
> -- Keir
>
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>  
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