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Fatal Python error in Ice 3.6.4 (but not 3.6.3)

At, I have found a minimal example to reproduce this issue I encountered while using class with Ice 3.6.4's Python support on FreeBSD.

Fatal Python error: Types.cpp:3306 object at 0x806784610 has negative ref count -2604246222170760229

This crashes the python process and is therefore a show stopper.

Until now, I did not manage to run the same on other platforms yet, but it could be a cross-platform problem. Seems to work fine in 3.6.3.

Can you check if it's reproducible for you?



  • benoit
    benoit Rennes, France

    Hi Andreas,

    It works for me with Ice 3.6.4 on macOS. Can you run the python process in the debugger and get a stack trace of the crash?