Hi Stephen, The next-20080520 kernel build fails on powerpc, when build the randconfig with build error message CC arch/powerpc/kernel/prom_init.o CALL arch/powerpc/kernel/prom_init_check.sh Error: External symbol 'kernstart_addr' referenced from prom_init.c make[1]: *** [prom_init_check] Error 1 make: *** [arch/powerpc/kernel] Error 2 -- Thanks & Regards, Kamalesh Babulal, Linux Technology Center, IBM, ISTL.