* [PATCH] powerpc/perf_counter: Log invalid data addresses as all 1s
@ 2009-09-22 2:56 Anton Blanchard
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From: Anton Blanchard @ 2009-09-22 2:56 UTC (permalink / raw)
To: paulus, benh, a.p.zijlstra, mingo; +Cc: linuxppc-dev
When we take an exception and the SDAR isn't synchronised we currently
log 0 as the address. Unfortunately this is a pretty common value, so
use ~OUL instead.
Signed-off-by: Anton Blanchard <anton@samba.org>
---
Index: linux.trees.git/arch/powerpc/kernel/perf_event.c
===================================================================
--- linux.trees.git.orig/arch/powerpc/kernel/perf_event.c 2009-09-22 11:54:32.000000000 +1000
+++ linux.trees.git/arch/powerpc/kernel/perf_event.c 2009-09-22 11:59:33.000000000 +1000
@@ -1162,7 +1162,7 @@ static void record_and_restart(struct pe
*/
if (record) {
struct perf_sample_data data = {
- .addr = 0,
+ .addr = ~0ULL,
.period = event->hw.last_period,
};
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2009-09-22 2:56 [PATCH] powerpc/perf_counter: Log invalid data addresses as all 1s Anton Blanchard
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