From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752219Ab2AYLCZ (ORCPT ); Wed, 25 Jan 2012 06:02:25 -0500 Received: from www.linutronix.de ([62.245.132.108]:57900 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751637Ab2AYLCY (ORCPT ); Wed, 25 Jan 2012 06:02:24 -0500 Date: Wed, 25 Jan 2012 12:02:19 +0100 (CET) From: Thomas Gleixner To: John Kacur cc: Steven Rostedt , Karsten Wiese , LKML , RT , "Paul E. McKenney" , Peter Zijlstra Subject: Re: rt-kernel 3.0.14-rt31: BUG: sleeping function called from invalid context In-Reply-To: Message-ID: References: <201201180053.52617.fzuuzf@googlemail.com> <1326848525.17534.66.camel@gandalf.stny.rr.com> <1326991117.17534.132.camel@gandalf.stny.rr.com> User-Agent: Alpine 2.02 (LFD 1266 2009-07-14) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="8323328-1286624960-1327489340=:2716" X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323328-1286624960-1327489340=:2716 Content-Type: TEXT/PLAIN; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT On Thu, 19 Jan 2012, John Kacur wrote: > On Thu, Jan 19, 2012 at 5:38 PM, Steven Rostedt wrote: > > On Thu, 2012-01-19 at 17:16 +0100, John Kacur wrote: > > > >> I'm testing v3.0.14-rt32-rc1, and it greatly reduced the number of > >> these, but I still got one during boot. > >> > >> [   11.938649] BUG: sleeping function called from invalid context at > >> /home/jkacur/rt.linux.git/kernel/rtmutex.c:645 > >> [   11.938651] in_atomic(): 1, irqs_disabled(): 1, pid: 168, name: irq/9-acpi > >> [   11.938653] 1 lock held by irq/9-acpi/168: > >> [   11.938653]  #0:  (acpi_gbl_gpe_lock){......}, at: > >> [] acpi_ev_gpe_detect+0x31/0x110 > > > > Could you test 3.2-rt. If that has the issue then we know we have more > > to fix. If not, we know I missed a patch. > > > > I tested with v3.2-rt10 and the issue is not there. I'm surprised. I know already what the problem is and according to the code it should be visible in 3.2 as well. I'm still twisting my head around that acpi maze to fix that particular one. > I also examined your patches and couldn't find anything wrong with > them, and for larks tried applying > cpumask-disable-offstack-on-rt.patch from v3.2-rt10 > all to no avail, the problem is still there. What a surprise, it's completely unrelated. --8323328-1286624960-1327489340=:2716--