From owner-freebsd-hackers@FreeBSD.ORG Wed Jun 27 02:31:56 2012 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 86C88106564A for ; Wed, 27 Jun 2012 02:31:56 +0000 (UTC) (envelope-from rsimmons0@gmail.com) Received: from mail-lb0-f182.google.com (mail-lb0-f182.google.com [209.85.217.182]) by mx1.freebsd.org (Postfix) with ESMTP id 057788FC19 for ; Wed, 27 Jun 2012 02:31:55 +0000 (UTC) Received: by lbon10 with SMTP id n10so1146878lbo.13 for ; Tue, 26 Jun 2012 19:31:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=c+h/DuWmi8oE3zyHDYZGHkmVT80zdc8GGPba3ot+AXg=; b=I3ecRyHiVspUI6/xvyHqhDdp9CI57YlEN7xHlSl2et/CvM0n6J4wI17epLJnyOxhcX HbFYi3Im7kn2aDfxz4NiEKFVh8Cd06V87fjoID71pYH8jjsp3ILqc1g6IVdBZU/IUQOB Wgl/uHhOUchJ8e0LGA49P6ydV8SK3xYva7LWlyMQZEAVNUabl2bq4aPNmK/jqPc6kZsY znOmxvXTLLhhWjNEg0y7nwlEOEGT8R5Ap9TShN0Ezp1B9h0MVRhfmGkK4b3uGHqhtr+Q S/hAq+A5gd1/sBIKph90bzOZu0VzO79dbUkyUZC2aaO+9rUPM7nVDpNY4F5fX/oACnj6 Xx8Q== MIME-Version: 1.0 Received: by 10.152.104.171 with SMTP id gf11mr18673358lab.5.1340764314850; Tue, 26 Jun 2012 19:31:54 -0700 (PDT) Received: by 10.112.107.170 with HTTP; Tue, 26 Jun 2012 19:31:54 -0700 (PDT) In-Reply-To: <20120627005428.298430@gmx.com> References: <20120627005428.298430@gmx.com> Date: Tue, 26 Jun 2012 22:31:54 -0400 Message-ID: From: Robert Simmons To: freebsd-hackers@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Subject: Re: Freeze when running freebsd-update 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: Wed, 27 Jun 2012 02:31:56 -0000 On Tue, Jun 26, 2012 at 8:54 PM, Dieter BSD wrote: > Robert writes: >> 3) the box is responsive to hitting enter at the console (it produces >> another login: prompt) > > Getty is in memory and can run. > >> 5) if I try to login to the console, it lets me enter a username then >> locks up totally, it does not present me with a password: prompt. > > Login(1) is not in memory, and the kernel cannot read it from disk > for some reason. > > I can get this symptom by writing a large file to a disk on a > controller that FreeBSD doesn't support NCQ on. I assume there > is a logjam in the buffer cache. Something trivial like reading > login in from disk that would normally happen in well under a > second can take many minutes. > > Perhaps geli is causing a similar logjam? Does it hang forever or > is it just obscenely slow? If it truely hangs forever it is > probably something else. Is there disk activity after it hangs? > Can you try it without geli? systat -vmstat might provide a clue. Well, it is geli. I'm unable to reproduce the freeze on the same exact system with everything else the same except for no geli. I'm going to move this thread over to geom, and continue it there. Thanks for your help!