v8: seeing fatal "Missing deoptimization information for OptimizedFrame::Summarize" when attempting to get stack trace from JSDate::CurrentTimeValue

[Demetrios Tsillas]

I have some code I use to gather statistical information out of v8 by capturing stack traces at a few defined points.

This code worked fine with 66 but I have re-based to 68 and now see aw snap crashes with missing de-optimization information.

I saw the work from https://groups.google.com/forum/#!msg/v8-reviews/XYX3q0SF580/bpNuPb4NBgAJ but I have this fix already.

The failure is on the topmost frame which I expect would be for the internal call to:

  chrome_child.dll!v8::internal::Runtime_DateCurrentTime(int args_length, v8::internal::Object * * args_object, v8::internal::Isolate * isolate) Line 24 C++

I see where the call to Summarize checks for Code::BUILTIN. Is there a case where we might not have that kind() .

I see the TODO:

  // Delegate to JS frame in absence of turbofan deoptimization.

  // TODO(turbofan): Revisit once we support deoptimization across the board.

Is it possible to return JavaScriptFrame::Summarize(frames) if no deoptimization is found?

thanks!!!
-Jim.

[Jakob Kummerow]

-chromium-dev +v8-dev

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[Demetrios Tsillas]

Some additional info: the code->kind() is equal to 0 which is defined as an OPTIMIZED_FUNCTION.