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| author |   Björn Steinbrink <B.Steinbrink@gmx.de> | 2007-07-22 11:12:41 +0200 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-22 11:03:38 -0700 |
| commit | a284b0518d2fe27cdde19485c8fe077a128cd827 (patch) | |
| tree | ee6b9923cf1122b3f08f3bfc4074a8cef36f0d8f /arch/i386 | |
| parent | i386: Use patchable lock prefix in set_64bit (diff) | |
| download | linux-dev-a284b0518d2fe27cdde19485c8fe077a128cd827.tar.xz linux-dev-a284b0518d2fe27cdde19485c8fe077a128cd827.zip | |
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>
Diffstat (limited to 'arch/i386')
| -rw-r--r-- | arch/i386/kernel/cpu/perfctr-watchdog.c | 2 |
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) */ |