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SubjectRe: [PATCH 4/6] RTC: Ratelimit "lost interrupts" message
On Wed, 23 May 2007 18:23:06 -0400
Ben Collins <bcollins@ubuntu.com> wrote:

> Signed-off-by: Ben Collins <bcollins@ubuntu.com>
> ---
> drivers/char/rtc.c | 3 ++-
> 1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
> index 20380a2..22cf7aa 100644
> --- a/drivers/char/rtc.c
> +++ b/drivers/char/rtc.c
> @@ -1159,7 +1159,8 @@ static void rtc_dropped_irq(unsigned long data)
>
> spin_unlock_irq(&rtc_lock);
>
> - printk(KERN_WARNING "rtc: lost some interrupts at %ldHz.\n", freq);
> + if (printk_ratelimit())
> + printk(KERN_WARNING "rtc: lost some interrupts at %ldHz.\n", freq);
>

Presumably someone is getting a lot of these messages.

Do we know why? Is there something which needs fixing here?
-
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