To reproduce:

* Install fresh Fedora 34 VM
* Compile Bitcoin Core and run `./test/functional/p2p_dns_seeds.py`
{__NR_pselect6, "pselect6"},
    {__NR_ptrace, "ptrace"},
    {__NR_putpmsg, "putpmsg"},
    {__NR_pwrite64, "pwrite64"},
    {__NR_pwritev, "pwritev"},
    {__NR_pwritev2, "pwritev2"},
    {__NR_query_module, "query_module"},
    {__NR_quotactl, "quotactl"},
    {__NR_read, "read"},
    {__NR_readahead, "readahead"},
    {__NR_readlink, "readlink"},
    {__NR_readlinkat, "readlinkat"},
    {__NR_readv, "readv"},
    {__NR_reboot, "reboot"},
    {__NR_recvfrom, "recvfrom"},
    {__NR_recvmmsg, "recvmmsg"},
    {__NR_recvmsg, "recvmsg"},
    {__NR_remap_file_pages, "remap_file_pages"},
    {__NR_removexattr, "removexattr"},
    {__NR_rename, "rename"},
    {__NR_renameat, "renameat"},
    {__NR_renameat2, "renameat2"},
    {__NR_request_key, "request_key"},
    {__NR_restart_syscall, "restart_syscall"},
    {__NR_rmdir, "rmdir"},
    {__NR_rt_sigaction, "rt_sigaction"},
    {__NR_rt_sigpending, "rt_sigpending"},
    {__NR_rt_sigprocmask, "rt_sigprocmask"},
    {__NR_rt_sigqueueinfo, "rt_sigqueueinfo"},
    {__NR_rt_sigreturn, "rt_sigreturn"},