Commit b2ff457b authored Jul 15, 2007 by Ben Collins Committed by Linus Torvalds Jul 16, 2007

RTC: Ratelimit "lost interrupts" message

We gets lots of these when the kernel is running on a hypervisor. Zach says
"a guest kernel trying to get high frequency RTC will also be inaccurate, and
inevitably will have unhidable interrupt lateness."

Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 45807a1d

drivers/char/rtc.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1159,6 +1159,7 @@ static void rtc_dropped_irq(unsigned long data)

		spin_unlock_irq(&rtc_lock);

		if (printk_ratelimit())
		printk(KERN_WARNING "rtc: lost some interrupts at %ldHz.\n", freq);

		/* Now we have new data */