From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751265AbWE1HFK (ORCPT ); Sun, 28 May 2006 03:05:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751267AbWE1HFK (ORCPT ); Sun, 28 May 2006 03:05:10 -0400 Received: from ns.dynamicweb.hu ([195.228.155.139]:36051 "EHLO dynamicweb.hu") by vger.kernel.org with ESMTP id S1751265AbWE1HFJ (ORCPT ); Sun, 28 May 2006 03:05:09 -0400 Message-ID: <004501c68225$00add170$1800a8c0@dcccs> From: =?iso-8859-1?Q?Haar_J=E1nos?= To: "Jim Crilly" Cc: References: <01b701c6818d$4bcd37b0$1800a8c0@dcccs> <20060527234350.GA13881@voodoo.jdc.home> Subject: Re: How to send a break? - dump from frozen 64bit linux Date: Sun, 28 May 2006 09:04:27 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org ----- Original Message ----- From: "Jim Crilly" To: "Haar János" Cc: Sent: Sunday, May 28, 2006 1:43 AM Subject: Re: How to send a break? > On 05/27/06 02:58:44PM +0200, Haar János wrote: > > Hello, list, > > > > I wish to know, how to send a "BREAK" to trigger the sysreq functions on the > > serial line, using echo. > > > > I mean like this: > > > > #!/bin/bash > > echo "?BREAK?" >/dev/ttyS0 > > sleep 2 > > echo "m" >/dev/ttyS0 > > > > Is there a reason you can't use "echo -n m > /proc/sysrq-trigger"? Yes, i want to dump my frequently frozen remote server, automatically, if it is possible. (using null-modem cable, and another server.) Anyway, i made it this time by hand. Here is the dump: http://download.netcenter.hu/bughunt/20060528/log.txt (400KB!) Can somebody tell me, what is wrong exactly? Anyway, i interested about, how can i -a single user- interpret these dump to made error reporting more useful? The problem: I used one stable system on 32bit, but i need to switch to X86_64, because the nbd cannot use >2TB devices on 32bit. I have reinstall the RH 9.0 to FC 5.0, and recompiled everything what i used to serving. (the OS is only for external tasks.) But on 64bit, my system becomes unstable. Sometimes it is frozen, but no error message at all! I can see, the crond-jobs is hangs too, but syslog can post messages, but no valuable at all. (I cannot login with ssh.) Thats why i need to dump with serial console. Can somebody help me? :-) Here is the "normal" dmesg message: http://download.netcenter.hu/bughunt/20060528/dmesg.txt (21KB) Thanks, Janos > > Jim. > - > 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/