From a284b0518d2fe27cdde19485c8fe077a128cd827 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Bj=C3=B6rn=20Steinbrink?= Date: Sun, 22 Jul 2007 11:12:41 +0200 Subject: [PATCH] i386: Fix the K7 NMI watchdog checkbit MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The performance counters on K7 are only 48 bits wide, so using bit 63 to check if the counter overflowed is wrong. Let's use bit 47 instead. Signed-off-by: Björn Steinbrink Cc: Don Zickus Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/i386/kernel/cpu/perfctr-watchdog.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/i386/kernel/cpu/perfctr-watchdog.c b/arch/i386/kernel/cpu/perfctr-watchdog.c index 572900398def..4be488e73bee 100644 --- a/arch/i386/kernel/cpu/perfctr-watchdog.c +++ b/arch/i386/kernel/cpu/perfctr-watchdog.c @@ -325,7 +325,7 @@ static struct wd_ops k7_wd_ops = { .stop = single_msr_stop_watchdog, .perfctr = MSR_K7_PERFCTR0, .evntsel = MSR_K7_EVNTSEL0, - .checkbit = 1ULL<<63, + .checkbit = 1ULL<<47, }; /* Intel Model 6 (PPro+,P2,P3,P-M,Core1) */ -- 2.20.1