2.6.15-rc1-git4 build failure on ppc64

2.6.15-rc1-git4 build failure on ppc64

[Badari Pulavarty]

Hi Andy,

I get following compile error on PPC64 - while trying to compile
CONFIG_FLATMEM=y. 

arch/powerpc/mm/numa.c: In function `dump_numa_topology':
arch/powerpc/mm/numa.c:516: error: `SECTION_SIZE_BITS' undeclared (first
use in this function)
arch/powerpc/mm/numa.c:516: error: (Each undeclared identifier is
reported only once
arch/powerpc/mm/numa.c:516: error: for each function it appears in.)
make[1]: *** [arch/powerpc/mm/numa.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [arch/powerpc/mm] Error 2


Thanks,
Badari

Re: 2.6.15-rc1-git4 build failure on ppc64

[Andy Whitcroft]

Badari Pulavarty wrote:

> I get following compile error on PPC64 - while trying to compile
> CONFIG_FLATMEM=y. 
> 
> arch/powerpc/mm/numa.c: In function `dump_numa_topology':
> arch/powerpc/mm/numa.c:516: error: `SECTION_SIZE_BITS' undeclared (first
> use in this function)
> arch/powerpc/mm/numa.c:516: error: (Each undeclared identifier is
> reported only once
> arch/powerpc/mm/numa.c:516: error: for each function it appears in.)
> make[1]: *** [arch/powerpc/mm/numa.o] Error 1
> make[1]: *** Waiting for unfinished jobs....
> make: *** [arch/powerpc/mm] Error 2

Can you drop me a copy of your .config please.  I'll have a poke at it
in the morning.

-apw

Re: 2.6.15-rc1-git4 build failure on ppc64

[Anton Blanchard]

Hi,

> I get following compile error on PPC64 - while trying to compile
> CONFIG_FLATMEM=y. 
> 
> arch/powerpc/mm/numa.c: In function `dump_numa_topology':
> arch/powerpc/mm/numa.c:516: error: `SECTION_SIZE_BITS' undeclared (first
> use in this function)
> arch/powerpc/mm/numa.c:516: error: (Each undeclared identifier is
> reported only once
> arch/powerpc/mm/numa.c:516: error: for each function it appears in.)
> make[1]: *** [arch/powerpc/mm/numa.o] Error 1
> make[1]: *** Waiting for unfinished jobs....
> make: *** [arch/powerpc/mm] Error 2

Looks like you are trying to compile NUMA=y, FLATMEM=y which is an
illegal combination. Andy has submitted patches to fix this but in the
meantime can you either make both on or both off?

Anton

Re: 2.6.15-rc1-git4 build failure on ppc64

[Paul Mackerras]

Badari Pulavarty writes:

> I get following compile error on PPC64 - while trying to compile
> CONFIG_FLATMEM=y. 

You have CONFIG_NUMA=y.  According to Anton, NUMA + FLATMEM is an
invalid combination, but unfortunately the Kconfig doesn't enforce
that at the moment.  That is, if you want CONFIG_FLATMEM=y, you will
have to explicitly set CONFIG_NUMA=n.

Paul.

Re: 2.6.15-rc1-git4 build failure on ppc64

[Badari Pulavarty]

Paul Mackerras wrote:
> Badari Pulavarty writes:
> 
> 
>>I get following compile error on PPC64 - while trying to compile
>>CONFIG_FLATMEM=y. 
> 
> 
> You have CONFIG_NUMA=y.  According to Anton, NUMA + FLATMEM is an
> invalid combination, but unfortunately the Kconfig doesn't enforce
> that at the moment.  That is, if you want CONFIG_FLATMEM=y, you will
> have to explicitly set CONFIG_NUMA=n.
> 
> Paul.
> 

Okay. Thanks.

- Badari