commit be7a91709b90825990e571b2f20cea937d5eef6c
author Andi Kleen <ak@suse.de> Tue Sep 26 10:52:34 2006 +0200
committer Andi Kleen <andi@basil.nowhere.org> Tue Sep 26 10:52:34 2006 +0200
tree fe09719e040b6d2ae535a08958f7e57f8a9babe6
parent c0b766f13d8e1189ce4d00e54700c9d96b543b9a

[PATCH] Check for end of stack trace before falling back

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

arch/x86_64/kernel/traps.c

diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c
index 4ac18b0..28e5334 100644
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -292,6 +292,8 @@
 				if ((long)UNW_SP(&info) < 0) {
 					ops->warning(data, "Leftover inexact backtrace:\n");
 					stack = (unsigned long *)UNW_SP(&info);
+					if (!stack)
+						return;
 				} else
 					ops->warning(data, "Full inexact backtrace again:\n");
 			} else if (call_trace >= 1)