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On 2017-03-02T11:22:24+00:00 daznis wrote:

Bond0 interface doesn't accept MTU higher than 1500.I can set MTU
perfectly fine for the slave devices. Recreating the bond0 didn't help
to up the MTU.


05:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ 
Network Connection (rev 01)
05:00.1 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ 
Network Connection (rev 01)

[ 1626.840818] bond0: Invalid MTU 9000 requested, hw max 1500
[ 1668.913497] ixgbe 0000:05:00.0 enp5s0f0: changing MTU from 1500 to 9000
[ 1669.176015] ixgbe 0000:05:00.0 enp5s0f0: speed changed to 0 for port enp5s0f0
[ 1669.237523] ixgbe 0000:05:00.0 enp5s0f0: detected SFP+: 5
[ 1669.487920] ixgbe 0000:05:00.0 enp5s0f0: NIC Link is Up 10 Gbps, Flow 
Control: RX/TX
[ 1675.591234] ixgbe 0000:05:00.1 enp5s0f1: changing MTU from 1500 to 9000
[ 1675.855232] ixgbe 0000:05:00.1 enp5s0f1: speed changed to 0 for port enp5s0f1
[ 1675.911259] ixgbe 0000:05:00.1 enp5s0f1: detected SFP+: 6
[ 1676.159087] ixgbe 0000:05:00.1 enp5s0f1: NIC Link is Up 10 Gbps, Flow 
Control: RX/TX
[ 1684.745389] bond0: Invalid MTU 9000 requested, hw max 1500



Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer3+4 (1)
MII Status: up
MII Polling Interval (ms): 0
Up Delay (ms): 0
Down Delay (ms): 0

802.3ad info
LACP rate: slow
Min links: 0
Aggregator selection policy (ad_select): stable
System priority: 65535
System MAC address: 90:e2:ba:15:68:20
Active Aggregator Info:
        Aggregator ID: 2
        Number of ports: 2
        Actor Key: 13
        Partner Key: 221
        Partner Mac Address: 02:1c:73:b2:9a:29

Slave Interface: enp5s0f0
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 90:e2:ba:15:68:20
Slave queue ID: 0
Aggregator ID: 2
Actor Churn State: none
Partner Churn State: none
Actor Churned Count: 0
Partner Churned Count: 0
details actor lacp pdu:
    system priority: 65535
    system mac address: 90:e2:ba:15:68:20
    port key: 13
    port priority: 255
    port number: 1
    port state: 61
details partner lacp pdu:
    system priority: 32768
    system mac address: 02:1c:73:b2:9a:29
    oper key: 221
    port priority: 16000
    port number: 373
    port state: 61

Slave Interface: enp5s0f1
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 90:e2:ba:15:68:21
Slave queue ID: 0
Aggregator ID: 2
Actor Churn State: none
Partner Churn State: none
Actor Churned Count: 0
Partner Churned Count: 0
details actor lacp pdu:
    system priority: 65535
    system mac address: 90:e2:ba:15:68:20
    port key: 13
    port priority: 255
    port number: 2
    port state: 61
details partner lacp pdu:
    system priority: 32768
    system mac address: 02:1c:73:b2:9a:29
    oper key: 221
    port priority: 17000
    port number: 33141
    port state: 61

Settings for enp5s0f0:
        Supported ports: [ FIBRE ]
        Supported link modes:   1000baseT/Full 
                                10000baseT/Full 
        Supported pause frame use: Symmetric
        Supports auto-negotiation: Yes
        Advertised link modes:  1000baseT/Full 
                                10000baseT/Full 
        Advertised pause frame use: Symmetric
        Advertised auto-negotiation: Yes
        Speed: 10000Mb/s
        Duplex: Full
        Port: FIBRE
        PHYAD: 0
        Transceiver: external
        Auto-negotiation: on
        Supports Wake-on: d
        Wake-on: d
        Current message level: 0x00000007 (7)
                               drv probe link
        Link detected: yes

Settings for enp5s0f1:
        Supported ports: [ FIBRE ]
        Supported link modes:   1000baseT/Full 
                                10000baseT/Full 
        Supported pause frame use: Symmetric
        Supports auto-negotiation: Yes
        Advertised link modes:  1000baseT/Full 
                                10000baseT/Full 
        Advertised pause frame use: Symmetric
        Advertised auto-negotiation: Yes
        Speed: 10000Mb/s
        Duplex: Full
        Port: FIBRE
        PHYAD: 0
        Transceiver: external
        Auto-negotiation: on
        Supports Wake-on: d
        Wake-on: d
        Current message level: 0x00000007 (7)
                               drv probe link
        Link detected: yes

Reply at: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-
edge/+bug/1679823/comments/0

------------------------------------------------------------------------
On 2017-03-06T13:28:00+00:00 jarod wrote:

The fix for this has been added to the net tree and is queued up for
4.10-stable.

Reply at: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-
edge/+bug/1679823/comments/1

------------------------------------------------------------------------
On 2017-04-25T15:31:06+00:00 dirk wrote:

The problems also occurs in 4.8.0-49 in ubuntu:

See: https://bugs.launchpad.net/linux/+bug/1679823/comments/6 and
https://bugs.launchpad.net/linux/+bug/1679823/comments/7

Reply at: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-
edge/+bug/1679823/comments/12

------------------------------------------------------------------------
On 2023-12-29T09:47:34+00:00 kkimdavenport wrote:

We have added the fix to the net tree and it is scheduled for 4.10-stable.
https://flappy-bird.co

Reply at: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-
edge/+bug/1679823/comments/99


** Changed in: linux
       Status: Unknown => Confirmed

** Changed in: linux
   Importance: Unknown => Medium

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-hwe-edge in Ubuntu.
https://bugs.launchpad.net/bugs/1679823

Title:
  bond0: Invalid MTU 9000 requested, hw max 1500 with kernel 4.8 / 4.10
  in XENIAL LTS

Status in Linux:
  Confirmed
Status in linux package in Ubuntu:
  Triaged
Status in linux-hwe package in Ubuntu:
  Fix Released
Status in linux-hwe-edge package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  Confirmed
Status in linux-hwe source package in Xenial:
  Fix Released
Status in linux-hwe-edge source package in Xenial:
  Confirmed
Status in linux source package in Yakkety:
  Fix Released
Status in linux-hwe source package in Yakkety:
  Fix Committed
Status in linux-hwe-edge source package in Yakkety:
  Fix Committed
Status in linux source package in Zesty:
  In Progress
Status in linux-hwe source package in Zesty:
  Confirmed
Status in linux-hwe-edge source package in Zesty:
  Confirmed

Bug description:
  Since I upgraded the kernel from linux-image-4.8.0-46-generic to
  linux-image-extra-4.10.0-14-generic I'm facing an issue when I want to
  change the MTU.

  It seems to be known bug already fixed:
  https://bugzilla.kernel.org/show_bug.cgi?id=194763

  # ip l sh eno49
  2: eno49: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9000 qdisc mq master 
bond0 state UP mode DEFAULT group default qlen 1000
      link/ether 5c:b9:01:8a:61:e9 brd ff:ff:ff:ff:ff:ff

  # ip l sh eno50
  3: eno50: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 9000 qdisc mq master 
bond0 state UP mode DEFAULT group default qlen 1000
      link/ether 5c:b9:01:8a:61:e9 brd ff:ff:ff:ff:ff:ff

  # ip l sh bond0
  6: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue 
state UP mode DEFAULT group default qlen 1000
      link/ether 5c:b9:01:8a:61:e9 brd ff:ff:ff:ff:ff:ff

  # ip l set mtu 9000 bond0
  RTNETLINK answers: Invalid argument

  root@controller002[SRV][YUL]:~# tail -1 /var/log/syslog
  Apr  4 19:36:28 controller002 kernel: [ 8869.077853] bond0: Invalid MTU 9000 
requested, hw max 1500

  # modinfo ixgbe
  filename:       
/lib/modules/4.10.0-14-generic/kernel/drivers/net/ethernet/intel/ixgbe/ixgbe.ko
  version:        4.4.0-k
  license:        GPL
  description:    Intel(R) 10 Gigabit PCI Express Network Driver

  # modinfo bonding
  filename:       
/lib/modules/4.10.0-14-generic/kernel/drivers/net/bonding/bonding.ko
  author:         Thomas Davis, tada...@lbl.gov and many others
  description:    Ethernet Channel Bonding Driver, v3.7.1
  version:        3.7.1

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