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| author | Björn Steinbrink <B.Steinbrink@gmx.de> | 2007-06-16 21:16:04 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-06-17 00:16:15 +0400 |
| commit | da88ba17de990a4b0d18ecde2c40355700888750 (patch) | |
| tree | 2783192afd8c7688ce5715346fafea33b185d0a4 /arch | |
| parent | 2f41dddbbd7193fb5cdae0a24db4d378d56885fd (diff) | |
| download | linux-da88ba17de990a4b0d18ecde2c40355700888750.tar.xz | |
perfctr-watchdog: fix interchanged parameters to release_{evntsel,perfctr}_nmi
Fix oops triggered during: echo 0 > /proc/sys/kernel/nmi_watchdog
The culprit seems to be 09198e68501a7e34737cd9264d266f42429abcdc:
[PATCH] i386: Clean up NMI watchdog code
In two places, the parameters to release_{evntsel,perfctr}_nmi
got interchanged during the cleanup.
Fix interchanged parameters to release_{evntsel,perfctr}_nmi.
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Cc: Stephane Eranian <eranian@hpl.hp.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/kernel/cpu/perfctr-watchdog.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/i386/kernel/cpu/perfctr-watchdog.c b/arch/i386/kernel/cpu/perfctr-watchdog.c index 98488f997da6..f0b67630b90d 100644 --- a/arch/i386/kernel/cpu/perfctr-watchdog.c +++ b/arch/i386/kernel/cpu/perfctr-watchdog.c @@ -276,8 +276,8 @@ static int single_msr_reserve(void) static void single_msr_unreserve(void) { - release_evntsel_nmi(wd_ops->perfctr); - release_perfctr_nmi(wd_ops->evntsel); + release_evntsel_nmi(wd_ops->evntsel); + release_perfctr_nmi(wd_ops->perfctr); } static void single_msr_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz) @@ -475,10 +475,10 @@ static void p4_unreserve(void) { #ifdef CONFIG_SMP if (smp_num_siblings > 1) - release_evntsel_nmi(MSR_P4_IQ_PERFCTR1); + release_perfctr_nmi(MSR_P4_IQ_PERFCTR1); #endif - release_evntsel_nmi(MSR_P4_IQ_PERFCTR0); - release_perfctr_nmi(MSR_P4_CRU_ESCR0); + release_evntsel_nmi(MSR_P4_CRU_ESCR0); + release_perfctr_nmi(MSR_P4_IQ_PERFCTR0); } static void p4_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz) |