To reproduce:

* Install fresh Fedora 34 VM
* Compile Bitcoin Core and run `./test/functional/p2p_dns_seeds.py`
{
        allowed_syscalls.insert(__NR_getrandom); 
    }
    void AllowGetSimpleId()
    {
        allowed_syscalls.insert(__NR_getegid);   
        allowed_syscalls.insert(__NR_geteuid);   
        allowed_syscalls.insert(__NR_getgid);    
        allowed_syscalls.insert(__NR_getpgid);   
        allowed_syscalls.insert(__NR_getpid);    
        allowed_syscalls.insert(__NR_getppid);   
        allowed_syscalls.insert(__NR_getresgid); 
        allowed_syscalls.insert(__NR_getresuid); 
        allowed_syscalls.insert(__NR_getsid);    
        allowed_syscalls.insert(__NR_gettid);    
        allowed_syscalls.insert(__NR_getuid);    
    }
    void AllowGetTime()