Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758198Ab0FUTEx (ORCPT ); Mon, 21 Jun 2010 15:04:53 -0400 Received: from mail-wy0-f174.google.com ([74.125.82.174]:56988 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757566Ab0FUTEv (ORCPT ); Mon, 21 Jun 2010 15:04:51 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:reply-to:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type; b=uGopt6K3f1++2GVd4gvx1zB/MeZRGyGM/XUt5Of5GUpMkFvp4NfNBSCn7yM9C6P1Fw sxIHlWjUUASg7ixKLm2sQ6/Ug90kFspdgObRsAq0I59b13Fd6zke95kwdvSWsDZlYrKK u75jkSQoYyV99bnU5rZ4fGltAn7PbUfbicbKk= MIME-Version: 1.0 Reply-To: linux@schou.dk In-Reply-To: <1277146250.2501.44.camel@lap75545.ornl.gov> References: <1276972298.22889.16.camel@obelisk.thedillows.org> <1277043970.22889.45.camel@obelisk.thedillows.org> <1277129180.22889.64.camel@obelisk.thedillows.org> <1277146250.2501.44.camel@lap75545.ornl.gov> From: Hans Schou Date: Mon, 21 Jun 2010 21:04:29 +0200 X-Google-Sender-Auth: -c5Zp3ZHOYMJgsSbeJ4K0tFvT4k Message-ID: Subject: Re: [alsa-devel] PROBLEM: SIS7019 stops recording after 42 min To: David Dillow Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1288 Lines: 32 2010/6/21 David Dillow : > On Mon, 2010-06-21 at 19:42 +0200, Hans Schou wrote: >> cmdline is now: >> arecord -B 250000 -F 125000 -c 1 -r 44100 -f S16 -M -D hw:0,0 -v arec.wav > This really makes me think the system just cannot keep up. Can you post > the initial output to verify that it is getting two periods per buffer, > please? Then I have to run it again. I do not have it on the screen anymore. I will do that after the test I'm running now - as mentioned before. I have turned on my signal generator with 400Hz. I will give it a try with listen to it, to hear any clicks when the overrun occur. > Also, does it do the same without the -M ? And you may wish to try > longer and shorter periods to see if you get so many overruns. > Also, what storage are you using? Does it support DMA? PIO modes can be > very slow... On a daily basis I use USB flash memory stick and have done this more than a year but always less than 42 min. Right now I'm using old 4GB external hard disk connected through USB. /hans -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/