529   rt_sigsuspend(0x7ffe676d8e80, 16) = -1 EINVAL (Invalid argument)
529   rt_sigsuspend([], 8) = ? ERESTARTNOHAND (To be restarted if no handler)
529   execve("../threads-execve--quiet-thread-execve", ["../threads-execve--quiet-thread-execve", "8", "0"], 0x7ffe676d9058 /* 23 vars */) = 0
529   exit(42)       = ?
531   nanosleep({tv_sec=0, tv_nsec=12345}, NULL) = 0
531   execve("../threads-execve--quiet-thread-execve", ["../threads-execve--quiet-thread-execve", "8", "1"], 0x7ffcf3e1cf18 /* 23 vars */ <pid changed to 529 ...>
529   <... execve resumed>) = 0
529   rt_sigsuspend([], 8 <unfinished ...>
536   nanosleep({tv_sec=0, tv_nsec=12345}, NULL) = 0
536   execve("../threads-execve--quiet-thread-execve", ["../threads-execve--quiet-thread-execve", "8", "2"], 0x7fff2ed97eb8 /* 23 vars */ <unfinished ...>
529   <... rt_sigsuspend resumed>) = ?
529   <... execve resumed>) = 0
529   nanosleep({tv_sec=123, tv_nsec=0},  <unfinished ...>
538   nanosleep({tv_sec=0, tv_nsec=12345}, NULL) = 0
538   execve("../threads-execve--quiet-thread-execve", ["../threads-execve--quiet-thread-execve", "8", "3"], 0x7ffd9f60b2e8 /* 23 vars */ <unfinished ...>
529   <... nanosleep resumed> <unfinished ...>) = ?
529   <... execve resumed>) = 0
529   +++ exited with 0 +++