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Message-ID: <alpine.DEB.2.00.0907241533540.29550@gandalf.stny.rr.com>
Date: Fri, 24 Jul 2009 15:35:37 -0400 (EDT)
From: Steven Rostedt <rostedt@...dmis.org>
To: LKML <linux-kernel@...r.kernel.org>
cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
Frederic Weisbecker <fweisbec@...il.com>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH][GIT PULL] trace: stop tracer in oops_enter()
Ingo or Thomas,
This is on top of the previous pull requests I made for 31.
Please pull the latest tip/tracing/urgent-2 tree, which can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace.git
tip/tracing/urgent-2
Thomas Gleixner (1):
trace: stop tracer in oops_enter()
----
kernel/panic.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
---------------------------
commit bdff78707f3ce47e891f3201c9666122a70556ce
Author: Thomas Gleixner <tglx@...utronix.de>
Date: Fri Jul 24 15:30:45 2009 -0400
trace: stop tracer in oops_enter()
If trace_printk_on_oops is set we lose interesting trace information
when the tracer is enabled across oops handling and printing. We want
the trace which might give us information _WHY_ we oopsed.
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
diff --git a/kernel/panic.c b/kernel/panic.c
index 984b3ec..512ab73 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -301,6 +301,7 @@ int oops_may_print(void)
*/
void oops_enter(void)
{
+ tracing_off();
/* can't trust the integrity of the kernel anymore: */
debug_locks_off();
do_oops_enter_exit();
--
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