I am also experiencing this problem. I have a CM5 running questing with 6.17.0-1004-raspi, and every so often networking locks up as per the description. It was fine with plucky and its 6.14 kernel.
Mine is also a Kubernetes node (using RKE2), running Calico, with both Calico and kube-proxy using the nftables back-end - so I think that mostly rules out bpf? If I keep the node running with a minimal workload (and the node cordoned) it's stable and doesn't seem to fail; if I let it run CronJobs then it reliably fails after a few days. The workaround setting the CPU scaling governor to "performance" did _not_ work for me. I tried this yesterday and networking still failed overnight, though I changed the setting after I had one of the RCU stall messages. I had no additional kernel log output until networking died and libceph noticed the mons disappearing. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2133877 Title: Complete network hang on Raspberry Pi 5 with kernel 6.17 under load - possibly related to CPU frequency scaling To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/2133877/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
