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ftrace: disable all tracers on corrupted buffer
author
Steven Rostedt
<srostedt@redhat.com>
Mon, 12 May 2008 19:20:45 +0000
(21:20 +0200)
committer
Thomas Gleixner
<tglx@linutronix.de>
Fri, 23 May 2008 18:41:22 +0000
(20:41 +0200)
If the trace buffer is detected to be corrupted, then we
disable all tracers.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
kernel/trace/trace_selftest.c
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diff --git
a/kernel/trace/trace_selftest.c
b/kernel/trace/trace_selftest.c
index
4c8a1b2
..
a6f1ed7
100644
(file)
--- a/
kernel/trace/trace_selftest.c
+++ b/
kernel/trace/trace_selftest.c
@@
-67,6
+67,8
@@
trace_test_buffer_cpu(struct trace_array *tr, struct trace_array_cpu *data)
return 0;
failed:
+ /* disable tracing */
+ tracing_disabled = 1;
printk(KERN_CONT ".. corrupted trace buffer .. ");
return -1;
}