To reproduce:

* Install fresh Fedora 34 VM
* Compile Bitcoin Core and run `./test/functional/p2p_dns_seeds.py`
{__NR_capset, "capset"},
    {__NR_chdir, "chdir"},
    {__NR_chmod, "chmod"},
    {__NR_chown, "chown"},
    {__NR_chroot, "chroot"},
    {__NR_clock_adjtime, "clock_adjtime"},
    {__NR_clock_getres, "clock_getres"},
    {__NR_clock_gettime, "clock_gettime"},
    {__NR_clock_nanosleep, "clock_nanosleep"},
    {__NR_clock_settime, "clock_settime"},
    {__NR_clone, "clone"},
    {__NR_close, "close"},
    {__NR_connect, "connect"},
    {__NR_copy_file_range, "copy_file_range"},
    {__NR_creat, "creat"},
    {__NR_create_module, "create_module"},
    {__NR_delete_module, "delete_module"},
    {__NR_dup, "dup"},
    {__NR_dup2, "dup2"},
    {__NR_dup3, "dup3"},
    {__NR_epoll_create, "epoll_create"},
    {__NR_epoll_create1, "epoll_create1"},
    {__NR_epoll_ctl, "epoll_ctl"},
    {__NR_epoll_ctl_old, "epoll_ctl_old"},
    {__NR_epoll_pwait, "epoll_pwait"},
    {__NR_epoll_wait, "epoll_wait"},
    {__NR_epoll_wait_old, "epoll_wait_old"},
    {__NR_eventfd, "eventfd"},
    {__NR_eventfd2, "eventfd2"},
    {__NR_execve, "execve"},