From: Mike Galbraith <bitbuc...@online.de>
Seems mce timer fire at the wrong frequency in -rt kernels since roughly
forever due to 32 bit overflow. 3.8-rt is also missing a multiplier.
Add missing us -> ns conversion and 32 bit overflow prevention.
Cc: stable...@vger.kernel.org
Signed-off-by: Mike Galbraith <bitbuc...@online.de>
Signed-off-by: Steven Rostedt <rost...@goodmis.org>
[bigeasy: use ULL instead of u64 cast]
Signed-off-by: Sebastian Andrzej Siewior <bige...@linutronix.de>
---
arch/x86/kernel/cpu/mcheck/mce.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 8ceb100..b08a373 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -1139,7 +1139,7 @@ static enum hrtimer_restart mce_start_timer(struct
hrtimer *timer)
*n = min(*n*2, round_jiffies_relative(check_interval*HZ));
hrtimer_forward(timer, timer->base->get_time(),
- ns_to_ktime(jiffies_to_usecs(*n) * 1000));
+ ns_to_ktime(jiffies_to_usecs(*n) * 1000ULL));
return HRTIMER_RESTART;
}
@@ -1435,7 +1435,7 @@ static void __mcheck_cpu_init_timer(void)
if (!*n)
return;
- hrtimer_start_range_ns(t, ns_to_ktime(jiffies_to_usecs(*n) * 1000),
+ hrtimer_start_range_ns(t, ns_to_ktime(jiffies_to_usecs(*n) * 1000ULL),
0 , HRTIMER_MODE_REL_PINNED);
}
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
