Ingo Molnar wrote:
quoted text
> * Jeremy Fitzhardinge <jeremy@goop.org> wrote:
>
>   
>>> It quickly broke the build in testing:
>>>
>>>  include/asm/pgalloc.h: In function ‘paravirt_pgd_free':
>>>  include/asm/pgalloc.h:14: error: parameter name omitted
>>>  arch/x86/kernel/entry_64.S: In file included from  
>>> arch/x86/kernel/traps_64.c:51:include/asm/pgalloc.h: In function 
>>> ‘paravirt_pgd_free':
>>>  include/asm/pgalloc.h:14: error: parameter name omitted
>>>   
>>>       
>> No, looks like my fault.  The non-PARAVIRT version of  
>> paravirt_pgd_free() is:
>>
>> static inline void paravirt_pgd_free(struct mm_struct *mm, pgd_t *) {}
>>
>> but C doesn't like missing parameter names, even if unused.
>>
>> This should fix it:
>>     
>
> that fixed the build but now we've got a boot crash with this config:
>
>  time.c: Detected 2010.304 MHz processor.
>  spurious 8259A interrupt: IRQ7.
>  BUG: unable to handle kernel NULL pointer dereference at  0000000000000000
>  IP: [<0000000000000000>]
>  PGD 0
>  Thread overran stack, or stack corrupted
>  Oops: 0010 [1] SMP
>  CPU 0
>   

What stage during boot?  I'm seeing an initrd problem, but that's 
relatively late.

    J
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