Re: Daily Xen Build

[David F Barrera <dfbp@us.ibm.com>]

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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>  
>