Kerberos is being used (attempt to free static memory).
The error was caused by a confusing doublespeak of fe_getauthname():
Returns a pointer to static memory, if you authenticate via Kerberos,
a pointer to dynamic memory otherwise.

Submitted by: Erich Stamberger <eberger@gewi.kfunigraz.ac.at>

Submitted by: Rick Weldon <rick@wisetech.com>

submitted by: Dr_George_D_Detlefsen <drgeorge@ilt.com>

exists...

Submitted by: Bruce Momjian <maillist@candle.pha.pa.us>

Submitted by: Dr. George

Submitted by: "Brian E. Gallew" <geek+@cmu.edu>

submitted by: vadim@sable.krasnoyarsk.su (Vadim B. Mikheev)

submitted by: Bruce Momjian <maillist@candle.pha.pa.us>

submitted by: dr. george

submitted by: dr. george

submitted by: dr. george

any confusion...so its gone...

Submitted by: Rick Weldon <rick@wisetech.com>

completely)

of my (proff) patch. This is the rest of it, with a few, mainly aesthetic
changes. I've removed a lot of redundency from the original code,
added support for the new PQprint() routines in libpq, expanded tables,
and a few generally nifty ways of massaging data in and out of the
backend. Still needs some good stress testing.

compatibility. There isn't much difference here against my previous
PQprint() code, except that you can add optional arguments to the
<table args> in html.

have to have TCL to use postgres95, which you don't

there?

to go out after all :(

Submitted by: "Vadim B. Mikheev" <vadim@sable.krasnoyarsk.su>

bin directory

Most of the changes in here look to b epurely cosmetic, and don't
affect anything...

...and some stuff is completely questionable...in that I may have reversed
some of the stuf fwe already had :(

Merged in Dr. George's src/bin tree (possibly broke monitor/psql in process)

to not compile now...

        - src/backend/catalog/*
                - no changes
        - src/backend/executor/*
                - change how nodeHash.c handles running out of memory
        - src/backend/optimizer/*
                - mostly cosmetic changes

        - src/backend/tcop/*
                - cosmetic changes to OPENLINK patches
        - src/backend/storage/*
                - more changes, mostly cosmetic
        - src/backend/ports/*
                - merge in patches for aix and i386_solaris