User reports the following sequence of events:

• Cilium starts up
• A new pod is created
• Cilium creates the endpoint
• Cilium fails to compile the endpoint (-ENOMEM)
• Cilium rewrites the BPF program Rewrote endpoint BPF program log message
• Cilium is able to rewrite the endpoint program and log Successful endpoint creation
• Cilium rewrites the BPF program again Rewrote endpoint BPF program log message
• Cilium restarts shortly (1 second) later
• New cilium starts up, and tries to restore the endpoint
• C header cannot be found: "C header file not found. Ignoring endpoint"
• Endpoint is ignored.

The pod then fails to connect anywhere. tcpdump on the lxc..... device shows unreplied ARP.