[QGIS-Developer] Random crashes while running python tests on latest master

[Alessandro Pasotti]

Hi,

occasionally (very rarely) I observed this error while running
test_qgsserver_wms.py:

*** Error in `python3': double free or corruption (out): 0x00007f9b4c0057a0
***
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x777e5)[0x7f9befb347e5]
/lib/x86_64-linux-gnu/libc.so.6(+0x7fe0a)[0x7f9befb3ce0a]
/lib/x86_64-linux-gnu/libc.so.6(cfree+0x4c)[0x7f9befb4098c]
/usr/lib/x86_64-linux-gnu/libspatialite.so.7(gaiaOutBufferReset+0x11)[0x7f9be3451bc1]
/usr/lib/x86_64-linux-gnu/libspatialite.so.7(+0x33d8d2)[0x7f9be37328d2]
/usr/lib/x86_64-linux-gnu/libspatialite.so.7(spatialite_cleanup_ex+0x22)[0x7f9be34c3412]
/home/ale/dev/QGIS/build-local-qt5/output/lib/libqgis_core.so.2.99.0(_ZN12QgsSLConnect13sqlite3_closeEP7sqlite3+0x63)[0x7f9be71a80c3]
/home/ale/dev/QGIS/build-local-qt5/output/lib/qgis/plugins/libspatialiteprovider.so(+0x500ff)[0x7f9bb18c40ff]
/home/ale/dev/QGIS/build-local-qt5/output/lib/qgis/plugins/libspatialiteprovider.so(+0x4fe47)[0x7f9bb18c3e47]
/home/ale/dev/QGIS/build-local-qt5/output/lib/qgis/plugins/libspatialiteprovider.so(+0x3e179)[0x7f9bb18b2179]
/home/ale/dev/QGIS/build-local-qt5/output/lib/qgis/plugins/libspatialiteprovider.so(+0x57822)[0x7f9bb18cb822]
/home/ale/dev/QGIS/build-local-qt5/output/lib/qgis/plugins/libspatialiteprovider.so(+0x6a0dc)[0x7f9bb18de0dc]
/home/ale/dev/QGIS/build-local-qt5/output/lib/qgis/plugins/libspatialiteprovider.so(+0x6a118)[0x7f9bb18de118]
/home/ale/dev/QGIS/build-local-qt5/output/lib/qgis/plugins/libspatialiteprovider.so(+0x514c6)[0x7f9bb18c54c6]
/home/ale/dev/QGIS/build-local-qt5/output/lib/qgis/plugins/libspatialiteprovider.so(+0x5198e)[0x7f9bb18c598e]
/lib/x86_64-linux-gnu/libc.so.6(+0x39ff8)[0x7f9befaf6ff8]
/lib/x86_64-linux-gnu/libc.so.6(+0x3a045)[0x7f9befaf7045]
python3[0x5feb5f]
python3[0x5fec4a]
python3(PyErr_PrintEx+0x36)[0x5fecb6]
python3(PyRun_SimpleFileExFlags+0x1d9)[0x5ff979]
python3(Py_Main+0x456)[0x63e7d6]
python3(main+0xe1)[0x4cfe41]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f9befadd830]
python3(_start+0x29)[0x5d5f29]
======= Memory map: ========

I don't think this is related to the test itself.



-- 
Alessandro Pasotti
w3:   www.itopen.it
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