https://bugs.freedesktop.org/show_bug.cgi?id=30030

Summary: [r300g, bisected] Crash in loop_control_visitor::visit_leave(ir_loop*) () Product: Mesa Version: git Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Drivers/DRI/r300 AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: Magnus.Kessler@gmx.net

Since commit 8df2dbf91ddfd0c1590e33015e85470b67e69319 the OpenSceneGraph based fgfs (flightgear) crashes in loop_control_visitor::visit_leave(ir_loop*) () with the following backtrace:

#0 0x00007f920dc15785 in *__GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 #1 0x00007f920dc16c06 in *__GI_abort () at abort.c:92 #2 0x00007f920dc0e305 in *__GI___assert_fail ( assertion=0x7f920b875c89 "ls != __null", file=<value optimized out>, line=177, function=<value optimized out>) at assert.c:81 #3 0x00007f920b6ddb6f in loop_control_visitor::visit_leave(ir_loop*) () from /usr/lib64/dri/r300_dri.so #4 0x00007f920b6ceb48 in visit_list_elements(ir_hierarchical_visitor*, exec_list*) () from /usr/lib64/dri/r300_dri.so #5 0x00007f920b6cf4ff in ir_if::accept(ir_hierarchical_visitor*) () from /usr/lib64/dri/r300_dri.so #6 0x00007f920b6ceb48 in visit_list_elements(ir_hierarchical_visitor*, exec_list*) () from /usr/lib64/dri/r300_dri.so #7 0x00007f920b6ceced in ir_function_signature::accept(ir_hierarchical_visitor*) () from /usr/lib64/dri/r300_dri.so #8 0x00007f920b6ceb48 in visit_list_elements(ir_hierarchical_visitor*, exec_list*) () from /usr/lib64/dri/r300_dri.so #9 0x00007f920b6ced5c in ir_function::accept(ir_hierarchical_visitor*) () from /usr/lib64/dri/r300_dri.so #10 0x00007f920b6ceb48 in visit_list_elements(ir_hierarchical_visitor*, exec_list*) () from /usr/lib64/dri/r300_dri.so #11 0x00007f920b6ddbd5 in set_loop_controls(exec_list*, loop_state*) () from /usr/lib64/dri/r300_dri.so #12 0x00007f920b6bfcce in do_common_optimization(exec_list*, bool) () from /usr/lib64/dri/r300_dri.so #13 0x00007f920b6dbe55 in link_shaders(__GLcontextRec*, gl_shader_program*) () from /usr/lib64/dri/r300_dri.so #14 0x00007f920b6a80ab in _mesa_glsl_link_shader () from /usr/lib64/dri/r300_dri.so #15 0x00007f920e852add in osg::Program::PerContextProgram::linkProgram ( this=0x7f91ece190e0, state=<value optimized out>) at /usr/src/debug/dev-games/openscenegraph-9999/openscenegraph-9999/src/osg/Program.cpp:518 #16 0x00007f920e851ca0 in osg::Program::apply (this=0x1044bcd0, state=...) [...]