From: Björn Steinbrink <[email protected]>
The Intel PerfMon NMI watchdog reserves the first performance counter,
but uses the second one. Make it correctly reserve the second one.
Signed-off-by: Björn Steinbrink <[email protected]>
Signed-off-by: Andi Kleen <[email protected]>
---
arch/i386/kernel/cpu/perfctr-watchdog.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: linux/arch/i386/kernel/cpu/perfctr-watchdog.c
===================================================================
--- linux.orig/arch/i386/kernel/cpu/perfctr-watchdog.c
+++ linux/arch/i386/kernel/cpu/perfctr-watchdog.c
@@ -599,8 +599,8 @@ static struct wd_ops intel_arch_wd_ops =
.setup = setup_intel_arch_watchdog,
.rearm = p6_rearm,
.stop = single_msr_stop_watchdog,
- .perfctr = MSR_ARCH_PERFMON_PERFCTR0,
- .evntsel = MSR_ARCH_PERFMON_EVENTSEL0,
+ .perfctr = MSR_ARCH_PERFMON_PERFCTR1,
+ .evntsel = MSR_ARCH_PERFMON_EVENTSEL1,
};
static void probe_nmi_watchdog(void)
-
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