2018年3月27日(火) 0:11 Joseph Salisbury <email address hidden>:

> I built a 4.4 kernel using the Artful configs, it can be downloaded from:
> http://kernel.ubuntu.com/~jsalisbury/lp1753662


Thanks. I just lost the access to the machine today. So I have to use
another host in a different data center. Will resume testing in a few days.




>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1753662
>
> Title:
>   [i40e] LACP bonding start up race conditions
>
> Status in linux package in Ubuntu:
>   Triaged
> Status in linux source package in Xenial:
>   Triaged
>
> Bug description:
>   When provisioning Ubuntu servers with MAAS at once, some bonding pairs
>   will have unexpected LACP status such as "Expired". It randomly
>   happens at each provisioning with the default xenial kernel(4.4), but
>   not reproducible with HWE kernel(4.13). I'm using Intel X710 cards
>   (Dell-branded).
>
>   Using the HWE kernel works as a workaround for short term, but it's
>   not ideal since 4.13 is not covered by Canonical Livepatch service.
>
>   How to reproduce:
>   1. configure LACP bonding with MAAS
>   2. provision machines
>   3. check the bonding status in /proc/net/bonding/bond*
>
>   frequency of occurrence:
>   About 5 bond pairs in 22 pairs at each provisioning.
>
>   [reproducible combination]
>   $ uname -a
>   Linux comp006 4.4.0-116-generic #140-Ubuntu SMP Mon Feb 12 21:23:04 UTC
> 2018 x86_64 x86_64 x86_64 GNU/Linux
>
>   $ sudo ethtool -i eno1
>   driver: i40e
>   version: 1.4.25-k
>   firmware-version: 6.00 0x800034e6 18.3.6
>   expansion-rom-version:
>   bus-info: 0000:01:00.0
>   supports-statistics: yes
>   supports-test: yes
>   supports-eeprom-access: yes
>   supports-register-dump: yes
>   supports-priv-flags: yes
>
>   [non-reproducible combination]
>   $ uname -a
>   Linux comp006 4.13.0-36-generic #40~16.04.1-Ubuntu SMP Fri Feb 16
> 23:25:58 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
>
>   $ sudo ethtool -i eno1
>   driver: i40e
>   version: 2.1.14-k
>   firmware-version: 6.00 0x800034e6 18.3.6
>   expansion-rom-version:
>   bus-info: 0000:01:00.0
>   supports-statistics: yes
>   supports-test: yes
>   supports-eeprom-access: yes
>   supports-register-dump: yes
>   supports-priv-flags: yes
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 16.04
>   Package: linux-image-4.4.0-116-generic 4.4.0-116.140
>   ProcVersionSignature: Ubuntu 4.4.0-116.140-generic 4.4.98
>   Uname: Linux 4.4.0-116-generic x86_64
>   AlsaDevices:
>    total 0
>    crw-rw---- 1 root audio 116,  1 Mar  6 06:37 seq
>    crw-rw---- 1 root audio 116, 33 Mar  6 06:37 timer
>   AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
>   ApportVersion: 2.20.1-0ubuntu2.15
>   Architecture: amd64
>   ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
>   AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
> '/dev/snd/timer'] failed with exit code 1:
>   Date: Tue Mar  6 06:46:32 2018
>   IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
>   Lsusb:
>    Bus 002 Device 002: ID 8087:8002 Intel Corp.
>    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>    Bus 001 Device 003: ID 413c:a001 Dell Computer Corp. Hub
>    Bus 001 Device 002: ID 8087:800a Intel Corp.
>    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>   MachineType: Dell Inc. PowerEdge R730
>   PciMultimedia:
>
>   ProcEnviron:
>    TERM=screen
>    PATH=(custom, no user)
>    LANG=en_US.UTF-8
>    SHELL=/bin/bash
>   ProcFB: 0 EFI VGA
>   ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-116-generic.efi.signed
> root=UUID=0528f88e-cf1a-43e2-813a-e7261b88d460 ro console=tty0
> console=ttyS0,115200n8
>   RelatedPackageVersions:
>    linux-restricted-modules-4.4.0-116-generic N/A
>    linux-backports-modules-4.4.0-116-generic  N/A
>    linux-firmware                             1.157.17
>   RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
>   SourcePackage: linux
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   dmi.bios.date: 08/16/2017
>   dmi.bios.vendor: Dell Inc.
>   dmi.bios.version: 2.5.5
>   dmi.board.name: 072T6D
>   dmi.board.vendor: Dell Inc.
>   dmi.board.version: A08
>   dmi.chassis.asset.tag: 0018880
>   dmi.chassis.type: 23
>   dmi.chassis.vendor: Dell Inc.
>   dmi.modalias:
> dmi:bvnDellInc.:bvr2.5.5:bd08/16/2017:svnDellInc.:pnPowerEdgeR730:pvr:rvnDellInc.:rn072T6D:rvrA08:cvnDellInc.:ct23:cvr:
>   dmi.product.name: PowerEdge R730
>   dmi.sys.vendor: Dell Inc.
>
> To manage notifications about this bug go to:
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>
> Launchpad-Notification-Type: bug
> Launchpad-Bug: distribution=ubuntu; sourcepackage=linux; component=main;
> status=Triaged; importance=High; <email address hidden>;
> Launchpad-Bug: distribution=ubuntu; distroseries=xenial;
> sourcepackage=linux; component=main; status=Triaged; importance=High;
> <email address hidden>;
> Launchpad-Bug-Tags: amd64 apport-bug cdo-qa-blocker cpe-onsite uec-images
> xenial
> Launchpad-Bug-Information-Type: Public
> Launchpad-Bug-Private: no
> Launchpad-Bug-Security-Vulnerability: no
> Launchpad-Bug-Commenters: jsalisbury nobuto ubuntu-kernel-bot
> Launchpad-Bug-Reporter: Nobuto Murata (nobuto)
> Launchpad-Bug-Modifier: Joseph Salisbury (jsalisbury)
> Launchpad-Message-Rationale: Subscriber
> Launchpad-Message-For: nobuto
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