[PATCH] i386: Terminate backtrace fallback early if unwinder stack po…

…inter is zero Cc: jbeulich@novell.com Signed-off-by: Andi Kleen <ak@suse.de>
git-mirror · Sep 26, 2006 · 950fee8 · 950fee8
1 parent 2b14a78
commit 950fee8
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
@@ -197,6 +197,8 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
 				if (UNW_SP(&info) >= PAGE_OFFSET) {
 					ops->warning(data, "Leftover inexact backtrace:\n");
 					stack = (void *)UNW_SP(&info);
+					if (!stack)
+						return;
 				} else
 					ops->warning(data, "Full inexact backtrace again:\n");
 			} else if (call_trace >= 1)