Emacs gets slower and slower after start up, and then eventually hangs.
CPU is not being heavily used nor memory.

It seems to happen reliably while using auctex. I cannot reproduce this
from emacs -Q. It takes 5 to 10 minutes of use at least to get to this
point. It does not happen all the time -- I do sometimes use Emacs all
day without a problem.

This bug report was generated in a new emacs (as the other one crashed).




Attached are a number of traces from gdb over a period of time as emacs
got slower and slower. The last two are after emacs hung totally.

I am not an expert with gdb or C, so while I am happy to give more
information, I need fairly explicit instructions on how to get it!