1. Please describe the problem: CKI test failed on s390x https://beaker.engineering.redhat.com/recipes/11731337#task142212913,task142212944 https://beaker-archive.host.prod.eng.bos.redhat.com/beaker-logs/2022/04/64671/6467150/11731337/142212944/taskout.log Actual result: :: [ 13:38:47 ] :: [ BEGIN ] :: Running 'ip netns exec router iptables -t nat -A PREROUTING -i r_c -p tcp -j DNAT --to-destination 10.167.2.2:9999' Warning: Extension DNAT revision 0 not supported, missing kernel module? iptables v1.8.7 (nf_tables): CHAIN_ADD failed (No such file or directory): chain PREROUTING :: [ 13:38:59 ] :: [ BEGIN ] :: Running 'ip netns exec router iptables -t nat -A POSTROUTING -o r_s -p tcp -j SNAT --to-source 10.167.2.254:1234' Warning: Extension SNAT revision 0 not supported, missing kernel module? iptables v1.8.7 (nf_tables): CHAIN_ADD failed (No such file or directory): chain POSTROUTING 2. What is the Version-Release number of the kernel: Fedora-Rawhide-20220403.n.0 Server s390x Fedora Linux 37 (Rawhide Prerelease) Kernel 5.18.0-0.rc1.18.test.fc37.s390x on an s390x (ttysclp0) 3. Did it work previously in Fedora? If so, what kernel version did the issue *first* appear? Old kernels are available for download at https://koji.fedoraproject.org/koji/packageinfo?packageID=8 : This bug is new. 4. Can you reproduce this issue? If so, please provide the steps to reproduce the issue below: 5. Does this problem occur with the latest Rawhide kernel? To install the Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by ``sudo dnf update --enablerepo=rawhide kernel``: 6. Are you running any modules that not shipped with directly Fedora's kernel?: 7. Please attach the kernel logs. You can get the complete kernel log for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the issue occurred on a previous boot, use the journalctl ``-b`` flag.
*** This bug has been marked as a duplicate of bug 2071969 ***