From owner-freebsd-fs@FreeBSD.ORG Thu Feb 12 10:25:28 2009 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 450C8106566C for ; Thu, 12 Feb 2009 10:25:28 +0000 (UTC) (envelope-from glz@hidden-powers.com) Received: from mail.hidden-powers.com (mail.hidden-powers.com [213.242.135.162]) by mx1.freebsd.org (Postfix) with ESMTP id E55278FC1E for ; Thu, 12 Feb 2009 10:25:27 +0000 (UTC) (envelope-from glz@hidden-powers.com) Received: from mail.hidden-powers.com (localhost [127.0.0.1]) by dkim.hidden-powers.com (Postfix) with ESMTP id E9E9C6DFFF; Thu, 12 Feb 2009 11:06:26 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=hidden-powers.com; h=date :from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-type:content-transfer-encoding; s= selector1; bh=qbUXouYizmVs3y+mr5vuvD5RfhE=; b=nXVSLLPNNjZRaVrLnU y0owwSriWYE7RV6oB3Tnu1KOxJe7KeUVj42LCB8uaPbASDxGxl1tnRM6ejT/Q7Wq LFCxHR+7QYo1BdayDrsDKdc4/h+Im7pvrVl2TN+yq79Oe/TvrUIIw6f21klLeNqX MvOujVJeb/45qKJkvNminXWSE= Received: from [172.16.2.110] (gw01.ismobile.com [212.73.186.202]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.hidden-powers.com (Postfix) with ESMTPSA id 7CE2D6DFFE; Thu, 12 Feb 2009 11:06:25 +0100 (CET) Date: Thu, 12 Feb 2009 11:06:25 +0100 From: Goran Lowkrantz To: Peter Jeremy , Kevin Day Message-ID: In-Reply-To: <20090211180743.GC1467@server.vk2pj.dyndns.org> References: <8E12CEFC-25DE-4B82-97BD-7ED717650089@dragondata.com> <20090211180743.GC1467@server.vk2pj.dyndns.org> X-Mailer: Mulberry/4.0.8 (Mac OS X) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Cc: freebsd-fs@freebsd.org Subject: Re: zio->io_cv deadlock X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Feb 2009 10:25:28 -0000 --On February 12, 2009 5:07:43 +1100 Peter Jeremy wrote: > On 2009-Feb-08 22:59:31 -0600, Kevin Day wrote: >> >> I'm playing with a -CURRENT install from a couple of weeks ago. >> Everything seems okay for a few days, then eventually every process >> ends up stuck in zio->io_cv. If I go to the console, it's responsive >> until I try logging in, then login is stuck in zio->io_cv as well. >> Ctrl-Alt-Esc drops me into ddb, but then ddb hangs instantly. > > I think I've seen this as well, though I can't be sure because X.org 7.4 > had trashed my console output. Definitely, I could enter DDB but the > crashdump I requested (blind) never appeared. I don't believe I was > doing anything unusual (other than trying to use X.org 7.4). > I see this now and then in single-user mode during make installworld, ezjail-admin update -i or in multi-user when building a system in the background and updating ports at the same time. I have an USB keyboard and have not been able to break into the debugger with that, have legacy mode enabled in the bios (award). Anyone know how to send break from USB tgb? /glz