From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01F56C433E0 for ; Sun, 14 Jun 2020 15:41:24 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7EE2C206D7 for ; Sun, 14 Jun 2020 15:41:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="sONy5VXs" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7EE2C206D7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 08AF31665; Sun, 14 Jun 2020 17:40:32 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 08AF31665 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1592149282; bh=FbqNeUHB88bMkq8ydL3k4dJjR7QNPnft+GqvlHyiAWI=; h=Date:From:To:Subject:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=sONy5VXsnaurakvIrOVmbm7Lpa06tFM8aANdv1KopOCoOXA1g+6sWrmOTi4xNwWpa BZ8YmWpcatz9TgVja/xIgBlIjue7mFf2CKwgUj5CXjG98M6RPVFc003lETFN3124a/ zXq5mS0Slm/dQHzguh9XcI0gkEtwecjZ/+yC3iW8= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 5FD34F80217; Sun, 14 Jun 2020 17:40:30 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 21D73F8022B; Sun, 14 Jun 2020 17:40:28 +0200 (CEST) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 87E83F8011E for ; Sun, 14 Jun 2020 17:40:23 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 87E83F8011E X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 4E443ABCF; Sun, 14 Jun 2020 15:40:26 +0000 (UTC) Date: Sun, 14 Jun 2020 17:40:21 +0200 Message-ID: From: Takashi Iwai To: "Alex Xu (Hello71)" Subject: Re: next-0519 on thinkpad x60: sound related? window manager crash In-Reply-To: <1592135950.lcpn6p9fh0.none@localhost> References: <20200520111136.GA3802@amd> <1591545088.74ii116nf2.none@localhost> <20200608061950.GA17476@lst.de> <1591624340.z01ejtod28.none@localhost> <20200609114733.GA1621@lst.de> <1592065395.r5zwoblr15.none@localhost> <1592135950.lcpn6p9fh0.none@localhost> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Cc: alsa-devel@alsa-project.org, x86@kernel.org, rientjes@google.com, tiwai@suse.com, linux-kernel@vger.kernel.org, hch@infradead.org, mingo@redhat.com, bp@alien8.de, Pavel Machek , hpa@zytor.com, tglx@linutronix.de, Christoph Hellwig X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On Sun, 14 Jun 2020 14:07:48 +0200, Alex Xu (Hello71) wrote: > > Excerpts from Takashi Iwai's message of June 14, 2020 5:54 am: > > On Sat, 13 Jun 2020 18:25:22 +0200, > > Alex Xu (Hello71) wrote: > >> > >> Excerpts from Takashi Iwai's message of June 11, 2020 1:11 pm: > >> > Thanks, so something still missing in the mmap handling, I guess. > >> > > >> > I've worked on two different branches for potential fixes of your > >> > problems. Could you test topic/dma-fix and topic/dma-fix2 branches? > >> > git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git > >> > Just pull one of them onto Linus' git HEAD. > >> > > >> > I guess we'll go with David's new patch, but still it's interesting > >> > whether my changes do anything good actually. > >> > > >> > > >> > Takashi > >> > > >> > >> On torvalds 623f6dc593, topic/dma-fix causes sound to be output as > >> alternating half-second bursts of noise and a few seconds of silence. > >> topic/dma-fix2 appears to work properly. > > > > OK, thanks for the feedback! Just to make sure, you're using > > PulseAudio, right? > > If so, it was still something wrong about mmap, and the secondary > > method (the fallback to the continuous page) looks like a safer > > approach in the end. > > > > I suppose that David's fix will be merged sooner or later. Meanwhile > > I'll work on the change in the sound driver side to make things a bit > > more robust. They don't conflict and both good applicable. > > > > > > thanks, > > > > Takashi > > > > Ah, no, I think that wasn't clear. I use ALSA directly with mostly > default configuration, except an asym sets separate default playback and > record devices. > > asound.conf: > > defaults.pcm.card 1 > defaults.ctl.card 1 > > pcm.!default { > type asym > playback.pcm > { > type plug > slave.pcm "dmix" > } > capture.pcm > { > type plug > slave.pcm { > type dsnoop > ipc_key 6793 > slave.pcm "hw:U0x46d0x81d" > } > } > } > > I think I wasn't able to set defaults.pcm.dmix.card and > defaults.pcm.dsnoop.card for some reason, not sure why. I can try that, > but I don't think it will affect this mmap issue. The dmix is an implementation exclusively with mmap, so yes, it's still about the mmap. This also shows the same problem. thanks, Takashi