From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?Martin_Kr=FCger?= Subject: Re: PATCH - MIDI on ice1724 - real-time kernel problem SOLVED(?) Date: Wed, 28 May 2008 13:58:22 +0200 Message-ID: <483D48DE.1010105@gmx.de> References: <20080520112539.81C9D2484D@alsa0.perex.cz> <483847ED.8050208@gmx.de> <483A6D6F.1050108@insite.cz> <483A96E8.8090507@gmx.de> <483AE54C.3090807@gmx.de> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by alsa0.perex.cz (Postfix) with SMTP id C716F2461B for ; Wed, 28 May 2008 13:58:24 +0200 (CEST) In-Reply-To: <483AE54C.3090807@gmx.de> 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 To: Takashi Iwai Cc: alsa-devel@alsa-project.org, Pavel Hofman List-Id: alsa-devel@alsa-project.org Martin Kr=FCger schrieb: > Takashi Iwai schrieb: > = >> At Mon, 26 May 2008 12:54:32 +0200, >> Martin Kr=FCger wrote: >> = >> = >>> Pavel Hofman wrote: >>> = >>> = >>>> Martin Kr=FCger wrote: >>>> = >>>> = >>>> = >>>>> Pavel Hofman wrote: >>>>> = >>>>> Hi, = >>>>> >>>>> thanks a lot for taking care for that issue. = >>>>> I just tried it out by modifying the following files from the 2.6.26-= rc3 kernel: >>>>> >>>>> sound/pci/Kconfig (modified by hand) >>>>> sound/pci/ice1712/ice1712.h (modified by hand) >>>>> sound/pci/ice1712/envy24ht.h (modified by hand) >>>>> sound/pci/ice1712/ice1724.c (copied from the actual Git snapshot) >>>>> >>>>> I double-checked all the handmade changes, should be ok. = >>>>> >>>>> Midi in via "amidi -p hw:0 -d" works now without problem, = >>>>> but when trying to write to the device, for example by "amidi -p hw:0= -s txdata.syx" = >>>>> it causes an immediate crash. = >>>>> >>>>> That would not be a problem for me, but jackd probes all ports, and i= s unusable now. >>>>> >>>>> Perhaps i forgot a patch, is the output working for you? = >>>>> = >>>>> = >>>>> = >>>> Hello Martin, >>>> >>>> I did check the MIDI output using command >>>> >>>> amidi -p hw:0 -S F0411042110C000000000074FF0411042110C000000 >>>> >>>> Ubuntu Studio 7.10, both -generic and -rt kernel, Audiotrak Prodigy 19= 2, = >>>> the original patch (I assume the current git version is identical). >>>> >>>> There was no MIDI device connected to the output as I have none. >>>> >>>> I traced if MIDI-out on Juli goes through the Xilinx CPLD, and it seem= ed = >>>> the MIDI lines go straight to the connectors, just as on my Prodigy 19= 2. = >>>> Unfortunately, I do not have Juli available any more to test the patch. >>>> >>>> Please could you provide more details about the crash? >>>> >>>> Thanks, >>>> >>>> Pavel. >>>> _______________________________________________ >>>> Alsa-devel mailing list >>>> Alsa-devel@alsa-project.org >>>> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel >>>> = >>>> = >>>> = >>> Hello Pavel, >>> >>> i just compiled a new 2.6.25.4 kernel with realtime support. the kernel = >>> is from kernel.org, so without any patches except the realtime patch = >>> from the alsa wiki. >>> = >>> = >> To be sure -- does 2.6.25.4 without realtime support work? >> >> >> Takashi >> = >> = > No. Not with an unpatched kernel set to "Preemptible Kernel (Low-Latency = > Desktop) PREEMPT_DESKTOP". I didn't test the lower preemption modes. > > Martin > _______________________________________________ > Alsa-devel mailing list > Alsa-devel@alsa-project.org > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel > = Hi, i just compiled a 2.6.25-3 with Preemption disabled and i still get the = the same. Midi in works, Midi out leads to a complete system freeze. Is there a workaroud of disabling just Midi out? That would solve the = bug for me, and would prevent other users from freezing their system... Thanks for your help, Martin