Comment 14 for bug 600219

[I will ask something somewhat peculiar, I hope not so difficult to execute]
Could you check if you may get any core dumped from faxgetty? Usually segfault would create such file is ulimit does not forbid it.
ulimit is specified in /etc/security/limits.conf, you should add to that file two lines:

uucp soft core 100000
uucp hard core 100000

since I think that file is read at login time, you should logout, login again, and restart hylafax server.
once your faxgetty segfault, you should find its core somewhere, probably in /var/spool/hylafax, then run gdb against the core file. Once in gdb please type the command "bt" for having a backtrace. Send to me its output.

Thank you very much,
Giuseppe