Bug#480056: same symptoms here, caused by misbehaving pam plugin

[Thomas Viehmann]

Hi,

thanks for maintaining GDM. I got similar symptoms, i.e. gdm crashing on
first login attempt with signal 6 and then being slow but working. I
tracked this down to the pam_authenticate call in daemon/verify-pam.c.
For me, this was likely caused by libpam-thinkfinger (i.e. removing and
reinstalling turned the crshing off and on, also, judging by the
bug-reports, it seems to be crash-happy) after a kernel update to
Debian's linux 2.6.29(?).
Just a thought, apologies for the noise.

Kind regards

T.
-- 
Thomas Viehmann, http://thomas.viehmann.net/