The patch titled
oprofile/x86: fix crash when profiling more than 28 events
has been added to the -mm tree. Its filename is
oprofile-x86-fix-crash-when-profiling-more-than-28-events.patch
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------------------------------------------------------
Subject: oprofile/x86: fix crash when profiling more than 28 events
From: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>
With multiplexing enabled oprofile crashs when profiling more than 28
events. This patch fixes this.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>
Signed-off-by: Robert Richter <robert.richter@xxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: <stable@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/oprofile/nmi_int.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/x86/oprofile/nmi_int.c~oprofile-x86-fix-crash-when-profiling-more-than-28-events arch/x86/oprofile/nmi_int.c
--- a/arch/x86/oprofile/nmi_int.c~oprofile-x86-fix-crash-when-profiling-more-than-28-events
+++ a/arch/x86/oprofile/nmi_int.c
@@ -222,7 +222,7 @@ static void nmi_cpu_switch(void *dummy)
/* move to next set */
si += model->num_counters;
- if ((si > model->num_virt_counters) || (counter_config[si].count == 0))
+ if ((si >= model->num_virt_counters) || (counter_config[si].count == 0))
per_cpu(switch_index, cpu) = 0;
else
per_cpu(switch_index, cpu) = si;
_
Patches currently in -mm which might be from suravee.suthikulpanit@xxxxxxx are
oprofile-x86-fix-crash-when-profiling-more-than-28-events.patch
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