[PATCH 24/31] x86: MCE: Don't print backtrace on machine checks with DEBUG_BUGVERBOSE

[Andi Kleen]

From: Andi Kleen <ak@xxxxxxxxxxxxxxx>

CONFIG_DEBUG_BUGVERBOSE prints backtraces on panics, but we don't
want that on machine checks because these are not kernel bugs.
So disable it here.

Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
---
 kernel/panic.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/kernel/panic.c b/kernel/panic.c
index 984b3ec..fa3b607 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -71,7 +71,8 @@ NORET_TYPE void panic(const char * fmt, ...)
 	va_end(args);
 	printk(KERN_EMERG "Kernel panic - not syncing: %s\n",buf);
 #ifdef CONFIG_DEBUG_BUGVERBOSE
-	dump_stack();
+	if (!strstr(fmt, "Machine check"))
+		dump_stack();
 #endif
 
 	/*
-- 
1.6.0.2

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