2.6 SMP support for dual G4 Xserve. Is there any?

[jack <lists@qnorth.net>]

Hi All,

I'm running a vanilla 2.6.13.4 kernel on a Dual G4 Xserve which compiled 
fine (with one processor). I didn't notice any SMP options in menuconfig 
on the first compile. I tried manually enabling CONFIG_SMP=y in my 
.config and it throws this error whe compiling.

Does the 2.6 kernel support dual ppc processors?

------ CUT -----------------------------------------------------------
  CC      lib/rbtree.o
  CC      lib/rwsem.o
  CC      lib/sha1.o
  CC      lib/string.o
  CC      lib/vsprintf.o
  AR      lib/lib.a
  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
drivers/built-in.o(.text+0x6f25c): In function `do_fd_request':
: undefined reference to `sti'
drivers/built-in.o(.text+0x6f410): In function `set_timeout':
: undefined reference to `save_flags'
drivers/built-in.o(.text+0x6f418): In function `set_timeout':
: undefined reference to `cli'
drivers/built-in.o(.text+0x6f458): In function `set_timeout':
: undefined reference to `restore_flags'
drivers/built-in.o(.text+0x70228): In function `grab_drive':
: undefined reference to `save_flags'
drivers/built-in.o(.text+0x7022c): In function `grab_drive':
: undefined reference to `cli'
drivers/built-in.o(.text+0x70290): In function `grab_drive':
: undefined reference to `restore_flags'
drivers/built-in.o(.text+0x702c4): In function `grab_drive':
: undefined reference to `restore_flags'
drivers/built-in.o(.text+0x702e8): In function `release_drive':
: undefined reference to `save_flags'
drivers/built-in.o(.text+0x702ec): In function `release_drive':
: undefined reference to `cli'
drivers/built-in.o(.text+0x70304): In function `release_drive':
: undefined reference to `restore_flags'
make[1]: *** [.tmp_vmlinux1] Error 1
make[1]: Leaving directory `/usr/src/linux-2.6.13.4'
make: *** [stamp-build] Error 2
host:/usr/src/linux-2.6.13.4#
----------------------------------------------------------------

...any help appreciated!
Thanks!