From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tim Blechmann Subject: Re: hard freezes with hdsp with cardbus/pci adapter card Date: Tue, 11 Aug 2009 17:19:32 +0200 Message-ID: <4A818C04.10005@klingt.org> References: <20090811050619.GA12438@pengutronix.de> <4A811076.6000603@klingt.org> <4A811D1B.2020709@klingt.org> <20090811092526.GA3163@pengutronix.de> <4A813E38.5030007@klingt.org> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============3328588768417158435==" Return-path: Received: from klingt.org (mail.klingt.org [86.59.21.178]) by alsa0.perex.cz (Postfix) with ESMTP id 845EF24C87 for ; Tue, 11 Aug 2009 17:19:43 +0200 (CEST) In-Reply-To: <4A813E38.5030007@klingt.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org Cc: alsa-devel@alsa-project.org, linux-pcmcia@lists.infradead.org List-Id: alsa-devel@alsa-project.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --===============3328588768417158435== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigA4B8C10BC672270D7456D2DC" This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigA4B8C10BC672270D7456D2DC Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable >>> hm, actually, i think the issue is related to the pci latency of the >>> cardbus controller. >> >> Looks like it: >> >> http://lkml.indiana.edu/hypermail/linux/kernel/0404.1/0602.html >> >> Do you know if the increased latency is needed for all bridges, not ju= st ENE? >> (I'd assume so...) >=20 > i remember that issue, it had different symptoms (distorted sound) ... > the ene bridge seems to be the only cardbus bridge, that requires the > increased latency, but maybe other controllers are just more robust and= > don't completely freeze the system hm, i guess, it is not that easy ... having the hdsp running at 44.1khz, the machine ran for several hours, but when i switch the sampling rate to 96khz, the machine freezes quickly. also playing with the pci latency settings of cardbus bridge and hdsp didn't change this. from my understanding the only difference between 44.1khz and 96khz in terms of the higher bandwidth ... tim --=20 tim@klingt.org http://tim.klingt.org Your mind will answer most questions if you learn to relax and wait for the answer. William S. Burroughs --------------enigA4B8C10BC672270D7456D2DC Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkqBjAYACgkQdL+4qsZfVstyXQCfa+L/Q9VIr64A2Dn4jDjlTiq9 5y4An1ppYi21rCVjJZZ3zEjQVvTF35wJ =TioF -----END PGP SIGNATURE----- --------------enigA4B8C10BC672270D7456D2DC-- --===============3328588768417158435== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel --===============3328588768417158435==--