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

Ingo Molnar
2008-06-30T18:13:12Z

* Jeremy Fitzhardinge <jeremy@goop.org> 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