[Bug 1385895] [NEW] automount daemon hangs on startup with utopic

[John Affleck]

Public bug reported:

With autofs 5.0.7-3ubuntu1.1 and autofs-ldap 5.0.7-3ubuntu1.1, automount
starts up fine. With the new version (5.0.8-1ubuntu1) in utopic, it
hangs shortly after displaying the ldap lookup information:

With 5.0.8-1ubuntu1
% automount -V

Linux automount version 5.0.8

Directories:
	config dir:	/etc/default
	maps dir:	/etc
	modules dir:	/usr/lib/x86_64-linux-gnu/autofs

Compile options:
  ENABLE_FORCED_SHUTDOWN ENABLE_IGNORE_BUSY_MOUNTS WITH_HESIOD 
  WITH_LDAP WITH_SASL LIBXML2_WORKAROUND 

% automount -dvm
lookup_nss_read_master: reading master files ou=auto.master,ou=automount,dc=oddment,dc=net
lookup_nss_read_master: reading master ldap ou=auto.master,ou=automount,dc=oddment,dc=net

(hangs)

With the version from trusty (autofs-ldap_5.0.7-3ubuntu1.1)
%  automount -V

Linux automount version 5.0.7

Directories:
	config dir:	/etc/default
	maps dir:	/etc
	modules dir:	/usr/lib/x86_64-linux-gnu/autofs

Compile options:
  ENABLE_FORCED_SHUTDOWN ENABLE_IGNORE_BUSY_MOUNTS WITH_HESIOD 
  WITH_LDAP WITH_SASL LIBXML2_WORKAROUND 

% automount -dvm

autofs dump map information
===========================

global options: none configured

Mount point: /home

source(s):
WARNING: gnome-keyring:: C_Initialize called twice for same process

  type: ldap
  map: ldap:ou=auto.home,ou=automount,dc=oddment,dc=net

.....

Stack trace from hung automount:
(gdb) where
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f1e512b356a in _L_lock_913 () from /lib/x86_64-linux-gnu/libpthread.so.0
#2  0x00007f1e512b3390 in __GI___pthread_mutex_lock (mutex=0x7f1e50237720 <ldapinit_mutex>) at ../nptl/pthread_mutex_lock.c:79
#3  0x00007f1e50018d90 in init_ldap_connection () from /usr/lib/x86_64-linux-gnu/autofs/lookup_ldap.so
#4  0x00007f1e50019062 in __init_ldap_connection () from /usr/lib/x86_64-linux-gnu/autofs/lookup_ldap.so
#5  0x00007f1e50018da4 in init_ldap_connection () from /usr/lib/x86_64-linux-gnu/autofs/lookup_ldap.so
#6  0x00007f1e5001912a in ?? () from /usr/lib/x86_64-linux-gnu/autofs/lookup_ldap.so
#7  0x00007f1e500194c0 in ?? () from /usr/lib/x86_64-linux-gnu/autofs/lookup_ldap.so
#8  0x00007f1e500198ac in ?? () from /usr/lib/x86_64-linux-gnu/autofs/lookup_ldap.so
#9  0x00007f1e5001b188 in lookup_read_master () from /usr/lib/x86_64-linux-gnu/autofs/lookup_ldap.so
#10 0x00007f1e51700881 in ?? ()
#11 0x00007f1e51701251 in lookup_nss_read_master ()
#12 0x00007f1e516f5439 in main ()

% lsb_release -rd
Description:	Ubuntu 14.10
Release:	14.10

% apt-cache policy autofs-ldap
autofs-ldap:
  Installed: 5.0.8-1ubuntu1
  Candidate: 5.0.8-1ubuntu1
  Version table:
 *** 5.0.8-1ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ utopic/universe amd64 Packages
        100 /var/lib/dpkg/status

** Affects: autofs5 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1385895

Title:
  automount daemon hangs on startup with utopic

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