From owner-freebsd-bugs@FreeBSD.ORG Sat Aug 7 15:10:04 2010 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E50731065687 for ; Sat, 7 Aug 2010 15:10:04 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id A80A38FC26 for ; Sat, 7 Aug 2010 15:10:04 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id o77FA4Ji077526 for ; Sat, 7 Aug 2010 15:10:04 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id o77FA4EA077525; Sat, 7 Aug 2010 15:10:04 GMT (envelope-from gnats) Resent-Date: Sat, 7 Aug 2010 15:10:04 GMT Resent-Message-Id: <201008071510.o77FA4EA077525@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, Marcin Wisnicki Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 925C9106566B for ; Sat, 7 Aug 2010 15:08:02 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21]) by mx1.freebsd.org (Postfix) with ESMTP id 814C28FC08 for ; Sat, 7 Aug 2010 15:08:02 +0000 (UTC) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.3/8.14.3) with ESMTP id o77F82mv077288 for ; Sat, 7 Aug 2010 15:08:02 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.3/8.14.3/Submit) id o77F82Lb077287; Sat, 7 Aug 2010 15:08:02 GMT (envelope-from nobody) Message-Id: <201008071508.o77F82Lb077287@www.freebsd.org> Date: Sat, 7 Aug 2010 15:08:02 GMT From: Marcin Wisnicki To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: bin/149403: truss hangs when user input is requested 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: Sat, 07 Aug 2010 15:10:05 -0000 >Number: 149403 >Category: bin >Synopsis: truss hangs when user input is requested >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Aug 07 15:10:04 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Marcin Wisnicki >Release: 8.1-PRERELEASE >Organization: >Environment: FreeBSD ghost.pnet.one.pl 8.1-PRERELEASE FreeBSD 8.1-PRERELEASE #4: Wed Jul 14 21:47:49 CEST 2010 root@ghost.pnet.one.pl:/home/obj/usr/src/sys/SERWER_DDB i386 >Description: When monitored program requests user input, truss hangs. Only way to recover is to kill it with SIGKILL. Problem occurs regardless of '-S', '-o' or '-c' flags. >How-To-Repeat: # this one is ok % truss read abc < /dev/null .. __getcwd("/home/marcin",256) = 0 (0x0) read(10,"#!/bin/sh\n# $FreeBSD: src/usr.b"...,1023) = 161 (0xa1) read(0,0xbfbfe84b,1) = 0 (0x0) read(10,0x8065e20,1023) = 0 (0x0) process exit, rval = 1 # this one is not % truss read abc __getcwd("/home/marcin",256) = 0 (0x0) read(10,"#!/bin/sh\n# $FreeBSD: src/usr.b"...,1023) = 161 (0xa1) SIGNAL 21 (SIGTTIN) # ^T load: 0.18 cmd: truss 11847 [wait] 1.40r 0.06u 0.04s 0% 1176k >Fix: >Release-Note: >Audit-Trail: >Unformatted: