Bob Halley added the comment:
I rebuilt using --with-pydebug and -O0 -g. It now triggers an assertion a bit
earlier.
test_finalize (__main__.WithProcessesTestFinalize) ... Assertion failed:
(op->ob_refcnt == 0), function _PyTrash_destroy_chain, file Objects/object.c,
line 2433
(gdb) bt
New submission from Bob Halley :
For reasons not germane to this bug report, I was running a modified Python 2.7
where PyTrash_UNWIND_LEVEL in Include/object.h had been defined to 10 instead
of 50.
With such a python, running test_multiprocessing causes a BadInternalCall to be
triggered at
