From owner-freebsd-hackers@FreeBSD.ORG Fri Sep 10 21:15:19 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 1EA4C106566B for ; Fri, 10 Sep 2010 21:15:19 +0000 (UTC) (envelope-from yanegomi@gmail.com) Received: from mail-bw0-f54.google.com (mail-bw0-f54.google.com [209.85.214.54]) by mx1.freebsd.org (Postfix) with ESMTP id 9FCBA8FC0C for ; Fri, 10 Sep 2010 21:15:18 +0000 (UTC) Received: by bwz20 with SMTP id 20so3123762bwz.13 for ; Fri, 10 Sep 2010 14:15:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:sender:received :in-reply-to:references:date:x-google-sender-auth:message-id:subject :from:to:cc:content-type; bh=rd3ct2tLuKDkvV0q4g93aifrCVneQpWaQfurdziBHPo=; b=P/y8ByEhsp0Nn0FqPxe+Lf9agaPWowM++zg8WQDNO5xkJD+/UYoAn3g4wBjQ2J7L3P gG3PpzAD2mr1XOGz7tlOUr9Hp/K5oN5nmqP7aARgsQkwp5ieNFiTEcuhfcP4UALwCywM v4rug4Kq8KVGdOyYIP99FqmM17oj269Dv5NvM= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=B3EbvpLHJaJPO7/XAgW8oa019w7unGCFuKKa3gP1FWmUM9oLJGbYobSRIhncIGaU5e r6HyRCc05JcPeikTmdkITlJvl2s20TOhV3Z1RtqY3qEjbLRSyFkvy7ScVcX5+ttJaGR5 3Xifzt9OAq18nDvUsei7l5wl7BPnLUCttiElg= MIME-Version: 1.0 Received: by 10.204.117.205 with SMTP id s13mr908224bkq.140.1284153317500; Fri, 10 Sep 2010 14:15:17 -0700 (PDT) Sender: yanegomi@gmail.com Received: by 10.204.113.79 with HTTP; Fri, 10 Sep 2010 14:15:17 -0700 (PDT) In-Reply-To: <4C8A81D9.5020905@rawbw.com> References: <4C8A81D9.5020905@rawbw.com> Date: Fri, 10 Sep 2010 14:15:17 -0700 X-Google-Sender-Auth: 6jAOn-_ormYm_XQ7ngvIvYFzWuU Message-ID: From: Garrett Cooper To: Yuri Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-hackers@freebsd.org Subject: Re: 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 21:15:19 -0000 On Fri, Sep 10, 2010 at 12:07 PM, Yuri wrote: > 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. It doesn't look like ptrace support has been added into the linuxulator, yet.. but I could be wrong. -Garrett