about l4_thread_ex_regs()

hello: i execute the l4_thread_ex_regs(...) systemcall, then the stack been pushed 0x38 byte data (esp -0x38), what`s that ? most serious is if i execute the l4_thread_ex_regs( dest_thread_id, child,... ) systemcall then the |child| running ,but if i execute l4_myself() in |child|, the return value is not equal to dest_thread_id, is that means i can`t specific the dest thread id or it`s unnecessary to spicify the dest thread id in the caller thread, but managed by |child| itself ? Neil Yu _________________________________________________________________ 免费下载 MSN Explorer: http://explorer.msn.com/lccn