[Gmsh] gmsh-errors

[klzhang04 at mails.gucas.ac.cn]

hello,

I want to generate mesh with Gmsh today, but there was an error info as follow, and 
it cannot run normally now, and more seriously this error makes my computer very slow. How could i do with this?

 Is Physical Line(8) wrong?

Thanks very much

Best Regards

Keliang Zhang

>>>>>>>>>>>>>>>>>>>>>>>error  info>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Info    : -------------------------------------------------------
Info    : Gmsh version   : 2.0.7
Info    : Build OS       : CYGWIN_NT-5.1-no-cygwin
Info    : Build options  : GSL TRIANGLE NETGEN TETGEN JPEG PNG ZLIB MATHEVAL ANN OCC 
Info    : Build date     : Mon Apr  2 21:27:29 RDT 2007
Info    : Build host     : winxp
Info    : Packager       : Administrator
Info    : Home directory : C:\DOCUME~1\klzhang\LOCALS~1\Temp/
Info    : Launch date    : Tue Jan 22 16:28:04 2008
Info    : Command line   : G:\mesh\Gmsh\gmsh.exe 
Info    : -------------------------------------------------------
Info    : Reading 'G:/mesh/Gmsh/project/ac'
Info    : Read 'G:/mesh/Gmsh/project/ac'
Info    : Point(1) = {0,0,0,0.1};
Info    : Point(2) = {1,0,0,0.1};
Info    : Point(3) = {1,0.4,0,0.1};
Info    : Point(4) = {0,0.4,0,0.1};
Info    : Line(1) = {4,3};
Info    : Line(2) = {3,2};
Info    : Line(3) = {2,1};
Info    : Line(4) = {1,4};
Info    : Line Loop(5) = {1,2,3,4};
Info    : Plane Surface(6) = {5};
Info    : Physical Line(7) = {2};
Info    : Physical Line(8) = {1,4,3};
Info    : Physical Surface(9) = {6};
Info    : Meshing 1D...
Info    : Meshing curve 1
Info    : Meshing curve 2
Info    : Meshing curve 3
Info    : Meshing curve 4
Info    : Mesh 1D complete (0 s)
Info    : Mesh
Info    : Meshing 2D...
Info    : Meshing surface 6 (Plane)
Error   : 3 identical points in Qtest
Fatal   : Segmentation violation (invalid memory reference)
        : ------------------------------------------------------
        : You have discovered a bug in Gmsh! You may report it
        : by e-mail (together with any helpful data permitting to
        : reproduce it) to <gmsh at geuz.org>
Info    : Writing 'C:\DOCUME~1\klzhang\LOCALS~1\Temp/.gmsh-errors'
>>>>>>>>>>>>>>>>>>>>>>end of error info>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>