From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark H Weaver Subject: Re: Meltdown / Spectre Date: Sun, 07 Jan 2018 16:29:49 -0500 Message-ID: <87k1wtcq7m.fsf@netris.org> References: <874lnzcedp.fsf@gmail.com> <20180106174358.GA28436@jasmine.lan> <87vageeobi.fsf@netris.org> <87incedvgv.fsf@netris.org> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:40211) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eYIWL-0007mv-EH for guix-devel@gnu.org; Sun, 07 Jan 2018 16:30:22 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eYIWI-0002FU-AA for guix-devel@gnu.org; Sun, 07 Jan 2018 16:30:21 -0500 Received: from world.peace.net ([50.252.239.5]:51932) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eYIWI-0002FG-5b for guix-devel@gnu.org; Sun, 07 Jan 2018 16:30:18 -0500 In-Reply-To: <87incedvgv.fsf@netris.org> (Mark H. Weaver's message of "Sun, 07 Jan 2018 01:38:40 -0500") List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: Leo Famulari Cc: guix-devel@gnu.org Mark H Weaver writes: > I just followed this up with a Spectre mitigation for WebKitGTK+ > backported from upstream WebKit: > > https://git.savannah.gnu.org/cgit/guix.git/commit/?id=56804398a94bea941183ae4ed29d2a9f82069a6f FYI, adding a patch to 'webkitgtk' seems to have greatly exacerbated an existing race condition in webkitgtk's build system, presumably due to the zeroing of time stamps in the repacked tarball. I believe that *any* patch would have had this effect. I filed the following bug to track this issue: https://bugs.gnu.org/30015 Mark