In file included from include/asm/mpspec.h:5,
                 from include/asm/smp.h:18,
                 from include/linux/smp.h:19,
                 from include/linux/sched.h:26,
                 from include/linux/mm.h:4,
                 from arch/i386/lib/usercopy.c:9:
include/asm/mpspec_def.h:78: warning: ‘packed’ attribute ignored for field of type ‘unsigned char[6]’
  AR      arch/i386/lib/lib.a
  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
In file included from include/asm/mpspec.h:5,
                 from include/asm/smp.h:18,
                 from include/linux/smp.h:19,
                 from include/linux/sched.h:26,
                 from include/linux/module.h:10,
                 from init/version.c:10:
include/asm/mpspec_def.h:78: warning: ‘packed’ attribute ignored for field of type ‘unsigned char[6]’
  LD      init/built-in.o
  LD      .tmp_vmlinux1
init/built-in.o: In function `try_name':
/usr/src/linux-2.6.15/init/do_mounts.c:116: undefined reference to `__stack_chk_fail'
init/built-in.o: In function `name_to_dev_t':
/usr/src/linux-2.6.15/init/do_mounts.c:207: undefined reference to `__stack_chk_fail'
init/built-in.o: In function `mount_block_root':
/usr/src/linux-2.6.15/init/do_mounts.c:317: undefined reference to `__stack_chk_fail'
init/built-in.o: In function `change_floppy':
/usr/src/linux-2.6.15/init/do_mounts.c:359: undefined reference to `__stack_chk_fail'
init/built-in.o: In function `parse_header':
/usr/src/linux-2.6.15/init/initramfs.c:108: undefined reference to `__stack_chk_fail'
arch/i386/kernel/built-in.o:/usr/src/linux-2.6.15/arch/i386/kernel/vm86.c:198: more undefined references to `__stack_chk_fail' follow
make: *** [.tmp_vmlinux1] Error 1