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SubjectRe: perf/tracepoint: another fuzzer generated lockup
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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