Comment 11 for bug 433051

and my relevant config files:

...crypttab...
home_crypt /dev/sdf1 noauto luks

...pam_mount.conf.xml...
<pam_mount>

  <!-- debug should come before everything else,
  since this file is still processed in a single pass
  from top-to-bottom -->

<debug enable="0" />

  <!-- Volume definitions -->
<volume user="dude" fstype="crypt" path="/dev/mapper/home_crypt" mountpoint="/home" />

  <!-- pam_mount parameters: General tunables -->
...