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 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E8E0DEDE99F for ; Thu, 14 Sep 2023 10:04:12 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qgjC8-0006sb-78; Thu, 14 Sep 2023 06:03:32 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qgjC4-0006sM-HD for qemu-devel@nongnu.org; Thu, 14 Sep 2023 06:03:28 -0400 Received: from mail-wm1-x32d.google.com ([2a00:1450:4864:20::32d]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qgjC2-0005rb-Qp for qemu-devel@nongnu.org; Thu, 14 Sep 2023 06:03:28 -0400 Received: by mail-wm1-x32d.google.com with SMTP id 5b1f17b1804b1-4018af103bcso5110975e9.1 for ; Thu, 14 Sep 2023 03:03:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1694685803; x=1695290603; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:in-reply-to :references:user-agent:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to; bh=z3fsj11AVU6SnD0ZPRjyi3XjR7+z19MVYiMVELU5ioI=; b=wQJaK6jO2Hzx26+WCesGcvm4cE/bzoVWG6xIUwYuhpkpNrmZ1xZP2Xa3m4cnUAKq1M H8Lm1YhA0Z0SNX1+nO6F3uj2qU3Rx8iP/xlIkwez3VAJNjo7odRLdSlPcRvn6S9+VJEW uGFOUNYInoQTJTM5nbhoDhuUkf5+m5mFpXihx/U04cHy3tmkn7Lf3tpwXmj8GkIt6Gmi 0QgENlTNoqPbj2icJ1Ov3RW95WZbx/BshM4tv6wPH1k25o0mWUMM/Xn3m9PSlqyH6zar 15goYlyf+CWHOG0QI6wLruIK8Rf1pdqIkQK/42DKRb56h03hcRhwFPgMH9Go40v2ZygE f2Og== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694685803; x=1695290603; h=content-transfer-encoding:mime-version:message-id:in-reply-to :references:user-agent:subject:cc:to:from:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=z3fsj11AVU6SnD0ZPRjyi3XjR7+z19MVYiMVELU5ioI=; b=wUpXEGpc8Li+dqDGjaxSVD8vpVAdMpfzeMXtl/T6lCdBfIEKGtI/CUN62b9W9UePD+ Ialcum5pGj0Gd1C7HpdBbXDFQPIW6LrDQ73OmeTm4EIyHpu/B3L7OMFNTjXJuFP06RJL XhYaKgvvntssmb/B2KAo17ifhp2gSA4WlaZo4dgVgsD/Dbn7/k+rSC+EnrOlMzwhGq+F zJFtqqhHmzJwSSLMjB/ANfqHdHR9pL3DnUCuHJi5DDj4PkWcGKhIUCYu9mfKSsuR5dN6 nXHhfAffLSpIgIivasBqY2AAZxYK6n0TuMnsRDYLGkdGyLz9LG3jUn+E05/lAr4wCh5P 0E1g== X-Gm-Message-State: AOJu0Yws8nIotawz/K/XiRFIy3ji++8UhlbhDylFyYhvmPnbpn1NwyNn gpNLL+rsGU1wf6mBhPPmZxAmDw== X-Google-Smtp-Source: AGHT+IGZonbeukA/amzJww/6BgJycvhllOioJaIjGG9BKuVEMHC3/3ySzFy8GiU3jDi3YdJscb7bQA== X-Received: by 2002:a7b:c847:0:b0:402:ea8c:ea57 with SMTP id c7-20020a7bc847000000b00402ea8cea57mr1013594wml.7.1694685803305; Thu, 14 Sep 2023 03:03:23 -0700 (PDT) Received: from meli.delivery (adsl-98.37.6.3.tellas.gr. [37.6.3.98]) by smtp.gmail.com with ESMTPSA id j3-20020a056000124300b0031fb91f23e9sm1333967wrx.43.2023.09.14.03.03.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Sep 2023 03:03:23 -0700 (PDT) Date: Thu, 14 Sep 2023 13:02:05 +0300 From: Manos Pitsidianakis To: Stefano Garzarella Cc: qemu-devel@nongnu.org, Igor Skalkin , Anton Yakovlev , Paolo Bonzini , Gerd Hoffmann , "Michael S. Tsirkin" , Marcel Apfelbaum , "Daniel P. Berrang=?UTF-8?B?w6k=?= " , Eduardo Habkost , Marc-Andr=?UTF-8?B?w6kg?=Lureau , Volker R=?UTF-8?B?w7w=?= melin , "K=?UTF-8?B?xZE=?= v=?UTF-8?B?w6E=?= g=?UTF-8?B?w7M=?= , Zolt=?UTF-8?B?w6E=?= n" , Alex Benn=?UTF-8?B?w6k=?= e , Philippe Mathieu-Daud=?UTF-8?B?w6kg?=, Mark Cave-Ayland Subject: Re: [PATCH v9 00/12] Add VIRTIO sound card User-Agent: meli 0.8.1 References: <2gm4wkfnjopd7l5zvzepzknl4hfomkxvtgvw72daazne2n34wy@fgqmh3mi3r5l> In-Reply-To: <2gm4wkfnjopd7l5zvzepzknl4hfomkxvtgvw72daazne2n34wy@fgqmh3mi3r5l> Message-ID: <0yzxl.gd0zk711fja@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=utf-8; format=flowed Received-SPF: pass client-ip=2a00:1450:4864:20::32d; envelope-from=manos.pitsidianakis@linaro.org; helo=mail-wm1-x32d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Thu, 14 Sep 2023 12:54, Stefano Garzarella wrote: >We are seeing something strange with the virtio-sound Linux driver. >It seems that the driver modifies the buffers after exposing them to >the device via the avail ring. I need more information about this bug. What is the unexpected behavior that made you find that the buffer was modified in the first place? Manos