Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753843AbYJ2LKW (ORCPT ); Wed, 29 Oct 2008 07:10:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753463AbYJ2LKI (ORCPT ); Wed, 29 Oct 2008 07:10:08 -0400 Received: from cantor2.suse.de ([195.135.220.15]:39538 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753466AbYJ2LKH (ORCPT ); Wed, 29 Oct 2008 07:10:07 -0400 Date: Wed, 29 Oct 2008 12:10:04 +0100 Message-ID: From: Takashi Iwai To: Fernando Lopez-Lezcano Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, Ingo Molnar Subject: Re: [alsa-devel] 2.6.26.[6|7] vs. rt11 vs. alsa (usb) midi In-Reply-To: <1225229755.3750.1.camel@localhost.localdomain> References: <1224989187.3706.7.camel@localhost.localdomain> <1225229755.3750.1.camel@localhost.localdomain> User-Agent: Wanderlust/2.12.0 (Your Wildest Dreams) SEMI/1.14.6 (Maruoka) FLIM/1.14.7 (=?ISO-8859-4?Q?Sanj=F2?=) APEL/10.6 Emacs/22.3 (x86_64-suse-linux-gnu) MULE/5.0 (SAKAKI) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1828 Lines: 43 At Tue, 28 Oct 2008 14:35:55 -0700, Fernando Lopez-Lezcano wrote: > > On Mon, 2008-10-27 at 09:13 +0100, Takashi Iwai wrote: > > At Sat, 25 Oct 2008 19:46:27 -0700, > > Fernando Lopez-Lezcano wrote: > > > > > > Hi... anyone out there also having problem with this combination? > > > 2.6.26.7 or 2.6.26.6 with 2.6.26.6-rt11 and alsa MIDI > > > It looks to me like alsa midi is broken. > > > > > > Probably an interaction with the realtime kernel patch. A Fedora kernel > > > based on 2.6.26.6 (2.6.26.6-49 on fc8) works fine, a very similarly > > > patched kernel that includes the realtime patch does not. The > > > configurations for both are almost the same (today I tried to change > > > some of the most obvious differences and rebuild, with the same > > > result). > > > > > > No problems with 2.6.24.7-rt21. > > > > > > Test: boot, login, plugin an external usb keyboard (Yamaha P250), it is > > > recognized, use qjackctl alsa patchbay to connect it to kmidimon, > > > kmidimon sees only _one_ midi message and that's it. Kmidimon can't be > > > killed after that. > > > > What about other MIDI devices on other bus, e.g. an MPU401 on a PCI > > soundcard or so? There is a possibility of breakage in the USB driver > > side, too. > > I just tested an RME PCMCIA card + Multiface interface and it shows the > same problem. No MIDI messages get through (but the LED in the Multiface > blinks). Same hardware booted into 2.6.24.7-rt21 works fine. Then this should be in RT side. There is no fundamental change regarding rawmidi since some time ago... Takashi -- 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/