From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [patch 11/33] fs: dcache scale subdirs Date: Mon, 21 Jun 2010 16:55:03 +0200 Message-ID: <1277132103.1875.519.camel@laptop> References: <20090904065142.114706411@nick.local0.net> <20090904065535.609317663@nick.local0.net> <1276787615.27822.426.camel@twins> <20100617165329.GA6138@laptop> <1277127322.1875.516.camel@laptop> <20100621144806.GC31679@laptop> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, john stultz , John Kacur , Thomas Gleixner To: Nick Piggin Return-path: In-Reply-To: <20100621144806.GC31679@laptop> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On Tue, 2010-06-22 at 00:48 +1000, Nick Piggin wrote: > > Right, so I was staring at the -rt splat, so its John who created that > > wreckage? > > It was, but apparently they saw an RCU bug there somewhere and hit it > with the big hammer. I haven't been able to reproduce it on a non-rt > kernel yet, and I see yet why RCU is not good enough here. John, could you describe the failure you spotted?