From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758394Ab0EVUoa (ORCPT ); Sat, 22 May 2010 16:44:30 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:48828 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758284Ab0EVUo1 (ORCPT ); Sat, 22 May 2010 16:44:27 -0400 Date: Sat, 22 May 2010 21:44:26 +0100 From: Al Viro To: walt Cc: linux-kernel@vger.kernel.org Subject: Re: [2.6.34-git8][regression] massive polling problems with udevd and other processes Message-ID: <20100522204426.GO31073@ZenIV.linux.org.uk> References: <201005221535.38939.shawn.starr@rogers.com> <4BF83CBF.8080300@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4BF83CBF.8080300@gmail.com> User-Agent: Mutt/1.5.20 (2009-08-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, May 22, 2010 at 01:21:19PM -0700, walt wrote: > On 05/22/2010 12:35 PM, Shawn Starr wrote: > >Just built today's snapshot from linus's tree and have problems with udev > >using 100% cpu and KDE processes also pegging cpus. > > > >This is with Fedora 13 + snapshot kernel from git. > > > >Anyone else noticing this? > > Yes, just bisected it to this: > > commit a7cf4145bb86aaf85d4d4d29a69b50b688e2e49d > Author: Eric Paris > Date: Fri May 14 11:44:10 2010 -0400 > > anon_inode: set S_IFREG on the anon_inode Cute... Frankly, I'd be fine with just reverting that one and teaching selinux to STFU. However, I wonder what specifically is getting polled. Which anon_inode users? Does anybody have strace handy?