From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753942AbbGFIMX (ORCPT ); Mon, 6 Jul 2015 04:12:23 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:36675 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753702AbbGFIMU (ORCPT ); Mon, 6 Jul 2015 04:12:20 -0400 Date: Mon, 6 Jul 2015 10:12:10 +0200 From: Peter Zijlstra To: Arthur Marsh Cc: linux-kernel@vger.kernel.org, Rusty Russell , Steven Rostedt , Mathieu Desnoyers , Oleg Nesterov , "Paul E. McKenney" Subject: Re: lock-up with module: Optimize __module_address() using a latched RB-tree Message-ID: <20150706081210.GS18673@twins.programming.kicks-ass.net> References: <55997889.5020101@internode.on.net> <20150706071911.GT3644@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150706071911.GT3644@twins.programming.kicks-ass.net> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 06, 2015 at 09:19:11AM +0200, Peter Zijlstra wrote: > On Mon, Jul 06, 2015 at 04:03:45AM +0930, Arthur Marsh wrote: > > I am happy to supply further details and run further tests. > > A .config and gcc version might be a good start. I'll see if 32bit > userspace in KVM can reproduce. If you can, can you also provide your bzImage and initrd, that would get me closer to your setup. Feel free to provide those offlist if that's better for you. For the kernel that goes *Boom* obviously ;-)