From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753686AbbAZMDs (ORCPT ); Mon, 26 Jan 2015 07:03:48 -0500 Received: from mta-out1.inet.fi ([62.71.2.227]:33336 "EHLO kirsi1.inet.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752545AbbAZMDo (ORCPT ); Mon, 26 Jan 2015 07:03:44 -0500 Date: Mon, 26 Jan 2015 14:03:29 +0200 From: "Kirill A. Shutemov" To: Huang Ying Cc: "Kirill A. Shutemov" , Stephen Rothwell , LKML , LKP ML Subject: Re: [LKP] [mm] WARNING: CPU: 0 PID: 117 at mm/mmap.c:2858 exit_mmap+0x151/0x160() Message-ID: <20150126120329.GC25833@node.dhcp.inet.fi> References: <1422242257.24875.19.camel@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1422242257.24875.19.camel@intel.com> User-Agent: Mutt/1.5.23.1 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 26, 2015 at 11:17:37AM +0800, Huang Ying wrote: > FYI, we noticed the below changes on > > git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > commit f7a7b53a90f7a489c4e435d1300db121f6b42776 ("mm: account pmd page tables to the process") > > > +-----------------------------------+------------+------------+ > | | fe888c1f62 | f7a7b53a90 | > +-----------------------------------+------------+------------+ > | boot_successes | 102 | 6 | > | boot_failures | 2 | 20 | > | BUG:kernel_boot_hang | 2 | | > | WARNING:at_mm/mmap.c:#exit_mmap() | 0 | 20 | > | backtrace:do_execveat_common | 0 | 20 | > | backtrace:SyS_execve | 0 | 20 | > | backtrace:do_group_exit | 0 | 20 | > | backtrace:SyS_exit_group | 0 | 20 | > +-----------------------------------+------------+------------+ > > > [ 5.178599] NX-protecting the kernel data: 5340k > [ 5.182110] random: init urandom read with 0 bits of entropy available > [ 5.183522] ------------[ cut here ]------------ > [ 5.184275] WARNING: CPU: 0 PID: 117 at mm/mmap.c:2858 exit_mmap+0x151/0x160() > [ 5.185664] CPU: 0 PID: 117 Comm: init Not tainted 3.19.0-rc5-next-20150123-gde3d2c5 #144 > [ 5.186988] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 > [ 5.187838] 00000000 00000000 d5d23d34 c16bf243 d5d23d68 c1055ae3 c186e81c 00000000 > [ 5.189610] 00000075 c187dabf 00000b2a c111da01 00000b2a c111da01 00000000 d5d611c0 > [ 5.191397] 0000005e d5d23d78 c1055be2 00000009 00000000 d5d23dd4 c111da01 00000000 > [ 5.193161] Call Trace: > [ 5.193708] [] dump_stack+0x16/0x18 > [ 5.194434] [] warn_slowpath_common+0x83/0xb0 > [ 5.195243] [] ? exit_mmap+0x151/0x160 > [ 5.195988] [] ? exit_mmap+0x151/0x160 > [ 5.196754] [] warn_slowpath_null+0x22/0x30 > [ 5.197575] [] exit_mmap+0x151/0x160 > [ 5.198308] [] mmput+0x43/0xd0 > [ 5.198990] [] flush_old_exec+0x35d/0x7b0 > [ 5.199800] [] load_elf_binary+0x2a8/0xce0 > [ 5.200599] [] ? __fsnotify_parent+0xe/0x100 > [ 5.201407] [] ? vfs_read+0xe2/0x100 > [ 5.202137] [] search_binary_handler+0x5f/0x110 > [ 5.202964] [] load_script+0x209/0x240 > [ 5.203734] [] ? atomic_notifier_chain_register+0xa8/0xb0 > [ 5.204649] [] ? __copy_from_user_ll+0xb/0xe0 > [ 5.205463] [] ? _copy_from_user+0x54/0x60 > [ 5.206248] [] ? put_page+0x8/0x40 > [ 5.206973] [] ? copy_strings+0x259/0x2b0 > [ 5.207756] [] ? preempt_count_sub+0xa0/0x100 > [ 5.208569] [] search_binary_handler+0x5f/0x110 > [ 5.209392] [] do_execveat_common+0x504/0x690 > [ 5.210205] [] ? getname_flags+0x25/0x110 > [ 5.210981] [] SyS_execve+0x34/0x40 > [ 5.211709] [] sysenter_do_call+0x12/0x12 > [ 5.212484] ---[ end trace 863af1d202a59fb4 ]--- > [ 5.214592] ------------[ cut here ]------------ http://lkml.kernel.org/r/20150126115612.GA25833@node.dhcp.inet.fi -- Kirill A. Shutemov