From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754096Ab2LRCHe (ORCPT ); Mon, 17 Dec 2012 21:07:34 -0500 Received: from dcvr.yhbt.net ([64.71.152.64]:49021 "EHLO dcvr.yhbt.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752691Ab2LRCHd (ORCPT ); Mon, 17 Dec 2012 21:07:33 -0500 Date: Tue, 18 Dec 2012 02:07:32 +0000 From: Eric Wong To: Andreas Voellmy Cc: viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, "junchang.wang@yale.edu Wang" Subject: Re: epoll with ONESHOT possibly fails to deliver events Message-ID: <20121218020732.GA13396@dcvr.yhbt.net> References: <20121213093242.GA25436@dcvr.yhbt.net> <2F8919C4-395F-4029-8D4F-AD16A3815FC5@yale.edu> <9BE5F9A7-4D5B-4848-A0BA-55004240B6E0@yale.edu> <4F40C83D-1C29-4654-8B9C-9DBFB63BDC1D@yale.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4F40C83D-1C29-4654-8B9C-9DBFB63BDC1D@yale.edu> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Andreas Voellmy wrote: > There were a couple of errors in the code when I posted my last > message. I have fixed those. The epoll bug still occurs. Sorry I haven't gotten around to this. Can you reproduce this with fewer cores? (I only have 4 at most). Have you tried the latest stable kernel version? Can you reproduce this over TCP loopback, or only across two machines? If the latter, it could also be a driver or firmware bug...