To reproduce:

* Install fresh Fedora 34 VM
* Compile Bitcoin Core and run `./test/functional/p2p_dns_seeds.py`
{__NR_msgsnd, "msgsnd"},
    {__NR_msync, "msync"},
    {__NR_munlock, "munlock"},
    {__NR_munlockall, "munlockall"},
    {__NR_munmap, "munmap"},
    {__NR_name_to_handle_at, "name_to_handle_at"},
    {__NR_nanosleep, "nanosleep"},
    {__NR_newfstatat, "newfstatat"},
    {__NR_nfsservctl, "nfsservctl"},
    {__NR_open, "open"},
    {__NR_openat, "openat"},
    {__NR_open_by_handle_at, "open_by_handle_at"},
    {__NR_pause, "pause"},
    {__NR_perf_event_open, "perf_event_open"},
    {__NR_personality, "personality"},
    {__NR_pipe, "pipe"},
    {__NR_pipe2, "pipe2"},
    {__NR_pivot_root, "pivot_root"},
    {__NR_pkey_alloc, "pkey_alloc"},
    {__NR_pkey_free, "pkey_free"},
    {__NR_pkey_mprotect, "pkey_mprotect"},
    {__NR_poll, "poll"},
    {__NR_ppoll, "ppoll"},
    {__NR_prctl, "prctl"},
    {__NR_pread64, "pread64"},
    {__NR_preadv, "preadv"},
    {__NR_preadv2, "preadv2"},
    {__NR_prlimit64, "prlimit64"},
    {__NR_process_vm_readv, "process_vm_readv"},
    {__NR_process_vm_writev, "process_vm_writev"},