Same here:
ubuntu@ubuntu:~$ uname -a
Linux ubuntu 6.8.0-57-generic #59-Ubuntu SMP PREEMPT_DYNAMIC Sat Mar 15
17:40:59 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
kube-proxy in a crash loop:
I0403 08:12:32.413122 1 proxier.go:803] "Sync failed" retryingTime="30s"
E0403 08:13:02.444595 1 proxier.go:1525] "Failed to execute
iptables-restore" err=<
exit status 2: Warning: Extension MARK revision 0 not supported,
missing kernel module?
ip6tables-restore v1.8.9 (nf_tables): unknown option "--xor-mark"
Error occurred at line: 17
Try `ip6tables-restore -h' or 'ip6tables-restore --help' for more
information.
>
I0403 08:13:02.444614 1 proxier.go:803] "Sync failed" retryingTime="30s"
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2104282
Title:
iptables NFLOG TRACE MARK incompatibility
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Noble:
Fix Committed
Bug description:
After upgrading to linux-image-6.8.0-56-generic my RKE2 based
kubernetes cluster on Ubuntu 24.04.2 LTS started having some problems.
The kubeproxy pods started crashlooping with an error that said
"Failed to execute iptables-restore"
err=<exit status 2: Warning: Extension MARK revision 0 not supported, missing
kernel module?
ip6tables-restore
v1.8.9 (nf_tables): unknown option "--xor-mark"
Bringing the kernel back to linux-image-6.8.0-55-generic immediately solved
the issue. Booting it back to linux-image-6.8.0-56-generic brought it back.
Had to test again to be certain as there was other changes to the cluster in
the last few hours.
cat /proc/version_signature: Ubuntu 6.8.0-55.57-generic 6.8.12
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