[PATCH] powerpc: fix DEBUG_PREEMPT warning when warning

Hugh Dickins hugh at veritas.com
Sat Feb 9 05:25:13 EST 2008


The powerpc show_regs prints CPU using smp_processor_id: change that to
raw_smp_processor_id, so that when it's showing a WARN_ON backtrace without
preemption disabled, DEBUG_PREEMPT doesn't mess up that warning with its own.

Signed-off-by: Hugh Dickins <hugh at veritas.com>
---

 powerpc/kernel/process.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 2.6.24-git18/arch/powerpc/kernel/process.c	2008-01-24 22:58:37.000000000 +0000
+++ linux/arch/powerpc/kernel/process.c	2008-02-08 12:01:31.000000000 +0000
@@ -462,7 +462,7 @@ void show_regs(struct pt_regs * regs)
 	       current, task_pid_nr(current), current->comm, task_thread_info(current));
 
 #ifdef CONFIG_SMP
-	printk(" CPU: %d", smp_processor_id());
+	printk(" CPU: %d", raw_smp_processor_id());
 #endif /* CONFIG_SMP */
 
 	for (i = 0;  i < 32;  i++) {



More information about the Linuxppc-dev mailing list