Message-ID: <CABPcSqKFW4fJpWkcEeMA9-N_dCWqm7f_Yhrk-omXX2MToUWGzw@mail.gmail.com>
Date:	Tue, 26 May 2015 16:44:20 -0700
From:	Jovi Zhangwei <jovi@...udflare.com>
To:	linux-kernel@...r.kernel.org, mgorman@...e.de,
	sasha.levin@...cle.com, n-horiguchi@...jp.nec.com,
	akpm@...ux-foundation.org, hughd@...gle.com, linux-mm@...ck.org,
	vbabka@...e.cz, rientjes@...gle.com
Subject: kernel bug(VM_BUG_ON_PAGE) with 3.18.13 in mm/migrate.c

Hi,

I got below kernel bug error in our 3.18.13 stable kernel.
"kernel BUG at mm/migrate.c:1661!"

Source code:

1657    static int numamigrate_isolate_page(pg_data_t *pgdat, struct page *page)
1658   {
1659            int page_lru;
1660
1661           VM_BUG_ON_PAGE(compound_order(page) &&
!PageTransHuge(page), page);

It's easy to trigger the error by run tcpdump in our system.(not sure
it will easily be reproduced in another system)
"sudo tcpdump -i bond0.100 'tcp port 4242' -c 100000000000 -w 4242.pcap"

Any comments for this bug would be great appreciated. thanks.


dmesg:

[Mon May 25 05:29:33 2015] page:ffffea0015414000 count:66 mapcount:1
mapping:          (null) index:0x0
[Mon May 25 05:29:33 2015] flags: 0x20047580004000(head)
[Mon May 25 05:29:33 2015] page dumped because:
VM_BUG_ON_PAGE(compound_order(page) && !PageTransHuge(page))
[Mon May 25 05:29:33 2015] ------------[ cut here ]------------
[Mon May 25 05:29:33 2015] kernel BUG at mm/migrate.c:1661!
[Mon May 25 05:29:33 2015] invalid opcode: 0000 [#1] SMP
[Mon May 25 05:29:33 2015] Modules linked in: veth xt_comment xt_CT
iptable_raw xt_addrtype ipt_MASQUERADE nf_nat_masquerade_ipv4
iptable_nat nf_nat_ipv4 nf_nat bridge overlay tcp_cubic binfmt_misc
nf_conntrack_ipv6 nf_defrag_ipv6 xt_tcpudp ip6table_filter ip6_tables
nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack
xt_multiport iptable_filter ip_tables x_tables rpcsec_gss_krb5
auth_rpcgss oid_registry nfsv4 nfs lockd grace sunrpc fscache ses
enclosure 8021q garp stp llc bonding ext4 crc16 jbd2 mbcache sg sd_mod
ipmi_watchdog x86_pkg_temp_thermal coretemp kvm_intel iTCO_wdt evdev
kvm crc32c_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper
ablk_helper cryptd ahci libahci ehci_pci mpt3sas raid_class ehci_hcd
ixgbe libata igb scsi_transport_sas mdio usbcore ptp lpc_ich i2c_i801
mfd_core i2c_algo_bit
[Mon May 25 05:29:33 2015]  pps_core usb_common scsi_mod dca i2c_core
wmi acpi_pad acpi_cpufreq md_mod processor thermal_sys button ipmi_si
ipmi_poweroff ipmi_devintf ipmi_msghandler autofs4
[Mon May 25 05:29:33 2015] CPU: 8 PID: 25835 Comm: tcpdump Not tainted
3.18.13-cloudflare #1
[Mon May 25 05:29:33 2015] Hardware name: Quanta Computer Inc D51B-2U
(dual 1G LoM)/S2B-MB (dual 1G LoM), BIOS S2B_3A17 11/07/2014
[Mon May 25 05:29:34 2015] task: ffff880fb4605580 ti: ffff880f7ca54000
task.ti: ffff880f7ca54000
[Mon May 25 05:29:34 2015] RIP: 0010:[<ffffffff8112346c>]
[<ffffffff8112346c>] migrate_misplaced_page+0xeb/0x2a1
[Mon May 25 05:29:34 2015] RSP: 0000:ffff880f7ca57d28  EFLAGS: 00010246
[Mon May 25 05:29:34 2015] RAX: 0000000000000000 RBX: ffffea0015414000
RCX: 0000000000000000
[Mon May 25 05:29:34 2015] RDX: 0000000000000000 RSI: ffff88207fc0c1a8
RDI: 0000000000000540
[Mon May 25 05:29:34 2015] RBP: ffff88207ffd7000 R08: 0000000000000000
R09: 0000000000000000
[Mon May 25 05:29:34 2015] R10: ffffffff81678b40 R11: ffff88207ff9aa00
R12: ffff880f7ca57d38
[Mon May 25 05:29:34 2015] R13: 0000000000000001 R14: 0000000000000000
R15: 0000000000000000
[Mon May 25 05:29:34 2015] FS:  00007fcb89855700(0000)
GS:ffff88207fc00000(0000) knlGS:0000000000000000
[Mon May 25 05:29:34 2015] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Mon May 25 05:29:34 2015] CR2: 00007fcb88859008 CR3: 0000000f6a3f9000
CR4: 00000000001407e0
[Mon May 25 05:29:34 2015] Stack:
[Mon May 25 05:29:34 2015]  0000000000000000 ffffea0015414000
ffff880f7ca57d38 ffff880f7ca57d38
[Mon May 25 05:29:34 2015]  0000000000000001 ffff880f6a3b8450
ffffea003fa43330 0000000000000001
[Mon May 25 05:29:34 2015]  ffffea0015414000 0000000000000000
0000000000000000 ffffffff81100c85
[Mon May 25 05:29:34 2015] Call Trace:
[Mon May 25 05:29:34 2015]  [<ffffffff81100c85>] ? handle_mm_fault+0x945/0xa62
[Mon May 25 05:29:34 2015]  [<ffffffff81105bc6>] ? change_protection+0x12a/0x580
[Mon May 25 05:29:34 2015]  [<ffffffff81034502>] ? __do_page_fault+0x2bf/0x395
[Mon May 25 05:29:34 2015]  [<ffffffff8112dcf6>] ? new_sync_write+0x6a/0x8e
[Mon May 25 05:29:34 2015]  [<ffffffff81158cfe>] ? fsnotify+0x276/0x2bf
[Mon May 25 05:29:34 2015]  [<ffffffff81061467>] ? vtime_account_user+0x35/0x40
[Mon May 25 05:29:34 2015]  [<ffffffff8103460f>] ? do_page_fault+0x37/0x58
[Mon May 25 05:29:34 2015]  [<ffffffff81491082>] ? page_fault+0x22/0x30
[Mon May 25 05:29:34 2015] Code: a5 00 00 00 48 ff c0 48 89 85 b8 5f
02 00 48 8b 03 f6 c4 40 74 17 83 7b 68 00 74 11 48 c7 c6 79 71 7f 81
48 89 df e8 b1 86 fd ff <0f> 0b 48 8b 03 31 c9 f6 c4 40 74 03 8b 4b 68
8b 85 40 5f 02 00
[Mon May 25 05:29:34 2015] RIP  [<ffffffff8112346c>]
migrate_misplaced_page+0xeb/0x2a1
[Mon May 25 05:29:34 2015]  RSP <ffff880f7ca57d28>
[Mon May 25 05:29:34 2015] ---[ end trace 83fa2f6761648dbd ]---
[Mon May 25 05:29:34 2015] device bond0.100 left promiscuous mode
[Mon May 25 05:29:34 2015] device bond0 left promiscuous mode
[Mon May 25 05:29:34 2015] device eth2 left promiscuous mode
[Mon May 25 05:29:34 2015] device eth3 left promiscuous mode
[Mon May 25 05:29:46 2015] device bond0.100 entered promiscuous mode
[Mon May 25 05:29:46 2015] device bond0 entered promiscuous mode
[Mon May 25 05:29:46 2015] device eth2 entered promiscuous mode
[Mon May 25 05:29:46 2015] device eth3 entered promiscuous mode
[Mon May 25 05:29:49 2015] page:ffffea00190d3000 count:66 mapcount:1
mapping:          (null) index:0x0
[Mon May 25 05:29:49 2015] flags: 0x20050100004000(head)
[Mon May 25 05:29:49 2015] page dumped because:
VM_BUG_ON_PAGE(compound_order(page) && !PageTransHuge(page))
[Mon May 25 05:29:49 2015] ------------[ cut here ]------------
[Mon May 25 05:29:49 2015] kernel BUG at mm/migrate.c:1661!
[Mon May 25 05:29:49 2015] invalid opcode: 0000 [#2] SMP
[Mon May 25 05:29:49 2015] Modules linked in: veth xt_comment xt_CT
iptable_raw xt_addrtype ipt_MASQUERADE nf_nat_masquerade_ipv4
iptable_nat nf_nat_ipv4 nf_nat bridge overlay tcp_cubic binfmt_misc
nf_conntrack_ipv6 nf_defrag_ipv6 xt_tcpudp ip6table_filter ip6_tables
nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack
xt_multiport iptable_filter ip_tables x_tables rpcsec_gss_krb5
auth_rpcgss oid_registry nfsv4 nfs lockd grace sunrpc fscache ses
enclosure 8021q garp stp llc bonding ext4 crc16 jbd2 mbcache sg sd_mod
ipmi_watchdog x86_pkg_temp_thermal coretemp kvm_intel iTCO_wdt evdev
kvm crc32c_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper
ablk_helper cryptd ahci libahci ehci_pci mpt3sas raid_class ehci_hcd
ixgbe libata igb scsi_transport_sas mdio usbcore ptp lpc_ich i2c_i801
mfd_core i2c_algo_bit
[Mon May 25 05:29:49 2015]  pps_core usb_common scsi_mod dca i2c_core
wmi acpi_pad acpi_cpufreq md_mod processor thermal_sys button ipmi_si
ipmi_poweroff ipmi_devintf ipmi_msghandler autofs4
[Mon May 25 05:29:49 2015] CPU: 10 PID: 25858 Comm: tcpdump Tainted: G
     D        3.18.13-cloudflare #1
[Mon May 25 05:29:49 2015] Hardware name: Quanta Computer Inc D51B-2U
(dual 1G LoM)/S2B-MB (dual 1G LoM), BIOS S2B_3A17 11/07/2014
[Mon May 25 05:29:49 2015] task: ffff880fb4600e40 ti: ffff8805520ec000
task.ti: ffff8805520ec000
[Mon May 25 05:29:49 2015] RIP: 0010:[<ffffffff8112346c>]
[<ffffffff8112346c>] migrate_misplaced_page+0xeb/0x2a1
[Mon May 25 05:29:49 2015] RSP: 0000:ffff8805520efd28  EFLAGS: 00010246
[Mon May 25 05:29:49 2015] RAX: 0000000000000000 RBX: ffffea00190d3000
RCX: 000000000000649e
[Mon May 25 05:29:49 2015] RDX: 0000000000000000 RSI: 0000000000000296
RDI: 0000000000000900
[Mon May 25 05:29:49 2015] RBP: ffff88207ffd7000 R08: 0000000000000000
R09: 0000000000000000
[Mon May 25 05:29:49 2015] R10: 000000000000b4d0 R11: ffff88207ff9bad0
R12: ffff8805520efd38
[Mon May 25 05:29:49 2015] R13: 0000000000000001 R14: 0000000000000000
R15: 0000000000000000
[Mon May 25 05:29:49 2015] FS:  00007fd334ecd700(0000)
GS:ffff88207fc40000(0000) knlGS:0000000000000000
[Mon May 25 05:29:49 2015] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Mon May 25 05:29:49 2015] CR2: 00007fd334051008 CR3: 0000000f6810a000
CR4: 00000000001407e0
[Mon May 25 05:29:49 2015] Stack:
[Mon May 25 05:29:49 2015]  0000000000000000 ffffea00190d3000
ffff8805520efd38 ffff8805520efd38
[Mon May 25 05:29:49 2015]  0000000000000001 ffff8805a875bd78
ffffea003daa4cf0 0000000000000001
[Mon May 25 05:29:49 2015]  ffffea00190d3000 0000000000000000
0000000000000000 ffffffff81100c85
[Mon May 25 05:29:49 2015] Call Trace:
[Mon May 25 05:29:49 2015]  [<ffffffff81100c85>] ? handle_mm_fault+0x945/0xa62
[Mon May 25 05:29:49 2015]  [<ffffffff81105bc6>] ? change_protection+0x12a/0x580
[Mon May 25 05:29:49 2015]  [<ffffffff81034502>] ? __do_page_fault+0x2bf/0x395
[Mon May 25 05:29:49 2015]  [<ffffffff8112dcf6>] ? new_sync_write+0x6a/0x8e
[Mon May 25 05:29:49 2015]  [<ffffffff81158cfe>] ? fsnotify+0x276/0x2bf
[Mon May 25 05:29:49 2015]  [<ffffffff81061467>] ? vtime_account_user+0x35/0x40
[Mon May 25 05:29:49 2015]  [<ffffffff8103460f>] ? do_page_fault+0x37/0x58
[Mon May 25 05:29:49 2015]  [<ffffffff81491082>] ? page_fault+0x22/0x30
[Mon May 25 05:29:49 2015] Code: a5 00 00 00 48 ff c0 48 89 85 b8 5f
02 00 48 8b 03 f6 c4 40 74 17 83 7b 68 00 74 11 48 c7 c6 79 71 7f 81
48 89 df e8 b1 86 fd ff <0f> 0b 48 8b 03 31 c9 f6 c4 40 74 03 8b 4b 68
8b 85 40 5f 02 00
[Mon May 25 05:29:49 2015] RIP  [<ffffffff8112346c>]
migrate_misplaced_page+0xeb/0x2a1
[Mon May 25 05:29:49 2015]  RSP <ffff8805520efd28>
[Mon May 25 05:29:49 2015] ---[ end trace 83fa2f6761648dbe ]---
[Mon May 25 05:29:49 2015] device bond0.100 left promiscuous mode
[Mon May 25 05:29:49 2015] device bond0 left promiscuous mode
[Mon May 25 05:29:49 2015] device eth2 left promiscuous mode
[Mon May 25 05:29:49 2015] device eth3 left promiscuous mode
[Mon May 25 05:30:07 2015] device bond0.100 entered promiscuous mode
[Mon May 25 05:30:07 2015] device bond0 entered promiscuous mode
[Mon May 25 05:30:07 2015] device eth2 entered promiscuous mode
[Mon May 25 05:30:07 2015] device eth3 entered promiscuous mode
[Mon May 25 05:30:42 2015] page:ffffea00153cf000 count:66 mapcount:1
mapping:          (null) index:0x0
[Mon May 25 05:30:42 2015] flags: 0x20050c80004000(head)
[Mon May 25 05:30:42 2015] page dumped because:
VM_BUG_ON_PAGE(compound_order(page) && !PageTransHuge(page))
[Mon May 25 05:30:42 2015] ------------[ cut here ]------------
[Mon May 25 05:30:42 2015] kernel BUG at mm/migrate.c:1661!
[Mon May 25 05:30:42 2015] invalid opcode: 0000 [#3]
[Mon May 25 05:30:42 2015] SMP

[Mon May 25 05:30:42 2015] Modules linked in:
[Mon May 25 05:30:42 2015]  veth
[Mon May 25 05:30:42 2015]  xt_comment
[Mon May 25 05:30:42 2015]  xt_CT
[Mon May 25 05:30:42 2015]  iptable_raw
[Mon May 25 05:30:42 2015]  xt_addrtype
[Mon May 25 05:30:42 2015]  ipt_MASQUERADE
[Mon May 25 05:30:42 2015]  nf_nat_masquerade_ipv4
[Mon May 25 05:30:42 2015]  iptable_nat
[Mon May 25 05:30:42 2015]  nf_nat_ipv4
[Mon May 25 05:30:42 2015]  nf_nat
[Mon May 25 05:30:42 2015]  bridge
[Mon May 25 05:30:42 2015]  overlay
[Mon May 25 05:30:42 2015]  tcp_cubic
[Mon May 25 05:30:42 2015]  binfmt_misc
[Mon May 25 05:30:42 2015]  nf_conntrack_ipv6
[Mon May 25 05:30:42 2015]  nf_defrag_ipv6
[Mon May 25 05:30:42 2015]  xt_tcpudp
[Mon May 25 05:30:42 2015]  ip6table_filter
[Mon May 25 05:30:42 2015]  ip6_tables
[Mon May 25 05:30:42 2015]  nf_conntrack_ipv4
[Mon May 25 05:30:42 2015]  nf_defrag_ipv4
[Mon May 25 05:30:42 2015]  xt_conntrack
[Mon May 25 05:30:42 2015]  nf_conntrack
[Mon May 25 05:30:42 2015]  xt_multiport
[Mon May 25 05:30:42 2015]  iptable_filter
[Mon May 25 05:30:42 2015]  ip_tables
[Mon May 25 05:30:42 2015]  x_tables
[Mon May 25 05:30:42 2015]  rpcsec_gss_krb5
[Mon May 25 05:30:42 2015]  auth_rpcgss
[Mon May 25 05:30:42 2015]  oid_registry
[Mon May 25 05:30:42 2015]  nfsv4
[Mon May 25 05:30:42 2015]  nfs
[Mon May 25 05:30:42 2015]  lockd
[Mon May 25 05:30:42 2015]  grace
[Mon May 25 05:30:42 2015]  sunrpc
[Mon May 25 05:30:42 2015]  fscache
[Mon May 25 05:30:42 2015]  ses
[Mon May 25 05:30:42 2015]  enclosure
[Mon May 25 05:30:42 2015]  8021q
[Mon May 25 05:30:42 2015]  garp
[Mon May 25 05:30:42 2015]  stp
[Mon May 25 05:30:42 2015]  llc
[Mon May 25 05:30:42 2015]  bonding
[Mon May 25 05:30:42 2015]  ext4
[Mon May 25 05:30:42 2015]  crc16
[Mon May 25 05:30:42 2015]  jbd2
[Mon May 25 05:30:42 2015]  mbcache
[Mon May 25 05:30:42 2015]  sg
[Mon May 25 05:30:42 2015]  sd_mod
[Mon May 25 05:30:42 2015]  ipmi_watchdog
[Mon May 25 05:30:42 2015]  x86_pkg_temp_thermal
[Mon May 25 05:30:42 2015]  coretemp kvm_intel iTCO_wdt evdev kvm
crc32c_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper
ablk_helper cryptd ahci libahci ehci_pci mpt3sas raid_class ehci_hcd
ixgbe libata igb scsi_transport_sas mdio usbcore ptp lpc_ich i2c_i801
mfd_core i2c_algo_bit pps_core usb_common scsi_mod dca i2c_core wmi
acpi_pad acpi_cpufreq md_mod processor thermal_sys button ipmi_si
ipmi_poweroff ipmi_devintf ipmi_msghandler autofs4
[Mon May 25 05:30:42 2015] CPU: 10 PID: 25881 Comm: tcpdump Tainted: G
     D        3.18.13-cloudflare #1
[Mon May 25 05:30:42 2015] Hardware name: Quanta Computer Inc D51B-2U
(dual 1G LoM)/S2B-MB (dual 1G LoM), BIOS S2B_3A17 11/07/2014
[Mon May 25 05:30:42 2015] task: ffff880fb4601c80 ti: ffff880d790fc000
task.ti: ffff880d790fc000
[Mon May 25 05:30:42 2015] RIP: 0010:[<ffffffff8112346c>]
[<ffffffff8112346c>] migrate_misplaced_page+0xeb/0x2a1
[Mon May 25 05:30:42 2015] RSP: 0000:ffff880d790ffd28  EFLAGS: 00010246
[Mon May 25 05:30:42 2015] RAX: 0000000000000000 RBX: ffffea00153cf000
RCX: 000000000000670d
[Mon May 25 05:30:42 2015] RDX: 0000000000000000 RSI: 0000000000000296
RDI: 0000000000000520
[Mon May 25 05:30:42 2015] RBP: ffff88207ffd7000 R08: 0000000000000000
R09: 0000000000000000
[Mon May 25 05:30:42 2015] R10: 0000000000000000 R11: ffff88207ff9cb0c
R12: ffff880d790ffd38
[Mon May 25 05:30:42 2015] R13: 0000000000000001 R14: 0000000000000000
R15: 0000000000000000
[Mon May 25 05:30:42 2015] FS:  00007f9fa7c98700(0000)
GS:ffff88207fc40000(0000) knlGS:0000000000000000
[Mon May 25 05:30:42 2015] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Mon May 25 05:30:42 2015] CR2: 00007f9fa6ddc008 CR3: 0000000fe9391000
CR4: 00000000001407e0
[Mon May 25 05:30:42 2015] Stack:
[Mon May 25 05:30:42 2015]  0000000000000001 ffffea00153cf000
ffff880d790ffd38 ffff880d790ffd38
[Mon May 25 05:30:42 2015]  ffffea00153cefc0 ffff880f89deeb80
ffffea003da83f70 0000000000000001
[Mon May 25 05:30:42 2015]  ffffea00153cf000 0000000000000000
0000000000000000 ffffffff81100c85
[Mon May 25 05:30:42 2015] Call Trace:
[Mon May 25 05:30:42 2015]  [<ffffffff81100c85>] ? handle_mm_fault+0x945/0xa62
[Mon May 25 05:30:42 2015]  [<ffffffff81034502>] ? __do_page_fault+0x2bf/0x395
[Mon May 25 05:30:42 2015]  [<ffffffff8112dcf6>] ? new_sync_write+0x6a/0x8e
[Mon May 25 05:30:42 2015]  [<ffffffff81158cfe>] ? fsnotify+0x276/0x2bf
[Mon May 25 05:30:42 2015]  [<ffffffff81061467>] ? vtime_account_user+0x35/0x40
[Mon May 25 05:30:42 2015]  [<ffffffff8103460f>] ? do_page_fault+0x37/0x58
[Mon May 25 05:30:42 2015]  [<ffffffff81491082>] ? page_fault+0x22/0x30
[Mon May 25 05:30:42 2015] Code: a5 00 00 00 48 ff c0 48 89 85 b8 5f
02 00 48 8b 03 f6 c4 40 74 17 83 7b 68 00 74 11 48 c7 c6 79 71 7f 81
48 89 df e8 b1 86 fd ff <0f> 0b 48 8b 03 31 c9 f6 c4 40 74 03 8b 4b 68
8b 85 40 5f 02 00
[Mon May 25 05:30:42 2015] RIP  [<ffffffff8112346c>]
migrate_misplaced_page+0xeb/0x2a1
[Mon May 25 05:30:42 2015]  RSP <ffff880d790ffd28>
[Mon May 25 05:30:42 2015] ---[ end trace 83fa2f6761648dbf ]---
[Mon May 25 05:30:42 2015] device bond0.100 left promiscuous mode
[Mon May 25 05:30:42 2015] device bond0 left promiscuous mode
[Mon May 25 05:30:42 2015] device eth2 left promiscuous mode
[Mon May 25 05:30:42 2015] device eth3 left promiscuous mode
[Mon May 25 05:32:03 2015] device bond0.100 entered promiscuous mode
[Mon May 25 05:32:03 2015] device bond0 entered promiscuous mode
[Mon May 25 05:32:03 2015] device eth2 entered promiscuous mode
[Mon May 25 05:32:03 2015] device eth3 entered promiscuous mode
[Mon May 25 05:32:29 2015] page:ffffea006c581000 count:66 mapcount:1
mapping:          (null) index:0x0
[Mon May 25 05:32:29 2015] flags: 0x6002ba00004000(head)
[Mon May 25 05:32:29 2015] page dumped because:
VM_BUG_ON_PAGE(compound_order(page) && !PageTransHuge(page))
[Mon May 25 05:32:29 2015] ------------[ cut here ]------------
[Mon May 25 05:32:29 2015] kernel BUG at mm/migrate.c:1661!
[Mon May 25 05:32:29 2015] invalid opcode: 0000 [#4] SMP
[Mon May 25 05:32:29 2015] Modules linked in: veth xt_comment xt_CT
iptable_raw xt_addrtype ipt_MASQUERADE nf_nat_masquerade_ipv4
iptable_nat nf_nat_ipv4 nf_nat bridge overlay tcp_cubic binfmt_misc
nf_conntrack_ipv6 nf_defrag_ipv6 xt_tcpudp ip6table_filter ip6_tables
nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack
xt_multiport iptable_filter ip_tables x_tables rpcsec_gss_krb5
auth_rpcgss oid_registry nfsv4 nfs lockd grace sunrpc fscache ses
enclosure 8021q garp stp llc bonding ext4 crc16 jbd2 mbcache sg sd_mod
ipmi_watchdog x86_pkg_temp_thermal coretemp kvm_intel iTCO_wdt evdev
kvm crc32c_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper
ablk_helper cryptd ahci libahci ehci_pci mpt3sas raid_class ehci_hcd
ixgbe libata igb scsi_transport_sas mdio usbcore ptp lpc_ich i2c_i801
mfd_core i2c_algo_bit
[Mon May 25 05:32:29 2015]  pps_core usb_common scsi_mod dca i2c_core
wmi acpi_pad acpi_cpufreq md_mod processor thermal_sys button ipmi_si
ipmi_poweroff ipmi_devintf ipmi_msghandler autofs4
[Mon May 25 05:32:29 2015] CPU: 5 PID: 25972 Comm: tcpdump Tainted: G
    D        3.18.13-cloudflare #1
[Mon May 25 05:32:29 2015] Hardware name: Quanta Computer Inc D51B-2U
(dual 1G LoM)/S2B-MB (dual 1G LoM), BIOS S2B_3A17 11/07/2014
[Mon May 25 05:32:29 2015] task: ffff881dee014740 ti: ffff881d5eb3c000
task.ti: ffff881d5eb3c000
[Mon May 25 05:32:29 2015] RIP: 0010:[<ffffffff8112346c>]
[<ffffffff8112346c>] migrate_misplaced_page+0xeb/0x2a1
[Mon May 25 05:32:29 2015] RSP: 0000:ffff881d5eb3fd28  EFLAGS: 00010246
[Mon May 25 05:32:29 2015] RAX: 0000000000000000 RBX: ffffea006c581000
RCX: 0000000000006b84
[Mon May 25 05:32:29 2015] RDX: 0000000000000000 RSI: 0000000000000296
RDI: 0000000000000c40
[Mon May 25 05:32:29 2015] RBP: ffff88107ffda000 R08: 0000000000000000
R09: 0000000000000000
[Mon May 25 05:32:29 2015] R10: 000000000000bb40 R11: ffff88207ff9de94
R12: ffff881d5eb3fd38
[Mon May 25 05:32:29 2015] R13: 0000000000000000 R14: 0000000000000001
R15: 0000000000000000
[Mon May 25 05:32:29 2015] FS:  00007f31bdaf0700(0000)
GS:ffff88103fca0000(0000) knlGS:0000000000000000
[Mon May 25 05:32:29 2015] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Mon May 25 05:32:29 2015] CR2: 00007f31bcc74008 CR3: 0000001d74b8c000
CR4: 00000000001407e0
[Mon May 25 05:32:29 2015] Stack:
[Mon May 25 05:32:29 2015]  0000000000000001 ffffea006c581000
ffff881d5eb3fd38 ffff881d5eb3fd38
[Mon May 25 05:32:29 2015]  ffffffffffffffff ffff880fe2332228
ffffea00757aadf0 0000000000000000
[Mon May 25 05:32:29 2015]  ffffea006c581000 0000000000000001
0000000000000000 ffffffff81100c85
[Mon May 25 05:32:29 2015] Call Trace:
[Mon May 25 05:32:29 2015]  [<ffffffff81100c85>] ? handle_mm_fault+0x945/0xa62
[Mon May 25 05:32:29 2015]  [<ffffffff81038cbc>] ? flush_tlb_mm_range+0xb5/0xdb
[Mon May 25 05:32:29 2015]  [<ffffffff81105bc6>] ? change_protection+0x12a/0x580
[Mon May 25 05:32:29 2015]  [<ffffffff81034502>] ? __do_page_fault+0x2bf/0x395
[Mon May 25 05:32:29 2015]  [<ffffffff81061467>] ? vtime_account_user+0x35/0x40
[Mon May 25 05:32:29 2015]  [<ffffffff8103460f>] ? do_page_fault+0x37/0x58
[Mon May 25 05:32:29 2015]  [<ffffffff81491082>] ? page_fault+0x22/0x30
[Mon May 25 05:32:29 2015] Code: a5 00 00 00 48 ff c0 48 89 85 b8 5f
02 00 48 8b 03 f6 c4 40 74 17 83 7b 68 00 74 11 48 c7 c6 79 71 7f 81
48 89 df e8 b1 86 fd ff <0f> 0b 48 8b 03 31 c9 f6 c4 40 74 03 8b 4b 68
8b 85 40 5f 02 00
[Mon May 25 05:32:29 2015] RIP  [<ffffffff8112346c>]
migrate_misplaced_page+0xeb/0x2a1
[Mon May 25 05:32:29 2015]  RSP <ffff881d5eb3fd28>
[Mon May 25 05:32:29 2015] ---[ end trace 83fa2f6761648dc0 ]---
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