** Description changed:

- I have multiple instances of this dev_disable_lro error in kern.log. Also 
seeing this: 
- systemd-udevd[1452]: timeout: killing 'bridge-network-interface' [2765] 
- <4>May 1 22:56:42 xxx kernel: [ 404.520990] bonding: bond0: Warning: No 
802.3ad response from the link partner for any adapters in the bond 
- <4>May 1 22:56:44 xxx kernel: [ 406.926429] bonding: bond0: Warning: No 
802.3ad response from the link partner for any adapters in the bond 
- <4>May 1 22:56:45 xxx kernel: [ 407.569020] ------------[ cut here 
]------------ 
- <4>May 1 22:56:45 xxx kernel: [ 407.569029] WARNING: CPU: 28 PID: 34085 at 
/build/linux-90Gc2C/linux-3.13.0/net/core/dev.c:1433 
dev_disable_lro+0x87/0x90() 
- <4>May 1 22:56:45 xxx kernel: [ 407.569032] netdevice: bond0.2004 
- <4>May 1 22:56:45 xxx kernel: [ 407.569032] failed to disable LRO! 
- <4>May 1 22:56:45 xxx kernel: [ 407.569035] Modules linked in: 8021q garp mrp 
bridge stp llc bonding iptable_filter ip_tables x_tables nf_conntrack_proto_gre 
nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack 
ipmi_devintf mxm_wmi dcdbas x86_pkg_temp_thermal coretemp kvm_intel kvm 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw 
gf128mul glue_helper ablk_helper cryptd lpc_ich mei_me mei ipmi_si shpchp wmi 
acpi_power_meter mac_hid xfs libcrc32c raid10 usb_storage raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 
raid0 igb ixgbe i2c_algo_bit multipath ahci dca ptp libahci pps_core linear 
megaraid_sas mdio dm_multipath scsi_dh 
- <4>May 1 22:56:45 xxx kernel: [ 407.569112] CPU: 28 PID: 34085 Comm: brctl 
Not tainted 3.13.0-142-generic #191-Ubuntu 
- <4>May 1 22:56:45 xxx kernel: [ 407.569115] Hardware name: Dell Inc. 
PowerEdge R730xd/072T6D, BIOS 2.7.1 001/22/2018 
- <4>May 1 22:56:45 xxx kernel: [ 407.569118] 0000000000000000 ffff881fcc753c70 
ffffffff8172e7fc ffff881fcc753cb8 
- <4>May 1 22:56:45 xxx kernel: [ 407.569129] 0000000000000009 ffff881fcc753ca8 
ffffffff8106afad ffff883fcc6f8000 
- <4>May 1 22:56:45 xxx kernel: [ 407.569139] ffff883fcc696880 ffff883fcc6f8000 
0000000000000000 ffff881fce82dd40 
- <4>May 1 22:56:45 xxx kernel: [ 407.569150] Call Trace: 
- <4>May 1 22:56:45 xxx kernel: [ 407.569160] [<ffffffff8172e7fc>] 
dump_stack+0x64/0x82 
- <4>May 1 22:56:45 xxx kernel: [ 407.569168] [<ffffffff8106afad>] 
warn_slowpath_common+0x7d/0xa0 
- <4>May 1 22:56:45 xxx kernel: [ 407.569175] [<ffffffff8106b01c>] 
warn_slowpath_fmt+0x4c/0x50 
- <4>May 1 22:56:45 xxx kernel: [ 407.569183] [<ffffffff816342f7>] 
dev_disable_lro+0x87/0x90 
- <4>May 1 22:56:45 xxx kernel: [ 407.569195] [<ffffffffa03f2213>] 
br_add_if+0x1f3/0x430 [bridge] 
- <4>May 1 22:56:45 xxx kernel: [ 407.569205] [<ffffffffa03f2c4d>] 
add_del_if+0x5d/0x90 [bridge] 
- <4>May 1 22:56:45 xxx kernel: [ 407.569215] [<ffffffffa03f353b>] 
br_dev_ioctl+0x5b/0x90 [bridge] 
- <4>May 1 22:56:45 xxx kernel: [ 407.569223] [<ffffffff81646853>] 
dev_ifsioc+0x313/0x360 
- <4>May 1 22:56:45 xxx kernel: [ 407.569230] [<ffffffff8162dac9>] ? 
dev_get_by_name_rcu+0x69/0x90 
- <4>May 1 22:56:45 xxx kernel: [ 407.569237] [<ffffffff81646989>] 
dev_ioctl+0xe9/0x590 
- <4>May 1 22:56:45 xxx kernel: [ 407.569245] [<ffffffff81614b25>] 
sock_do_ioctl+0x45/0x50 
- <4>May 1 22:56:45 xxx kernel: [ 407.569252] [<ffffffff81615050>] 
sock_ioctl+0x1f0/0x2c0 
- <4>May 1 22:56:45 xxx kernel: [ 407.569260] [<ffffffff811d6670>] 
do_vfs_ioctl+0x2e0/0x4c0 
- <4>May 1 22:56:45 xxx kernel: [ 407.569267] [<ffffffff811c4e2e>] ? 
____fput+0xe/0x10 
- <4>May 1 22:56:45 xxx kernel: [ 407.569273] [<ffffffff811d68d1>] 
SyS_ioctl+0x81/0xa0 
- <4>May 1 22:56:45 xxx kernel: [ 407.569283] [<ffffffff8173f8a5>] 
system_call_fastpath+0x2f/0x34 
- <4>May 1 22:56:45 xxx kernel: [ 407.569287] ---[ end trace df5aa31d75a7e2b1 
]--- 
- <4>May 1 22:56:54 xxx kernel: [ 416.320138] bonding: bond1: Warning: the 
permanent HWaddr of enp131s0f0 - a0:36:9f:c1:25:d0 - is still in use by bond1. 
Set the HWaddr of enp131s0f0 to a different address to avoid conflicts. 
- <4>May 1 22:57:00 xxx kernel: [ 422.362677] bonding: bond1: Warning: No 
802.3ad response from the link partner for any adapters in the bond 
- <4>May 1 22:57:07 xxx kernel: [ 429.522843] ------------[ cut here 
]------------ 
- And here: 
+ [impact]
  
- <4>May 1 22:57:07 xxx kernel: [ 429.522843] ------------[ cut here 
]------------ 
- <4>May 1 22:57:07 xxx kernel: [ 429.522853] WARNING: CPU: 0 PID: 34191 at 
/build/linux-90Gc2C/linux-3.13.0/net/core/dev.c:1433 
dev_disable_lro+0x87/0x90() 
- <4>May 1 22:57:07 xxx kernel: [ 429.522857] netdevice: bond1.2001 
- <4>May 1 22:57:07 xxx kernel: [ 429.522857] failed to disable LRO! 
- <4>May 1 22:57:07 xxx kernel: [ 429.522861] Modules linked in: 8021q garp mrp 
bridge stp llc bonding iptable_filter ip_tables x_tables nf_conntrack_proto_gre 
nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack 
ipmi_devintf mxm_wmi dcdbas x86_pkg_temp_thermal coretemp kvm_intel kvm 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw 
gf128mul glue_helper ablk_helper cryptd lpc_ich mei_me mei ipmi_si shpchp wmi 
acpi_power_meter mac_hid xfs libcrc32c raid10 usb_storage raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 
raid0 igb ixgbe i2c_algo_bit multipath ahci dca ptp libahci pps_core linear 
megaraid_sas mdio dm_multipath scsi_dh 
- <4>May 1 22:57:07 xxx kernel: [ 429.522933] CPU: 0 PID: 34191 Comm: brctl 
Tainted: G W 3.13.0-142-generic #191-Ubuntu 
- <4>May 1 22:57:07 xxx kernel: [ 429.522937] Hardware name: Dell Inc. 
PowerEdge R730xd/072T6D, BIOS 2.7.1 001/22/2018 
- <4>May 1 22:57:07 xxx kernel: [ 429.522940] 0000000000000000 ffff88056ca57c70 
ffffffff8172e7fc ffff88056ca57cb8 
- <4>May 1 22:57:07 xxx kernel: [ 429.522951] 0000000000000009 ffff88056ca57ca8 
ffffffff8106afad ffff883fcc9a3000 
- <4>May 1 22:57:07 xxx kernel: [ 429.522961] ffff881fce800880 ffff883fcc9a3000 
0000000000000000 ffff883fcdb93d40 
- <4>May 1 22:57:07 xxx kernel: [ 429.522972] Call Trace: 
- <4>May 1 22:57:07 xxx kernel: [ 429.522981] [<ffffffff8172e7fc>] 
dump_stack+0x64/0x82 
- <4>May 1 22:57:07 xxx kernel: [ 429.522989] [<ffffffff8106afad>] 
warn_slowpath_common+0x7d/0xa0 
- <4>May 1 22:57:07 xxx kernel: [ 429.522996] [<ffffffff8106b01c>] 
warn_slowpath_fmt+0x4c/0x50 
- <4>May 1 22:57:07 xxx kernel: [ 429.523004] [<ffffffff816342f7>] 
dev_disable_lro+0x87/0x90 
- <4>May 1 22:57:07 xxx kernel: [ 429.523016] [<ffffffffa03f2213>] 
br_add_if+0x1f3/0x430 [bridge] 
- <4>May 1 22:57:07 xxx kernel: [ 429.523027] [<ffffffffa03f2c4d>] 
add_del_if+0x5d/0x90 [bridge] 
- <4>May 1 22:57:07 xxx kernel: [ 429.523038] [<ffffffffa03f353b>] 
br_dev_ioctl+0x5b/0x90 [bridge] 
- <4>May 1 22:57:07 xxx kernel: [ 429.523047] [<ffffffff81646853>] 
dev_ifsioc+0x313/0x360 
- <4>May 1 22:57:07 xxx kernel: [ 429.523054] [<ffffffff8162dac9>] ? 
dev_get_by_name_rcu+0x69/0x90 
- <4>May 1 22:57:07 xxx kernel: [ 429.523061] [<ffffffff81646989>] 
dev_ioctl+0xe9/0x590 
- <4>May 1 22:57:07 xxx kernel: [ 429.523070] [<ffffffff81614b25>] 
sock_do_ioctl+0x45/0x50 
- <4>May 1 22:57:07 xxx kernel: [ 429.523076] [<ffffffff81615050>] 
sock_ioctl+0x1f0/0x2c0 
- <4>May 1 22:57:07 xxx kernel: [ 429.523084] [<ffffffff811d6670>] 
do_vfs_ioctl+0x2e0/0x4c0 
- <4>May 1 22:57:07 xxx kernel: [ 429.523091] [<ffffffff811c4e2e>] ? 
____fput+0xe/0x10 
- <4>May 1 22:57:07 xxx kernel: [ 429.523098] [<ffffffff811d68d1>] 
SyS_ioctl+0x81/0xa0 
- <4>May 1 22:57:07 xxx kernel: [ 429.523107] [<ffffffff8173f8a5>] 
system_call_fastpath+0x2f/0x34 
- <4>May 1 22:57:07 xxx kernel: [ 429.523111] ---[ end trace df5aa31d75a7e2b2 
]--- 
+ with a specific network configuration, a kernel WARNING is issued.
  
- root@xxx:/var/log# ip link|grep enp 
- 6: enp3s0f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9100 qdisc mq master 
bond0 state UP mode DEFAULT group default qlen 1000 
- 7: enp3s0f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9100 qdisc mq master 
bond1 state UP mode DEFAULT group default qlen 1000 
- 8: enp131s0f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9100 qdisc mq 
master bond1 state UP mode DEFAULT group default qlen 1000 
- 9: enp131s0f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9100 qdisc mq 
master bond0 state UP mode DEFAULT group default qlen 1000 
- root@xxx:/ar/log# ethtool -i enp3s0f0 
- driver: ixgbe 
- version: 3.15.1-k 
- firmware-version: 0x800008bd 
- bus-info: 0000:03:00.0 
- supports-statistics: yes 
- supports-test: yes 
- supports-eeprom-access: yes 
- supports-register-dump: yes 
- supports-priv-flags: no 
- root@xxx:/var/log# lsb_release -a 
- No LSB modules are available. 
- Distributor ID: Ubuntu 
- Description: Ubuntu 14.04.5 LTS 
- Release: 14.04 
- Codename: trusty 
- root@xxx:/var/log# cat /proc/version 
+ [test case]
+ 
+ configure a trusty system with e/n/i like this:
+ 
+ auto bond0.2004
+ iface bond0.2004 inet manual
+ mtu 9100
+ vlan-raw-device bond0
+ 
+ auto bond0
+ iface bond0 inet manual
+ mtu 9100
+ bond-slaves eth1 eth2
+ bond-mode 802.3ad
+ bond-miimon 100
+ bond-use-carrier 1
+ bond-lacp-rate fast
+ bond-updelay 3000
+ bond-downdelay 1000
+ bond-ad-select bandwidth
+ bond-xmit-hash-policy layer3+4
+ post-up sleep 45
+ 
+ auto br-mesh
+ iface br-mesh inet static
+ bridge_ports bond0.2004
+ address 192.168.210.3/24
+ 
+ auto eth1
+ iface eth1 inet manual
+ mtu 9100
+ bond-master bond0
+ 
+ auto eth2
+ iface eth2 inet manual
+ mtu 9100
+ bond-master bond0
+ 
+ 
+ adjusting the interface names as needed, of course.  then reboot, and the 
kernel WARNING will appear in the dmesg.
+ 
+ [regression potential]
+ 
+ the kernel patch has the potential to incorrectly set, or incorrectly
+ not set, features on devices.
+ 
+ [other info]
+ 
+ previous bug description:
+ 
+ 
+ I have multiple instances of this dev_disable_lro error in kern.log. Also 
seeing this:
+ systemd-udevd[1452]: timeout: killing 'bridge-network-interface' [2765]
+ <4>May 1 22:56:42 xxx kernel: [ 404.520990] bonding: bond0: Warning: No 
802.3ad response from the link partner for any adapters in the bond
+ <4>May 1 22:56:44 xxx kernel: [ 406.926429] bonding: bond0: Warning: No 
802.3ad response from the link partner for any adapters in the bond
+ <4>May 1 22:56:45 xxx kernel: [ 407.569020] ------------[ cut here 
]------------
+ <4>May 1 22:56:45 xxx kernel: [ 407.569029] WARNING: CPU: 28 PID: 34085 at 
/build/linux-90Gc2C/linux-3.13.0/net/core/dev.c:1433 dev_disable_lro+0x87/0x90()
+ <4>May 1 22:56:45 xxx kernel: [ 407.569032] netdevice: bond0.2004
+ <4>May 1 22:56:45 xxx kernel: [ 407.569032] failed to disable LRO!
+ <4>May 1 22:56:45 xxx kernel: [ 407.569035] Modules linked in: 8021q garp mrp 
bridge stp llc bonding iptable_filter ip_tables x_tables nf_conntrack_proto_gre 
nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack 
ipmi_devintf mxm_wmi dcdbas x86_pkg_temp_thermal coretemp kvm_intel kvm 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw 
gf128mul glue_helper ablk_helper cryptd lpc_ich mei_me mei ipmi_si shpchp wmi 
acpi_power_meter mac_hid xfs libcrc32c raid10 usb_storage raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 
raid0 igb ixgbe i2c_algo_bit multipath ahci dca ptp libahci pps_core linear 
megaraid_sas mdio dm_multipath scsi_dh
+ <4>May 1 22:56:45 xxx kernel: [ 407.569112] CPU: 28 PID: 34085 Comm: brctl 
Not tainted 3.13.0-142-generic #191-Ubuntu
+ <4>May 1 22:56:45 xxx kernel: [ 407.569115] Hardware name: Dell Inc. 
PowerEdge R730xd/072T6D, BIOS 2.7.1 001/22/2018
+ <4>May 1 22:56:45 xxx kernel: [ 407.569118] 0000000000000000 ffff881fcc753c70 
ffffffff8172e7fc ffff881fcc753cb8
+ <4>May 1 22:56:45 xxx kernel: [ 407.569129] 0000000000000009 ffff881fcc753ca8 
ffffffff8106afad ffff883fcc6f8000
+ <4>May 1 22:56:45 xxx kernel: [ 407.569139] ffff883fcc696880 ffff883fcc6f8000 
0000000000000000 ffff881fce82dd40
+ <4>May 1 22:56:45 xxx kernel: [ 407.569150] Call Trace:
+ <4>May 1 22:56:45 xxx kernel: [ 407.569160] [<ffffffff8172e7fc>] 
dump_stack+0x64/0x82
+ <4>May 1 22:56:45 xxx kernel: [ 407.569168] [<ffffffff8106afad>] 
warn_slowpath_common+0x7d/0xa0
+ <4>May 1 22:56:45 xxx kernel: [ 407.569175] [<ffffffff8106b01c>] 
warn_slowpath_fmt+0x4c/0x50
+ <4>May 1 22:56:45 xxx kernel: [ 407.569183] [<ffffffff816342f7>] 
dev_disable_lro+0x87/0x90
+ <4>May 1 22:56:45 xxx kernel: [ 407.569195] [<ffffffffa03f2213>] 
br_add_if+0x1f3/0x430 [bridge]
+ <4>May 1 22:56:45 xxx kernel: [ 407.569205] [<ffffffffa03f2c4d>] 
add_del_if+0x5d/0x90 [bridge]
+ <4>May 1 22:56:45 xxx kernel: [ 407.569215] [<ffffffffa03f353b>] 
br_dev_ioctl+0x5b/0x90 [bridge]
+ <4>May 1 22:56:45 xxx kernel: [ 407.569223] [<ffffffff81646853>] 
dev_ifsioc+0x313/0x360
+ <4>May 1 22:56:45 xxx kernel: [ 407.569230] [<ffffffff8162dac9>] ? 
dev_get_by_name_rcu+0x69/0x90
+ <4>May 1 22:56:45 xxx kernel: [ 407.569237] [<ffffffff81646989>] 
dev_ioctl+0xe9/0x590
+ <4>May 1 22:56:45 xxx kernel: [ 407.569245] [<ffffffff81614b25>] 
sock_do_ioctl+0x45/0x50
+ <4>May 1 22:56:45 xxx kernel: [ 407.569252] [<ffffffff81615050>] 
sock_ioctl+0x1f0/0x2c0
+ <4>May 1 22:56:45 xxx kernel: [ 407.569260] [<ffffffff811d6670>] 
do_vfs_ioctl+0x2e0/0x4c0
+ <4>May 1 22:56:45 xxx kernel: [ 407.569267] [<ffffffff811c4e2e>] ? 
____fput+0xe/0x10
+ <4>May 1 22:56:45 xxx kernel: [ 407.569273] [<ffffffff811d68d1>] 
SyS_ioctl+0x81/0xa0
+ <4>May 1 22:56:45 xxx kernel: [ 407.569283] [<ffffffff8173f8a5>] 
system_call_fastpath+0x2f/0x34
+ <4>May 1 22:56:45 xxx kernel: [ 407.569287] ---[ end trace df5aa31d75a7e2b1 
]---
+ <4>May 1 22:56:54 xxx kernel: [ 416.320138] bonding: bond1: Warning: the 
permanent HWaddr of enp131s0f0 - a0:36:9f:c1:25:d0 - is still in use by bond1. 
Set the HWaddr of enp131s0f0 to a different address to avoid conflicts.
+ <4>May 1 22:57:00 xxx kernel: [ 422.362677] bonding: bond1: Warning: No 
802.3ad response from the link partner for any adapters in the bond
+ <4>May 1 22:57:07 xxx kernel: [ 429.522843] ------------[ cut here 
]------------
+ And here:
+ 
+ <4>May 1 22:57:07 xxx kernel: [ 429.522843] ------------[ cut here 
]------------
+ <4>May 1 22:57:07 xxx kernel: [ 429.522853] WARNING: CPU: 0 PID: 34191 at 
/build/linux-90Gc2C/linux-3.13.0/net/core/dev.c:1433 dev_disable_lro+0x87/0x90()
+ <4>May 1 22:57:07 xxx kernel: [ 429.522857] netdevice: bond1.2001
+ <4>May 1 22:57:07 xxx kernel: [ 429.522857] failed to disable LRO!
+ <4>May 1 22:57:07 xxx kernel: [ 429.522861] Modules linked in: 8021q garp mrp 
bridge stp llc bonding iptable_filter ip_tables x_tables nf_conntrack_proto_gre 
nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack 
ipmi_devintf mxm_wmi dcdbas x86_pkg_temp_thermal coretemp kvm_intel kvm 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw 
gf128mul glue_helper ablk_helper cryptd lpc_ich mei_me mei ipmi_si shpchp wmi 
acpi_power_meter mac_hid xfs libcrc32c raid10 usb_storage raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 
raid0 igb ixgbe i2c_algo_bit multipath ahci dca ptp libahci pps_core linear 
megaraid_sas mdio dm_multipath scsi_dh
+ <4>May 1 22:57:07 xxx kernel: [ 429.522933] CPU: 0 PID: 34191 Comm: brctl 
Tainted: G W 3.13.0-142-generic #191-Ubuntu
+ <4>May 1 22:57:07 xxx kernel: [ 429.522937] Hardware name: Dell Inc. 
PowerEdge R730xd/072T6D, BIOS 2.7.1 001/22/2018
+ <4>May 1 22:57:07 xxx kernel: [ 429.522940] 0000000000000000 ffff88056ca57c70 
ffffffff8172e7fc ffff88056ca57cb8
+ <4>May 1 22:57:07 xxx kernel: [ 429.522951] 0000000000000009 ffff88056ca57ca8 
ffffffff8106afad ffff883fcc9a3000
+ <4>May 1 22:57:07 xxx kernel: [ 429.522961] ffff881fce800880 ffff883fcc9a3000 
0000000000000000 ffff883fcdb93d40
+ <4>May 1 22:57:07 xxx kernel: [ 429.522972] Call Trace:
+ <4>May 1 22:57:07 xxx kernel: [ 429.522981] [<ffffffff8172e7fc>] 
dump_stack+0x64/0x82
+ <4>May 1 22:57:07 xxx kernel: [ 429.522989] [<ffffffff8106afad>] 
warn_slowpath_common+0x7d/0xa0
+ <4>May 1 22:57:07 xxx kernel: [ 429.522996] [<ffffffff8106b01c>] 
warn_slowpath_fmt+0x4c/0x50
+ <4>May 1 22:57:07 xxx kernel: [ 429.523004] [<ffffffff816342f7>] 
dev_disable_lro+0x87/0x90
+ <4>May 1 22:57:07 xxx kernel: [ 429.523016] [<ffffffffa03f2213>] 
br_add_if+0x1f3/0x430 [bridge]
+ <4>May 1 22:57:07 xxx kernel: [ 429.523027] [<ffffffffa03f2c4d>] 
add_del_if+0x5d/0x90 [bridge]
+ <4>May 1 22:57:07 xxx kernel: [ 429.523038] [<ffffffffa03f353b>] 
br_dev_ioctl+0x5b/0x90 [bridge]
+ <4>May 1 22:57:07 xxx kernel: [ 429.523047] [<ffffffff81646853>] 
dev_ifsioc+0x313/0x360
+ <4>May 1 22:57:07 xxx kernel: [ 429.523054] [<ffffffff8162dac9>] ? 
dev_get_by_name_rcu+0x69/0x90
+ <4>May 1 22:57:07 xxx kernel: [ 429.523061] [<ffffffff81646989>] 
dev_ioctl+0xe9/0x590
+ <4>May 1 22:57:07 xxx kernel: [ 429.523070] [<ffffffff81614b25>] 
sock_do_ioctl+0x45/0x50
+ <4>May 1 22:57:07 xxx kernel: [ 429.523076] [<ffffffff81615050>] 
sock_ioctl+0x1f0/0x2c0
+ <4>May 1 22:57:07 xxx kernel: [ 429.523084] [<ffffffff811d6670>] 
do_vfs_ioctl+0x2e0/0x4c0
+ <4>May 1 22:57:07 xxx kernel: [ 429.523091] [<ffffffff811c4e2e>] ? 
____fput+0xe/0x10
+ <4>May 1 22:57:07 xxx kernel: [ 429.523098] [<ffffffff811d68d1>] 
SyS_ioctl+0x81/0xa0
+ <4>May 1 22:57:07 xxx kernel: [ 429.523107] [<ffffffff8173f8a5>] 
system_call_fastpath+0x2f/0x34
+ <4>May 1 22:57:07 xxx kernel: [ 429.523111] ---[ end trace df5aa31d75a7e2b2 
]---
+ 
+ root@xxx:/var/log# ip link|grep enp
+ 6: enp3s0f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9100 qdisc mq master 
bond0 state UP mode DEFAULT group default qlen 1000
+ 7: enp3s0f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9100 qdisc mq master 
bond1 state UP mode DEFAULT group default qlen 1000
+ 8: enp131s0f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9100 qdisc mq 
master bond1 state UP mode DEFAULT group default qlen 1000
+ 9: enp131s0f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9100 qdisc mq 
master bond0 state UP mode DEFAULT group default qlen 1000
+ root@xxx:/ar/log# ethtool -i enp3s0f0
+ driver: ixgbe
+ version: 3.15.1-k
+ firmware-version: 0x800008bd
+ bus-info: 0000:03:00.0
+ supports-statistics: yes
+ supports-test: yes
+ supports-eeprom-access: yes
+ supports-register-dump: yes
+ supports-priv-flags: no
+ root@xxx:/var/log# lsb_release -a
+ No LSB modules are available.
+ Distributor ID: Ubuntu
+ Description: Ubuntu 14.04.5 LTS
+ Release: 14.04
+ Codename: trusty
+ root@xxx:/var/log# cat /proc/version
  Linux version 3.13.0-142-generic (buildd@lcy01-amd64-014) (gcc version 4.8.4 
(Ubuntu 4.8.4-2ubuntu1~14.04.3) ) #191-Ubuntu SMP Fri Feb 2 12:13:35 UTC 2018

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https://bugs.launchpad.net/bugs/1771480

Title:
  WARNING: CPU: 28 PID: 34085 at /build/linux-
  90Gc2C/linux-3.13.0/net/core/dev.c:1433 dev_disable_lro+0x87/0x90()

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