Messages in this thread Patch in this message | | | Date | Sun, 08 Sep 2013 11:13:57 -0400 | From | Steven Rostedt <> | Subject | [PATCH RT 02/19] x86/mce: fix mce timer interval |
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From: Mike Galbraith <bitbucket@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-rt@vger.kernel.org Signed-off-by: Mike Galbraith <bitbucket@online.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> [bigeasy: use ULL instead of u64 cast] Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> --- arch/x86/kernel/cpu/mcheck/mce.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index e31ea90..339bb4d0 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1649,7 +1649,7 @@ static void __mcheck_cpu_init_timer(void) __this_cpu_write(mce_next_interval, iv); if (!iv) return; - hrtimer_start_range_ns(t, ns_to_ktime(jiffies_to_usecs(iv) * 1000), + hrtimer_start_range_ns(t, ns_to_ktime(jiffies_to_usecs(iv) * 1000ULL), 0, HRTIMER_MODE_REL_PINNED); } -- 1.7.10.4
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