Description of problem:
ElectricFence dumps core on Hammer immediately at startup.

Version-Release number of selected component (if applicable):
ElectricFence-2.2.2-14

How reproducible:
Always

Steps to Reproduce:
e.g.
$ ef ls

anything linked against -lefence does likewise, as does running the test suite
in the EF sources.

Actual results:

  Electric Fence 2.2.0 Copyright (C) 1987-1999 Bruce Perens <bruce@perens.com>
/usr/bin/ef: line 20:  1132 Segmentation fault      ( export
LD_PRELOAD=libefence.so.0.0; exec $* )


Expected results:
No segfaults.


Additional info:
EF test suite passes if not compiled with -DUSE_SEMAPHORE.
From adding debugging, the segfault occurs in exactly the pthread_self() call in
efence.c:lock().