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.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (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 55459ECAAD5 for ; Tue, 6 Sep 2022 10:32:58 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-4.v29.lw.sourceforge.com) by sfs-ml-4.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1oVVt1-0000BE-Lk; Tue, 06 Sep 2022 10:32:55 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-4.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1oVVt0-0000B7-73 for linux-f2fs-devel@lists.sourceforge.net; Tue, 06 Sep 2022 10:32:54 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=MIME-Version:Content-Transfer-Encoding:Content-Type :References:In-Reply-To:Message-ID:Date:Subject:To:From:Sender:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=ByCrgYSvV5rK109QSaug+H1CHfQ/CtgE19e4KB7BV+c=; b=b97KIZzaRD+Bx54nVwg71JY8re yW4+db47FonycTYYsSqnAgTt2n46UDwX2/e8XNRk/jiJp15PQb2uO0PFpUnPNgSnUUm47iROf5VKP vMsLii4rHGQj0XRR8infuD8HZugtriorAyXKgTzzDmC8md00mlIsu3Nh+JC1D7meVI44=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=MIME-Version:Content-Transfer-Encoding:Content-Type:References: In-Reply-To:Message-ID:Date:Subject:To:From:Sender:Reply-To:Cc:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=ByCrgYSvV5rK109QSaug+H1CHfQ/CtgE19e4KB7BV+c=; b=S8z8rbeHmz50+DTBIqwsoDTCVc j1+lqi96+9QgcGvUsJtRwBPKOVkoFjmWBVBOSBMzO0j/Z1lLr+YQbxMJkxIWWDVFiPETno7v2aWrI qUTCwaWFkAfWwMm09ITsiZ5kP/4yClmb8/nr3YdD06dXiWrdHcyNm4CTNz7aNI0FDW/U=; Received: from ams.source.kernel.org ([145.40.68.75]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1oVVsz-0003Rb-A1 for linux-f2fs-devel@lists.sourceforge.net; Tue, 06 Sep 2022 10:32:54 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 3E754B81630 for ; Tue, 6 Sep 2022 10:32:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 0BA6BC433D6 for ; Tue, 6 Sep 2022 10:32:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1662460365; bh=nQsmEabX17kN3iNETfIT90cAyKjiksPt5ykWelSElkI=; h=From:To:Subject:Date:In-Reply-To:References:From; b=l2lSNKKniIwjDmYFxei34ZLrCdA22udwhDInQVHnYqggwPixzqk10uXcSxpM3sCT7 0X0kMCkS3fYRStU0zVVoNT16vJyp+XVlwcK8MRyTxWv/ESdgqbHP2paXqFO7206LfD TOWHv4wGFpKZAXwsxTBMM5B0CZ263AtScBhOMxOIuJp99bejbYJNII3IKTsQOiw1n/ 4Bj1c/t5FoDEpXayEPPPEEXvehBQWBL0v70//iKqIITdWpImK3I/4pmDBR0FLnyrm/ wKFFPFsJsY92AzAtfQLAmTD/yc+WGLC8LRXO/EWvWPbjkpVDnooGXU5bbH7lr7++xj QTRzMFhLiAOiA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id B987BC433E4; Tue, 6 Sep 2022 10:32:44 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-f2fs-devel@lists.sourceforge.net Date: Tue, 06 Sep 2022 10:32:44 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo filesystem_f2fs@kernel-bugs.kernel.org X-Bugzilla-Product: File System X-Bugzilla-Component: f2fs X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: linux@sgoth.de X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: filesystem_f2fs@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-Headers-End: 1oVVsz-0003Rb-A1 Subject: [f2fs-dev] [Bug 216050] f2fs_gc occupies 100% cpu X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net https://bugzilla.kernel.org/show_bug.cgi?id=216050 Sebastian Goth (linux@sgoth.de) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |linux@sgoth.de --- Comment #57 from Sebastian Goth (linux@sgoth.de) --- I started to see this on 5.19.6-arch1-1 out of the blue. Noticed the first time while processing pacman post-install hooks hanging, so actually working on the FS. Now the system was essentially idle when f2fs_gc grabbed a core again. INFO: task f2fs_ckpt-259:2:377 blocked for more than 122 seconds. Tainted: P OE 5.19.6-arch1-1 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:f2fs_ckpt-259:2 state:D stack: 0 pid: 377 ppid: 2 flags:0x00004000 Call Trace: __schedule+0x356/0x11a0 ? preempt_schedule+0x43/0x60 schedule+0x5e/0xd0 rwsem_down_write_slowpath+0x335/0x720 ? __schedule+0x35e/0x11a0 ? __checkpoint_and_complete_reqs+0x1b0/0x1b0 [f2fs 9fac87d5629570e172d2b77a90a74b98e0678f12] __checkpoint_and_complete_reqs+0x7a/0x1b0 [f2fs 9fac87d5629570e172d2b77a90a74b98e0678f12] ? __checkpoint_and_complete_reqs+0x1b0/0x1b0 [f2fs 9fac87d5629570e172d2b77a90a74b98e0678f12] issue_checkpoint_thread+0x4c/0x110 [f2fs 9fac87d5629570e172d2b77a90a74b98e0678f12] ? cpuacct_percpu_seq_show+0x20/0x20 kthread+0xdb/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30 INFO: task kworker/u64:0:5076 blocked for more than 122 seconds. Tainted: P OE 5.19.6-arch1-1 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u64:0 state:D stack: 0 pid: 5076 ppid: 2 flags:0x00004000 Workqueue: writeback wb_workfn (flush-259:0) Call Trace: __schedule+0x356/0x11a0 ? ttwu_queue_wakelist+0xef/0x110 schedule+0x5e/0xd0 schedule_timeout+0x11c/0x150 __wait_for_common+0x91/0x1d0 ? usleep_range_state+0x90/0x90 f2fs_issue_checkpoint+0x11f/0x200 [f2fs 9fac87d5629570e172d2b77a90a74b98e0678f12] f2fs_balance_fs_bg+0x119/0x370 [f2fs 9fac87d5629570e172d2b77a90a74b98e0678f12] f2fs_write_node_pages+0x78/0x240 [f2fs 9fac87d5629570e172d2b77a90a74b98e0678f12] do_writepages+0xc1/0x1d0 ? __percpu_counter_sum+0x5b/0x70 ? sched_clock_cpu+0xd/0xb0 __writeback_single_inode+0x3d/0x360 writeback_sb_inodes+0x1ed/0x4a0 ? pollwake+0x78/0xa0 __writeback_inodes_wb+0x4c/0xf0 wb_writeback+0x204/0x2f0 wb_workfn+0x36f/0x520 process_one_work+0x1c4/0x380 worker_thread+0x51/0x390 ? rescuer_thread+0x3b0/0x3b0 kthread+0xdb/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30 -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel