How to debug memory leaks

[edgar]

Hello,

I have noticed that my Emacs setup keeps using all my RAM, and it then 
goes for my swap memory. I think that it is leaking memory.

My use of Emacs at the moment is to work with a C++ finite element 
library (libMesh), and I am using Org to create literate programming. I 
am currently not doing any LaTeX (or otherwise fancy) exporting, but 
Org-ref does get loaded, among others and I also do unicode text 
exporting to make sure that some things would be included (#+include: 
my_file::block_name src cpp). I work with Makefiles and use the compile 
command from Emacs, as much as shell-command if needed. I am also trying 
to use helm-gtags. There is company running as well.

I noticed that when the 17.9 MB TAGS file (Global gtags) is read, the 
memory use jumps a lot and keeps increasing. It seems that font leaking 
is a common issue as well. For both reasons, I already deactivated 
moe-theme and projectile, and I keep doing garbage-collect constantly, 
all of which seems to have helped. However, the problem subsists.

I tried to follow what seemed to be the most instructive way of 
debugging this 
http://notes.secretsauce.net/notes/2015/10/05_memory-leak-debugging-tools.html). 
However, I get errors unbeknownst to me. Namely:

    The /usr/lib/libc-2.33.so file has no debug information.
Rebuild with -g, or install an appropriate debuginfo package.
  Error: Failed to add events.

    Error:	File /sys/kernel/debug/tracing/events/probe_libc/free not 
found.
Hint:	Perhaps this kernel misses some CONFIG_ setting to enable this 
feature?.

It is clear that I would have to recompile my kernel with debugging 
symbols, but that seems too much.

I attach a file with info on my Linux, Emacs version and the packages 
that I use. I hope that someone can help me to find and correct the 
memory leak, or point me in the right direction. Thanks.

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emacs-config-mem-leak.txt.gz
Description: GNU Zip compressed data