kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Those two commits have been in the Ubuntu kernel prior to the Vivid
release:

git describe --contains 56bfa7ee7c88
v3.16-rc1~27^2~281

git describe --contains 395eea6ccf2b
v3.19-rc1~118^2~64

So this bug should not exist in Vivid, Wily or Xenial.   Can you confirm
that?

I built a Trusty test kernel with these two commits.  It can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1525324/

Can you test this kernel and confirm it resolves this bug?  If it does,
I'll submit a SRU request for those two commits to be added to Trusty.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1525324

Title:
  kernel/bonding: wrong netlink messages when deleting a bonding
  interface

Status in linux package in Ubuntu:
  In Progress
Status in linux-lts-utopic package in Ubuntu:
  In Progress
Status in linux source package in Trusty:
  In Progress
Status in linux-lts-utopic source package in Trusty:
  In Progress

Bug description:
  Here is the bug:

  root@ubuntu1404:~# modprobe bonding
  root@ubuntu1404:~# modprobe dummy
  root@ubuntu1404:~# ip link set dummy0 master bond0
  root@ubuntu1404:~# ip monitor link&
  [1] 1065
  root@ubuntu1404:~# ip link del bond0
  Deleted 6: bond0: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN group default 
      link/ether c2:46:53:08:ee:50 brd ff:ff:ff:ff:ff:ff
  7: dummy0: <BROADCAST,NOARP,SLAVE,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default 
      link/ether c2:46:53:08:ee:50 brd ff:ff:ff:ff:ff:ff
  7: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default 
      link/ether c2:46:53:08:ee:50 brd ff:ff:ff:ff:ff:ff
  6: bond0: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN group default 
      link/ether e6:49:16:3b:17:fe brd ff:ff:ff:ff:ff:ff
  6: bond0: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN group default 
  root@ubuntu1404:~#     link/ether e6:49:16:3b:17:fe brd ff:ff:ff:ff:ff:ff
  7: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noqueue state DOWN group default 
      link/ether c2:46:53:08:ee:50 brd ff:ff:ff:ff:ff:ff
  7: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noqueue state DOWN group default 
      link/ether c2:46:53:08:ee:50 brd ff:ff:ff:ff:ff:ff
  ^C
  root@ubuntu1404:~# uname -a
  Linux ubuntu1404 3.13.0-71-generic #114-Ubuntu SMP Tue Dec 1 02:34:22 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
  root@ubuntu1404:~#

  A netlink message advertise that bond0 is deleted and after that two
  netlink messages are sent telling that bond0 exists again.

  This bug has been fixed by these upstream commits:
  56bfa7ee7c88 unregister_netdevice : move RTM_DELLINK to until after ndo_uninit
  http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=56bfa7ee7c88
  395eea6ccf2b rtnetlink: delay RTM_DELLINK notification until after ndo_uninit()
  http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=395eea6ccf2b

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1525324/+subscriptions