Python 3.6 + boost::python::str results in Bus error at end of Python process #248
Comments
|
I've got the same bug with python 3.7 and boost-1.69: Python is compiled from sources (3.7.2) on Fedora 29 and boost is compiled from sources too. |
|
I couldn't reproduce the problem with python-3.7.4 and boost-1.71.0 anymore. #include <boost/python.hpp>
#include <boost/python/str.hpp>
using namespace boost::python;
class teststr3 {
public:
static list aaa_list;
static const str aaa1;
static const str aaa2;
teststr3()
{
aaa_list.append(aaa1);
aaa_list.append(aaa2);
}
str get(int i) {
if (i==1) {
return aaa1;
} else {
return aaa2;
}
}
};
list teststr3::aaa_list;
const str teststr3::aaa1("1 AAA BBB CCC");
const str teststr3::aaa2("2 AAA BBB CCC");
BOOST_PYTHON_MODULE(teststr3) {
using namespace boost::python;
class_<teststr3>("teststr3")
.def("get", &teststr3::get);
}
/*
g++ -g -DPIC -shared -fpic -o teststr3.so teststr3.cc -L/usr/local/boost-1_71_0-py374/lib -lboost_python37 -I/usr/local/python374/include/python3.7dm -I/usr/local/boost-1_71_0-py374/include -Wl,-rpath,/usr/local/boost-1_71_0-py374/lib
*/ |
|
With python-3.7.5(debug build) and GDB, I tried step execution. Python-3.7.5/Objects/listobject.c static void
list_dealloc(PyListObject *op)
{
Py_ssize_t i;
PyObject_GC_UnTrack(op);
Py_TRASHCAN_SAFE_BEGIN(op) // <--- SIGSEGV here!!The macro definition is #define Py_TRASHCAN_SAFE_BEGIN(op) \
do { \
PyThreadState *_tstate = PyThreadState_GET(); \
if (_tstate->trash_delete_nesting < PyTrash_UNWIND_LEVEL) { \
++_tstate->trash_delete_nesting;
/* The body of the deallocator is here. */
So, |
|
A patch on python which has worked for me on Python-3.6.7 (works also for other versions, but you need to adapt it): This is a workaround and not a fix ... |
|
If possible, I need a workaround at the side of boost.python, not Python. Though, Python's issue, https://bugs.python.org/issue17703 |
|
I opened an issue at Python Bug Tracker, |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
On Python 3.6, when boost::python::str constructor is used at global scope, I receive "Bus error" at end of python process.
Python 3.4 and 3.5 worked fine, no errors.
My environment
x86_64boost-1_69_0rh-python36-python-3.6.3-3.el7.x86_64and AnacondaSource code
Compile
Run
Prepare test python script.
with gdb
The text was updated successfully, but these errors were encountered: