From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161407AbWHEFt0 (ORCPT ); Sat, 5 Aug 2006 01:49:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161462AbWHEFt0 (ORCPT ); Sat, 5 Aug 2006 01:49:26 -0400 Received: from smtp.osdl.org ([65.172.181.4]:5766 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1161407AbWHEFtZ (ORCPT ); Sat, 5 Aug 2006 01:49:25 -0400 Date: Fri, 4 Aug 2006 22:49:13 -0700 From: Andrew Morton To: Matthias Urlichs Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH] Rate-limit the RTC 'missed interrupts' warning. Message-Id: <20060804224913.d4fb3bef.akpm@osdl.org> In-Reply-To: References: X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.17; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 5 Aug 2006 01:53:08 +0200 Matthias Urlichs wrote: > Cc: recipient list not shown: ; I'm assuming there was supposed to be a mailing list there. > Subject: [PATCH] Rate-limit the RTC 'missed interrupts' warning. > Date: Sat, 5 Aug 2006 01:53:08 +0200 > > Signed-Off-By: Matthias Urlichs > --- > 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 7cac6d0..fbd214f 100644 > --- a/drivers/char/rtc.c > +++ b/drivers/char/rtc.c > @@ -1131,7 +1131,8 @@ static void rtc_dropped_irq(unsigned lon > > 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); > > /* Now we have new data */ > wake_up_interruptible(&rtc_wait); What is causing your machine to lose so many RTC interrupts?