linux-kernel - [tip:tracing/ftrace] tracing: keep the tracing buffer after self-test failure

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Date:	Sun, 22 Mar 2009 14:19:55 GMT
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	fweisbec@...il.com, rostedt@...dmis.org, tglx@...utronix.de,
	mingo@...e.hu
Subject: [tip:tracing/ftrace] tracing: keep the tracing buffer after self-test failure

Commit-ID:  0cf53ff62b3e9e491ff5e5f05b193fb6ce643047
Gitweb:     http://git.kernel.org/tip/0cf53ff62b3e9e491ff5e5f05b193fb6ce643047
Author:     Frederic Weisbecker <fweisbec@...il.com>
AuthorDate: Sun, 22 Mar 2009 15:13:07 +0100
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Sun, 22 Mar 2009 15:17:21 +0100

tracing: keep the tracing buffer after self-test failure

Instead of using ftrace_dump_on_oops, it's far more convenient
to have the trace leading up to a self-test failure available
in /debug/tracing/trace.

Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
LKML-Reference: <1237694675-23509-1-git-send-email-fweisbec@...il.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 kernel/trace/trace_selftest.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index b56dcf7..08f4eb2 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -299,7 +299,7 @@ trace_selftest_startup_function_graph(struct tracer *trace,
 
 	/* Have we just recovered from a hang? */
 	if (graph_hang_thresh > GRAPH_MAX_FUNC_TEST) {
-		trace->reset(tr);
+		tracing_selftest_disabled = true;
 		ret = -1;
 		goto out;
 	}
--
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