Re: [Xen-devel] Re: [PATCH 00 of 36] x86/paravirt: groundwork for 64-bit Xen support

[Ingo Molnar <mingo@xxxxxxx>]

* Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:

>> config and full log can be found at:
>>
>>  http://redhat.com/~mingo/misc/config-Mon_Jun_30_11_11_51_CEST_2008.bad
>>   
>
> That config doesn't build for me.  When I put it in place and do "make 
> oldconfig" it still asks for lots of config options (which I just set 
> to default).  But when I build it fails with:

try 'make ARCH=i386 oldconfig' - does it work better that way?

> include2/asm/page_64.h:46:2: error: #error "CONFIG_PHYSICAL_START must be a 
> multiple of 2MB"
> make[3]: *** [arch/x86/kernel/asm-offsets.s] Error 1
>
> I can fix that, of course, but it doesn't give me confidence I'm 
> testing what you are...

the problem there is that the 32-bit config has:

CONFIG_PHYSICAL_START=0x100000

which the 64-bit make oldconfig picked up, but that start address is not 
valid on 64-bit.

        Ingo

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