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authorBjörn Steinbrink <B.Steinbrink@gmx.de>2007-07-22 11:12:41 +0200
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-22 11:03:38 -0700
commita284b0518d2fe27cdde19485c8fe077a128cd827 (patch)
treeee6b9923cf1122b3f08f3bfc4074a8cef36f0d8f
parente05aff854c9f348629bb66c191eee87e4d002900 (diff)
downloadlinux-stericsson-a284b0518d2fe27cdde19485c8fe077a128cd827.tar.gz
i386: Fix the K7 NMI watchdog checkbit
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 <B.Steinbrink@gmx.de> Cc: Don Zickus <dzickus@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/i386/kernel/cpu/perfctr-watchdog.c2
1 files changed, 1 insertions, 1 deletions
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) */