On Tue, 14 Jan 2025 10:29:04 -0800 Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx> wrote: > Seriously, though, the number of things that still run in hard irq context > in RT is so small that if some tracing BPF prog is attached there > it should be using prealloc mode. Full prealloc is still > the default for bpf hash map. The one thing to watch out for is hrtimer trace events. They will be called in hard irq context even in RT. If a BPF program is attached to one of them, then that could be an issue. -- Steve
