Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753856AbaDYNPx (ORCPT ); Fri, 25 Apr 2014 09:15:53 -0400 Received: from mail-ee0-f43.google.com ([74.125.83.43]:58537 "EHLO mail-ee0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753761AbaDYNPa (ORCPT ); Fri, 25 Apr 2014 09:15:30 -0400 Date: Fri, 25 Apr 2014 15:15:25 +0200 From: Ingo Molnar To: "Chen, Gong" Cc: Borislav Petkov , Owen Kibel , Linus Torvalds , Josh Boyer , "Luck, Tony" , Peter Zijlstra , "hpa@zytor.com" , "linux-kernel@vger.kernel.org" , "atodorov@redhat.com" , "tglx@linutronix.de" , "linux-tip-commits@vger.kernel.org" Subject: Re: [tip:x86/urgent] x86/mce: Fix CMCI preemption bugs Message-ID: <20140425131525.GA27668@gmail.com> References: <20140417192330.GE4321@pd.tnic> <20140417194241.GF4321@pd.tnic> <20140417205807.GA27852@pd.tnic> <20140417213012.GC27852@pd.tnic> <20140417222028.GD27852@pd.tnic> <20140418080716.GA14280@gmail.com> <20140425084723.GA7455@gchen.bj.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140425084723.GA7455@gchen.bj.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Chen, Gong wrote: > On Fri, Apr 18, 2014 at 10:07:16AM +0200, Ingo Molnar wrote: > > Okay, so AFAICS the fix in x86/urgent isn't wrong functionally, it's > > just that the changelog incorrectly claims the raw-spinlock use is a > > bug causing a problem here. > > > > Still that raw spinlock is bogus and might be hiding other problems, > > so we can keep the x86/urgent change (ea431643d6c3) as-is and I'll get > > it to Linus later today ... > > > > Thanks, > > > > Ingo > Hi, Ingo > > We ever had a patch(59d958d2c7) to make spinlock -> raw_spinlock. > Would you please explain it a little more why you revert it? It was years ago and I forgot about that. Should be redone I guess. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/