Ok i will try to write a little source that have the same problem as the one i use now.

i'm running Linux merlin 2.4.20-gentoo-r7 #5 SMP Wed Oct 22 01:11:47 CEST 2003 i686 Pentium III (Coppermine) GenuineIntel GNU/Linux

I try thread exit and then write a little sample for you :)