From owner-freebsd-current@FreeBSD.ORG Mon Mar 1 18:37:22 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 90808106566C; Mon, 1 Mar 2010 18:37:22 +0000 (UTC) (envelope-from jamesbrandongooch@gmail.com) Received: from mail-pz0-f197.google.com (mail-pz0-f197.google.com [209.85.222.197]) by mx1.freebsd.org (Postfix) with ESMTP id 28D098FC18; Mon, 1 Mar 2010 18:37:21 +0000 (UTC) Received: by pzk36 with SMTP id 36so63360pzk.8 for ; Mon, 01 Mar 2010 10:37:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=qb7HEq0DzLL5aj502ZUQFFRufU+cwvIFHA66gdQEaWk=; b=Wd1hT6AZ9UISfgXu0DQxwm/AMGGK4/G0hYxHHCGQASWTU0RzHcx3TPh/F9Wp6HKPTA dlWu+d9GUjiBT+rnB0AOM/KLOpTT0YnE7C6dlVe0R7U6a6lT3ZZq2P+JEAZwCSax8nYg xkEm3xg++7MvKMNgE8WW4R++DT+6u6frjhiPs= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=RtCJ9WHwXKbyE7g5IUSOXH4l1GTrCKyDYdoSoMmeLxxr13oBbEH4H4htUvD9uEMjGF T9jwOS4xSeshSqUQq553d4D+8dbCieCGrYpcUdm1ok8eR/WlyZqJnbEe8b51QwiXt7G3 WH2HlaYpATlPoQivTkYTRCKArq/jdhkoUmfBk= MIME-Version: 1.0 Received: by 10.142.7.29 with SMTP id 29mr2785851wfg.192.1267468637788; Mon, 01 Mar 2010 10:37:17 -0800 (PST) In-Reply-To: <3bbf2fe11002201419v52b249ccg8d82c8ae747cf318@mail.gmail.com> References: <179b97fb1001270941m2d8e9c8au20abc798c16b9c11@mail.gmail.com> <3bbf2fe11002201419v52b249ccg8d82c8ae747cf318@mail.gmail.com> Date: Mon, 1 Mar 2010 12:37:17 -0600 Message-ID: <179b97fb1003011037w4828ca1fj8de0cb5da35dfc3f@mail.gmail.com> From: Brandon Gooch To: Attilio Rao Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: freebsd-fs@freebsd.org, freebsd-emulation@freebsd.org, FreeBSD Current , stable-list freebsd Subject: Re: ZFS and sh(1) panic: spin lock [lock addr] (smp rendezvous) held by [sh(1) proc tid] too long X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 Mar 2010 18:37:22 -0000 On Sat, Feb 20, 2010 at 4:19 PM, Attilio Rao wrote: > 2010/1/27 Brandon Gooch : >> The machine, a Dell Optiplex 755, has been locking up recently. The >> situation usually occurs while using VirtualBox (running a 64-bit >> Windows 7 instance) and doing anything else in another xterm (such as >> rebuilding a port). =A0I've been unable to reliably reproduce it (I'm in >> an X session and the machine will not panic "properly"). >> >> However, while rebuilding Xorg today at ttyv0 and runnning >> VBoxHeadless on ttyv1, I managed to trigger what I believe is the >> lockup. >> >> I've attached a textdump in hopes that someone may be able to take a >> look and provide clues or instruction on debugging this. > > I think that jhb@ saw a similar problem while working on nVidia driver > or the like. > Not sure if he made any progress to debug this. > The situation has improved slightly, although attempting to run two VirtualBox guests at the same time inevitably leads to a lock-up. I've just taken to running one at a time. Not ideal, but until more debugging can be done, it's the only option I have. I ran into this using nvidia and radeon both. I can't really find a pattern, but I do see it when Windows is trying to draw a new window, or dim the screen when UAC kicks in... BTW, anyone know how to get a good dump when running Xorg? I'm not sure I've ever been able to, even when I panic on something non related to X or video drivers. -Brandon