From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-lb0-f174.google.com ([209.85.217.174]:58732 "EHLO mail-lb0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754283Ab2HNXvr (ORCPT ); Tue, 14 Aug 2012 19:51:47 -0400 Received: by lbbgj3 with SMTP id gj3so565590lbb.19 for ; Tue, 14 Aug 2012 16:51:46 -0700 (PDT) Message-ID: <502AE483.6000001@iki.fi> Date: Wed, 15 Aug 2012 02:51:31 +0300 From: Antti Palosaari MIME-Version: 1.0 To: htl10@users.sourceforge.net CC: linux-media@vger.kernel.org Subject: Re: small regression in mediatree/for_v3.7-3 - media_build References: <1344987576.21425.YahooMailClassic@web29406.mail.ird.yahoo.com> In-Reply-To: <1344987576.21425.YahooMailClassic@web29406.mail.ird.yahoo.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On 08/15/2012 02:39 AM, Hin-Tak Leung wrote: > There seems to be a small regression on mediatree/for_v3.7-3 > - dmesg/klog get flooded with these: > > [201145.140260] dvb_frontend_poll: 15 callbacks suppressed > [201145.586405] usb_urb_complete: 88 callbacks suppressed > [201150.587308] usb_urb_complete: 3456 callbacks suppressed > > [201468.630197] usb_urb_complete: 3315 callbacks suppressed > [201473.632978] usb_urb_complete: 3529 callbacks suppressed > [201478.635400] usb_urb_complete: 3574 callbacks suppressed > > It seems to be every 5 seconds, but I think that's just klog skipping repeats and collapsing duplicate entries. This does not happen the last time I tried playing with the TV stick :-). That's because you has dynamic debugs enabled! modprobe dvb_core; echo -n 'module dvb_core +p' > /sys/kernel/debug/dynamic_debug/control modprobe dvb_usbv2; echo -n 'module dvb_usbv2 +p' > /sys/kernel/debug/dynamic_debug/control If you don't add dvb_core and dvb_usbv2 modules to /sys/kernel/debug/dynamic_debug/control you will not see those. I have added ratelimited version for those few debugs that are flooded normally. This suppressed is coming from ratelimit - it does not print all those similar debugs. regards Antti -- http://palosaari.fi/