Re: perf/tracepoint: another fuzzer generated lockup

[Peter Zijlstra]

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.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/