Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750986AbdL3Ber (ORCPT ); Fri, 29 Dec 2017 20:34:47 -0500 Received: from mail-io0-f177.google.com ([209.85.223.177]:37172 "EHLO mail-io0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750944AbdL3Bep (ORCPT ); Fri, 29 Dec 2017 20:34:45 -0500 X-Google-Smtp-Source: ACJfBovCwHn0pD/RJKbtlMaZDaIe43eIOGdYu2/bEQsIBRZAWH3VH3QGhN80nUi17kTc4h8g9A4JA5gx1gTlPDWuOhk= MIME-Version: 1.0 In-Reply-To: References: <33249a35-7d6a-f0f3-5a98-e6474f9366e3@gmx.de> <7A0A9B37-20FF-4B17-B4F5-D8B999269FC4@amacapital.net> From: Linus Torvalds Date: Fri, 29 Dec 2017 17:34:43 -0800 X-Google-Sender-Auth: Zhj5r5HuhOJtmr_Dvp8_v9xpeTk Message-ID: Subject: Re: 4.14.9 doesn't boot (regression) To: Andy Lutomirski , Dave Hansen Cc: =?UTF-8?Q?Toralf_F=C3=B6rster?= , Alexander Tsoy , stable , Linux Kernel , "the arch/x86 maintainers" , Josh Poimboeuf Content-Type: multipart/mixed; boundary="001a1140a4faf6af66056184c07f" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1761 Lines: 45 --001a1140a4faf6af66056184c07f Content-Type: text/plain; charset="UTF-8" On Fri, Dec 29, 2017 at 5:00 PM, Linus Torvalds wrote: > > Good. I was not feeling so happy about this bug report, but now I can > firmly just blame the gentoo compiler for having some shit-for-brains > "feature". Looks like I can generate similar bad code with the F26 version of gcc, it's just not enabled by default. So all gentoo did was change the default options. I suspect we should just add a KBUILD_CFLAGS += $(call cc-option,-fno-stack-check,) somewhere to the main Makefile, just to make sure. Maybe like the appended? Toralf, Alexander, does this make things JustWork(tm) for you? Linus --001a1140a4faf6af66056184c07f Content-Type: text/plain; charset="US-ASCII"; name="patch.diff" Content-Disposition: attachment; filename="patch.diff" Content-Transfer-Encoding: base64 X-Attachment-Id: f_jbsoc4yx0 IE1ha2VmaWxlIHwgMyArKysKIDEgZmlsZSBjaGFuZ2VkLCAzIGluc2VydGlvbnMoKykKCmRpZmYg LS1naXQgYS9NYWtlZmlsZSBiL01ha2VmaWxlCmluZGV4IGFjOGM0NDE4NjZiNy4uOTJiNzRiY2Qz YzJhIDEwMDY0NAotLS0gYS9NYWtlZmlsZQorKysgYi9NYWtlZmlsZQpAQCAtNzg5LDYgKzc4OSw5 IEBAIEtCVUlMRF9DRkxBR1MgKz0gJChjYWxsIGNjLWRpc2FibGUtd2FybmluZywgcG9pbnRlci1z aWduKQogIyBkaXNhYmxlIGludmFsaWQgImNhbid0IHdyYXAiIG9wdGltaXphdGlvbnMgZm9yIHNp Z25lZCAvIHBvaW50ZXJzCiBLQlVJTERfQ0ZMQUdTCSs9ICQoY2FsbCBjYy1vcHRpb24sLWZuby1z dHJpY3Qtb3ZlcmZsb3cpCiAKKyMgTWFrZSBzdXJlIC1mc3RhY2stY2hlY2sgaXNuJ3QgZW5hYmxl ZCAobGlrZSBnZW50b28gYXBwYXJlbnRseSBkaWQpCitLQlVJTERfQ0ZMQUdTICArPSAkKGNhbGwg Y2Mtb3B0aW9uLC1mbm8tc3RhY2stY2hlY2ssKQorCiAjIGNvbnNlcnZlIHN0YWNrIGlmIGF2YWls YWJsZQogS0JVSUxEX0NGTEFHUyAgICs9ICQoY2FsbCBjYy1vcHRpb24sLWZjb25zZXJ2ZS1zdGFj aykKIAo= --001a1140a4faf6af66056184c07f--