From owner-svn-src-head@FreeBSD.ORG  Wed Jun 30 13:59:53 2010
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 0801F1065670;
	Wed, 30 Jun 2010 13:59:53 +0000 (UTC) (envelope-from mj@feral.com)
Received: from ns1.feral.com (ns1.feral.com [192.67.166.1])
	by mx1.freebsd.org (Postfix) with ESMTP id D53DE8FC0C;
	Wed, 30 Jun 2010 13:59:52 +0000 (UTC)
Received: from [192.168.221.2] (remotevpn [192.168.221.2])
	by ns1.feral.com (8.14.3/8.14.3) with ESMTP id o5UDxdwL030286
	(version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO);
	Wed, 30 Jun 2010 06:59:44 -0700 (PDT) (envelope-from mj@feral.com)
Message-ID: <4C2B4DC6.1050404@feral.com>
Date: Wed, 30 Jun 2010 06:59:34 -0700
From: Matthew Jacob <mj@feral.com>
Organization: Feral Software
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;
	rv:1.9.1.10) Gecko/20100512 Thunderbird/3.0.5
MIME-Version: 1.0
To: John Baldwin <jhb@FreeBSD.org>
References: <201006292044.o5TKiJd7031766@svn.freebsd.org>
	<20100629210522.GY2179@hoeg.nl>
	<201006300934.47629.jhb@freebsd.org>
In-Reply-To: <201006300934.47629.jhb@freebsd.org>
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 7bit
X-Greylist: Sender DNS name whitelisted, not delayed by milter-greylist-4.2.3
	(ns1.feral.com [192.168.221.1]);
	Wed, 30 Jun 2010 06:59:45 -0700 (PDT)
Cc: svn-src-head@FreeBSD.org, Ed Schouten <ed@80386.nl>
Subject: Re: svn commit: r209595 - head/sys/kern
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
	<svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 30 Jun 2010 13:59:53 -0000

Excuse my ignorance, but aren't signals supposed to be to processes, not 
specific threads?

My memory/knowledge of Posix in this area is very rusty.

> On Tuesday 29 June 2010 5:05:22 pm Ed Schouten wrote:
>    
>> * John Baldwin<jhb@FreeBSD.org>  wrote:
>>      
>>> Log:
>>>    Send SIGPIPE to the thread that issued the offending system call
>>>    rather than to the entire process.
>>>        
>> Should something similar be used inside the TTY layer, where
>> reads/writes may cause signals to be generated?
>>      
> Hmm, I'm not sure.  I do think you want to stop the entire process for SIGTTOU
> or SIGTTIN (often the entire process group it seems), so I'm not sure if it
> matters if the signal is sent to only the current thread versus sending it to
> any thread in the process.
>
>