Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964898AbXFFNCt (ORCPT ); Wed, 6 Jun 2007 09:02:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1764723AbXFFNCm (ORCPT ); Wed, 6 Jun 2007 09:02:42 -0400 Received: from [198.99.130.12] ([198.99.130.12]:55965 "EHLO saraswathi.solana.com" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1762162AbXFFNCl (ORCPT ); Wed, 6 Jun 2007 09:02:41 -0400 Date: Wed, 6 Jun 2007 08:52:59 -0400 From: Jeff Dike To: Benjamin Herrenschmidt Cc: Nicholas Miell , Davide Libenzi , Linus Torvalds , Linux Kernel list , Andrew Morton , Paul Mackerras Subject: Re: signalfd API issues (was Re: [PATCH/RFC] signal races/bugs, losing TIF_SIGPENDING and other woes) Message-ID: <20070606125259.GA5491@c2.user-mode-linux.org> References: <1181013756.31677.123.camel@localhost.localdomain> <1181023787.2785.14.camel@entropy> <1181028453.31677.127.camel@localhost.localdomain> <1181087462.2788.8.camel@entropy> <1181088936.2788.10.camel@entropy> <1181091523.2788.28.camel@entropy> <1181098204.31677.158.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1181098204.31677.158.camel@localhost.localdomain> User-Agent: Mutt/1.4.2.3i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 635 Lines: 17 On Wed, Jun 06, 2007 at 12:50:04PM +1000, Benjamin Herrenschmidt wrote: > Yeah, synchronous signals should probably never be delivered to another > process, even via signalfd. There's no point delivering a SEGV to > somebody else :-) Sure there is. UML does exactly that - intercepting child signals (including SEGV) with wait. Jeff -- Work email - jdike at linux dot intel dot com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/