Infinite Loop? findHomography() never finish its calculation on Linux (Bug #76)

In some cases and environments, "findHomography()" function seems to take very long time for calculation, like infinite loop.

Please run the following code with attached file "vec_3.xml" on Linux.

    FileStorage cvfs("vec_3.xml", [[FileStorage]]::READ);
    FileNode cvfn(cvfs.fs,NULL);
    vector<Point2f>    reg_vec, query_vec;
    Point2f    pt;
    FileNode qfn = cvfn[[query_vec]];
    FileNodeIterator    it = qfn.begin();
    while(it != qfn.end()){
        pt.x = (float)(*it);
        it++;
        pt.y = (float)(*it);
        query_vec.push_back(pt);
        it++;
    }
    FileNode rfn = cvfn[[reg_vec]];
    FileNodeIterator    it2 = rfn.begin();
    while(it2 != rfn.end()){
        pt.x = (float)(*it2);
        it2++;
        pt.y = (float)(*it2);
        reg_vec.push_back(pt);
        it2++;
    }
    Mat poseMat = findHomography(reg_vec, query_vec, CV_RANSAC, 5);

Strange to say, this problem did not occur on Windows environment (Win XP, VC++2008 express). At Windows, findHomography() returned array filled with "0".

We found this phenomenon at the following environment:

[[CentOS]] release 5.4 (Final)
Linux version 2.6.18-164.10.1.el5 ([email protected]) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)) #1 SMP Thu Jan 7 20:00:41 EST 2010
gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-46)
CPU：Quad-Core AMD Opteron(tm) Processor 1352 2.1G 64bit
RAM: 1G

[[CentOS]] release 5.4 (Final)
Linux version 2.6.18-164.10.1.el5 ([email protected]) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)) #1 SMP Thu Jan 7 20:00:41 EST 2010
gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-46)
CPU：Intel(R) Pentium(R) 4 CPU 3.20GHz 32bit
RAM: 1G