Sean T Allen comments

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                                            Sean T Allen

Segmentation fault when actor receives a reference to itself via a class created in a different actor.

Ok, issue located. @sylvanc will be working on this. Thank you everyone who contributed to finding this. Extra props to @Perelandric for lots of narrowing down a minimal case and...

Segmentation fault when actor receives a reference to itself via a class created in a different actor.

I'm trying to verify that #1507 fixes this issue but I'm unable to reproduce the reported problem. OSX El Capitan. LLVM 3.9.1 @Praetonus @Perelandric @aturley can any of you reproduce?

Segmentation fault when actor receives a reference to itself via a class created in a different actor.

Just an update. @sylvanc is still working on a fix for this.

Segmentation fault when actor receives a reference to itself via a class created in a different actor.

Original version still segfaults as of 0.21.0

Segmentation fault when actor receives a reference to itself via a class created in a different actor.

The original version of this segfaults if I add some @printf output that slows everything down some. But, only when doing an optimized build. 0.32.0-a7a80758 [release] compiled with: llvm 7.0.1...

Segmentation fault when actor receives a reference to itself via a class created in a different actor.

The original version of this segfaults for me but none of the others. I looked at it for a while and I'm somewhat confused. I hope to be able to...

Segmentation fault when actor receives a reference to itself via a class created in a different actor.

The original version that segfaults doesn't if the usage of `Payload val` is changed to `Payload` so that an `iso` never becomes a `val`. There's still a bug there. works:...

Segmentation fault when actor receives a reference to itself via a class created in a different actor.

Here's an updated example for what still fails: ```pony use "collections" interface val ResponseHandler fun val apply(request: Payload val, response: Payload): Any interface val RequestHandler fun val apply(request: Payload): Any...

Segmentation fault when actor receives a reference to itself via a class created in a different actor.

Here's the backtrace: ``` * thread #8, name = '1118-1', stop reason = signal SIGSEGV: invalid address (fault address: 0x58) * frame #0: 0x00000000004158ab 1118-1`pony_traceunknown(ctx=0x00007ffff7c22108, p=0x00007fffde3f1400, m=1) at trace.c:127:18 frame...

Segmentation fault when actor receives a reference to itself via a class created in a different actor.

I've been playing around with this and sometimes, I get this assert on line 755 of actor.c to trigger: ``` // Make sure we're not trying to send a message...