[PATCH] [9/20] x86: Don't use oops_begin in 64bit mce code

Andi Kleen
2008-01-03T00:52:53Z

It is not really useful to lock machine checks against oopses. And
machine checks normally don't nest, so they don't need their
own locking. Just call bust_spinlock/console_verbose directly.

Signed-off-by: Andi Kleen <ak@suse.de>

---
arch/x86/kernel/cpu/mcheck/mce_64.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux/arch/x86/kernel/cpu/mcheck/mce_64.c
===================================================================
--- linux.orig/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ linux/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -133,7 +133,8 @@ static void mce_panic(char *msg, struct
{
int i;

- oops_begin();
+ console_verbose();
+ bust_spinlocks(1);
for (i = 0; i < MCE_LOG_LEN; i++) {
unsigned long tsc = mcelog.entry[i].tsc;