[Octave-bug-tracker] [bug #40230] Memory leak in putenv

[John W. Eaton]

Follow-up Comment #2, bug #40230 (project octave):

I checked in the following changeset.

http://hg.savannah.gnu.org/hgweb/octave/rev/7b305b36b87e

It probably doesn't fix the memory leak problem (the memory is still allocated
and stored in the environment and not explicitly deallocated before program
exit) but it should prevent Octave's memory usage from growing without bound
for things like


n = 1024;
x = repmat ("deadbeef", [1, n]);
while (true) putenv ("foo", x); end


However, I did still notice some strange behavior if I ran the above and
attempted to put a very large string (8MB) in the environment.  For example,
after running the code above with N set to 1024*1024, the pager quit working
correctly.  But that appears to happen even when making the putenv call just
once with such a large string...

Rik, I'm not sure whether we should mark this "fixed" or not, but I think we
might as well close the report.  If you agree, please close it. 

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