<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - SIGSEGV src/mesa/main/bufferobj.c:291" href="https://bugs.freedesktop.org/show_bug.cgi?id=64568#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - SIGSEGV src/mesa/main/bufferobj.c:291" href="https://bugs.freedesktop.org/show_bug.cgi?id=64568">bug 64568</a> from <a class="email" href="mailto:jfonseca@vmware.com" title="José Fonseca <jfonseca@vmware.com>"> José Fonseca</a> <pre>> 614ee25077b7ffafeb87b22563d01856824fb4bc is the first bad commit > commit 614ee25077b7ffafeb87b22563d01856824fb4bc > Author: Marek Olšák <<a href="mailto:maraeo@gmail.com">maraeo@gmail.com</a>> > Date: Thu May 2 02:38:43 2013 +0200 > > st/mesa: initialize all program constants and UBO limits > > Also simplify UBO support checking. > > NOTE: This is a candidate for the 9.1 branch. > > Reviewed-by: Brian Paul <<a href="mailto:brianp@vmware.com">brianp@vmware.com</a>> I confirm the same here. The output of glxinfo changed radically with this patch: --- /tmp/old.txx 2013-05-14 16:24:41.543837747 +0100 +++ /tmp/new.txx 2013-05-14 16:25:47.448257369 +0100 @@ -126,7 +126,7 @@ GL_MAX_TEXTURE_LOD_BIAS_EXT = 16 GL_MAX_DRAW_BUFFERS_ARB = 8 GL_VERTEX_PROGRAM_ARB: - GL_MAX_PROGRAM_INSTRUCTIONS_ARB = 16384 + GL_MAX_PROGRAM_INSTRUCTIONS_ARB = 1048576 GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB = 1048576 GL_MAX_PROGRAM_TEMPORARIES_ARB = 256 GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB = 256 @@ -134,26 +134,26 @@ GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB = 32384 GL_MAX_PROGRAM_ATTRIBS_ARB = 16 GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB = 32 - GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB = 1 + GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB = 16 GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB = 16 GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB = 4096 GL_MAX_PROGRAM_ENV_PARAMETERS_ARB = 256 GL_FRAGMENT_PROGRAM_ARB: - GL_MAX_PROGRAM_INSTRUCTIONS_ARB = 16384 + GL_MAX_PROGRAM_INSTRUCTIONS_ARB = 1048576 GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB = 1048576 GL_MAX_PROGRAM_TEMPORARIES_ARB = 256 GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB = 256 GL_MAX_PROGRAM_PARAMETERS_ARB = 32384 GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB = 32384 - GL_MAX_PROGRAM_ATTRIBS_ARB = 12 + GL_MAX_PROGRAM_ATTRIBS_ARB = 32 GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB = 32 - GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB = 0 + GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB = 16 GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB = 16 GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB = 4096 GL_MAX_PROGRAM_ENV_PARAMETERS_ARB = 256 - GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB = 16384 - GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB = 16384 - GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB = 16384 + GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB = 1048576 + GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB = 1048576 + GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB = 1048576 GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB = 1048576 GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB = 1048576 GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB = 1048576 I suspect that this is causing a buffer overflow somewhere.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>