From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <4F456D8F.1080801@zytor.com> Date: Wed, 22 Feb 2012 14:34:55 -0800 From: "H. Peter Anvin" MIME-Version: 1.0 To: Linus Torvalds CC: Greg Kroah-Hartman , stable@vger.kernel.org, Raphael Prevost , Suresh Siddha , Linux Kernel Mailing List Subject: Re: [PATCH 0/5] i387: stable kernel backport References: In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: On 02/22/2012 12:54 PM, Linus Torvalds wrote: > > This is a reasonably minimal backport of the i387 state save/restore bug. > > A few of the commits are just minimal "make it easier to backport" commits > that don't necessarily fix anything on their own. And a few of the others > are combinations of what is two commits in the development tree, because > it turned out to be easier and cleaner that way. > > The last one is the one that fixes the x86-32 bug, but the preemption > fixes are real fixes too, although they are probably not something that > anybody has necessarily ever hit in reality because the race window is so > small. Even so, if the fix itself isn't that important, the "make it > easier to backport the main one" would still be a big argument for it. > > I *really* hope that the people who could reproduce this bug will test the > back-port series too, since I never actually saw the bug personally to > begin with. And again, big thanks to Raphael who helped pinpoint and debug > this. > Okay, this patchset does *NOT* work. It fails immediately on my system. I hadn't ever seen it fail so fast. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.