[issue29470] [python] Error in `/usr/bin/python': free(): invalid size: 0x00007f628400d0e0

[STINNER Victor]

STINNER Victor added the comment:

Python 3.6 got a new PYTHONMALLOC env var which should help you ;-)

Please try to get the Python traceback on the crash and use Python builtin memory debugger:

PYTHONMALLOC=debug python3 -X faulthandler ...


> i've restarted this under valgrind to debug it. valgrind's startup of python 3.6 is depressingly filled with invalid read of size n, (...)

Python memory allocator pymalloc causes false alarms. You can disable pymalloc to use Valgrind using:

PYTHONMALLOC=malloc valgrind python3 ...

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nosy: +haypo

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<http://bugs.python.org/issue29470>
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