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[130.117.225.111]) by mx.google.com with ESMTPS id ffacd0b85a97d-48e71ba44edsi25620988f8f.116.2026.11.03.09.50.55 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2026 09:50:55 -0800 (PST) Received-SPF: pass (google.com: domain of khorenko@virtuozzo.com designates 130.117.225.111 as permitted sender) client-ip=130.117.225.111; Authentication-Results: mx.google.com; dkim=pass header.i=@virtuozzo.com header.s=relay header.b=BeHY2lOA; spf=pass (google.com: domain of khorenko@virtuozzo.com designates 130.117.225.111 as permitted sender) smtp.mailfrom=khorenko@virtuozzo.com; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=virtuozzo.com DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=virtuozzo.com; s=relay; h=Message-Id:Date:From:Subject:Content-Type: MIME-Version; bh=IWM8OjL12VgxknOaAEvKitJIJBJrKY0lV4EMXZ46pHE=; b=BeHY2lOAFI/V OSrcNr0eYKSeM48JdbhLPrMjH36mPfohuHjfkqLNQAU80z0fSyEzTI2JvNI2d2wa8mxaHTYntB3YP yCIv/wFRGnR1L4D2ABRgyu5YBNGt8cJXeo4BDfmEe3yB1UK3a7VahzP9KUqCPgARLBadk20aEVB9Z uqI7JnzFSbmPJG6JHAF+G117j8rJGHmq2bs44CYVZr2iwefu6nNuxKYi7UTv6hF1q/ZOg8M0p1q45 e4ULVKK5Yh2DsVLt9iDKMZZTMqwogj0RsaRhQNm1L6554n9xsIP7s5yqgNJK6qhNwYjRr7xhW4EPo hBN0hW2Ruw2yjr6YqzBjsg==; Received: from ch-demo-asa.virtuozzo.com ([130.117.225.8] helo=f0.sw.ru) by relay.virtuozzo.com with esmtp (Exim 4.96) (envelope-from ) id 1xOIax-004r4V-1Z; Tue, 03 Nov 2026 18:50:45 +0100 MIME-Version: 1.0 From: Konstantin Khorenko To: Alexander Ivanov In-Reply-To: <20261028150645.3222391-5-alexander.ivanov@virtuozzo.com> References: <20261028150645.3222391-1-alexander.ivanov@virtuozzo.com> <20261028150645.3222391-5-alexander.ivanov@virtuozzo.com> Date: Tue, 03 Nov 2026 18:50:49 +0100 Message-Id: <179372824968.2555502.3757300531937994350.b4-review@b4> X-Mailer: b4 0.16.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=795; i=khorenko@virtuozzo.com; h=from:subject:message-id; bh=9xj+O1+Bnu87nUNHJjsuMTrFd7jL9ygEl5gtf90KSFg=; b=owEBbQKS/ZANAwAKAVGWCkf5YVwqAcsmYgBq6h788WBfFQs2ohKf7rhTFrVJCxi6Gq6fMX4mO 7EdKdrTnP+JAjMEAAEKAB0WIQRWD23IPcXT0GO9CCxRlgpH+WFcKgUCauoe/AAKCRBRlgpH+WFc KnAFEACnCgBcD00t/pQMD1GU73/PH/pug8arJmGNE77w9EdOMMnPXQ37YM/+y3VsWvfs62dqGSK cBLirmiNZvBHH2Isql+XaKQ2t9xJ8SB0/4dLHudqax2Ql5gAA5vmCkrUbdOeonsxVIrUC9Tsd4z cBS6vpWMDzdhlcKM/33AK+UiTT7ZYyLPBOVFIt5Ws1s8yRaDdwaltqA8o08NpWvHYz8sVl5ePLZ 3HtB3DmYUsFkhCuT5cZJ3pYN1+QTc8ZtiF25QGSHnmm2XN5m23DVVSy6wN+6BKJhRgipUH9d5Ci ACUmgZi42HNdXj7TYii/+4kdeYE8XV51zTUuMfxWNCBehDgEE1IdizkW2zgH50Nx1o1ZG6E+Rgb oEMbR9uRztVat9uVbsuyBIab/aPibUHQyZlTSn63edcE/uuQh9xZKOBIsvGY5VNJ6Yv4n930lA/ wuiD55/2UuMsX0B8mXRyyocjrjxTTeiykUxWWIuHnljuyWkNGe1AHlpofxyKw9ewi8H2/27GGhN Hp2nxPMCW3FqBH04F/4ZehAeZv52wy4DOIp0/5ATjyrnU/nfUl1ateSCej+DgRuDXwuXnymiRiO HuXqVn2l6Naz81UQm/5if2VO9c3Hf7/EbsuU0DpiYwteFRKfgwYQj+YS9VoIZ42ShmBCMPS13Ne GfpIr/2fk6Dul3A== X-Developer-Key: i=khorenko@virtuozzo.com; a=openpgp; fpr=560F6DC83DC5D3D063BD082C51960A47F9615C2A X-OZ-Fwd: true Cc: devel@openvz.org Subject: Re: [Devel] [PATCH hci-8.1 v9 04/10] dm-qcow2: complete wbd before ending the data qio X-BeenThere: devel@openvz.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: OpenVZ development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: devel-bounces@openvz.org Errors-To: devel-bounces@openvz.org I won't apply this version, please send v10 with the changes below. On 10/28/26 16:06, Alexander Ivanov wrote: > running in AIO completion context. revert_l_entries_update() then > marks clusters unused and dirties R2 after the flush, and the change > is never written back. - Say what happens to that R2 page instead of "never written back". The page is dirty and sits on slow_wb_batch_list. Preresume frees all md pages in qcow2_free_md_pages_all(), which does not take them off that list, so the slow writeback timer can later walk a freed page. If the timer comes first, it writes the page after postsuspend, behind the flush. Both are worse than a lost update, and the message should say which one you are fixing. -- Konstantin Khorenko, Virtuozzo Linux Kernel Team _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel