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Message-ID: <1421032741.6201.162.camel@intel.com>
Date: Mon, 12 Jan 2015 11:19:01 +0800
From: Huang Ying <ying.huang@...el.com>
To: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>,
LKML <linux-kernel@...r.kernel.org>, LKP ML <lkp@...org>
Subject: [LKP] [mm] Find a way to test remap_file_pages
FYI, we noticed the below changes on
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit 974bb1d5d44f008d7f207437d63d46658ff41dff ("mm: replace remap_file_pages() syscall with emulation")
That is, trinity can be used to test some aspect of remap_file_pages.
+---------------------------------------------------+------------+------------+
| | d96eeaf2cb | 974bb1d5d4 |
+---------------------------------------------------+------------+------------+
| 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 |
+---------------------------------------------------+------------+------------+
[ 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 genl_unbind+0x96/0xaa()
[ 29.683610] warning: process `trinity-c0' used the obsolete bdflush system 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 genl_unbind+0x96/0xaa()
[ 29.696724] c15933f7 d34f3ec0 c103c7ff 0000040d c1581310
[ 29.698051] 00000001 00000001 00000000 d34f3ed0 c103c89c 00000009 00000000 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 c157f810 d15b0b40
[ 29.705361] Call Trace:
[ 29.705868] [<c15933f7>] dump_stack+0x16/0x18
[ 29.706652] [<c103c7ff>] warn_slowpath_common+0x79/0x90
[ 29.707496] [<c1581310>] ? genl_unbind+0x96/0xaa
[ 29.708295] [<c103c89c>] warn_slowpath_null+0xf/0x13
[ 29.709142] [<c1581310>] genl_unbind+0x96/0xaa
[ 29.709943] [<c157f810>] netlink_release+0x2d7/0x2ed
[ 29.710776] [<c1553efd>] sock_release+0x10/0x5a
[ 29.711531] [<c1553f52>] sock_close+0xb/0xf
[ 29.712286] [<c1109a69>] __fput+0xf7/0x1f0
[ 29.713044] [<c1109b88>] ____fput+0x8/0xa
[ 29.713794] [<c1052412>] task_work_run+0x4e/0x70
[ 29.714566] [<c103e771>] do_exit+0x43a/0x9c7
[ 29.715300] [<c103ed6f>] do_group_exit+0x4a/0xd6
[ 29.716111] [<c103ee0c>] SyS_exit_group+0x11/0x11
[ 29.716975] [<c1598cfd>] syscall_call+0x7/0x7
[ 29.717722] [<c1590000>] ? io_submit_one+0x5b3/0x72a
[ 29.719207] c103c7ff 0000040d c1581310
[ 29.720122] 00000001 00000001 00000000 d34d9ed0 c103c89c 00000009 00000000 d34d9ee8
[ 29.721973] c1581310 c18836fc 00000004 d0ebb840 00000000 d34d9f0c c157f810
[ 29.723252] ---[ end trace 28426633f87b780a ]---
[ 29.724282] ------------[ cut here ]------------
Thanks,
Huang, Ying
View attachment "config-3.19.0-rc3-00083-g974bb1d" of type "text/plain" (67906 bytes)
View attachment ".dmesg" of type "text/plain" (255165 bytes)
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