The attachment "lightdm-check-close-status.patch" seems to be a patch.
If it isn't, please remove the "patch" flag from the attachment, remove
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** Tags added: patch

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to lightdm in Ubuntu.
https://bugs.launchpad.net/bugs/1740406

Title:
  Login fails with no error message when NFS home directory is over
  quota

Status in lightdm package in Ubuntu:
  New

Bug description:
  If a user is over quota, or if the home directory disk is full, they
  get logged out straight after logging in, when the home directory is
  on NFS. No information is presented to the user that would let them
  know the problem.

  This is because of an error in the way that lightdm writes to the
  ~/.Xauthority file in src/x-authority.c.

  It does check that each write() succeeds, but in the NFS case, the
  data isn't actually written by the client until fsync() is called; the
  status of that system call isn't checked so the quota problem is
  undetected.

  Calling fsync() is not necessary; the effect of committing the data to
  disk is implied by close(), which is done on the next line anyway.

  Ubuntu 14.04.5 LTS
  lightdm 1.10.6-0ubuntu1

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