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 picard.linux.it (picard.linux.it [213.254.12.146]) (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 5CC85EED60A for ; Thu, 12 Sep 2024 14:30:39 +0000 (UTC) Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id 66CEE3C2694 for ; Thu, 12 Sep 2024 16:30:37 +0200 (CEST) Received: from in-6.smtp.seeweb.it (in-6.smtp.seeweb.it [217.194.8.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by picard.linux.it (Postfix) with ESMTPS id 70FBB3C2403 for ; Thu, 12 Sep 2024 16:30:21 +0200 (CEST) Authentication-Results: in-6.smtp.seeweb.it; spf=pass (sender SPF authorized) smtp.mailfrom=suse.cz (client-ip=195.135.223.130; helo=smtp-out1.suse.de; envelope-from=chrubis@suse.cz; receiver=lists.linux.it) Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by in-6.smtp.seeweb.it (Postfix) with ESMTPS id 99DEE1402F9C for ; Thu, 12 Sep 2024 16:30:20 +0200 (CEST) Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id A390221B09; Thu, 12 Sep 2024 14:30:19 +0000 (UTC) Authentication-Results: smtp-out1.suse.de; none Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 8344113AD8; Thu, 12 Sep 2024 14:30:19 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id Z+LBD/v64maDBQAAD6G6ig (envelope-from ); Thu, 12 Sep 2024 14:30:19 +0000 Date: Thu, 12 Sep 2024 16:29:13 +0200 From: Cyril Hrubis To: kernel test robot Message-ID: References: <202409122103.e45aa13b-oliver.sang@intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <202409122103.e45aa13b-oliver.sang@intel.com> X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[] X-Rspamd-Queue-Id: A390221B09 X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Action: no action X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Virus-Scanned: clamav-milter 1.0.3 at in-6.smtp.seeweb.it X-Virus-Status: Clean Subject: Re: [LTP] [linus:master] [f2fs] 9f0f6bf427: ltp.ADSP069.fail X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: lkp@intel.com, Chao Yu , linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, oe-lkp@lists.linux.dev, Jaegeuk Kim , ltp@lists.linux.it Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" Hi! So what the test does is: - creates a sparse file (truncates an empty file to non-zero size) - starts N child processes that open the file and read it in chunks while they expect zeros to be read - starts a single writer child that opens the file with O_DIRECT and writes zeros to the file starting at some offset And if the test fails it means that at some point one of the reader children have seen inconsistent state. -- Cyril Hrubis chrubis@suse.cz -- Mailing list info: https://lists.linux.it/listinfo/ltp