http://bugs.freedesktop.org/show_bug.cgi?id=27141
--- Comment #2 from Chris Rankin <ranki...@googlemail.com> 2010-03-18 07:47:02 PST --- The problem happens when destroying the GLContext: - we call _mesa_free_context_data(), which sets ctx->DrawBuffer = NULL - _mesa_free_context_data() then calls _mesa_free_texture_data() - _mesa_free_texture_data() calls r600DeleteTexture() - r600DeleteTexture() calls radeonFlush() via radeon_firevertices() - radeonFlush() tries to dereference ctx->DrawBuffer, which has just been set to NULL - BANG! Adding a simple (ctx->DrawBuffer != NULL) check to radeonFlush() makes 43 of the vertProg1 piglit tests pass, with 2 failures: Program: RSQ test 2 (reciprocal square root of negative value) Expected color: -1, 0.1, 0.447, 1 Observed color: 0, 0, 0, 0 Program: LIT test 2 (degenerate case: 0 ^ 0 -> 1) Expected color: 1, 0.65, 1, 1 Observed color: 1, 0.65098, 0, 1 -- Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
