From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=1.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, FSL_HELO_FAKE,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0B8F5C64EAD for ; Tue, 9 Oct 2018 07:48:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A47D221479 for ; Tue, 9 Oct 2018 07:48:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="uPNk5unh" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A47D221479 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726846AbeJIPD7 (ORCPT ); Tue, 9 Oct 2018 11:03:59 -0400 Received: from mail-wr1-f43.google.com ([209.85.221.43]:34774 "EHLO mail-wr1-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726703AbeJIPD6 (ORCPT ); Tue, 9 Oct 2018 11:03:58 -0400 Received: by mail-wr1-f43.google.com with SMTP id l6-v6so252417wrt.1; Tue, 09 Oct 2018 00:48:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=GEsLnqxKRvF8uA8is7YgA4tp498odlxkNHlD9XhTc/o=; b=uPNk5unhUQm3Vt9tmkLX+L6qBexanT2MrHmbXGeR1BjoJrlfrGVwJjfIPup4DjcUOX RwteUVYnNiTsoGOPhnyjE6Sh8oyM5MVxpAhqe8+jiF5en3E8b6Nm+ECDo97TLAXR6cN/ qkDHmAik7ccFcYWj7jqzAiyNBMZY+ruOEl/HRIbhuo+LCExLQ1VD4hy42XOgy9ASKVIZ Rf3D7KRaLTg4WAJWZ+GqSgkaj9aN6K1d6tOSpo5vzqBcCEh8s4E97E1dC+41BfW4weYs Kd8OFImjX1dTWttuSWK+xZyRJYf8pLecHeUgIUSMYcg0u8Yc7oYprtb3Ki+94e1QOUVt fQzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=GEsLnqxKRvF8uA8is7YgA4tp498odlxkNHlD9XhTc/o=; b=JM/8pCRV3Drx1Ygf314ImoIqE9SoH4fRr5ePowEEhmZ57D6VmjuXPYPasFSe+YBp4L sGu0/heoYLGyAdwRrgcrUH93nJzN6NUBeosi8VqqgVuij+C+hSy3ks7p3xyMErGCcxNx CKsWMpzpeQH7ngcvth2I+OZJJrgXRCfrjVAH99+TJJN0cghwNEB56UTzRbE4IDrdt135 EnBvFnVI5+qB0oohaPSCv520nFndAuo2PSJ1E7xtWf/shO8D5Sdj9ujq2GhYX5PSE7xS eG8Cr/W26o5v+wPT+SWzpwDeAH1Njz/oBcTqwFW1F+U8xAmCLDk4Hrx4+dlBI2BD+oeP JEGw== X-Gm-Message-State: ABuFfoid/75XFJ8MPa6WnZcrUPicChe+r/waAjqd3Tj3I5Nxc4rrdyGb oHoL1Q6vWFTQfe2Qp1f5oMo= X-Google-Smtp-Source: ACcGV6272YtGCAT4tOGe1wcQH8zb+UnMMEaZlWha6gH0Qgi3asWiB4aCqxprm4Od/bOtm+TK3TgSBA== X-Received: by 2002:adf:b743:: with SMTP id n3-v6mr19351111wre.274.1539071299436; Tue, 09 Oct 2018 00:48:19 -0700 (PDT) Received: from gmail.com (2E8B0CD5.catv.pool.telekom.hu. [46.139.12.213]) by smtp.gmail.com with ESMTPSA id 2-v6sm11985001wro.96.2018.10.09.00.48.18 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 09 Oct 2018 00:48:18 -0700 (PDT) Date: Tue, 9 Oct 2018 09:48:16 +0200 From: Ingo Molnar To: Joerg Roedel Cc: Arnd Bergmann , Kees Cook , Borislav Petkov , linux-tip-commits@vger.kernel.org, Andy Lutomirski , Linux Kernel Mailing List , Linus Torvalds , Andrew Morton , Thomas Gleixner , Dave Hansen , Peter Zijlstra , Toshimitsu Kani , "H. Peter Anvin" Subject: Re: [tip:x86/urgent] x86/mm: Avoid VLA in pgd_alloc() Message-ID: <20181009074816.GA114187@gmail.com> References: <20181005161333.765973-1-arnd@arndb.de> <20181008202209.GA6597@zn.tnic> <20181009073913.e4r7qwzb2c6qrji4@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181009073913.e4r7qwzb2c6qrji4@suse.de> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Joerg Roedel wrote: > Hi Arnd, > > On Tue, Oct 09, 2018 at 09:33:56AM +0200, Arnd Bergmann wrote: > > Ah, cool, thanks for the analysis. Is the patch already reverted? > > I.e. should I send a replacement patch, or a relative fix, or is > > someone else already on it? > > Kees sent a fix which is already in tip-tree: > > https://lore.kernel.org/lkml/20181008235434.GA35035@beast/ Yeah, decided to rebase and squash the two patches together into a single commit and credit everyone in a single patch (hopefully correctly), the original patch is pretty recent and I didn't want a bisection breakage. Thanks, Ingo