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 X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 14781C10F11 for ; Wed, 10 Apr 2019 18:21:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D80C42077C for ; Wed, 10 Apr 2019 18:21:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730245AbfDJSV5 convert rfc822-to-8bit (ORCPT ); Wed, 10 Apr 2019 14:21:57 -0400 Received: from mail.wl.linuxfoundation.org ([198.145.29.98]:59494 "EHLO mail.wl.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727583AbfDJSV5 (ORCPT ); Wed, 10 Apr 2019 14:21:57 -0400 Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B1D8628C11 for ; Wed, 10 Apr 2019 18:21:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A61CF28C14; Wed, 10 Apr 2019 18:21:56 +0000 (UTC) From: bugzilla-daemon@bugzilla.kernel.org To: linux-ext4@vger.kernel.org Subject: [Bug 203247] jbd2 gets stuck at jbd2_journal_commit_transaction frequently Date: Wed, 10 Apr 2019 18:21:54 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo fs_ext3@kernel-bugs.osdl.org X-Bugzilla-Product: File System X-Bugzilla-Component: ext3 X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: high X-Bugzilla-Who: pankajcabs@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: fs_ext3@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=203247 --- Comment #8 from pkb07815 (pankajcabs@gmail.com) --- issue is reproducible: I have use dd command to generate file in /data area to compete with the postgres operation and using iostat -x to monitor the io condition. Here is how I create the dd with variation of count value and sleep time: for i in {1..100}; do nice -n 10 dd if=/dev/zero of=/data/tmp/testonly/tmpfile$i.txt count=1024 bs=1048576; echo "done tmpfile $i"; sleep 10; done & I use postgresql utility pgbench paired with other in-house sql commands for test of transactions:  su -s /bin/bash postgres -c "/usr/postgresql/bin/pgbench -T 90000 -c 8 bench2" & When I execute the pgbench and dd both..I see the processes going into D state and stuck there for long (atleast for 140 seconds). -- You are receiving this mail because: You are watching the assignee of the bug.