From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751402AbbALD0l (ORCPT ); Sun, 11 Jan 2015 22:26:41 -0500 Received: from ozlabs.org ([103.22.144.67]:58781 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751071AbbALD0j (ORCPT ); Sun, 11 Jan 2015 22:26:39 -0500 Date: Mon, 12 Jan 2015 14:26:29 +1100 From: Stephen Rothwell To: Huang Ying Cc: "Kirill A. Shutemov" , LKML , LKP ML , Andrew Morton Subject: Re: [LKP] [mm] Find a way to test remap_file_pages Message-ID: <20150112142629.46c45532@canb.auug.org.au> In-Reply-To: <1421032741.6201.162.camel@intel.com> References: <1421032741.6201.162.camel@intel.com> X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.25; i586-pc-linux-gnu) MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; boundary="Sig_/_BL/ybTxqIVxyaTnR872ygL"; protocol="application/pgp-signature" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/_BL/ybTxqIVxyaTnR872ygL Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable [Just cc'ing Andrew as this patch is in his tree] On Mon, 12 Jan 2015 11:19:01 +0800 Huang Ying wrote: > > FYI, we noticed the below changes on >=20 > git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > commit 974bb1d5d44f008d7f207437d63d46658ff41dff ("mm: replace remap_file_= pages() syscall with emulation") >=20 > That is, trinity can be used to test some aspect of remap_file_pages. >=20 > +---------------------------------------------------+------------+-------= -----+ > | | d96eeaf2cb | 974bb1= d5d4 | > +---------------------------------------------------+------------+-------= -----+ > | boot_successes | 0 | 0 = | > | boot_failures | 10 | 10 = | > | WARNING:at_net/netlink/genetlink.c:#genl_unbind() | 10 | 5 = | > | backtrace:netlink_setsockopt | 3 | 2 = | > | backtrace:SyS_setsockopt | 3 | 2 = | > | backtrace:SyS_socketcall | 3 | 2 = | > | backtrace:do_group_exit | 10 | 5 = | > | backtrace:SyS_exit_group | 10 | 5 = | > | page_allocation_failure:order:#,mode | 0 | 5 = | > | backtrace:btrfs_test_extent_io | 0 | 5 = | > | backtrace:init_btrfs_fs | 0 | 5 = | > | backtrace:kernel_init_freeable | 0 | 5 = | > +---------------------------------------------------+------------+-------= -----+ >=20 >=20 > [ 29.665081] Bits 55-60 of /proc/PID/pagemap entries are about to stop = being page-shift some time soon. See the linux/Documentation/vm/pagemap.txt= for details. > [ 29.675960] mmap: trinity-c0 (873) uses deprecated remap_file_pages() = syscall. See Documentation/vm/remap_file_pages.txt. > [ 29.681044] ------------[ cut here ]------------ > [ 29.681841] WARNING: CPU: 0 PID: 870 at net/netlink/genetlink.c:1037 g= enl_unbind+0x96/0xaa() > [ 29.683610] warning: process `trinity-c0' used the obsolete bdflush sy= stem call > [ 29.684911] Fix your initscripts? > [ 29.685683] VFS: Warning: trinity-c0 using old stat() call. Recompile = your binary. > [ 29.686963] CPU: 0 PID: 870 Comm: trinity-main Not tainted 3.19.0-rc3-= next-20150109-g06f367d #290 > [ 29.688399] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 > [ 29.689349] 00000000 00000000 d34f3ea4 > [ 29.694083] ------------[ cut here ]------------ > [ 29.695096] WARNING: CPU: 0 PID: 872 at net/netlink/genetlink.c:1037 g= enl_unbind+0x96/0xaa() > [ 29.696724] c15933f7 d34f3ec0 c103c7ff 0000040d c1581310 > [ 29.698051] 00000001 00000001 00000000 d34f3ed0 c103c89c 00000009 000= 00000 d34f3ee8 > [ 29.699904] CPU: 0 PID: 872 Comm: trinity-main Not tainted 3.19.0-rc3-= next-20150109-g06f367d #290 > [ 29.701406] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 > [ 29.702291] 00000000 00000000 d34d9ea4 c15933f7 d34d9ec0 > [ 29.703253] c1581310 c18836fc 00000001 d341f840 00000000 d34f3f0c c15= 7f810 d15b0b40 > [ 29.705361] Call Trace: > [ 29.705868] [] dump_stack+0x16/0x18 > [ 29.706652] [] warn_slowpath_common+0x79/0x90 > [ 29.707496] [] ? genl_unbind+0x96/0xaa > [ 29.708295] [] warn_slowpath_null+0xf/0x13 > [ 29.709142] [] genl_unbind+0x96/0xaa > [ 29.709943] [] netlink_release+0x2d7/0x2ed > [ 29.710776] [] sock_release+0x10/0x5a > [ 29.711531] [] sock_close+0xb/0xf > [ 29.712286] [] __fput+0xf7/0x1f0 > [ 29.713044] [] ____fput+0x8/0xa > [ 29.713794] [] task_work_run+0x4e/0x70 > [ 29.714566] [] do_exit+0x43a/0x9c7 > [ 29.715300] [] do_group_exit+0x4a/0xd6 > [ 29.716111] [] SyS_exit_group+0x11/0x11 > [ 29.716975] [] syscall_call+0x7/0x7 > [ 29.717722] [] ? io_submit_one+0x5b3/0x72a > [ 29.719207] c103c7ff 0000040d c1581310 > [ 29.720122] 00000001 00000001 00000000 d34d9ed0 c103c89c 00000009 000= 00000 d34d9ee8 > [ 29.721973] c1581310 c18836fc 00000004 d0ebb840 00000000 d34d9f0c c15= 7f810 > [ 29.723252] ---[ end trace 28426633f87b780a ]--- > [ 29.724282] ------------[ cut here ]------------ >=20 >=20 > Thanks, > Huang, Ying --=20 Cheers, Stephen Rothwell sfr@canb.auug.org.au --Sig_/_BL/ybTxqIVxyaTnR872ygL Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJUsz7pAAoJEMDTa8Ir7ZwVQRgQAJBUYczejZe0oexrYsrmc8zp RVwwRi7ijii4YL1a+BBVazdxu8cJX0bDBWnJK4vNWqzyC5kiTyjfwPPvWa/8jRYp OE9zWvGfpaVJJk9dSIzB+48jC1PaTno02ivD6m/guQ7ThM7uQhwGPY+vNDaiQY8z sboqXpi0/stjnF3fpkSDkGURTSfsGqEQs+D/MAWmLcPLPp68TbxDn9+N8xYbduDd t6xiWCHxT0hzCzAE+dImuw9Gu8ZqDPqx0HOmkuyd3wiReXibYjBaaTCaGRw2u9Jj tzEjl38eSEryKnRi0yc3Kg+CbGvarKwF0Ls8Ci8jjmWYkb0mSFtKcoVVP8MNE6NO 7QoX4wVVssCBPJi9FfRPu4T2fdnh9LnMAn9kvKIvWDpAtEefqHJSm+BzDMxgBxpx SBGWGBkDQWMNbVLdsEyIq5PBbGzX152RjFqxTpUhM5AerCcRgHXtNKOpbw5AX6hA zdp3jaZs3+F6WSrG1Uv6kM1JKCQG2TpPyPaGDenze0p+YCsyyxUmXorB9XRVn74j iePNicssV91ubgH/zMkWuWBIJ/D09Ys6wfCNaDt4Y+cCThjbk4CocBv/Ux82TMB3 iC1Fko6HJcri6cZz/V0IsZp2PvGuwt9/+ew0Ju3WdEaLaaMmbNXNfDRGgYi2mJbv 8jjJWo/ajk7SkejSD4xR =sDcx -----END PGP SIGNATURE----- --Sig_/_BL/ybTxqIVxyaTnR872ygL--