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[Bug 1514785] Re: kernel 3.16.0.52+53 - ip rule repeats all default rules (messing up rule table)

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>
Date: Tue, 01 Dec 2015 01:16:26 -0000
Reply-to: Bug 1514785 <1514785@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: linux (Ubuntu Vivid)
       Status: In Progress => Confirmed

** Changed in: linux (Ubuntu Trusty)
       Status: In Progress => Confirmed

** Changed in: linux (Ubuntu)
       Status: In Progress => Confirmed

** Changed in: linux (Ubuntu)
     Assignee: Joseph Salisbury (jsalisbury) => (unassigned)

** Changed in: linux (Ubuntu Trusty)
     Assignee: Joseph Salisbury (jsalisbury) => (unassigned)

** Changed in: linux (Ubuntu Vivid)
     Assignee: Joseph Salisbury (jsalisbury) => (unassigned)

** Changed in: linux-lts-utopic (Ubuntu Trusty)
   Importance: Undecided => High

** Changed in: linux-lts-utopic (Ubuntu Vivid)
   Importance: Undecided => High

** No longer affects: linux-lts-utopic (Ubuntu Vivid)

** No longer affects: linux-lts-utopic (Ubuntu Trusty)

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https://bugs.launchpad.net/bugs/1514785

Title:
  kernel 3.16.0.52+53 - ip rule repeats all default rules (messing up
  rule table)

Status in linux package in Ubuntu:
  Confirmed
Status in linux-lts-utopic package in Ubuntu:
  Confirmed
Status in linux source package in Trusty:
  Confirmed
Status in linux source package in Vivid:
  Confirmed

Bug description:
  Kernel breaks PBR routing on several versions.
  Problem occurs on server and desktop.

  Example using linux-image-3.13.0-70

  lsb_release:
  Ubutu 14.04.3 LTS
  Release 14.04

  Expected:
  To have the normal rule table when using 'ip rule show'
   0:      from all lookup local
   32766:  from all lookup main
   32767:  from all lookup default

  Instead:
  The 'ip rule show' command is messed up showing lots of repeated rules for local/main/default (did not count them - simply too much)

  A sec prob in my case as it is making policy based routing useless if
  you need to grep whether your rule exists already.

  Workaraound, go back to/remain on either of these series:
  3.13.0-68
  3.16.0.51

  PBR NOT working on:
  3.13.0-69
  3.13.0-70
  3.16.0-52
  3.16.0-53

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