(gdb) disass 0x00007f0c40002000,+30 Dump of assembler code from 0x7f0c40002000 to 0x7f0c4000201e: => 0x00007f0c40002000: push %rbp <<<< Missing ENDBR 0x00007f0c40002001: mov %rsp,%rbp 0x00007f0c40002004: push %r15 0x00007f0c40002006: push %r14 0x00007f0c40002008: push %r13 0x00007f0c4000200a: push %r12 0x00007f0c4000200c: push %rbx 0x00007f0c4000200d: and $0xffffffffffffffe0,%rsp 0x00007f0c40002011: sub $0x60,%rsp 0x00007f0c40002015: mov 0x30(%rbp),%r14 0x00007f0c40002019: mov 0x10(%rbp),%rax 0x00007f0c4000201d: lea -0x1(%rcx),%ebx End of assembler dump. (gdb) bt #0 0x00007f0c40002000 in () #1 0x00007f0c69c8a106 in llvm_pipeline_generic.constprop () at /usr/lib64/dri/swrast_dri.so #2 0x00007f0c69c8a613 in llvm_middle_end_linear_run () at /usr/lib64/dri/swrast_dri.so #3 0x00007f0c69c1de3a in vsplit_run_linear () at /usr/lib64/dri/swrast_dri.so #4 0x00007f0c69c17773 in draw_pt_arrays () at /usr/lib64/dri/swrast_dri.so #5 0x00007f0c69c17c90 in draw_vbo () at /usr/lib64/dri/swrast_dri.so #6 0x00007f0c693b06fb in llvmpipe_draw_vbo () at /usr/lib64/dri/swrast_dri.so #7 0x00007f0c69c363ca in blitter_draw () at /usr/lib64/dri/swrast_dri.so #8 0x00007f0c69c36733 in blitter_draw_tex () at /usr/lib64/dri/swrast_dri.so #9 0x00007f0c69c36e5d in do_blits () at /usr/lib64/dri/swrast_dri.so #10 0x00007f0c69c394e6 in util_blitter_blit_generic () at /usr/lib64/dri/swrast_dri.so #11 0x00007f0c69c3a672 in util_blitter_blit () at /usr/lib64/dri/swrast_dri.so #12 0x00007f0c693cf8e7 in lp_blit () at /usr/lib64/dri/swrast_dri.so #13 0x00007f0c69c3c862 in util_gen_mipmap () at /usr/lib64/dri/swrast_dri.so #14 0x00007f0c6979b887 in st_generate_mipmap () at /usr/lib64/dri/swrast_dri.so #15 0x00007f0c69835e9b in generate_texture_mipmap_error () at /usr/lib64/dri/swrast_dri.so #16 0x00007f0d7006f0f1 in _cogl_texture_gl_generate_mipmaps () at /usr/lib64/mutter-5/libmutter-cogl-5.so.0 #17 0x00007f0d700a0e47 in _cogl_texture_2d_pre_paint () at /usr/lib64/mutter-5/libmutter-cogl-5.so.0 #18 0x00007f0d700938f1 in _cogl_pipeline_layer_pre_paint () at /usr/lib64/mutter-5/libmutter-cogl-5.so.0 #19 0x00007f0d70081faf in _cogl_rectangles_validate_layer_cb () at /usr/lib64/mutter-5/libmutter-cogl-5.so.0 #20 0x00007f0d700904a9 in cogl_pipeline_foreach_layer () at /usr/lib64/mutter-5/libmutter-cogl-5.so.0 #21 0x00007f0d700823d6 in _cogl_framebuffer_draw_multitextured_rectangles () at /usr/lib64/mutter-5/libmutter-cogl-5.so.0 #22 0x00007f0d700acb66 in cogl_framebuffer_draw_textured_rectangle () at /usr/lib64/mutter-5/libmutter-cogl-5.so.0 #23 0x00007f0d7061d60a in meta_background_get_texture () at /lib64/libmutter-5.so.0 #24 0x00007f0d7061b1e9 in meta_background_actor_paint () at /lib64/libmutter-5.so.0 #25 0x00007f0d707f2b7f in clutter_actor_continue_paint () at /usr/lib64/mutter-5/libmutter-clutter-5.so.0 #26 0x00007f0d707f9d14 in clutter_actor_paint () at /usr/lib64/mutter-5/libmutter-clutter-5.so.0 #27 0x00007f0d708578e2 in clutter_stage_paint () at /usr/lib64/mutter-5/libmutter-clutter-5.so.0 #28 0x00007f0d70606981 in meta_stage_paint () at /lib64/libmutter-5.so.0 #29 0x00007f0d707f2b7f in clutter_actor_continue_paint () at /usr/lib64/mutter-5/libmutter-clutter-5.so.0 #30 0x00007f0d707f9d14 in clutter_actor_paint () at /usr/lib64/mutter-5/libmutter-clutter-5.so.0 #31 0x00007f0d7085c985 in clutter_stage_do_paint_view () at /usr/lib64/mutter-5/libmutter-clutter-5.so.0 #32 0x00007f0d70606884 in meta_stage_paint_view () at /lib64/libmutter-5.so.0 #33 0x00007f0d70858cd0 in _clutter_stage_paint_view () at /usr/lib64/mutter-5/libmutter-clutter-5.so.0 #34 0x00007f0d70890445 in paint_stage () at /usr/lib64/mutter-5/libmutter-clutter-5.so.0 #35 0x00007f0d70890c87 in clutter_stage_cogl_redraw_view () at /usr/lib64/mutter-5/libmutter-clutter-5.so.0 #36 0x00007f0d708918e3 in clutter_stage_cogl_redraw () at /usr/lib64/mutter-5/libmutter-clutter-5.so.0 #37 0x00007f0d708595d3 in _clutter_stage_do_update () at /usr/lib64/mutter-5/libmutter-clutter-5.so.0 #38 0x00007f0d70842509 in clutter_clock_dispatch () at /usr/lib64/mutter-5/libmutter-clutter-5.so.0 --Type <RET> for more, q to quit, c to continue without paging-- #39 0x00007f0d711dd510 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0 #40 0x00007f0d711dd8a0 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0 #41 0x00007f0d711ddb93 in g_main_loop_run () at /lib64/libglib-2.0.so.0 #42 0x00007f0d70640d90 in meta_run () at /lib64/libmutter-5.so.0 #43 0x000056357b2c1cad in main () (gdb)
This bug appears to have been reported against 'rawhide' during the Fedora 33 development cycle. Changing version to 33.
Fixed as of LLVM 11.