[Bug 31771] gimp freezes, crashes on "open", "save as", "print"

[dane]

Public bug reported:
https://launchpad.net/malone/bugs/31771

Affects: gimp (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
gimp freezes, using 80% CPU, when a user attempts Open, Save As, or
Print.  Must kill process.

gimp 2.2.2-1ubuntu
libgnomevfs2-0  2.10.0-0ubuntu55
libgtk2.0-0     2.6.4-0ubuntu5
libgnomeui-0    2.10.0-0ubuntu1
Ubuntu (hoary)

I know this is reported in several similar bugs, but here's some
additional info.  On our systems, this behavior happens for ldap user
accounts (libnss-ldap, libpam-ldap).  It _does_not_ happen for local
accounts in /etc/passwd.

Workaround
If the ldap user has a local account entry in /etc/passwd, this bug disappears and gimp works fine.  The user does not need entries in /etc/shadow or /etc/group.

nsswitch.conf specifies files first:
passwd:         files ldap
group:          files ldap
shadow:         files ldap

several related bugs:
1) https://launchpad.net/distros/ubuntu/+source/gimp/+bug/28136
2) http://bugzilla.gnome.org/show_bug.cgi?id=170367
3) http://bugzilla.gnome.org/show_bug.cgi?id=326218
4) http://bugzilla.gnome.org/show_bug.cgi?id=305206