From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.gmx.net ([213.165.64.20]:52476 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1755234Ab0AFBvx (ORCPT ); Tue, 5 Jan 2010 20:51:53 -0500 From: Oliver Endriss Reply-To: linux-media@vger.kernel.org To: linux-media@vger.kernel.org Subject: Re: av7110 error reporting Date: Wed, 6 Jan 2010 02:44:39 +0100 References: <4B3BC2F2.30806@dommel.be> In-Reply-To: <4B3BC2F2.30806@dommel.be> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <201001060244.42935@orion.escape-edv.de> Sender: linux-media-owner@vger.kernel.org List-ID: Hi, Johan wrote: > I need some guidance on error messages.. > > The machine receives these messages in the systemlog (dmesg) > > [ 7673.168026] dvb-ttpci: StartHWFilter error buf 0b07 0010 07e9 b96a > ret 0 handle ffff > [ 7674.192025] dvb-ttpci: StartHWFilter error buf 0b07 0010 07ee b96a > ret 0 handle ffff > [ 7675.224025] dvb-ttpci: StartHWFilter error buf 0b07 0010 07f3 b96a > ret 0 handle ffff > [ 7676.248128] dvb-ttpci: StartHWFilter error buf 0b07 0010 07f9 b96a > ret 0 handle ffff > [ 7677.280026] dvb-ttpci: StartHWFilter error buf 0b07 0010 07fd b96a > ret 0 handle ffff > [ 7678.312025] dvb-ttpci: StartHWFilter error buf 0b07 0010 0803 b96a > ret 0 handle ffff > > These start as soon as I view or record a channel, and obviously fills > up the log quickly. > > I believe the code that generates these messages is at the bottom of > this message (part of av7110.c). This code was introduced in 2005 to > improve error reporting. True. > Currently I run today's v4l-dvb (using a hg update), and kernel > 2.6.31-16. (Ubuntu), however the issue occurred in older combinations as > well (over a year ago), so it is not introduced by the last kernels or > DVB driverset. > > The message seems to be triggered by the variable "handle" being larger > then 32. On my system it always reports ffff. Handle == ffff means that the av7110 was not able to create a new filter entry. This will happen if there are already 32 active filters. Does it happen for all channels, or only for a specific one? If the latter is true: Which channel is causing the problem? Does it have a large number of audio pids? > Am I looking at faulty hardware, or can I resolve this issue more > elegant than just disabling the fault report? > (keep in mind that I do not have a programming/coding background) You may disable the warning, but be warned that some parts of the data will not be recorded due to missing filter entries... Oliver -- ---------------------------------------------------------------- VDR Remote Plugin 0.4.0: http://www.escape-edv.de/endriss/vdr/ 4 MByte Mod: http://www.escape-edv.de/endriss/dvb-mem-mod/ Full-TS Mod: http://www.escape-edv.de/endriss/dvb-full-ts-mod/ ----------------------------------------------------------------