Array Modifer crashes Blender when Merge, Adjust Edit Cage, Start/End Cap, and Edit Mode are enabled #61816

New Issue

Joseph Brandenburg · 2019-02-21T19:39:34+01:00

2019-02-21 19:39:34 +01:00

System Information
Operating system: Mac OS High Sierra 10.13.5
Graphics card: Radeon Pro 560 4GB (Blender didn't detect it, for what that's worth)

I have a Windows bot at home I can check this for later.

Blender Version
Broken:
version: 2.80 (sub 44), branch: blender2.7, commit date: 2019-02-15 14:15, hash: faa255c0a4, type: Release
build date: 2019-02-15, 16:23:20

This is a pretty specific error. Create an array modifier with an end cap, start cap, or both. Now, enable merge in the array modifier, turn on edit mode, and set the modifier to show in the edit cage (it's the fourth button in the modifier settings, at the top). Now, enter edit mode and move a vertex to merge with the end/start cap object. Blender immediately crashes to desktop.

blenderBug_000.blend
From the .blend file attatched, just enter edit mode and move some verts.

**System Information** Operating system: Mac OS High Sierra 10.13.5 Graphics card: Radeon Pro 560 4GB (Blender didn't detect it, for what that's worth) I have a Windows bot at home I can check this for later. **Blender Version** Broken: version: 2.80 (sub 44), branch: blender2.7, commit date: 2019-02-15 14:15, hash: faa255c0a4e4, type: Release build date: 2019-02-15, 16:23:20 This is a pretty specific error. Create an array modifier with an end cap, start cap, or both. Now, enable merge in the array modifier, turn on edit mode, and set the modifier to show in the edit cage (it's the fourth button in the modifier settings, at the top). Now, enter edit mode and move a vertex to merge with the end/start cap object. Blender immediately crashes to desktop. [blenderBug_000.blend](https://archive.blender.org/developer/F6680597/blenderBug_000.blend) From the .blend file attatched, just enter edit mode and move some verts.

Joseph Brandenburg commented

2019-02-21 19:39:34 +01:00

Added subscriber: @Josephbburg

Joseph Brandenburg commented

2019-02-21 19:41:31 +01:00

Bug occurs on today's build, too.
version: 2.80 (sub 45), branch: master, commit date: 2019-02-21 14:33, hash: 8986c92b65, type: Release
build date: 2019-02-21, 15:38:00

Bug occurs on today's build, too. version: 2.80 (sub 45), branch: master, commit date: 2019-02-21 14:33, hash: 8986c92b651d, type: Release build date: 2019-02-21, 15:38:00

Sebastian Parborg commented

2019-02-22 12:29:44 +01:00

Added subscriber: @ZedDB

Sebastian Parborg commented

2019-02-22 12:29:44 +01:00

Backtrace:

Thread 1 "blender" received signal SIGSEGV, Segmentation fault.
0x000055555669db93 in bmiter__loop_of_face_begin (iter=iter@entry=0x7fffffffcb50)
    at /home/zed/programmering/blender_master/blender/source/blender/bmesh/intern/bmesh_iterators.c:702
702		iter->l_first = iter->l_next = BM_FACE_FIRST_LOOP(iter->pdata);
(gdb) bt
#0  0x000055555669db93 in bmiter__loop_of_face_begin (iter=iter@entry=0x7fffffffcb50)
    at /home/zed/programmering/blender_master/blender/source/blender/bmesh/intern/bmesh_iterators.c:702
#1  0x0000555556726a40 in BM_iter_init (data=0x0, itype=11 '\v', bm=0x0, iter=0x7fffffffcb50)
    at /home/zed/programmering/blender_master/blender/source/blender/bmesh/intern/bmesh_iterators_inline.h:154
#2  BM_iter_new (data=0x0, itype=11 '\v', bm=0x0, iter=0x7fffffffcb50)
    at /home/zed/programmering/blender_master/blender/source/blender/bmesh/intern/bmesh_iterators_inline.h:170
#3  mesh_create_edit_vertex_loops (rdata=rdata@entry=0x7fffcfa67f08, vbo_pos_nor=<optimized out>, vbo_lnor=<optimized out>, vbo_uv=vbo_uv@entry=0x0,
    vbo_data=<optimized out>, vbo_verts=<optimized out>, vbo_edges=<optimized out>, vbo_faces=<optimized out>)
    at /home/zed/programmering/blender_master/blender/source/blender/draw/intern/draw_cache_impl_mesh.c:2334
#4  0x000055555672a9fa in DRW_mesh_batch_cache_create_requested (ob=ob@entry=0x7fffe95f6c08, me=<optimized out>, ts=<optimized out>,
    is_paint_mode=<optimized out>, use_hide=<optimized out>)
    at /home/zed/programmering/blender_master/blender/source/blender/draw/intern/draw_cache_impl_mesh.c:4819
#5  0x000055555677f672 in drw_batch_cache_generate_requested (ob=ob@entry=0x7fffe95f6c08)
    at /home/zed/programmering/blender_master/blender/source/blender/draw/intern/draw_cache.c:3737
#6  0x000055555672f159 in drw_engines_cache_populate (ob=0x7fffe95f6c08)
    at /home/zed/programmering/blender_master/blender/source/blender/draw/intern/draw_manager.c:1037
#7  0x00005555567305e3 in DRW_draw_render_loop_ex (depsgraph=0x7fffea011a08, engine_type=<optimized out>, ar=0x7fffcd78e5c8, v3d=0x7fffcf562508,
    viewport=0x7fffcf41bfc8, evil_C=evil_C@entry=0x7fffea058188)
    at /home/zed/programmering/blender_master/blender/source/blender/draw/intern/draw_manager.c:1493
#8  0x0000555556730b64 in DRW_draw_view (C=C@entry=0x7fffea058188)
    at /home/zed/programmering/blender_master/blender/source/blender/draw/intern/draw_manager.c:1419
#9  0x00005555561efff7 in view3d_draw_view (ar=0x7fffcd78e5c8, C=0x7fffea058188)
    at /home/zed/programmering/blender_master/blender/source/blender/editors/space_view3d/view3d_draw.c:1333
#10 view3d_main_region_draw (C=0x7fffea058188, ar=0x7fffcd78e5c8)
    at /home/zed/programmering/blender_master/blender/source/blender/editors/space_view3d/view3d_draw.c:1354
#11 0x0000555556424599 in ED_region_do_draw (C=C@entry=0x7fffea058188, ar=ar@entry=0x7fffcd78e5c8)
    at /home/zed/programmering/blender_master/blender/source/blender/editors/screen/area.c:508
#12 0x000055555610c085 in wm_draw_window_offscreen (stereo=false, win=0x7fffcdabcc88, C=0x7fffea058188)
    at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_draw.c:573
- 13 wm_draw_window (win=0x7fffcdabcc88, C=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_draw.c:705
- 14 wm_draw_update (C=C@entry=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_draw.c:859
- 15 0x000055555610a1c0 in WM_main (C=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm.c:424
- 16 0x00005555560f4d33 in main (argc=1, argv=0x7fffffffdd28) at /home/zed/programmering/blender_master/blender/source/creator/creator.c:505

Backtrace: ``` Thread 1 "blender" received signal SIGSEGV, Segmentation fault. 0x000055555669db93 in bmiter__loop_of_face_begin (iter=iter@entry=0x7fffffffcb50) at /home/zed/programmering/blender_master/blender/source/blender/bmesh/intern/bmesh_iterators.c:702 702 iter->l_first = iter->l_next = BM_FACE_FIRST_LOOP(iter->pdata); (gdb) bt #0 0x000055555669db93 in bmiter__loop_of_face_begin (iter=iter@entry=0x7fffffffcb50) at /home/zed/programmering/blender_master/blender/source/blender/bmesh/intern/bmesh_iterators.c:702 #1 0x0000555556726a40 in BM_iter_init (data=0x0, itype=11 '\v', bm=0x0, iter=0x7fffffffcb50) at /home/zed/programmering/blender_master/blender/source/blender/bmesh/intern/bmesh_iterators_inline.h:154 #2 BM_iter_new (data=0x0, itype=11 '\v', bm=0x0, iter=0x7fffffffcb50) at /home/zed/programmering/blender_master/blender/source/blender/bmesh/intern/bmesh_iterators_inline.h:170 #3 mesh_create_edit_vertex_loops (rdata=rdata@entry=0x7fffcfa67f08, vbo_pos_nor=<optimized out>, vbo_lnor=<optimized out>, vbo_uv=vbo_uv@entry=0x0, vbo_data=<optimized out>, vbo_verts=<optimized out>, vbo_edges=<optimized out>, vbo_faces=<optimized out>) at /home/zed/programmering/blender_master/blender/source/blender/draw/intern/draw_cache_impl_mesh.c:2334 #4 0x000055555672a9fa in DRW_mesh_batch_cache_create_requested (ob=ob@entry=0x7fffe95f6c08, me=<optimized out>, ts=<optimized out>, is_paint_mode=<optimized out>, use_hide=<optimized out>) at /home/zed/programmering/blender_master/blender/source/blender/draw/intern/draw_cache_impl_mesh.c:4819 #5 0x000055555677f672 in drw_batch_cache_generate_requested (ob=ob@entry=0x7fffe95f6c08) at /home/zed/programmering/blender_master/blender/source/blender/draw/intern/draw_cache.c:3737 #6 0x000055555672f159 in drw_engines_cache_populate (ob=0x7fffe95f6c08) at /home/zed/programmering/blender_master/blender/source/blender/draw/intern/draw_manager.c:1037 #7 0x00005555567305e3 in DRW_draw_render_loop_ex (depsgraph=0x7fffea011a08, engine_type=<optimized out>, ar=0x7fffcd78e5c8, v3d=0x7fffcf562508, viewport=0x7fffcf41bfc8, evil_C=evil_C@entry=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/draw/intern/draw_manager.c:1493 #8 0x0000555556730b64 in DRW_draw_view (C=C@entry=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/draw/intern/draw_manager.c:1419 #9 0x00005555561efff7 in view3d_draw_view (ar=0x7fffcd78e5c8, C=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/editors/space_view3d/view3d_draw.c:1333 #10 view3d_main_region_draw (C=0x7fffea058188, ar=0x7fffcd78e5c8) at /home/zed/programmering/blender_master/blender/source/blender/editors/space_view3d/view3d_draw.c:1354 #11 0x0000555556424599 in ED_region_do_draw (C=C@entry=0x7fffea058188, ar=ar@entry=0x7fffcd78e5c8) at /home/zed/programmering/blender_master/blender/source/blender/editors/screen/area.c:508 #12 0x000055555610c085 in wm_draw_window_offscreen (stereo=false, win=0x7fffcdabcc88, C=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_draw.c:573 - 13 wm_draw_window (win=0x7fffcdabcc88, C=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_draw.c:705 - 14 wm_draw_update (C=C@entry=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_draw.c:859 - 15 0x000055555610a1c0 in WM_main (C=0x7fffea058188) at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm.c:424 - 16 0x00005555560f4d33 in main (argc=1, argv=0x7fffffffdd28) at /home/zed/programmering/blender_master/blender/source/creator/creator.c:505 ```

Bastien Montagne was assigned by Sebastian Parborg

2019-02-22 12:31:24 +01:00

Bastien Montagne removed their assignment 2019-03-05 13:51:18 +01:00

Clément Foucault was assigned by Bastien Montagne

2019-03-05 13:51:18 +01:00

Bastien Montagne commented

2019-03-05 13:51:18 +01:00

Added subscribers: @fclem, @mont29

Bastien Montagne commented

2019-03-05 13:51:18 +01:00

Not sure this is for me, crash happens in draw code (mesh_create_edit_vertex_loops()), when trying to iter over the loops of a BMFace pointer that is NULL. Don’t really know the logic of that code, so cannot judge where is the error (isefa supposed to never be NULL here?), so will let @fclem check on that first.

Not sure this is for me, crash happens in draw code (`mesh_create_edit_vertex_loops()`), when trying to iter over the loops of a BMFace pointer that is NULL. Don’t really know the logic of that code, so cannot judge where is the error (is`efa` supposed to never be NULL here?), so will let @fclem check on that first.

Clément Foucault was unassigned by Jeroen Bakker

2019-03-22 14:30:31 +01:00

Jeroen Bakker self-assigned this 2019-03-22 14:30:31 +01:00

blender-admin commented

2019-03-22 15:18:07 +01:00

This issue was referenced by fcff2a5751

This issue was referenced by fcff2a57518ffaf509be7a3bdb57e7e9ff8f85b5

Jeroen Bakker commented

2019-03-22 15:24:50 +01:00

Changed status from 'Open' to: 'Resolved'

Jeroen Bakker closed this issue

2019-03-22 15:24:50 +01:00

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Array Modifer crashes Blender when Merge, Adjust Edit Cage, Start/End Cap, and Edit Mode are enabled #61816