group.of.nepali.translators team mailing list archive

[John Johansen <john.johansen@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu Yakkety)
       Status: Triaged => Invalid

** Also affects: linux (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Trusty)
       Status: New => Triaged

** Also affects: linux (Ubuntu Precise)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Precise)
       Status: New => Invalid

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

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https://bugs.launchpad.net/bugs/1634753

Title:
  srcname from mount rule corrupted under load

Status in AppArmor:
  In Progress
Status in linux package in Ubuntu:
  Triaged
Status in linux source package in Precise:
  Invalid
Status in linux source package in Trusty:
  Triaged
Status in linux source package in Xenial:
  Triaged
Status in linux source package in Yakkety:
  Invalid

Bug description:
  This came up in snapd spread tests but can be reproduced with:

  In an i386 up to date 16.04 VM:

  1. in one terminal, run this:

  $ cat changehat_reproducer.sh
  #!/bin/sh
  set -e
  sudo sysctl -w kernel.printk_ratelimit=0
  sudo snap install hello-world || true

  count=0
  while /bin/true ; do
      count=$((count+1))
      if [ `echo "$count % 100" | bc` -eq 0 ]; then
          echo "$count runs"
      fi
      hello-world > /dev/null || {
        tail -100 /var/log/syslog | grep DEN && exit
      }
      sudo cat /run/snapd/ns/hello-world.mnt 2>/dev/null || sudo /usr/lib/snapd/snap-discard-ns hello-world
  done

  2. in another terminal run:
  $ while do /bin/true ; sudo apparmor_parser -r /etc/apparmor.d/* >/dev/null 2>&1 ; done

  3. In another terminal:
  $ tail -f /var/log/syslog|grep DEN

  
  This is not limited to i386.

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