From: Nikola Ciprich Subject: 2.6.32.9 ext4 related hangups? Date: Thu, 25 Feb 2010 19:37:11 +0100 Message-ID: <20100225183711.GE30897@develbox.linuxbox.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: nikola.ciprich@linuxbox.cz To: ext4 devel list Return-path: Received: from gwu.lbox.cz ([62.245.111.132]:60082 "EHLO gwu.lbox.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932838Ab0BYSgl (ORCPT ); Thu, 25 Feb 2010 13:36:41 -0500 Received: from linuxbox.linuxbox.cz (server.linuxbox.cz [10.76.66.10]) by gwu.lbox.cz (Sendmail) with ESMTP id o1PIadCN026420 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 25 Feb 2010 19:36:39 +0100 Content-Disposition: inline Sender: linux-ext4-owner@vger.kernel.org List-ID: Hi, after lots of NFS related troubles, 2.6.32 seems to finally to get to usable state for me. since 2.6.32.9-rc1, it works much better, but we're still getting occasional hangups, and following traces: [109921.032043] INFO: task jbd2/dm-7-8:4338 blocked for more than 120 seconds. [109921.032048] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [109921.032052] jbd2/dm-7-8 D ffff880001e13940 0 4338 2 0x00000080 [109921.032059] ffff880071ddbce0 0000000000000046 ffff880071ddbca8 ffffffff8106e9a5 [109921.032066] ffff880000000000 ffff880071f1a7e0 ffff880071f1a720 ffff88007ac7a720 [109921.032073] ffff880071f1aad8 ffff880071c0e230 0000000101a1aca0 ffffffff00000002 [109921.032080] Call Trace: [109921.032091] [] ? prepare_to_wait+0x25/0x80 [109921.032104] [] jbd2_journal_commit_transaction+0x1ea/0x1890 [jbd2] [109921.032111] [] ? lock_timer_base+0x36/0x70 [109921.032134] [] ? autoremove_wake_function+0x0/0x40 [109921.032140] [] ? try_to_del_timer_sync+0x44/0x100 [109921.032150] [] kjournald2+0xba/0x240 [jbd2] [109921.032154] [] ? autoremove_wake_function+0x0/0x40 [109921.032163] [] ? kjournald2+0x0/0x240 [jbd2] [109921.032167] [] kthread+0x8e/0xa0 [109921.032173] [] child_rip+0xa/0x20 [109921.032178] [] ? kthread+0x0/0xa0 [109921.032182] [] ? child_rip+0x0/0x20 [109921.032186] no locks held by jbd2/dm-7-8/4338. [260041.032035] INFO: task jbd2/dm-7-8:4338 blocked for more than 120 seconds. [260041.032040] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [260041.032044] jbd2/dm-7-8 D ffff880028db0c00 0 4338 2 0x00000080 [260041.032051] ffff880071ddbce0 0000000000000046 0000000000000000 ffffffff8106e9a5 [260041.032058] ffff880000000000 ffff880071f1a7e0 ffff880071f1a720 ffff88007f8ace40 [260041.032065] ffff880071f1aad8 ffff880071c0e230 0000000103de36f0 0000000000000002 [260041.032072] Call Trace: [260041.032083] [] ? prepare_to_wait+0x25/0x80 [260041.032096] [] jbd2_journal_commit_transaction+0x1ea/0x1890 [jbd2] [260041.032103] [] ? lock_timer_base+0x36/0x70 [260041.032108] [] ? autoremove_wake_function+0x0/0x40 [260041.032114] [] ? try_to_del_timer_sync+0x44/0x100 [260041.032123] [] kjournald2+0xba/0x240 [jbd2] [260041.032128] [] ? autoremove_wake_function+0x0/0x40 [260041.032136] [] ? kjournald2+0x0/0x240 [jbd2] [260041.032141] [] kthread+0x8e/0xa0 [260041.032147] [] child_rip+0xa/0x20 [260041.032152] [] ? kthread+0x0/0xa0 [260041.032156] [] ? child_rip+0x0/0x20 [260041.032160] no locks held by jbd2/dm-7-8/4338. Seems to me that it's either ext4, or jbd2 related. Any opinions somebody? thanks a lot in advance br nik -- ------------------------------------- Ing. Nikola CIPRICH LinuxBox.cz, s.r.o. 28. rijna 168, 709 01 Ostrava tel.: +420 596 603 142 fax: +420 596 621 273 mobil: +420 777 093 799 www.linuxbox.cz mobil servis: +420 737 238 656 email servis: servis@linuxbox.cz -------------------------------------