AFL Warning: We probably want the fork() children to run first

[xiaozhouqi]

1、Problem description
Traceback (most recent call last):
File "/home/angr/.virtualenvs/angr/bin/shellphuzz", line 7, in
exec(compile(f.read(), file, 'exec'))
File "/home/angr/angr-dev/fuzzer/shellphuzz", line 87, in
memory=args.memory, seeds=seeds, timeout=args.run_timeout,
File "/home/angr/angr-dev/fuzzer/fuzzer/fuzzer.py", line 99, in init
Fuzzer._perform_env_checks()
File "/home/angr/angr-dev/fuzzer/fuzzer/fuzzer.py", line 599, in _perform_env_checks
raise InstallError(err)
fuzzer.fuzzer.InstallError: AFL Warning: We probably want the fork() children to run first
execute 'echo 1 | sudo tee /proc/sys/kernel/sched_child_runs_first'

Exception ignored in: <bound method Fuzzer.del of <fuzzer.fuzzer.Fuzzer object at 0x7f188ab629e8>>
Traceback (most recent call last):
File "/home/angr/angr-dev/fuzzer/fuzzer/fuzzer.py", line 665, in del
self.kill()
File "/home/angr/angr-dev/fuzzer/fuzzer/fuzzer.py", line 266, in kill
for p in self.procs:
2、my unsuccessful solution
I run the following cmd in docker environment which gets from shellphish/mechaphish image. It output
the above error message.I'm trying to modify the sched_child_runs_first config file. But it's readonly file that cannot be changed. How can i solve this problem? I'm very appreciated for you help.
echo 1 | sudo tee /proc/sys/kernel/sched_child_runs_first
tee: /proc/sys/kernel/sched_child_runs_first: Read-only file system

[xiaozhouqi]

shellphuzz -i -c 4 ./buggy