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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 1F74AC43441 for ; Thu, 8 Nov 2018 22:20:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E487F20892 for ; Thu, 8 Nov 2018 22:20:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E487F20892 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.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 S1731781AbeKIH63 (ORCPT ); Fri, 9 Nov 2018 02:58:29 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:52966 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727124AbeKIH62 (ORCPT ); Fri, 9 Nov 2018 02:58:28 -0500 Received: from akpm3.svl.corp.google.com (unknown [104.133.8.65]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 1C8A486C; Thu, 8 Nov 2018 22:20:53 +0000 (UTC) Date: Thu, 8 Nov 2018 14:20:52 -0800 From: Andrew Morton To: Feng Tang Cc: bugzilla-daemon@bugzilla.kernel.org, Thomas Gleixner , Juergen Gross , Ingo Molnar , "H. Peter Anvin" , boyarsh@altlinux.org, linux-kernel@vger.kernel.org Subject: Re: [Bug 201637] New: hangup sinse 'x86/mm: Expand static page table for fixmap space' with CONFIG_RANDOMIZE_BASE enabled Message-Id: <20181108142052.b8218ee02560864ef9e640b7@linux-foundation.org> In-Reply-To: References: X-Mailer: Sylpheed 3.6.0 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org (switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Thu, 08 Nov 2018 13:48:25 +0000 bugzilla-daemon@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=201637 > > Bug ID: 201637 > Summary: hangup sinse 'x86/mm: Expand static page table for > fixmap space' with CONFIG_RANDOMIZE_BASE enabled > Product: Memory Management > Version: 2.5 > Kernel Version: 4.9.133 > Hardware: All > OS: Linux > Tree: Mainline > Status: NEW > Severity: high > Priority: P1 > Component: Other > Assignee: akpm@linux-foundation.org > Reporter: boyarsh@altlinux.org > Regression: No > > I have early kernel hungup on x86_64 since 4.9.133 and i've finaly bisected it. > > This commit is incompatible with CONFIG_RANDOMIZE_BASE enabled and cause > immediate silent hangup during boot. > > commit 3a8304b7ad2e291777e8499e39390145d932a2fd > Author: Feng Tang > Date: Thu Sep 20 10:58:28 2018 +0800 > > x86/mm: Expand static page table for fixmap space > > commit 05ab1d8a4b36ee912b7087c6da127439ed0a903e upstream. > > We met a kernel panic when enabling earlycon, which is due to the fixmap > address of earlycon is not statically setup. > > -- > You are receiving this mail because: > You are the assignee for the bug.