Messages in this thread | | | Date | Thu, 13 Dec 2018 11:08:16 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH 1/8] perf: Allow to block process in syscall tracepoints |
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On Thu, Dec 13, 2018 at 11:01:49AM +0100, Peter Zijlstra wrote: > - the wakeups side is icky; the best I can come up with is making the > data page R/O and single stepping on write fault, but that isn't > multi-threading safe.
We can emulate the instruction, that would actually work and be thread safe. Just a small matter of decoding and interpreting any possible write instruction ;-)
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