Hi Jerome, thanks for your post. In the weekend I did some checks but it just made myself more confused.
I downloaded the source of Mesa-6.5.1 , I configured for just making trident dri and started the compilation with make linux-dri-x86 By the way, before the make, in src/mesa/drivers/dri/trident/trident_context.c I had to alter some constants (namely ddx_expected and dri_excepted) to let them used by Mesa. Running glxinfo shows direct rendering usage (see http://w3.externet.hu/~brazso/cases/Mesa%20(R300)%20Segfault/glxinfo.txt). But starting glxgears causes segmentation fault. ------------------------------------------------ [EMAIL PROTECTED] ~/zb/Mesa-6.5.1/progs/xdemos $ gdb ./glxgears GNU gdb 6.4 Copyright 2005 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i686-pc-linux-gnu"...Using host libthread_db library "/lib/libthread_db.so.1". (gdb) r Starting program: /home/jucus/zb/Mesa-6.5.1/progs/xdemos/glxgears [Thread debugging using libthread_db enabled] [New Thread -1213606224 (LWP 9471)] libGL warning: 3D driver returned no fbconfigs. _mesa_GenLists neutral_vertexAttrib4fvARB: 1, 0x1300 _tnl_VertexAttrib4fvARB: index=1, v=0x1300 choose: v=0x1300 attrib: v=0x1300 Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1213606224 (LWP 9471)] 0xb7987b8c in attrib_17_4 (v=0x1300) at t_vtx_generic.c:120 120 ATTRS( 17 ) (gdb) bt #0 0xb7987b8c in attrib_17_4 (v=0x1300) at t_vtx_generic.c:120 #1 0xb7983eb7 in choose_17_4 (v=0x1300) at t_vtx_api.c:479 #2 0xb7989fab in _tnl_VertexAttrib4fvARB (index=17, v=0x1300) at t_vtx_generic.c:556 #3 0xb79588ff in neutral_VertexAttrib4fvARB (index=1, v=0x1300) at vtxfmt_tmp.h:454 #4 0x0804a4b8 in init () at glxgears.c:353 #5 0x0804aec2 in main (argc=1, argv=0xbf8968d4) at glxgears.c:602 (gdb) q ------------------------------------------------ In glxgear.c:353 of init() glNewList function is invoked, its parameters are (list=1,mode=0x1300). I do not know why, but in fact neutral_VertexAttrib4fvARB is executed, it receives the parameters of glNewList. I placed some fprintf(stderr,...) trace lines into the code to find out what happens. (See the 5 lines after "libGL warning") glGenLists still invokes _mesa_GenLists, but glNewList does not start neither _mesa_NewList nor __indirect_glNewList just the afore mentioned neutral_VertexAttrib4fvARB. I also started glxgears with strace checking the loaded libraries (see http://w3.externet.hu/~brazso/cases/Mesa%20(R300)%20Segfault/glxgears.strace). I think they are OK, at least libGL*.so and trident_dri.so are mines. (mesa_cvs in the output of strace contains just proper links to "near" /usr/lib where Mesa places its libraries during "make install".) I especially analysed dlist.c and state.c from src/mesa/main to find out why not _mesa_NewList is called but so far without any result. I also do not understand that there is SET_NewList macro defined in dispatch.h (in src/mesa/glapi), but its fellows namely GET_NewList and CALL_NewList are never used. Then I tried to follow the working GenLists, but for the time being I do not know how _mesa_GenLists is called due to the plenty of macros and pointers usage :) Regards Brazso -- This message was sent on behalf of [EMAIL PROTECTED] at openSubscriber.com http://www.opensubscriber.com/message/dri-devel@lists.sourceforge.net/5222322.html ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
