opening...
fd: 3
writing...
closing
reopening...
fd: 3
stat returns 0 (should succeed)
size according to stat: 23 bytes
mapped
mmap equal? 1
reopening...
read 23 bytes...
read equal? 1
getpid() == sys_getpid() : 1
child ppid == parent pid: 1
child pgid == parent pid: 0
setpgid works: 1