From owner-freebsd-questions@FreeBSD.ORG Wed Mar 17 14:12:57 2010 Return-Path: Delivered-To: FreeBSD-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A4771106566C for ; Wed, 17 Mar 2010 14:12:57 +0000 (UTC) (envelope-from aimass@yabarana.com) Received: from mail-px0-f200.google.com (mail-px0-f200.google.com [209.85.216.200]) by mx1.freebsd.org (Postfix) with ESMTP id 854778FC16 for ; Wed, 17 Mar 2010 14:12:57 +0000 (UTC) Received: by pxi38 with SMTP id 38so254725pxi.27 for ; Wed, 17 Mar 2010 07:12:57 -0700 (PDT) MIME-Version: 1.0 Sender: aimass@yabarana.com Received: by 10.141.88.3 with SMTP id q3mr791351rvl.218.1268835176924; Wed, 17 Mar 2010 07:12:56 -0700 (PDT) In-Reply-To: References: Date: Wed, 17 Mar 2010 10:12:56 -0400 X-Google-Sender-Auth: 1db151f77e542fbd Message-ID: From: Alejandro Imass To: FreeBSD-questions@freebsd.org Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Cc: Subject: Re: Kernel dump crash X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Mar 2010 14:12:57 -0000 On Wed, Mar 17, 2010 at 10:04 AM, Alejandro Imass wrote: > On Wed, Mar 17, 2010 at 4:03 AM, Glenn Camilleri wro= te: >> Hi, >> >> >> >> I have some processes and programs that are custom made to run on FreeBS= D. I >> suspect some poor implementation of tcp in these programs, but don=92t h= ave >> the real proof. > [...] >> >> Can you kindly advise ? >> > > Using the core dump is wise but ktrace will probably be easier. Just > run like this ktrace [program] 2>&1 | less > You should be able to spot the precise failing system call quite easily > Ooops, my Linux background betrayed me, sorry (was thinking of strace). ktrace will produce a file which you later need to analyze with kdump. Running is the same but forget the output redirection, there is a -f switch to specify the outfile. > Best, > Alejandro Imass > >> >> >> BR, >> >> Glenn Camilleri >> >> -- >> Best Regards, >> Glenn Camilleri >> >> >> >> -- >> Best Regards, >> Glenn Camilleri >> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.= org" >> >