Hi Tony, I've kicked off IA64 build tests on a native IA64 box and the test kconfigs are: ia64-allmodconfig ia64-allnoconfig ia64-defconfig ia64-randconfig-h001 ... ia64-randconfig-h009 Only the allnoconfig and defconfig builds fine. The other ones mostly failed in two errors: 1) In file included from include/linux/kernel.h:22:0, from include/asm-generic/bug.h:13, from arch/ia64/include/asm/bug.h:12, from include/linux/bug.h:4, from include/linux/page-flags.h:9, from kernel/bounds.c:9: include/linux/printk.h:142:5: error: static declaration of 'printk' follows non-static declaration In file included from include/linux/bitops.h:22:0, from include/linux/kernel.h:19, from include/asm-generic/bug.h:13, from arch/ia64/include/asm/bug.h:12, from include/linux/bug.h:4, from include/linux/page-flags.h:9, from kernel/bounds.c:9: arch/ia64/include/asm/bitops.h:313:3: note: previous declaration of 'printk' was here 2) In file included from arch/ia64/kernel/asm-offsets.c:9:0: include/linux/sched.h: In function 'stack_not_used': include/linux/sched.h:2519:21: error: 'IA64_TASK_SIZE' undeclared (first use in this function) include/linux/sched.h:2519:21: note: each undeclared identifier is reported only once for each function it appears in include/linux/sched.h:2519:21: error: 'IA64_THREAD_INFO_SIZE' undeclared (first use in this function) 3) and one randconfig failed with lots of undefined symbols (attached). Thanks, Fengguang