Messages in this thread | | | Date | Sun, 17 Nov 2013 10:43:20 +0100 | From | Peter Zijlstra <> | Subject | Re: perf/tracepoint: another fuzzer generated lockup |
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On Sun, Nov 17, 2013 at 04:53:59PM +0900, Masami Hiramatsu wrote: > Agreed. > FYI, kprobes has a recursion detection counter and it is reported via > debugfs/tracing/kprobe_profile :)
Perf also has a recursion counter (4 actually, not reported to userspace), but the problem with the irq_work_exit thing is that its a non-recursive event loop, so recursion checks don't actually work to catch it.
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