From owner-freebsd-hackers@FreeBSD.ORG Fri Sep 10 19:25:55 2010 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3090D106566B for ; Fri, 10 Sep 2010 19:25:55 +0000 (UTC) (envelope-from yuri@rawbw.com) Received: from shell0.rawbw.com (shell0.rawbw.com [198.144.192.45]) by mx1.freebsd.org (Postfix) with ESMTP id 023108FC22 for ; Fri, 10 Sep 2010 19:25:54 +0000 (UTC) Received: from eagle.syrec.org (stunnel@localhost [127.0.0.1]) (authenticated bits=0) by shell0.rawbw.com (8.14.4/8.14.4) with ESMTP id o8AJ75PY011071 for ; Fri, 10 Sep 2010 12:07:06 -0700 (PDT) (envelope-from yuri@rawbw.com) Message-ID: <4C8A81D9.5020905@rawbw.com> Date: Fri, 10 Sep 2010 12:07:05 -0700 From: Yuri User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.1.12) Gecko/20100908 Thunderbird/3.0.7 MIME-Version: 1.0 To: freebsd-hackers@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Why I can't trace linux process's childs with truss? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Sep 2010 19:25:55 -0000 I am trying to get the log of all system calls that skype makes with truss -f /usr/local/share/skype/skype For some reason the resulting log only has the leading process calls and nothing from it's 8 childs. Truss doesn't show any 'cloned' processes. Is this a bug in truss that it doesn't follow 'cloned' processes? Is there any workaround or other way I can debug skype? strace doesn't work on amd64. I am primarily interested why it can't read /dev/video0 device, created by webcamd. Yuri