Patch submitted: https://lists.ubuntu.com/archives/kernel- team/2024-July/152466.html
** Description changed: - We are trying to get eBPF to work for microk8s in the LXD's - `ubuntu:22.04` images which use the `-kvm` variant. + [ Impact ] - With this kernel we are getting this error: + Unable to run k8s and other software relying on Cilium. - level=warning msg="Unable to ensure that BPF JIT compilation is enabled. This can be ignored when Cilium is running inside non-host network namespace (e.g. with kin - d or minikube)" error="could not open the sysctl file /host/proc/sys/net/core/bpf_jit_enable: open /host/proc/sys/net/core/bpf_jit_enable: no such file or directory - " subsys=sysctl sysParamName=net.core.bpf_jit_enable sysParamValue=1 + [ Fix ] - We've confirmed this works fine in the 22.04 generic kernel, so please - can we have similar eBPF support in the `-kvm` variant kernel. + Enable required configs and prerequisite. + Which consist of: + CONFIG_BPF_JIT + CONFIG_BPF_JIT_DEFAULT_ON + CONFIG_NET_EGRESS + CONFIG_NET_SCHED + CONFIG_NET_SCH_INGRESS + CONFIG_NET_CLS + CONFIG_NET_CLS_CGROUP + CONFIG_NET_CLS_BPF + CONFIG_NET_CLS_ACT + CONFIG_NET_SCH_FIFO + CONFIG_CRYPTO_USER_API + CONFIG_CRYPTO_USER_API_HASH + CONFIG_SCHEDSTATS + These configs are already enabled in generic kernel. - Suspect we need these config options enabled: + [ Test Plan ] - ``` - CONFIG_BPF_SYSCALL=y - CONFIG_BPF_JIT=y - ``` + Tested with Cilium. + [ Where problems could occur ] - It would also be useful to ensure that the kernel config is available in /proc/config.gz or /boot/config (if not already) so that applications can discover which config options are enabled. + eBPF misbehavior. + Network regression due to enable network configuration. ** Description changed: [ Impact ] Unable to run k8s and other software relying on Cilium. [ Fix ] Enable required configs and prerequisite. Which consist of: CONFIG_BPF_JIT CONFIG_BPF_JIT_DEFAULT_ON CONFIG_NET_EGRESS CONFIG_NET_SCHED CONFIG_NET_SCH_INGRESS CONFIG_NET_CLS CONFIG_NET_CLS_CGROUP CONFIG_NET_CLS_BPF CONFIG_NET_CLS_ACT CONFIG_NET_SCH_FIFO CONFIG_CRYPTO_USER_API CONFIG_CRYPTO_USER_API_HASH CONFIG_SCHEDSTATS These configs are already enabled in generic kernel. [ Test Plan ] - Tested with Cilium. + Tested with Cilium successfully. [ Where problems could occur ] eBPF misbehavior. Network regression due to enable network configuration. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-kvm in Ubuntu. https://bugs.launchpad.net/bugs/2073973 Title: Add eBPF support to ubuntu:22.04 -kvm variant kernel Status in cloud-images: New Status in linux-kvm package in Ubuntu: New Status in linux-kvm source package in Jammy: In Progress Bug description: [ Impact ] Unable to run k8s and other software relying on Cilium. [ Fix ] Enable required configs and prerequisite. Which consist of: CONFIG_BPF_JIT CONFIG_BPF_JIT_DEFAULT_ON CONFIG_NET_EGRESS CONFIG_NET_SCHED CONFIG_NET_SCH_INGRESS CONFIG_NET_CLS CONFIG_NET_CLS_CGROUP CONFIG_NET_CLS_BPF CONFIG_NET_CLS_ACT CONFIG_NET_SCH_FIFO CONFIG_CRYPTO_USER_API CONFIG_CRYPTO_USER_API_HASH CONFIG_SCHEDSTATS These configs are already enabled in generic kernel. [ Test Plan ] Tested with Cilium successfully. [ Where problems could occur ] eBPF misbehavior. Network regression due to enable network configuration. To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-images/+bug/2073973/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
