That's the things I would be looking at.
I thought of adding some WCHAN equivalent to SER which would allow the
FIFO process (if it does not hang itself) to figure out where the other
processes are hanging.
actually Andrei is convincing me that it is sufficiently convenient
to look with GDB what's going on.
-jiri
--
Jiri Kuthan
http://iptel.org/~jiri/