Seg fault in hpx::serialization::output_archive::add_gid when running octotiger

[dmarce1]

I got a seg fault in hpx::serialization::output_archive::add_gid when running octotiger.

The full output is here:

https://gist.github.com/dmarce1/c1cfef5458857f7d7029

Most of the time I run the code, the future on line 231 of node_octstruct.cpp or the future on line 470 of node_server.cpp times out - the seg fault here is at the same stage in execution as the former, maybe the two are related.

This is with Octotiger dmarce1/octotiger@049ee7e and HPX ac9c127 (the latest HPX commit that I can compile without an Intel 15 bug popping up)

[hkaiser]

Looks like a race

[sithhell]

I think it's a stack overflow, can you try to run with a larger stack size?

[hkaiser]

@sithhell Do we still run serialization on a separate thread? If yes, we might want to increase the stack size for those by default.

[dmarce1]

Running with larger stack sizes seems to fix the problem. Though I've only gone for a couple hundred timesteps. I will wait to close the issue until its run further.

[hkaiser]

How much larger have you gone?

[hkaiser]

@dmarce1 how large did you make the stack for your application to run?