From owner-freebsd-bugs@FreeBSD.ORG Mon Apr 13 10:50:01 2009 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 7A4C1106564A for ; Mon, 13 Apr 2009 10:50:01 +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 529B48FC12 for ; Mon, 13 Apr 2009 10:50:01 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id n3DAo1ua058073 for ; Mon, 13 Apr 2009 10:50:01 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.3/8.14.3/Submit) id n3DAo1C0058072; Mon, 13 Apr 2009 10:50:01 GMT (envelope-from gnats) Resent-Date: Mon, 13 Apr 2009 10:50:01 GMT Resent-Message-Id: <200904131050.n3DAo1C0058072@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, Mateusz Guzik Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BD574106566C for ; Mon, 13 Apr 2009 10:41:30 +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 AB7B78FC0C for ; Mon, 13 Apr 2009 10:41:30 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.3/8.14.3) with ESMTP id n3DAfU9G090938 for ; Mon, 13 Apr 2009 10:41:30 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.3/8.14.3/Submit) id n3DAfUWp090937; Mon, 13 Apr 2009 10:41:30 GMT (envelope-from nobody) Message-Id: <200904131041.n3DAfUWp090937@www.freebsd.org> Date: Mon, 13 Apr 2009 10:41:30 GMT From: Mateusz Guzik To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: bin/133700: [truss] If traced process is killed by signal, truss enters infinite loop 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: Mon, 13 Apr 2009 10:50:01 -0000 >Number: 133700 >Category: bin >Synopsis: [truss] If traced process is killed by signal, truss enters infinite loop >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Apr 13 10:50:00 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Mateusz Guzik >Release: 8.0-CURRENT >Organization: >Environment: FreeBSD eternal 8.0-CURRENT FreeBSD 8.0-CURRENT #2: Sat Mar 28 00:24:50 CET 2009 f@eternal:/usr/obj/usr/src/sys/ETERNAL i386 >Description: If traced process is killed by signal, truss enters infinite loop. >How-To-Repeat: Run the following program under truss: int main() {raise(11);} >Fix: The problem lies in setup.c:waitevent(): if (WIFSIGNALED(waitval)) { info->pr_why = S_EXIT; info->pr_why = 0; return; } pr_why is zeroed just after its set to S_EXIT. Patch attached with submission follows: --- usr.bin/truss/setup.c.orig 2007-06-27 00:42:37.000000000 +0200 +++ usr.bin/truss/setup.c 2009-04-13 00:06:45.000000000 +0200 @@ -215,7 +215,7 @@ } if (WIFSIGNALED(waitval)) { info->pr_why = S_EXIT; - info->pr_why = 0; + info->pr_data = 0; return; } } >Release-Note: >Audit-Trail: >Unformatted: