group.of.nepali.translators team mailing list archive

[Mathieu Trudel-Lapierre <mathieu.tl@xxxxxxxxx>]

Added a task for snappy for the core snap to be recreated. Adding
'verification-done' tag since this fix has been tested.

** Also affects: snappy
   Importance: Undecided
       Status: New

** Tags removed: verification-needed
** Tags added: verification-done

-- 
You received this bug notification because you are a member of नेपाली
भाषा समायोजकहरुको समूह, which is subscribed to Xenial.
Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1672740

Title:
  Netplan replug function is incompatible with ath9k_htc module

Status in netplan:
  Fix Released
Status in Snappy:
  New
Status in nplan package in Ubuntu:
  Fix Released
Status in nplan source package in Xenial:
  Fix Committed

Bug description:
  [Impact]
  Replugging ath9k_htc may confuse the driver and cause connection issues.

  [Test case]
  - Run nplan integration tests on the release
  - Validate that netplan generate && netplan apply alone, without config, behave as expected (no result)
  - Validate that netplan generate && netplan apply with minimal config writes /run/NetworkManager/conf.d/10-globally-managed-devices.conf
  - Validate that netplan generate && netplan apply works with any existing configuation.

  - Run 'netplan apply' with a valid config for an ath9k_htc device,
  validate the device is not replugged.

  [Regression potential]
  Any failure to work with existing configuration should be considered a regression. Any new failure of the test suite would be a regression.

  ---

  We hit the following problem about the interaction  between netplan
  and the ath9k_htc module, controlling the chip Atheros AR9271.

  If you run the following command

      netplan --debug apply

  or  you use console-conf for setting the network interfaces we get the
  following messages :

  ** (generate:2261): DEBUG: Processing input file //etc/netplan/00-snapd-config.yaml..
  ** (generate:2261): DEBUG: eth0: setting default backend to 1
  ** (generate:2261): DEBUG: Generating output files..
  ** (generate:2261): DEBUG: NetworkManager: definition eth0 is not for us (backend 1)
  DEBUG:netplan generated networkd configuration exists, restarting networkd
  DEBUG:no netplan generated NM configuration exists
  DEBUG:device lo operstate is unknown, not replugging
  DEBUG:device eth0 operstate is up, not replugging
  DEBUG:replug wlan0: unbinding 4-1:1.0 from /sys/bus/usb/drivers/ath9k_htc
  DEBUG:replug wlan0: rebinding 4-1:1.0 to /sys/bus/usb/drivers/ath9k_htc

  The last two row show two consecutive actions, one soon after the
  other:  unbind and bind the usb device on usb hub.

  The module ath9k_htc doesn't work fine in this situation: the wireless
  interface disappears.

  Our problem can be fixed by using the same approach used for mac80211_hwsim e mwifiex_pcie modules.
  The attached patch file fix the issue following the same pattern adopted for the following modules:
  mwifiex_pcie,mac80211_hwsim.

To manage notifications about this bug go to:
https://bugs.launchpad.net/netplan/+bug/1672740/+subscriptions