From owner-freebsd-hackers@FreeBSD.ORG  Sat Nov  5 17:14:04 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 3331D106566C
	for <freebsd-hackers@freebsd.org>; Sat,  5 Nov 2011 17:14:04 +0000 (UTC)
	(envelope-from markjdb@gmail.com)
Received: from mail-vw0-f54.google.com (mail-vw0-f54.google.com
	[209.85.212.54])
	by mx1.freebsd.org (Postfix) with ESMTP id E570E8FC15
	for <freebsd-hackers@freebsd.org>; Sat,  5 Nov 2011 17:14:03 +0000 (UTC)
Received: by vws11 with SMTP id 11so356938vws.13
	for <freebsd-hackers@freebsd.org>; Sat, 05 Nov 2011 10:14:03 -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=osmElzN4UsruDW2a4Qkry+fYJ1nVZglmCUERzeIv4nc=;
	b=WeYb4Xn8fibO47r1DryllxBgOw68lAIgG2+/C+rQvemhJxhrxdul3N2aU5mP8OdbDm
	15jxiexhh9mW42Q80a1SxRLtXV46ZcZRk+6px17e4AGh0sLNfVxmW+7kDvZj+DrZ/K06
	kaBHDk2onhRyytFtSn8pQqzQU7xTuIP/qAXHA=
Received: by 10.52.88.51 with SMTP id bd19mr19839194vdb.20.1320511898651;
	Sat, 05 Nov 2011 09:51:38 -0700 (PDT)
Received: from raichu.mark-home ([69.166.26.247])
	by mx.google.com with ESMTPS id ha1sm19907627vdb.17.2011.11.05.09.51.37
	(version=TLSv1/SSLv3 cipher=OTHER);
	Sat, 05 Nov 2011 09:51:37 -0700 (PDT)
Date: Sat, 5 Nov 2011 12:48:02 -0400
From: Mark Johnston <markjdb@gmail.com>
To: Brandon Falk <falkman@gamozo.org>
Message-ID: <20111105164802.GA50515@raichu.mark-home>
References: <20111105164212.GB50362@localhost>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20111105164212.GB50362@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 17:14:04 -0000

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