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Re: valgrind warnings [Re: Emacs bzr memory footprint]

From: Florian Weimer
Subject: Re: valgrind warnings [Re: Emacs bzr memory footprint]
Date: Sun, 04 Dec 2011 22:11:47 +0100

* Ted Zlatanov:

> On Fri, 28 Oct 2011 07:52:12 -0400 Dan Nicolaescu <address@hidden> wrote: 
> DN> On Fedora 15 with valgrind-3.6.1 it is possible to run 
> DN> valgrind ./temacs
> I ran this and opened and closed a GnuTLS connection many times:
> (open-gnutls-stream "tls" "tls-buffer" "imap.gmail.com" "imaps")
> I did not see any errors printed when I did this, but on exit a lot of
> information was printed that did not seem related (I could not analyze
> it all, it was too much data and I don't know what to look for other
> than "gnutls").  Is this enough to tell us there are no memory leaks in
> the "open connection" part of the code?  I'll test sending and receiving
> data if so.

I think you need to run

valgrind --leak-check=yes ./temacs

and actually terminate the program to get the dump of leaked

Has the bug been identified in the meantime?  I've got some very
long-running processes using GnuTLS which grow without bounds,
too---but I've been blaming this on bugs in my Perl wrapper.  In that
cases, just opening and closing connections (and sending a bit of
data) does not trigger the leak condition, either.

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