From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-f178.google.com (mail-ig0-f178.google.com [209.85.213.178]) by kanga.kvack.org (Postfix) with ESMTP id 7D8396B0009 for ; Thu, 21 Jan 2016 13:44:27 -0500 (EST) Received: by mail-ig0-f178.google.com with SMTP id t15so132376689igr.0 for ; Thu, 21 Jan 2016 10:44:27 -0800 (PST) Received: from out3-smtp.messagingengine.com (out3-smtp.messagingengine.com. [66.111.4.27]) by mx.google.com with ESMTPS id 66si6372769ioc.169.2016.01.21.10.44.26 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 21 Jan 2016 10:44:26 -0800 (PST) Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id D75E620B87 for ; Thu, 21 Jan 2016 13:44:23 -0500 (EST) Message-Id: <1453401863.2441764.498860018.3039293C@webmail.messagingengine.com> From: suse.dev@fea.st MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain Subject: Re: kernel 4.4.0 OOPS: "x86/mm: Found insecure W+X mapping at address ..." Date: Thu, 21 Jan 2016 10:44:23 -0800 In-Reply-To: <1453398243.2408446.498798962.17B9E6CB@webmail.messagingengine.com> References: <1453398243.2408446.498798962.17B9E6CB@webmail.messagingengine.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org (seems a cc: here wasn't sufficient from lkml; need to subscribe here too ...) On Thu, Jan 21, 2016, at 09:44 AM, suse.dev@fea.st wrote: > I'm booting kernel 4.4.x + xen 4.6 -- recently upgraded from kernel 4.3.x, > > uname -rm > 4.4.0-3.g0567b9b-default x86_64 > > kernel pkgs are from opensuse repos @ > > http://download.opensuse.org/repositories/Kernel:/stable/standard > > Post-upgrade, I'm seeing the following OOPS on boot; apparently non-fatal, as the system _does_ subsequently complete boot. > > There are a couple of prior mentions on LKML, as yet unaddressed > > https://lkml.org/lkml/2015/11/7/57 > https://lkml.org/lkml/2016/1/19/134 > > as well as on Xen ML > > http://lists.xen.org/archives/html/xen-devel/2015-11/msg00514.html > > Here's the trace, > > Jan 20 17:43:49 x001 kernel: ------------[ cut here ]------------ > Jan 20 17:43:49 x001 kernel: WARNING: CPU: 0 PID: 1 at ../arch/x86/mm/dump_pagetables.c:225 note_page+0x5e1/0x780() > Jan 20 17:43:49 x001 kernel: x86/mm: Found insecure W+X mapping at address ffff880000000000/0xffff880000000000 > Jan 20 17:43:49 x001 kernel: Modules linked in: > Jan 20 17:43:49 x001 kernel: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.0-3.g0567b9b-default #1 > Jan 20 17:43:49 x001 kernel: Hardware name: Supermicro X10SAT/X10SAT, BIOS 3.0 05/26/2015 > Jan 20 17:43:49 x001 kernel: ffffffff81a44e20 ffff880169f57d58 ffffffff8137f639 ffff880169f57da0 > Jan 20 17:43:49 x001 kernel: ffff880169f57d90 ffffffff8107d132 ffff880169f57e98 0010000000000027 > Jan 20 17:43:49 x001 kernel: 0000000000000004 0000000000000000 0000000000000000 ffff880169f57df0 > Jan 20 17:43:49 x001 kernel: Call Trace: > Jan 20 17:43:49 x001 kernel: [] try_stack_unwind+0x175/0x190 > Jan 20 17:43:49 x001 kernel: [] dump_trace+0x69/0x3a0 > Jan 20 17:43:49 x001 kernel: [] show_trace_log_lvl+0x4b/0x60 > Jan 20 17:43:49 x001 kernel: [] show_stack_log_lvl+0x10c/0x180 > Jan 20 17:43:49 x001 kernel: [] show_stack+0x25/0x50 > Jan 20 17:43:49 x001 kernel: [] dump_stack+0x4b/0x72 > Jan 20 17:43:49 x001 kernel: [] warn_slowpath_common+0x82/0xc0 > Jan 20 17:43:49 x001 kernel: [] warn_slowpath_fmt+0x4c/0x50 > Jan 20 17:43:49 x001 kernel: [] note_page+0x5e1/0x780 > Jan 20 17:43:49 x001 kernel: [] ptdump_walk_pgd_level_core+0x2ee/0x420 > Jan 20 17:43:49 x001 kernel: [] ptdump_walk_pgd_level_checkwx+0x17/0x20 > Jan 20 17:43:49 x001 kernel: [] mark_rodata_ro+0xef/0x100 > Jan 20 17:43:49 x001 kernel: [] kernel_init+0x1d/0xe0 > Jan 20 17:43:49 x001 kernel: [] ret_from_fork+0x3f/0x70 > Jan 20 17:43:49 x001 kernel: DWARF2 unwinder stuck at ret_from_fork+0x3f/0x70 > Jan 20 17:43:49 x001 kernel: > Jan 20 17:43:49 x001 kernel: Leftover inexact backtrace: > Jan 20 17:43:49 x001 kernel: [] ? rest_init+0x90/0x90 > Jan 20 17:43:49 x001 kernel: ---[ end trace 3cc91a447d30cdcf ]--- > Jan 20 17:43:49 x001 kernel: x86/mm: Checked W+X mappings: FAILED, 4090 W+X pages found. > > No sure what additional info's helpful; let me know specific, and I can provide. > > Thanks. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org