http://bugs.freedesktop.org/show_bug.cgi?id=20539
Michel Dänzer <mic...@daenzer.net> changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|xorg-driver-...@lists.x.org |dri-
| |de...@lists.sourceforge.net
Component|Driver/Radeon |Drivers/DRI/r300
Product|xorg |Mesa
QAContact|xorg-t...@lists.x.org |
Version|7.4 |unspecified
--- Comment #16 from Michel Dänzer <mic...@daenzer.net> 2009-03-19 01:40:11
PST ---
The valgrind error below looks like the most likely culprit at this point.
Apparently the Mesa r300 driver is accessing texture object memory after it's
been freed. I'm not sure if it's the responsibility of the driver or the Mesa
core to prevent this, assuming the driver for now.
==27872== Invalid read of size 4
==27872== at 0x7A7F4BB: r300UpdateTexture (r300_texstate.c:576)
==27872== by 0x7A7F5A8: r300UpdateTextureState (r300_texstate.c:648)
==27872== by 0x7A782B9: r300UpdateShaderStates (r300_state.c:2685)
==27872== by 0x7A7B6D2: r300RunRender (r300_render.c:314)
==27872== by 0x7B135F3: _tnl_run_pipeline (t_pipeline.c:158)
==27872== by 0x7B13B64: _tnl_draw_prims (t_draw.c:402)
==27872== by 0x7B0C823: vbo_exec_vtx_flush (vbo_exec_draw.c:251)
==27872== by 0x7B07F27: vbo_exec_FlushVertices (vbo_exec_api.c:751)
==27872== by 0x7B98460: _mesa_PopAttrib (attrib.c:862)
==27872== by 0x5922AD0: __glXDisp_PopAttrib (indirect_dispatch.c:1445)
==27872== by 0x594C77E: __glXDisp_Render (glxcmds.c:1783)
==27872== by 0x5951079: __glXDispatch (glxext.c:523)
==27872== Address 0x4ec6e00 is 24 bytes inside a block of size 1,572 free'd
==27872== at 0x4024E3A: free (vg_replace_malloc.c:323)
==27872== by 0x7AD01AC: _mesa_free (imports.c:85)
==27872== by 0x7A60767: driDestroyTextureObject (texmem.c:353)
==27872== by 0x7A7E26D: r300DeleteTexture (r300_tex.c:1000)
==27872== by 0x7AF2F00: _mesa_reference_texobj (texobj.c:317)
==27872== by 0x7AF45A0: _mesa_DeleteTextures (texobj.c:852)
==27872== by 0x5926692: __glXDisp_DeleteTextures (indirect_dispatch.c:2848)
==27872== by 0x5951079: __glXDispatch (glxext.c:523)
==27872== by 0x808C51E: Dispatch (dispatch.c:437)
==27872== by 0x80716F4: main (main.c:397)
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