Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753942Ab1EEMQV (ORCPT ); Thu, 5 May 2011 08:16:21 -0400 Received: from mailout.rz.uni-frankfurt.de ([141.2.22.233]:44474 "EHLO mailout.rz.uni-frankfurt.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753129Ab1EEMQU (ORCPT ); Thu, 5 May 2011 08:16:20 -0400 Message-ID: <4DC2A149.1080008@gmx.de> Date: Thu, 05 May 2011 15:08:25 +0200 From: Thomas Sattler User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.17) Gecko/20110414 Mnenhy/0.8.3 Thunderbird/3.1.10 MIME-Version: 1.0 To: Andrea Arcangeli CC: Linux Kernel Mailing List Subject: Re: iotop: khugepaged at 99.99% (2.6.38.3) References: <4DAF6C0B.3070009@gmx.de> <20110427134613.GI32590@random.random> <4DC14474.9040001@gmx.de> <20110504143842.GK7838@random.random> In-Reply-To: <20110504143842.GK7838@random.random> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-MailScanner: Found to be clean Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1356 Lines: 32 The machine kept running until two hours ago. Then system load started to increase. Slowly but constantly. I waited for about an hour before I rebooted. It started while I was reading manpages and I could not quit pressing 'q'. I was unable to open new terminals (in fact the terminals opened, but never reached a shell prompt). Already open terminals allowed entering commands, some worked others hung. Tab completion in shells reproduceably hung them. While I pressed SysRq-l and SysRq+t several times, nothing at all has been written to disk. No lines in /var/log/messages after sysload started to increase. A terminal already running "watch -n1 'dmesg+hrts | uniq -c | tail -n58'" showed: http://pastebin.com/raw.php?i=2cC53raT ('dmesg+hrts' translates timestamps into a wallclocktime.) Two other terminals were running 'top' and 'iotop': http://pastebin.com/raw.php?i=Mwj2mGdw I tried to run 'ps xal' but that also hung the terminal. I'm sorry, but that's all I could get. Please keep in mind that this particular machine was (and again is), in spite of the threads subject, running 2.6.38.2 Thomas -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/