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Date: Mon, 25 Jan 2010 19:26:44 +0100 From: Robert Richter <robert.richter@....com> To: Ingo Molnar <mingo@...e.hu> CC: LKML <linux-kernel@...r.kernel.org>, oprofile-list <oprofile-list@...ts.sourceforge.net>, Suravee Suthikulpanit <suravee.suthikulpanit@....com>, Robert Richter <robert.richter@....com> Subject: [PATCH] oprofile/x86: fix crash when profiling more than 28 events From: Suravee Suthikulpanit <suravee.suthikulpanit@....com> With multiplexing enabled oprofile crashs when profiling more than 28 events. This patch fixes this. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@....com> Signed-off-by: Robert Richter <robert.richter@....com> --- arch/x86/oprofile/nmi_int.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index cb88b1a..76d4f56 100644 --- 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; -- 1.6.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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