From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=74.125.82.42 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794461693; b=SP5TZCNJcCPTuSGuyBp+toUo0pZfCEUpEdZYTJgbJCkZKNWf2o7OW1QTGFJGt0uxF4aj +FkHt059pLzC2/y+gfByA06B4j2UuS+xLBibqVnTy6hRzn3VICK1im6XZOpZVllhFWSDe vVcrJ6IUZE/ShqPVag+n7NU8g/LXpEwUzF9ZpTnbOKMUHeF/Lds7TiVwA6gsYJWUKllhC FCHemPU0KmTz+jzuWbJnv5YQXZwZhAKxaWoqqIAi5IWe+XWbFHkWt3pAssprtAx4FlA1z cwKIeL2NoK5wcXhTfjCGXCVERWqZQk4dg/f0+e6Gk+XJdCOTHBLQHYQWE2Bw+ATlxkQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794461693; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Gm-Gg:X-Received:Received: From:To:Cc:Subject:Date:Message-ID:X-Mailer:MIME-Version: Content-Transfer-Encoding; bh=ZBzb0jWFuu4WC1vXCF6cW6GE7gHM+sCU4Tmo420Ip/c=; b=jkBrkgdJYrzA1EZtp81bjUueZi7e5J4ZkU6ShYBP6nc4IDX2cNgIhHZuneP5/xNY2336 3ZmDGBcW7MbgMCeuz0BhPanXcukxl3ewmDBTbDNdDltHAnp1p3MVV99+PVas3bNoQr1cd mWSOyulk/6mZfpVraSk30sPUA8AcqEsX+9AjUnTY9NnSz9IcpCadYtqQ8h20eegEWrZDM Iw6WQigHn3+rmQhjGOdzkrBo0TY1Xqu6W2mmKmPiIPiW96grnUMJm/PFlOuTzSJB9a+Zq Sqv4+EwbSZsVELdOikjIq/PmviMjD4n8YSB6JUsl6xmzMhsvFI2TEzCU4qDGnpa2AOA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=EKLyEyvl; arc=none smtp.remote-ip=74.125.82.42 Received: from mail-dl1-f42.google.com (mail-dl1-f42.google.com [74.125.82.42]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 28958606A327 for ; Thu, 12 Nov 2026 05:34:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 28958606A327 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=EKLyEyvl Received: by mail-dl1-f42.google.com with SMTP id a92af1059eb24-1b3a05f8b5bso5495793c88.1 for ; Wed, 11 Nov 2026 21:34:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20260707; t=1794461692; x=1795066492; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=ZBzb0jWFuu4WC1vXCF6cW6GE7gHM+sCU4Tmo420Ip/c=; b=EKLyEyvlzMKSq6OEIIQREfxshLeZnru40IjQZm2aIj1zYNJZARALaU5lfOvdaOuQ/+ s3D4BNuqsfUo7HUW1p/H93MshLd+ofXu/Onr/ckGkw/DkFWziumdVNwFrf/Mwyp9B871 vXdGkZVtI936EzjXpH9JPe3TLoz+PioUyyA0kNdfhK9I+9vrSTbPPI1OeJQR6yIYrmbR Q/Kut/BV0+GvsD9JHH/7O6UeGnR484jCWrKwFxGK8zYz5Uc4fq5RNkDuQ7a39uHSukh7 5PQ6kTV0j+VGp5VFkErFaAGEKAq4jul6YcthGobHE11aDzOq/zxk1EP8TjrCddivdi8x fHDw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1794461692; x=1795066492; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=ZBzb0jWFuu4WC1vXCF6cW6GE7gHM+sCU4Tmo420Ip/c=; b=y1JhsSRvYqsOjs6MC0zHDACVY+HbbZUeXIsyMAgZqCnO9OX4Al+BgoLiTVn7gphsA5 u08zbfwrVrA3WU/9knbExwxZUlsLE329BnajlCjGz6zSYZQ1aMwsP/R40KOuTgoVo5ba dgamTFdt/chltZXCN8UktqQJFPy4G9eS4u75aM7pX+u+hDAZ0IQGLCCMQxu15QHp0JOD DLfgM7IA/optV+MC9WQmnlijuq5j6Vq1UjZDK4MwVyrOZToTULd3fJxhNOklJ+kC0rKo EQWmpQshjiuF2AmtF9e4aYn5nY6kLdB8GU7qiXtsNdxRpJNytauUQdksC9E30eSwAZFy 6D0A== X-Forwarded-Encrypted: i=1; AL+hErG+fQIVecDizYzHnFE6SSjZFmLaAM4sPB/9r9erBc4CWYqeRb7TZJrD3zsAYV8OW+kpIxyJWGiXC4s=@vger.kernel.org X-Gm-Message-State: APuU4Z99JodkWz/FfJKJhr53MwczuWqceSMq3O7noKUNupw01EOGlqkf feCe0NxtzcW9IoyUSbQoIEgGCxgt3LcaSDfMjAAqt9Q4/mqWpIMt/SsT X-Gm-Gg: AYBFou1i53g3QVz9/SsDB/lGy1gPr+SS4SF/C0ORl/fkT+SFZy1TTIICBeRLBok9n6t GOBQT61JbamHySpONp4Q+6Bn4OgauqpRXr4wCGlOxwUcUmqOXtSapHFKE4ANLCEhSyRrtVGKVlB eYx/J+Chw0HzU+7zTBkDuZUDjVddMvovp4SQONAQmYowhSg17JD1BkGZJ944Rg4rKpbRuQaLddk C20cTADTNPBH7eZ0DvXT5KptvICQGyYt+pE0xioAT89OSiZnhTDrPQNltXBTBz8npOJICEibr3Y IGhb3bCWw4SGnzsO4TUV8fAfXGv4y87lI32RTO/4s/kxEfCsrMTCRGvNhIhx+GRj/nlaqm20yWz 63CqzKQfK+j/OirBThCsyclzu52HiP3MA08Mv3SU9ZzOGTW3OLFfIhWuJ3X0utZ0O94C5kCzJaA 01X6pYUI8UaRoMC/UDuYtlLCluHiH4VjDNiCk9NaJeLDPchlVMllh+75j6fZZue7lMGFRXC3KYO MuED+8/GRILFkarVi1witq+AOja4BwEYIjBdioTIOvStKdB/PdzmUjDbKwadvkGTNqOlcztpz0q oJgGkaJDoaN6Y4qe26Fjjy0D41LsWq9ZGX2i7AjOaxX4PKASimz2tSn1+HSR3hxUZZYRLpBPN++ riXooKIVOtx7HMIuQve8Ybbz1NbYs+HneDS/5zFofkQaC2XLMcga+uzNf3mnawFYZ6P/t X-Received: by 2002:a05:7022:b0c5:b0:1a7:7160:ffc8 with SMTP id a92af1059eb24-1b3c27a7bc3mr2652841c88.10.1794461692054; Wed, 11 Nov 2026 21:34:52 -0800 (PST) Received: from localhost.localdomain ([183.96.175.225]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-1b3b5890c0esm21953240c88.1.2026.11.11.21.34.48 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Wed, 11 Nov 2026 21:34:51 -0800 (PST) From: Joonho Lee To: linux-sound@vger.kernel.org Cc: tiwai@suse.com, perex@perex.cz, anton.yakovlev@opensynergy.com, mst@redhat.com, virtualization@lists.linux.dev, linux-kernel@vger.kernel.org, corbet@lwn.net, skhan@linuxfoundation.org, rdunlap@infradead.org, linux-doc@vger.kernel.org Subject: [PATCH v29 00/17] ALSA: virtio: preserve PCM progress Date: Thu, 12 Nov 2026 14:34:29 +0900 Message-ID: <20261112053446.73504-1-mynameisjune111@gmail.com> X-Mailer: git-send-email 2.54.0 X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This resends v28 in full using mynameisjune111@gmail.com for every message. There are no code or patch-description changes from v28; the existing human DCO trailers are retained. The v28 documentation patch 14 was rejected by Gmail. Sending that message through my Workspace account made it available on Lore, but Sashiko grouped it separately from the other sixteen patches. This revision sends the complete series with one From address. Previous version: https://lore.kernel.org/linux-sound/20261112043516.37010-1-mynameisjune111@gmail.com/T/ The following describes the changes and validation already included in v28. This replaces v27 in full. Apply all seventeen patches directly to base commit a4311e9447bbb219044db38897f95be112f46a8a. The previous public version is at: https://lore.kernel.org/linux-sound/20261112004704.49758-1-mynameisjune111@gmail.com/T/ Changes since v27 are confined to patch 12. The other patch diffs are unchanged. I reproduced both capture findings from the Sashiko review. If request N+1 completed before N, RESET could leave N+1's already completed payload eligible for later delivery. After an external XRUN, rejecting N also left N+1 buffered until generation cleanup. PREPARE cleared that state in the control test, so this does not establish a permanent recovery failure. RESET now marks valid completed payloads present at the pointer observation as discarded while retaining their ordered placeholders. This lets the commit sequence advance when older requests return. Transport-owned requests and data arriving after the observation remain eligible to commit. Repeated RESET preserves the discard, and invalid response status still reports XRUN. Rejected completions also release returned buffered entries without resetting the sequence of requests still owned by the transport. The failed native PAUSE path previously reopened the queue with the STOP quiet boundary and capture_stopping flag still set. A running stream could then accept an empty completion without the normal XRUN check. Rollback now restores the prior flags under the substream lock and checks the reset epoch before reopening admission. ARM64 QEMU tests use the actual driver functions with test-only request ordering and STOP allocation-failure injection. The v27 baseline fails eight affected assertions; the candidate passes all thirteen assertions, including normal reordering, post-observation delivery, invalid status, and STOP empty-tail controls. The running-observation test invokes the actual pointer-observation helper. Full RUNNING RESET ioctls are covered separately by the production regression. The production driver module was built separately without those hooks. Its ARM64 W=1 build and eight QEMU regression runs passed with the matching v27 KASAN/lockdep kernel and core modules. These cover RW/MMAP capture, PREPARED RESET with DRAIN/reopen, RUNNING RESET, and playback PAUSE/RELEASE, HWSYNC/poll, DROP and reopen. Capture includes 70-second RW and resumed MMAP phases. The independent backend-sequence oracle matched 7,104,000 frames across seven capture phases. No KASAN or lockdep diagnostic appeared. The kernel image and core were reused unchanged; the modified driver was rebuilt. Fresh KCSAN and physical VZ tests were not run for this revision. The earlier v27 KCSAN and Scarlett results describe that earlier build. The controlled tests use synthetic requests and a known STOP failure before submission; they do not qualify transport timeout/uncertainty or demonstrate out-of-order completions on physical hardware. Intermediate patch stages are application-checked; the fresh runtime tests cover the final candidate. Review addressed: https://lore.kernel.org/linux-sound/sashiko-outbox-210240@kernel.org/ base-commit: a4311e9447bbb219044db38897f95be112f46a8a