Description of problem: Sometimes when I try to change user to another (root) I got: [user@xxx ~]$ su - Segmentation fault [user@xxx ~]$ Version-Release number of selected component (if applicable): [user@xxx ~]$ rpm -q redhat-release redhat-release-5Server-5.0.0.9 [user@xxx ~]$ rpm -qf /bin/su coreutils-5.97-12.1.el5 [user@xxx ~]$ How reproducible: I don't know - I got it 2 times, on different servers (but all are IBM HS20)
The problem may very well be in a PAM module. Can you get it to happen on demand? If so, it would be great to try doing that starting as root, with 'ulimit -c unlimited' set in order to get a core dump.
Too long in NEEDINFO, closing INSUFFICIENT_DATA. Feel free to reopen it in the case of more informations available.