Jonathan Bastien-Filiatrault wrote: > Brian Paul wrote: > >> Jonathan Bastien-Filiatrault wrote: >> >>> [snip] >>> at around 45-50 fps with a 960 face model in zpass mode. >>> >>> PS: Have you noticed that some versions of the newer mesa does not >>> seem to like mixing plain old vertex arrays with VBOs ? The mesa in >>> Debian unstable(7.0.1) does not segfault on me with direct rendering >>> with mixed code. >>> >> >> Are you saying 7.0.1 works as expected but Mesa from git (or the swz >> branch) doesn't work? I don't quite follow what you're saying. >> > Sorry for the non-sequitur. The latest git and the swz branch tend to > segfault when mixing VBOs with plain old vertex arrays with DRI. This > problem is not present with the mesa in Debian. Disabling hardware > acceleration prevents the segfault. I am using the latest DDX and DRM > code. The kernel is 2.6.22.9 vanilla. The machine is a Dell D620, AMD64. > Here are the few last lines from valgrind: > > ==21659== Invalid read of size 8 > ==21659== at 0x806F3C9: _tnl_draw_prims (t_draw.c:131) > ==21659== by 0x8067E83: vbo_exec_DrawArrays (vbo_exec_array.c:259) > ==21659== by 0x805C413: neutral_DrawArrays (vtxfmt_tmp.h:328) > ==21659== by 0x41E9D3: OglGeometry::drawShadowVolume(RenderPass > const&) (geometry.cpp:315) > ^^ vertex array draw > ==21659== by 0x41EBE8: OglGeometry::render(RenderPass const&) > (geometry.cpp:357) > ==21659== by 0x41697F: Drawable::draw(RenderPass const&) (drawable.h:32) > ==21659== by 0x4169AF: DrawableObject::draw(RenderPass const&) > (drawableobject.h:14) > ==21659== by 0x416DC3: Node::draw(RenderPass const&) (node.cpp:24) > ==21659== by 0x417BBA: Scene::render() (scene.cpp:111) > ==21659== by 0x4138FE: Window::draw() (window.cpp:242) > ==21659== by 0x41393D: Window::draw_cb() (window.cpp:36) > ==21659== by 0x4C4639A: processWindowWorkList (glut_event.c:1306) > ==21659== Address 0x1C5D7558 is not stack'd, malloc'd or (recently) free'd > > I am pretty sure I am not passing invalid pointers to mesa. Shall I > write a test case ? Do you want to have a look at the code ?
It would be ideal if you could provide a small test program and file a bug report. I'm working on tracking down a couple other VBO bugs in between other things... -Brian ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
