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[Martin Pitt <martin.pitt@xxxxxxxxxx>]

I cannot reproduce this. On current Utopic (Ubuntu 14.10):

$ ls -l /dev/success 
ls: cannot access /dev/success: No such file or directory
$ echo 'KERNEL=="zero", SYMLINK+="success"' | sudo tee /lib/udev/rules.d/graphics-xorg.conf.rules
$ sudo udevadm trigger --verbose --sysname-match=zero/sys/devices/virtual/mem/zero
$ ls -l /dev/success 
lrwxrwxrwx 1 root root 4 Aug  4 16:37 /dev/success -> zero

Are you sure that it's due to the nameing, and not perhaps a bad rule in
your .rules file which breaks the rule? Attaching the new rule and
udevadm test output would be helpful here.

** Changed in: systemd (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1319047

Title:
  udev rule file naming requirements changed breaking compatibility to
  Ubuntu 12.04

Status in “systemd” package in Ubuntu:
  Incomplete

Bug description:
  Binary package:

    udev:
      Installed: 204-5ubuntu20
      Candidate: 204-5ubuntu20
      Version table:
     *** 204-5ubuntu20 0
            500 http://de.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
            100 /var/lib/dpkg/status

  Source package:
    systemd 

  Ubuntu release:
    Description:	Ubuntu 14.04 LTS
    Release:	14.04

  
  Expected behavior:

    All rule files in /etc/udev/rules.d/ having the extension '.rules'
  [see udev(7)] should be honored by udevd (as it has been in Ubuntu
  12.04  and as it is still by "udevadm test <syspath>").

  Actual behavior:

    If udev rule file has an additional '.' (dot) in its name (e.g.
  "graphics-xorg.conf.rules) it will be silently ignored by udevd. But
  such a file will not be ignored by "udevadm test <syspath>", which
  even adds to the confusion about why the rule is not working. Also the
  man page udev(7) does not mention any additional/new naming
  requirements.

  How to reproduce:

    Create or rename a rule file in /etc/udev/rules.d/ so that its name
  contains an additional '.' (dot) (beside the one in '.rules', e.g.
  'graphics-xorg.conf.rules') and run "udevadm control --reload". From
  now on the udev rules in that file will be ignored silently by udevd
  (but not by 'udevadm test <syspath>'!).

  How to solve this issue:

    (1) Revert to the old behavior and make udevd honor rule file names as in Ubuntu 12.04 (preferred alternative)
    __OR__
    (2) If this change has been introduced intentionally then 
       (2a) Announce it (e.g. in a changelog and/or upgrade guide so that users/admins know about it and can rename their rule files not matching the changed needs)
       (2b) Change the code of "udevadm test" (and possibly other tools) to behave consistently so that users have a chance to narrow down the naming issue
       (2c) Add the changed naming requirement to man page udev(7), info files, tutorials... 

  Urgency/Importance:
    Normal

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