Messages in this thread Patch in this message |  | | | Date | Thu, 04 Feb 2010 09:12:22 -0800 | | From | Greg KH <> | | Subject | [51/74] oprofile/x86: fix crash when profiling more than 28 events |
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2.6.32-stable review patch. If anyone has any objections, please let us know.
------------------ From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
commit d8cc108f4fab42b380c6b3f3356f99e8dd5372e2 upstream.
With multiplexing enabled oprofile crashs when profiling more than 28 events. This patch fixes this.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- arch/x86/oprofile/nmi_int.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/x86/oprofile/nmi_int.c +++ b/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;
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