OS The Linux System

fork

exec

ioctl

longjmp

the instruction set architecture

page size

physical memory size

number of processes in memory

ignoring the signal

handling the signal

performing some default action

all of the mentioned

they do not work between processes

they are user generated

they cannot carry information directly

none of the mentioned

the kernel can schedule another thread in the application for execution

the kernel cannot schedule another thread in the same application for execution

the kernel must schedule another thread of a different application for execution

the kernel must schedule another thread of the same application on a different processor

one

two

three

four

may

must

do not

must not

running

parsing

ready

blocked

convert a blocking system call into non blocking system call

create a new thread

communicate between threads

terminate a thread

fork

exec

ioctl

longjmp