From owner-freebsd-hackers@FreeBSD.ORG  Sat Nov  5 17:47:27 2011
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
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 CC3B8106564A
	for <freebsd-hackers@freebsd.org>; Sat,  5 Nov 2011 17:47:27 +0000 (UTC)
	(envelope-from markjdb@gmail.com)
Received: from mail-yw0-f54.google.com (mail-yw0-f54.google.com
	[209.85.213.54])
	by mx1.freebsd.org (Postfix) with ESMTP id 8BDD08FC12
	for <freebsd-hackers@freebsd.org>; Sat,  5 Nov 2011 17:47:27 +0000 (UTC)
Received: by ywt32 with SMTP id 32so4845143ywt.13
	for <freebsd-hackers@freebsd.org>; Sat, 05 Nov 2011 10:47:26 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=date:from:to:cc:subject:message-id:references:mime-version
	:content-type:content-disposition:in-reply-to:user-agent;
	bh=XTvAbOi5y5tjKWNCRLnyc85XHZFsVc5N83CpfLAdwok=;
	b=pjtPWSz6F0r1mE68VbVRo91CAoF/+yjCmEKrsLzyqhmxUJsRJUV3JRu8W0mptsdRw2
	76subcbkKj53FCucsO+8Pmpl+bgwvrflpim2bqY6uQtzZuLd1gHf01MNYmXzTdSx+SWk
	uBrEb0D6aJdRhKTxkMHQjFZHF9n848Jlr0B4Q=
Received: by 10.150.225.19 with SMTP id x19mr1617711ybg.93.1320515246797;
	Sat, 05 Nov 2011 10:47:26 -0700 (PDT)
Received: from pikachu.uwaterloo.ca (129-97-197-61.uwaterloo.ca.
	[129.97.197.61])
	by mx.google.com with ESMTPS id r4sm5425279anl.5.2011.11.05.10.47.25
	(version=TLSv1/SSLv3 cipher=OTHER);
	Sat, 05 Nov 2011 10:47:26 -0700 (PDT)
Date: Sat, 5 Nov 2011 13:47:03 -0400
From: Mark Johnston <markjdb@gmail.com>
To: Brandon Falk <falkman@gamozo.org>
Message-ID: <20111105174703.GA2666@pikachu.uwaterloo.ca>
References: <20111105164212.GB50362@localhost>
	<20111105164802.GA50515@raichu.mark-home>
	<20111105170940.GC50362@localhost>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20111105170940.GC50362@localhost>
User-Agent: Mutt/1.5.21 (2010-09-15)
Cc: freebsd-hackers@freebsd.org
Subject: Re: cdparanoia stuck in cbwait
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 05 Nov 2011 17:47:27 -0000

On Sat, Nov 05, 2011 at 01:09:40PM -0400, Brandon Falk wrote:
> On Sat, Nov 05, 2011 at 12:48:02PM -0400, Mark Johnston wrote:
> > On Sat, Nov 05, 2011 at 12:42:12PM -0400, Brandon Falk wrote:
> > > Hello,
> > > 
> > > I was got some read errors when I was reading from my disk, which is
> > > fine. But then cdparanoia starting to no longer respond. Now it's
> > > zombied and sitting in cbwait. `kill -9 <pid>` does not take it down, it
> > > seems like it's stuck in the kernel (?). Is this an issue to look at
> > > cdparanoia for, or to look in the kernel? Perhaps cdparanoia or the
> > > kernel should have some sort of a timeout? Currently it looks like the
> > > only fix is a full reboot.
> > 
> > I've seen this problem a couple of times on -BETA2 as well. I haven't
> > had time to try and figure out what's causing it, but a camcontrol reset
> > of the bus will "fix" the problem without a reboot IIRC.
> > 
> > -Mark
> 
> No luck on the reset. When I reset, it says it was reset successfully,
> but cdparanoia still sits zombied, and nothing changes. If I do
> `camcontrol stop`, camcontrol hangs and becomes a zombie too (until I
> kill it's parent process)

Hm, perhaps I'm misremembering it. I'll try to reproduce it when I get a
chance.