From mboxrd@z Thu Jan 1 00:00:00 1970 From: Frederic Weisbecker Subject: Re: CONFIG_NO_HZ_FULL + CONFIG_PREEMPT_RT_FULL = nogo Date: Fri, 8 Nov 2013 15:29:38 +0100 Message-ID: <20131108142934.GA11112@localhost.localdomain> References: <1383228427.5272.36.camel@marge.simpson.net> <1383794799.5441.16.camel@marge.simpson.net> <1383798668.5441.25.camel@marge.simpson.net> <20131108032343.GA18245@linux.vnet.ibm.com> <1383895880.4964.91.camel@marge.simpson.net> <20131108123713.GC18245@linux.vnet.ibm.com> <1383917188.4964.94.camel@marge.simpson.net> <20131108140331.GD18245@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Mike Galbraith , Thomas Gleixner , Peter Zijlstra , LKML , RT To: "Paul E. McKenney" Return-path: Content-Disposition: inline In-Reply-To: <20131108140331.GD18245@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-rt-users.vger.kernel.org On Fri, Nov 08, 2013 at 06:03:31AM -0800, Paul E. McKenney wrote: > On Fri, Nov 08, 2013 at 02:26:28PM +0100, Mike Galbraith wrote: > > On Fri, 2013-11-08 at 04:37 -0800, Paul E. McKenney wrote: > > > On Fri, Nov 08, 2013 at 08:31:20AM +0100, Mike Galbraith wrote: > > > > On Thu, 2013-11-07 at 19:23 -0800, Paul E. McKenney wrote: > > > > > > > > > An untested patch that gets rid of the RCU_SOFTIRQs in this case is below. > > > > > > > > Yup, toasted. > > > > > > You lost me on this one. If my patch broke your system, any chance of > > > any diagnostic information? > > > > No no, the RCU_SOFTIRQs are toast, history, gone. > > Ah, I do like that outcome much better! ;-) The scheduling-clock > interrupts are gone (or at least reduced) as well? > > And does this mean that I can have your Tested-by? What's wrong with Toasted-by: ? ;)