wait_badpid 272 user/testbin/badcall/bad_waitpid.c wait_badpid(-8, "wait for pid -8"); wait_badpid 273 user/testbin/badcall/bad_waitpid.c wait_badpid(-1, "wait for pid -1"); wait_badpid 274 user/testbin/badcall/bad_waitpid.c wait_badpid(0, "pid zero"); wait_badpid 275 user/testbin/badcall/bad_waitpid.c wait_badpid(NONEXIST_PID, "nonexistent pid");