From owner-freebsd-bugs@FreeBSD.ORG Tue Sep 6 20:30:11 2005 Return-Path: X-Original-To: freebsd-bugs@hub.freebsd.org Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9F59C16A41F for ; Tue, 6 Sep 2005 20:30:11 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2E3B643D49 for ; Tue, 6 Sep 2005 20:30:11 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.3/8.13.3) with ESMTP id j86KUBpX059358 for ; Tue, 6 Sep 2005 20:30:11 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.3/8.13.1/Submit) id j86KUAFq059357; Tue, 6 Sep 2005 20:30:10 GMT (envelope-from gnats) Resent-Date: Tue, 6 Sep 2005 20:30:10 GMT Resent-Message-Id: <200509062030.j86KUAFq059357@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Jason Gardiner Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8CB2F16A41F for ; Tue, 6 Sep 2005 20:22:30 +0000 (GMT) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [216.136.204.117]) by mx1.FreeBSD.org (Postfix) with ESMTP id 582EB43D53 for ; Tue, 6 Sep 2005 20:22:30 +0000 (GMT) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.13.1/8.13.1) with ESMTP id j86KMUMI003511 for ; Tue, 6 Sep 2005 20:22:30 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.13.1/8.13.1/Submit) id j86KMUb2003462; Tue, 6 Sep 2005 20:22:30 GMT (envelope-from nobody) Message-Id: <200509062022.j86KMUb2003462@www.freebsd.org> Date: Tue, 6 Sep 2005 20:22:30 GMT From: Jason Gardiner To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-2.3 Cc: Subject: misc/85810: nslookup/dig Hang and processes cannot be killed X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Sep 2005 20:30:11 -0000 >Number: 85810 >Category: misc >Synopsis: nslookup/dig Hang and processes cannot be killed >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Sep 06 20:30:10 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Jason Gardiner >Release: 5.4 >Organization: Sprint >Environment: FreeBSD config-east.sprintlink.net 5.4-RELEASE FreeBSD 5.4-RELEASE #0: Sat Sep 3 01:02:55 EDT 2005 root@config-east.sprintlink.net:/usr/src/sys/i386/compile/GENERIC-SMP i386 >Description: Running either a dig or nslookup frequently causes the shell window to hand after returning the query response but before returning a prompt. ^C or ^D do not stop the process. Non-authoritative answer: Name: www.usair.com Address: 151.193.204.72 > exit ^C^C^C^D ^D ^C^C^C Later, I noticed that the processes are still running. I attempted to perform a kill -9, a killall -9 and a kill -17, but the processes remain: config-east# ps -aux | grep nslookup root 6418 0.0 0.1 4196 2560 p0- R 1:57PM 0:00.01 nslookup twit 86489 0.0 0.1 4060 2352 p0- R 10:02AM 0:00.01 nslookup elle gardiner 86512 0.0 0.1 4060 2452 p0- R 10:04AM 0:00.01 nslookup jay gardiner 90668 0.0 0.1 4060 2452 p0- R 10:34AM 0:00.01 nslookup www. twit 12643 0.0 0.1 4060 2420 p1 T+ 3:47PM 0:00.01 nslookup sl-b gardiner 6407 0.0 0.1 3976 2364 p3- R 1:57PM 0:00.01 nslookup gardiner 90680 0.0 0.1 4124 2516 p3- R 10:35AM 0:00.01 nslookup I tried dig, with the same results. I built BIND9 from the ports and used the newly built resolver with the same results. Environment settings appear to have no effect. This is an almost generic kernel rebuild. The only settings changed were options SMP options SCHED_ULE >How-To-Repeat: Perform nslookup either from a command line or interactive. >Fix: >Release-Note: >Audit-Trail: >Unformatted: