To reproduce:

* Install fresh Fedora 34 VM
* Compile Bitcoin Core and run `./test/functional/p2p_dns_seeds.py`
{__NR_execveat, "execveat"},
    {__NR_exit, "exit"},
    {__NR_exit_group, "exit_group"},
    {__NR_faccessat, "faccessat"},
    {__NR_fadvise64, "fadvise64"},
    {__NR_fallocate, "fallocate"},
    {__NR_fanotify_init, "fanotify_init"},
    {__NR_fanotify_mark, "fanotify_mark"},
    {__NR_fchdir, "fchdir"},
    {__NR_fchmod, "fchmod"},
    {__NR_fchmodat, "fchmodat"},
    {__NR_fchown, "fchown"},
    {__NR_fchownat, "fchownat"},
    {__NR_fcntl, "fcntl"},
    {__NR_fdatasync, "fdatasync"},
    {__NR_fgetxattr, "fgetxattr"},
    {__NR_finit_module, "finit_module"},
    {__NR_flistxattr, "flistxattr"},
    {__NR_flock, "flock"},
    {__NR_fork, "fork"},
    {__NR_fremovexattr, "fremovexattr"},
    {__NR_fsetxattr, "fsetxattr"},
    {__NR_fstat, "fstat"},
    {__NR_fstatfs, "fstatfs"},
    {__NR_fsync, "fsync"},
    {__NR_ftruncate, "ftruncate"},
    {__NR_futex, "futex"},
    {__NR_futimesat, "futimesat"},
    {__NR_getcpu, "getcpu"},
    {__NR_getcwd, "getcwd"},