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Crash in UV Editing after faces display turn off / on
Closed, ResolvedPublic

Description

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: Intel(R) HD Graphics 530 Intel 4.4.0 - Build 21.20.16.4839

Blender Version
Broken: version: 2.80 (sub 59), branch: blender2.7, commit date: 2019-04-24 22:25, hash: rBd966c2f0c2ad
Worked: (optional)

Short description of error
When I try to edit UV with faces display turned off, all mesh disappears. Then, then I click faces display on, whole application closes.

Exact steps for others to reproduce the error

  1. Launch Blender with default scene.
  2. Activate "UV Editing" workspace. Make sure you are in edit mode on the right pane and at least one face is selected.
  3. On the left pane click "Display" and turn off "Faces".
  4. On the left pane select at least one vertex and try to move it with "G" key.
  5. Whole unwrapped mesh disappears (this alone is buggy - expected behavior is: selected vertices are being grabbed, whole mesh is still visible).
  6. On the left pane click "Display" and turn on "Faces".
  7. Blender closes immediately.

Event Timeline

Sebastian Parborg (zeddb) triaged this task as Confirmed, Medium priority.Fri, Apr 26, 2:44 PM

Backtrace:

Thread 1 "blender" received signal SIGSEGV, Segmentation fault.
0x000055555cb10c3c in GPU_indexbuf_add_generic_vert (builder=0x0, v=0) at /home/zed/prog/blender/source/blender/gpu/intern/gpu_element.c:109
109	  assert(builder->data != NULL);
(gdb) bt
#0  0x000055555cb10c3c in GPU_indexbuf_add_generic_vert (builder=0x0, v=0) at /home/zed/prog/blender/source/blender/gpu/intern/gpu_element.c:109
#1  0x00005555587672fb in uvedit_fill_buffer_data (rdata=0x7fffd49be908, vbo_area=0x0, vbo_angle=0x0, vbo_fdots_pos=0x0, vbo_fdots_data=0x0, elb_vert=0x0,
    elb_edge=0x0, elb_face=0x7fffffffd310) at /home/zed/prog/blender/source/blender/draw/intern/draw_cache_impl_mesh.c:4600
#2  0x0000555558768e9f in mesh_create_uvedit_buffers (rdata=0x7fffd49be908, vbo_area=0x0, vbo_angle=0x0, vbo_fdots_pos=0x0, vbo_fdots_data=0x0, ibo_vert=0x0,
    ibo_edge=0x0, ibo_face=0x7fffd109d348) at /home/zed/prog/blender/source/blender/draw/intern/draw_cache_impl_mesh.c:4773
#3  0x000055555876b849 in DRW_mesh_batch_cache_create_requested (ob=0x7fffe53ca408, me=0x7fffe50eef08, ts=0x7fffeb3f0008, is_paint_mode=false, use_hide=false)
    at /home/zed/prog/blender/source/blender/draw/intern/draw_cache_impl_mesh.c:5289
#4  0x000055555ca30798 in uvedit_get_batches (ob=0x7fffe53ca408, sima=0x7fffe63f2008, ts=0x7fffeb3f0008, faces=0x7fffffffdae0, edges=0x7fffffffdae8,
    verts=0x7fffffffdaf0, facedots=0x7fffffffdaf8) at /home/zed/prog/blender/source/blender/editors/uvedit/uvedit_draw.c:196
#5  0x000055555ca30c70 in draw_uvs (sima=0x7fffe63f2008, scene=0x7fffe63c3008, obedit=0x7fffeb3f0c08, depsgraph=0x7fffdd8fe208)
    at /home/zed/prog/blender/source/blender/editors/uvedit/uvedit_draw.c:296
#6  0x000055555ca31835 in ED_uvedit_draw_main (sima=0x7fffe63f2008, ar=0x7fffe63eb1c8, scene=0x7fffe63c3008, view_layer=0x7fffe62a6e88,
    obedit=0x7fffeb3f0c08, obact=0x7fffeb3f0c08, depsgraph=0x7fffdd8fe208) at /home/zed/prog/blender/source/blender/editors/uvedit/uvedit_draw.c:505
#7  0x0000555558bb9861 in image_main_region_draw (C=0x7fffeb458208, ar=0x7fffe63eb1c8)
    at /home/zed/prog/blender/source/blender/editors/space_image/space_image.c:610
#8  0x0000555558cc6324 in ED_region_do_draw (C=0x7fffeb458208, ar=0x7fffe63eb1c8) at /home/zed/prog/blender/source/blender/editors/screen/area.c:558
#9  0x00005555582390ec in wm_draw_window_offscreen (C=0x7fffeb458208, win=0x7fffe6368488, stereo=false)
    at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_draw.c:596
#10 0x000055555823966a in wm_draw_window (C=0x7fffeb458208, win=0x7fffe6368488) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_draw.c:732
#11 0x0000555558239b76 in wm_draw_update (C=0x7fffeb458208) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_draw.c:895
#12 0x0000555558235b20 in WM_main (C=0x7fffeb458208) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm.c:424
#13 0x0000555557ba2d34 in main (argc=1, argv=0x7fffffffe088) at /home/zed/prog/blender/source/creator/creator.c:500