I've got the same problem on computers that have got a fresh install, but that have had their LDAP configuration updated from a puppetmaster server. The problem appeared after I set up LDAP/PAM authentication on the computers. The error message from /var/log/messages:
Dec 8 11:29:48 vust1-3 kernel: [91665.959930] polkit-agent-he[17495]: segfault at 4 ip 002dbb90 sp bfe664e0 error 4 in libpam.so.0.82.1[2d8000+b000]
I've got the same problem on computers that have got a fresh install, but that have had their LDAP configuration updated from a puppetmaster server. The problem appeared after I set up LDAP/PAM authentication on the computers. The error message from /var/log/messages:
Dec 8 11:29:48 vust1-3 kernel: [91665.959930] polkit- agent-he[ 17495]: segfault at 4 ip 002dbb90 sp bfe664e0 error 4 in libpam. so.0.82. 1[2d8000+ b000]
Please tell if you need more info.