From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Subject: Re: [Announce] 2.6.29-rc4-rt1 Date: Thu, 12 Feb 2009 09:18:01 +0100 Message-ID: <20090212081801.GA22979@elte.hu> References: <20090212005032.GA4788@nowhere> <20090212021257.GB4697@nowhere> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Thomas Gleixner , LKML , rt-users , Steven Rostedt , Peter Zijlstra , Carsten Emde , Clark Williams To: Frederic Weisbecker Return-path: Received: from mx3.mail.elte.hu ([157.181.1.138]:56126 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750748AbZBLISR (ORCPT ); Thu, 12 Feb 2009 03:18:17 -0500 Content-Disposition: inline In-Reply-To: <20090212021257.GB4697@nowhere> Sender: linux-rt-users-owner@vger.kernel.org List-ID: * Frederic Weisbecker wrote: > The first one, a lockdep warning: > > [ 2.975320] [] rt_spin_lock+0x85/0xb0 > [ 2.975320] [] ? kfree+0x43/0xc0 > [ 2.975320] [] kfree+0x43/0xc0 > [ 2.975320] [] ? trace_hardirqs_off+0xd/0x10 > [ 2.975320] [] generic_smp_call_function_single_interrupt+0x106/0x110 > [ 2.975320] [] smp_call_function_single_interrupt+0x24/0x40 > [ 2.975320] [] call_function_single_interrupt+0x13/0x20 > [ 2.975320] [] ? native_safe_halt+0xb/0x10 > [ 2.975320] [] ? native_safe_halt+0x9/0x10 > [ 2.975320] [] ? default_idle+0x5a/0x60 > [ 2.975320] [] ? cpu_idle+0x7e/0x100 > [ 2.975320] [] ? start_secondary+0x197/0x1eb hm, that's a complex one - we do kfree() from IPI context, dunno why this never triggered in our testing of -rt1. > The second, a sysfs warning: > > [ 8.042459] ------------[ cut here ]------------ > [ 8.054763] WARNING: at fs/sysfs/dir.c:462 sysfs_add_one+0x51/0x60() > [ 8.066777] Hardware name: AMILO Li 2727 > [ 8.078555] sysfs: duplicate filename '14:4' can not be created that should be harmless - unless you only get it under -rt1. Ingo