From 2958124e2a0e353b4f69574759f28ea47b404bcd Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Wed, 14 Dec 2011 11:03:48 +0100
Subject: HACK! make stack dumps provoked by BUG a bit more helpful
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the right fix would be to continue unwinding at the end when process is
in handler mode

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 arch/arm/kernel/process.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index a35f6ebbd2c2..d07d13fcb089 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -304,11 +304,17 @@ void __show_regs(struct pt_regs *regs)
 #endif
 }
 
+#include <asm/unwind.h>
+
 void show_regs(struct pt_regs * regs)
 {
 	printk("\n");
 	__show_regs(regs);
+#ifdef CONFIG_CPU_V7M
+	unwind_backtrace(regs, current);
+#else
 	dump_stack();
+#endif
 }
 
 ATOMIC_NOTIFIER_HEAD(thread_notify_head);
-- 
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