http://bugzilla.novell.com/show_bug.cgi?id=559091 http://bugzilla.novell.com/show_bug.cgi?id=559091#c0 Summary: Segmentation fault in g++ compiling OpenMP sequence in Blender 2.5 Classification: openSUSE Product: openSUSE 11.2 Version: Final Platform: i586 OS/Version: openSUSE 11.2 Status: NEW Severity: Normal Priority: P5 - None Component: Development AssignedTo: pth@novell.com ReportedBy: Uwe.Girlich@philosys.de QAContact: qa@suse.de Found By: --- Blocker: --- Created an attachment (id=329960) --> (http://bugzilla.novell.com/attachment.cgi?id=329960) preprocessed source code with openmp pagmas switched on User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 I could not compile OpenMP support into Blender 2.5 alpha because GCC segfaults in the fluid simulator of blender (called elbeem). Especially in the fluid simulator OpenMP brings massive performance improvements. I could compile without problems with OpenSuse 11.1 (gcc 4.3.2) but now not anymore with OpenSuse 11.2 (gcc 4.4.1). This problem was already reported at http://bugs.archlinux.org/task/14766 with gcc 4.4.0. But the mentioned "solution" (don't use OpenMP) is not usable. I'm doing lots of fluid animations and my Core i7 needs OpenMP do do them fast. Reproducible: Always Steps to Reproduce: 1.Get blender 2.5 alpha source code via svn from svn checkout https://svn.blender.org/svnroot/bf-blender/trunk/blender 2.Activate cmake option "WITH_OPENMP=ON". 3.Compile with cmake. Actual Results: Compilation will break at this file: https://svn.blender.org/svnroot/bf-blender/trunk/blender/intern/elbeem/inter... with a segfault of c++. I preprocessed the file and could reproduce it outside the blender build tree with this simple command line: girlich@suse112:~/projects/blender> /usr/bin/g++ -fopenmp -o solver_main_pre_omp.o -c solver_main_pre_omp.cpp solver_main_orig.cpp: In member function 'void LbmFsgrSolver::mainLoop(int)': solver_main_orig.cpp:1707: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://bugs.opensuse.org/> for instructions. The preprocessed file is attached. Expected Results: An object file solver_main.o. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.