Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264300AbTKZUFP (ORCPT ); Wed, 26 Nov 2003 15:05:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264312AbTKZUFO (ORCPT ); Wed, 26 Nov 2003 15:05:14 -0500 Received: from fw.osdl.org ([65.172.181.6]:28830 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S264300AbTKZUFE (ORCPT ); Wed, 26 Nov 2003 15:05:04 -0500 Date: Wed, 26 Nov 2003 12:04:56 -0800 (PST) From: Linus Torvalds To: William Lee Irwin III cc: Gene Heskett , linux-kernel@vger.kernel.org Subject: Re: amanda vs 2.6 In-Reply-To: <20031126195049.GT8039@holomorphy.com> Message-ID: References: <200311261212.10166.gene.heskett@verizon.net> <200311261415.52304.gene.heskett@verizon.net> <20031126193059.GS8039@holomorphy.com> <200311261443.43695.gene.heskett@verizon.net> <20031126195049.GT8039@holomorphy.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1404 Lines: 32 On Wed, 26 Nov 2003, William Lee Irwin III wrote: > On Wed, Nov 26, 2003 at 02:43:43PM -0500, Gene Heskett wrote: > > No, it just hangs forever on the su command, never coming back. > > everything else I tried, which wasn't much, seemed to keep on working > > as I sent that message with that hung su process in another shell on > > another window. I'm an idiot, normally running as root... > > I've rebooted, not knowing if an echo 0 to that variable would fix it > > or not, I see after the reboot the default value is 0 now. > > Okay, then we need to figure out what the hung process was doing. > Can you find its pid and check /proc/$PID/wchan? I've seen this before, and I'll bet you 5c (yeah, I'm cheap) that it's trying to log to syslogd. And syslogd is stopped for some reason - either a bug, a mistaken SIGSTOP, or simply because the console has been stopped with a simple ^S. That won't stop "su" working immediately - programs can still log to syslogd until the logging socket buffer fills up. Which can be _damn_ frsutrating to find (I haven't seen this behaviour lately, but I remember being perplexed like hell a long time ago). Linus - 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/