From 48e4d4604b7da52d6a56ddc821a460b183b7353d Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Sat, 15 Aug 2009 01:05:46 +0900 Subject: sh: stacktrace: Add reliability checks in address saving ops. This adopts the reliability checks from the x86 stacktrace code so known bad addresses are not recorded in the stack trace buffer. Signed-off-by: Paul Mundt --- arch/sh/kernel/stacktrace.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/sh') diff --git a/arch/sh/kernel/stacktrace.c b/arch/sh/kernel/stacktrace.c index 45b1adde3ab..a0f497bcbb4 100644 --- a/arch/sh/kernel/stacktrace.c +++ b/arch/sh/kernel/stacktrace.c @@ -38,6 +38,9 @@ static void save_stack_address(void *data, unsigned long addr, int reliable) { struct stack_trace *trace = data; + if (!reliable) + return; + if (trace->skip > 0) { trace->skip--; return; @@ -67,6 +70,9 @@ save_stack_address_nosched(void *data, unsigned long addr, int reliable) { struct stack_trace *trace = (struct stack_trace *)data; + if (!reliable) + return; + if (in_sched_functions(addr)) return; -- cgit v1.2.3