collide syscalls to provoke data races (default true)
-procs int
number of parallel processes to execute programs (default 1)
-repeat int
repeat execution that many times (0 for infinite loop) (default 1)
-sandbox string
sandbox for fuzzing (none/setuid/namespace) (default "setuid")
-threaded
use threaded mode in executor (default true)
```
If you pass `-threaded=0 -collide=0`, programs will be executed as a simple single-threaded sequence of syscalls. `-threaded=1` forces execution of each syscall in a separate thread, so that execution can proceed over blocking syscalls. `-collide=0` forces second round of execution of syscalls when pairs of syscalls are executed concurrently.
then you need to adjust `syz-execprog` flags based on the values in the header. Namely, `Threaded`/`Collide`/`Procs`/`Sandbox` directly relate to `-threaded`/`-collide`/`-procs`/`-sandbox` flags. If `Repeat` is set to `true`, add `-repeat=0` flag to `syz-execprog`.