Recent remove ctypes branch leads to segfault in plugin loader

[mattdawkins]

With the latest master merged as of a day ago, plugin_loading in VIAME fails only for python modules (segfault) whereas it didn't before this branch

Don't know the details, can look into more next week. Fresh build.

[mattdawkins]

The head directly before this merge also had an semi-related, in this realm, but probably different issue, for now I'm just going to avoid kwiver master going forward for the next couple weeks because I have a couple deliveries (which is okay)

2019-12-05 22:36:51.286 DEBUG plugin_loader.cxx(384): Loading plugins from: /home/matt/Dev/viame/build/install/lib/kwiver/modules/kwiver_algo_vxl_plugin.so 2019-12-05 22:36:51.287 DEBUG plugin_loader.cxx(384): Loading plugins from: /home/matt/Dev/viame/build/install/lib/kwiver/modules/modules_python.so 2019-12-05 22:36:51.328 DEBUG registration.cxx(150): Loading symbols from PYTHON_LIBRARY=/opt/noaa/python3/lib/libpython3.6m.so 2019-12-05 22:36:51.352 WARN registration.cxx(123): Ignore Python Exception: 2019-12-05 22:36:51.352 WARN registration.cxx(123): SyntaxError: from future imports must occur at the beginning of the file (init.py, line 12) 2019-12-05 22:36:51.352 WARN registration.cxx(123): 2019-12-05 22:36:51.352 WARN registration.cxx(123): At: 2019-12-05 22:36:51.352 WARN registration.cxx(123): /home/matt/Dev/viame/build/install/lib/python3.6/site-packages/kwiver/kwiver_process.py(39): 2019-12-05 22:36:51.352 WARN registration.cxx(123): (219): _call_with_frames_removed 2019-12-05 22:36:51.352 WARN registration.cxx(123): (678): exec_module 2019-12-05 22:36:51.352 WARN registration.cxx(123): (665): _load_unlocked 2019-12-05 22:36:51.352 WARN registration.cxx(123): (955): _find_and_load_unlocked 2019-12-05 22:36:51.352 WARN registration.cxx(123): (971): _find_and_load 2019-12-05 22:36:51.352 WARN registration.cxx(123): /home/matt/Dev/viame/build/install/lib/python3.6/site-packages/viame/processes/smqtk/smqtk_ingest_descriptors.py(36): 2019-12-05 22:36:51.352 WARN registration.cxx(123): (219): _call_with_frames_removed 2019-12-05 22:36:51.352 WARN registration.cxx(123): (678): exec_module 2019-12-05 22:36:51.352 WARN registration.cxx(123): (665): _load_unlocked 2019-12-05 22:36:51.352 WARN registration.cxx(123): (955): _find_and_load_unlocked 2019-12-05 22:36:51.352 WARN registration.cxx(123): (971): _find_and_load 2019-12-05 22:36:51.352 WARN registration.cxx(123): (219): _call_with_frames_removed 2019-12-05 22:36:51.352 WARN registration.cxx(123): (1031): _handle_fromlist 2019-12-05 22:36:51.352 WARN registration.cxx(123): /home/matt/Dev/viame/build/install/lib/python3.6/site-packages/viame/processes/smqtk/init.py(30): 2019-12-05 22:36:51.352 WARN registration.cxx(123): (219): _call_with_frames_removed 2019-12-05 22:36:51.352 WARN registration.cxx(123): (678): exec_module 2019-12-05 22:36:51.352 WARN registration.cxx(123): (665): _load_unlocked 2019-12-05 22:36:51.352 WARN registration.cxx(123): (955): _find_and_load_unlocked

[mattdawkins]

Correction, I think the above is also another issue on latest master it was just persisting after a branch switch, but fresh builds on older hashes makes it go away

[linus-sherrill]

@mattdawkins - is this still a problem for you?