Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935980AbdCXMPd (ORCPT ); Fri, 24 Mar 2017 08:15:33 -0400 Received: from mail-wr0-f175.google.com ([209.85.128.175]:36716 "EHLO mail-wr0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935113AbdCXMPZ (ORCPT ); Fri, 24 Mar 2017 08:15:25 -0400 Date: Fri, 24 Mar 2017 15:06:25 +0300 From: "Kirill A. Shutemov" To: Andrei Vagin Cc: "Kirill A. Shutemov" , LKML , linux-mm@kvack.org Subject: Re: linux-next: something wrong with 5-level paging Message-ID: <20170324120625.osoqp63x3sukijgj@node.shutemov.name> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20170306 (1.8.0) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 549 Lines: 16 On Tue, Mar 21, 2017 at 03:03:20PM -0700, Andrei Vagin wrote: > Hi, > > I reproduced it locally. This kernel doesn't boot via kexec, but it > can boot if we set it via the qemu -kernel option. Then I tried to > boot the same kernel again via kexec and got a bug in dmesg: > [ 1252.014292] BUG: unable to handle kernel paging request at ffffd204f000f000 > [ 1252.015093] IP: ident_pmd_init.isra.5+0x5a/0xb0 > [ 1252.015636] PGD 0 Sorry for this. http://lkml.kernel.org/r/20170324120458.nw3fwpmdptjtj5qb@node.shutemov.name -- Kirill A. Shutemov