From owner-freebsd-questions@FreeBSD.ORG Wed Nov 6 09:23:22 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 88D25272 for ; Wed, 6 Nov 2013 09:23:22 +0000 (UTC) (envelope-from mexas@bristol.ac.uk) Received: from eu1sys200aog118.obsmtp.com (eu1sys200aog118.obsmtp.com [207.126.144.145]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id E0A532E6E for ; Wed, 6 Nov 2013 09:23:21 +0000 (UTC) Received: from mail-wg0-f50.google.com ([74.125.82.50]) (using TLSv1) by eu1sys200aob118.postini.com ([207.126.147.11]) with SMTP ID DSNKUnoKgjYge1ISrILpJ8MbJeGStkoKi9gg@postini.com; Wed, 06 Nov 2013 09:23:22 UTC Received: by mail-wg0-f50.google.com with SMTP id n12so4668782wgh.5 for ; Wed, 06 Nov 2013 01:23:14 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:sender:date:from:message-id:to:subject:reply-to; bh=0vSdanCr9W5DzSViZkpzpWu3DIzHF2O1k3ua9s6jqYM=; b=dg5LqVTsGpEh7AqfxEN6hoOI/G6MNNwid/Bj1jk16R4dzryL8uh8x3sdQn23H1fOzv 0ae0N5MsdrI6X4bX6pmoCAgMKyNGuBvqqcxUKpg16C1jmU8AIc5qP9YuPwgrD7cW255W NWFG80AY2J2RK6yVvyKsshvnVEaXxLfAGdi6xiYklEAIQq5f7SKd+bGoMh3m29j4YLJB +AjZhmj7jgv6O86aw9ReWjEzNsjlMULOWrbTI65P57rs9kkNr5CjhPBi4wLdPlTNR638 nEE2nQQXxEhlBBd1FovzOe4NtFeNLW9zmMnqwzM+lEoyW/hTq+U1I3jNW9bwyH7tJBn+ vjkw== X-Received: by 10.180.38.99 with SMTP id f3mr1615314wik.40.1383729363637; Wed, 06 Nov 2013 01:16:03 -0800 (PST) X-Gm-Message-State: ALoCoQnPkJdqLilhktwo5whTqFXaYwfIUjT3EL5LF4BdXTfbWXd9swohmkxru8ELjEkCQ2KAFFyY82yovMPSRXxiU/s8h8Fcmc9PNRioXbPdudMb0hqjgFckWsf7lebjDISIChXQfj/x0d46k7el+Vt73lP9HtqBkv+R27jUwEjssO5mArAak9w0yCs2JvybVIYtul3bSzHk X-Received: by 10.180.38.99 with SMTP id f3mr1615310wik.40.1383729363557; Wed, 06 Nov 2013 01:16:03 -0800 (PST) Received: from mech-cluster241.men.bris.ac.uk (mech-cluster241.men.bris.ac.uk. [137.222.187.241]) by mx.google.com with ESMTPSA id y11sm22312746wie.7.2013.11.06.01.15.59 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 06 Nov 2013 01:16:02 -0800 (PST) Sender: Anton Shterenlikht Received: from mech-cluster241.men.bris.ac.uk (localhost [127.0.0.1]) by mech-cluster241.men.bris.ac.uk (8.14.7/8.14.6) with ESMTP id rA69FvKZ075388 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Wed, 6 Nov 2013 09:15:57 GMT (envelope-from mexas@mech-cluster241.men.bris.ac.uk) Received: (from mexas@localhost) by mech-cluster241.men.bris.ac.uk (8.14.7/8.14.6/Submit) id rA69FvRp075387 for freebsd-questions@freebsd.org; Wed, 6 Nov 2013 09:15:57 GMT (envelope-from mexas) Date: Wed, 06 Nov 2013 01:16:02 -0800 (PST) From: Anton Shterenlikht Message-Id: <201311060915.rA69FvRp075387@mech-cluster241.men.bris.ac.uk> To: freebsd-questions@freebsd.org Subject: ktrace help X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: mexas@bris.ac.uk List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Nov 2013 09:23:22 -0000 I suspect that nginx causes my box to reboot. I don't get a panic or anything in the logs, just a reboot. So I wanted to see what nginx is doing prior to reboot with ktrace. I launch ktrace as "ktrace nginx", and I see that ktrace.out has some data. However, after reboot, it's empty: -rw------- 1 root wheel 0 Nov 6 09:04 ktrace.out Is this expected? Thanks Anton