Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756629AbZA2Snt (ORCPT ); Thu, 29 Jan 2009 13:43:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751631AbZA2Snk (ORCPT ); Thu, 29 Jan 2009 13:43:40 -0500 Received: from x35.xmailserver.org ([64.71.152.41]:51253 "EHLO x35.xmailserver.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751358AbZA2Snk (ORCPT ); Thu, 29 Jan 2009 13:43:40 -0500 X-AuthUser: davidel@xmailserver.org Date: Thu, 29 Jan 2009 10:43:38 -0800 (PST) From: Davide Libenzi X-X-Sender: davide@alien.or.mcafeemobile.com To: Andrew Morton cc: Linux Kernel Mailing List , Pavel Pisa Subject: Re: [patch 1/2] epoll fix own poll() In-Reply-To: <20090129103715.2d3a8274.akpm@linux-foundation.org> Message-ID: References: <20090129000120.da7d249d.akpm@linux-foundation.org> <20090129102726.5f4a0040.akpm@linux-foundation.org> <20090129103715.2d3a8274.akpm@linux-foundation.org> User-Agent: Alpine 1.10 (DEB 962 2008-03-14) X-GPG-FINGRPRINT: CFAE 5BEE FD36 F65E E640 56FE 0974 BF23 270F 474E X-GPG-PUBLIC_KEY: http://www.xmailserver.org/davidel.asc MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1228 Lines: 33 On Thu, 29 Jan 2009, Andrew Morton wrote: > On Thu, 29 Jan 2009 10:32:38 -0800 (PST) Davide Libenzi wrote: > > > On Thu, 29 Jan 2009, Andrew Morton wrote: > > > > > But which kernel version are you looking to get this merged into? > > > > The limit reworking one, ASAP. The epoll poll fix, dunno. > > I'd like to see it staged in your tree for a bit. How much timeframe > > difference are we looking at, from .29 to .30? > > The usual - 2.5 months(ish) > > What is the impact of the bug which this patch fixes? I think we can move the poll-fix (and definitely the debug-nuke-fix) to .30. The bug happens when you add an epoll fd inside another wait container (epoll, poll, select). You may get a wakeup, to only find out later that epoll_wait() has no event for you. The bug has been there since day-1, and it has only recently been noticed. Since it is quite some coe change, I'd like it to stage in your toxic tree for a while :) - Davide -- 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/