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Message-Id: <1323304603-27895-1-git-send-email-andi@firstfloor.org>
Date: Wed, 7 Dec 2011 16:36:43 -0800
From: Andi Kleen <andi@...stfloor.org>
To: linux-kernel@...r.kernel.org
Cc: Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH] panic: Don't print redundant backtraces on oops
From: Andi Kleen <ak@...ux.intel.com>
When an oops causes a panic and panic prints another backtrace it's
pretty common to have the original oops data be scrolled away on a 80x50
screen.
The second backtrace is quite redundant and not needed anyways.
So don't print the panic backtrace when oops_in_progress is true.
Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
kernel/panic.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/kernel/panic.c b/kernel/panic.c
index b2659360..398412b 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -78,7 +78,8 @@ 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 (!oops_in_progress)
+ dump_stack();
#endif
/*
--
1.7.4.4
--
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