In-Vehicle eBPF Observability: Zero-Overhead Kernel Tracing for Automotive Safety

Deploying verified in-kernel eBPF bytecode programs to monitor IPC latencies, trace socket drops, and detect cybersecurity anomalies without modifying production binaries.

The eBPF In-Kernel Verifier: Guaranteeing Safety and Termination

Automotive safety mandates that dynamic instrumentation must never crash the kernel. Before any eBPF program attaches to a probe, the kernel verifier performs mathematical static analysis: it proves that all memory dereferences remain within allocated bounds, checks for uninitialized variables, and confirms that loops cannot run infinitely, eliminating kernel panics.

Tracing Inter-Process Communication Jitter with kprobes and tracepoints

eBPF maps hook directly into POSIX message queues and UNIX domain socket write routines. When an autonomous driving trajectory planner transmits steering angle setpoints, an eBPF probe records the precise CPU timestamp at socket entry and matches it against recipient wakeup. If IPC latency exceeds 500 microseconds, eBPF logs a backtrace without interrupting vehicle execution.

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