_SORRY: Forgot to attach the file in the previous mail... Summary_ Can't get linux kernel 2.5.23 to compile with success using config options in the attached file "config-2.5.23" _Full description_ When trying to compile the kernel using config options in "config-2.5.13", I get the following erros during a "make bzImage": make[1]: Entering directory `/usr/src/linux-2.5.23/kernel' gcc -Wp,-MD,./.sched.o.d -D__KERNEL__ -I/usr/src/linux-2.5.23/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -pipe -mpreferred-stack-boundary=2 -march=i686 -nostdinc -iwithprefix include -fno-omit-frame-pointer -DKBUILD_BASENAME=sched -c -o sched.o sched.c sched.c: In function `sys_sched_setaffinity': sched.c:1332: `cpu_online_map' undeclared (first use in this function) sched.c:1332: (Each undeclared identifier is reported only once sched.c:1332: for each function it appears in.) sched.c: In function `sys_sched_getaffinity': sched.c:1391: `cpu_online_map' undeclared (first use in this function) make[1]: *** [sched.o] Error 1 make[1]: Leaving directory `/usr/src/linux-2.5.23/kernel' make: *** [kernel] Error 2 _Keywords _ Compile, Kernel