Luckily, I can reproduce the problem.
* start pine, enter setup
* Mark "Use current directory".
* start compose a message
* move down to body of message, use CTRL-R to include a file.
* Use CTRL-T to build a directory listing
* Pine answers with "Building File List..." and starts chewing memory.
Now, from strace I got that the last syscall was to write()
writing("Building File List..."), that's why I suspect something is wrong
with the kernel. I use 1.2.13 and has tried 1.2.11 getting the same
error. Since I can reproduce the error, I hope that someone more
competent in debugging these things can tell me what is going on...
/Marcus Nilsson, Kuai Scandinavia AB.