Need help understanding X server freeze

[Ilya Anfimov]

On Mon, Oct 03, 2016 at 11:22:36PM +0530, jeetu.golani at gmail.com wrote:
> Hi everyone,
> 
> First, I am a big fan of the remote display capabilities of X, thank
> you very much to all who have worked on this project over the years.
> 

 You  could  try to use wireshark and/or tcpdump to dump and ana-
lyze what's going on on the connection on the ssh  server   side.
In  fact,     DISPLAY     localhost:10.0     points     to    ad-
dress/port 127.0.0.1:6010 , which could be easily captured.

 Also, the Debian distribution  contains  debugging  symbols  for
xorg  X  server and most of it's drivers. Analyzing the internals
of X server with gdb is really easy when using them.

 Just beware, that gdb stops process it attach to -- therefore it
is  not  reasonably  to do that from client of that X server (or,
sometimes it is, when all is done by some script, but you  should
have a reasonable way to quit gdb).