[CRASH] Modifying Normals with Skin Modifier #66030

New Issue

Telmo Silva · 2019-06-23T01:07:32+02:00

Telmo Silva commented

2019-06-23 01:07:32 +02:00

System Information
Operating system: Linux-5.1.11-300.fc30.x86_64-x86_64-with-fedora-30-Thirty 64 Bits
Graphics card: Mesa DRI Intel(R) HD Graphics 620 (Kaby Lake GT2) Intel Open Source Technology Center 4.5 (Core Profile) Mesa 19.0.6

Blender Version
Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-06-21 21:37, hash: 953419c641
Worked: (optional)

Short description of error
Some Normal Options on Vertices, using a Skin Modifier, crash Blender.

Exact steps for others to reproduce the error

Merge Vertices at center from Default Cube
Add Skin Modifier
Select Vertice
[ALT+N] Normal Context Menu
Options Crashing
- Rotate
- Point to Target
- Merge
- Copy Vectors
- Paste Vectors
- Smoothen Vectors
- Reset Vectors

**System Information** Operating system: Linux-5.1.11-300.fc30.x86_64-x86_64-with-fedora-30-Thirty 64 Bits Graphics card: Mesa DRI Intel(R) HD Graphics 620 (Kaby Lake GT2) Intel Open Source Technology Center 4.5 (Core Profile) Mesa 19.0.6 **Blender Version** Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-06-21 21:37, hash: `953419c641` Worked: (optional) **Short description of error** Some Normal Options on Vertices, using a Skin Modifier, crash Blender. **Exact steps for others to reproduce the error** 1. Merge Vertices at center from Default Cube 2. Add Skin Modifier 3. Select Vertice 4. [ALT+N] Normal Context Menu 5. Options Crashing - Rotate - Point to Target - Merge - Copy Vectors - Paste Vectors - Smoothen Vectors - Reset Vectors

Telmo Silva commented

2019-06-23 01:07:33 +02:00

Added subscriber: @nottelmo-4

Marcin Twarowski commented

2019-06-24 11:34:23 +02:00

Added subscriber: @MarcinTwarowski

Marcin Twarowski commented

2019-06-24 11:34:23 +02:00

I can confirm. Here's a test file: skin_modifier_crash.blend

I can confirm. Here's a test file: [skin_modifier_crash.blend](https://archive.blender.org/developer/F7544254/skin_modifier_crash.blend)

Sebastian Parborg commented

2019-06-24 12:07:01 +02:00

Added subscriber: @ZedDB

Bastien Montagne was assigned by Sebastian Parborg

2019-06-24 12:07:01 +02:00

Sebastian Parborg commented

2019-06-24 12:07:02 +02:00

Backtrace:

Thread 1 "blender" received signal SIGSEGV, Segmentation fault.
MEM_lockfree_allocN_len (vmemh=0x616d7869702f6572) at /home/zed/prog/blender/intern/guardedalloc/intern/mallocn_lockfree_impl.c:113
113	    return MEMHEAD_FROM_PTR(vmemh)->len & ~((size_t)(MEMHEAD_MMAP_FLAG | MEMHEAD_ALIGN_FLAG));
(gdb) bt
- 0  MEM_lockfree_allocN_len (vmemh=0x616d7869702f6572) at /home/zed/prog/blender/intern/guardedalloc/intern/mallocn_lockfree_impl.c:113
- 1  0x0000555557fb827b in MEM_lockfree_freeN (vmemh=0x616d7869702f6572) at /home/zed/prog/blender/intern/guardedalloc/intern/mallocn_lockfree_impl.c:123
#2  0x00005555584c6fbe in BM_loop_normal_editdata_array_free (lnors_ed_arr=0x7fffcdfa0de8)
    at /home/zed/prog/blender/source/blender/bmesh/intern/bmesh_mesh.c:1624
#3  0x0000555558c46d6e in freeCustomNormalArray (t=0x7fffcfe65e08, tc=0x7fffe6644308, custom_data=0x7fffe6644448)
    at /home/zed/prog/blender/source/blender/editors/transform/transform.c:4810
#4  0x0000555558c9b950 in freeTransCustomData (t=0x7fffcfe65e08, tc=0x7fffe6644308, custom_data=0x7fffe6644448)
    at /home/zed/prog/blender/source/blender/editors/transform/transform_generics.c:1811
#5  0x0000555558c9ba44 in freeTransCustomDataContainer (t=0x7fffcfe65e08, tc=0x7fffe6644308, tcdc=0x7fffe6644448)
    at /home/zed/prog/blender/source/blender/editors/transform/transform_generics.c:1829
- 6  0x0000555558c9bc52 in postTrans (C=0x7fffeb891208, t=0x7fffcfe65e08) at /home/zed/prog/blender/source/blender/editors/transform/transform_generics.c:1867
- 7  0x0000555558c4093b in transformEnd (C=0x7fffeb891208, t=0x7fffcfe65e08) at /home/zed/prog/blender/source/blender/editors/transform/transform.c:2814
#8  0x0000555558cac8a3 in transform_modal (C=0x7fffeb891208, op=0x7fffcdd46108, event=0x7fffd0d71d88)
    at /home/zed/prog/blender/source/blender/editors/transform/transform_ops.c:429
#9  0x0000555558228696 in wm_handler_operator_call (C=0x7fffeb891208, handlers=0x7fffcfc8ff98, handler_base=0x7fffd32196a8, event=0x7fffd0d71d88,
    properties=0x0) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:2188
#10 0x000055555822a74e in wm_handlers_do_intern (C=0x7fffeb891208, event=0x7fffd0d71d88, handlers=0x7fffcfc8ff98)
    at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:2899
#11 0x000055555822a8e0 in wm_handlers_do (C=0x7fffeb891208, event=0x7fffd0d71d88, handlers=0x7fffcfc8ff98)
    at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:2947
- 12 0x000055555822ba80 in wm_event_do_handlers (C=0x7fffeb891208) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:3309
- 13 0x000055555821eef4 in WM_main (C=0x7fffeb891208) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm.c:417
#14 0x0000555557b79989 in main (argc=1, argv=0x7fffffffdff8) at /home/zed/prog/blender/source/creator/creator.c:500

Backtrace: ``` Thread 1 "blender" received signal SIGSEGV, Segmentation fault. MEM_lockfree_allocN_len (vmemh=0x616d7869702f6572) at /home/zed/prog/blender/intern/guardedalloc/intern/mallocn_lockfree_impl.c:113 113 return MEMHEAD_FROM_PTR(vmemh)->len & ~((size_t)(MEMHEAD_MMAP_FLAG | MEMHEAD_ALIGN_FLAG)); (gdb) bt - 0 MEM_lockfree_allocN_len (vmemh=0x616d7869702f6572) at /home/zed/prog/blender/intern/guardedalloc/intern/mallocn_lockfree_impl.c:113 - 1 0x0000555557fb827b in MEM_lockfree_freeN (vmemh=0x616d7869702f6572) at /home/zed/prog/blender/intern/guardedalloc/intern/mallocn_lockfree_impl.c:123 #2 0x00005555584c6fbe in BM_loop_normal_editdata_array_free (lnors_ed_arr=0x7fffcdfa0de8) at /home/zed/prog/blender/source/blender/bmesh/intern/bmesh_mesh.c:1624 #3 0x0000555558c46d6e in freeCustomNormalArray (t=0x7fffcfe65e08, tc=0x7fffe6644308, custom_data=0x7fffe6644448) at /home/zed/prog/blender/source/blender/editors/transform/transform.c:4810 #4 0x0000555558c9b950 in freeTransCustomData (t=0x7fffcfe65e08, tc=0x7fffe6644308, custom_data=0x7fffe6644448) at /home/zed/prog/blender/source/blender/editors/transform/transform_generics.c:1811 #5 0x0000555558c9ba44 in freeTransCustomDataContainer (t=0x7fffcfe65e08, tc=0x7fffe6644308, tcdc=0x7fffe6644448) at /home/zed/prog/blender/source/blender/editors/transform/transform_generics.c:1829 - 6 0x0000555558c9bc52 in postTrans (C=0x7fffeb891208, t=0x7fffcfe65e08) at /home/zed/prog/blender/source/blender/editors/transform/transform_generics.c:1867 - 7 0x0000555558c4093b in transformEnd (C=0x7fffeb891208, t=0x7fffcfe65e08) at /home/zed/prog/blender/source/blender/editors/transform/transform.c:2814 #8 0x0000555558cac8a3 in transform_modal (C=0x7fffeb891208, op=0x7fffcdd46108, event=0x7fffd0d71d88) at /home/zed/prog/blender/source/blender/editors/transform/transform_ops.c:429 #9 0x0000555558228696 in wm_handler_operator_call (C=0x7fffeb891208, handlers=0x7fffcfc8ff98, handler_base=0x7fffd32196a8, event=0x7fffd0d71d88, properties=0x0) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:2188 #10 0x000055555822a74e in wm_handlers_do_intern (C=0x7fffeb891208, event=0x7fffd0d71d88, handlers=0x7fffcfc8ff98) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:2899 #11 0x000055555822a8e0 in wm_handlers_do (C=0x7fffeb891208, event=0x7fffd0d71d88, handlers=0x7fffcfc8ff98) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:2947 - 12 0x000055555822ba80 in wm_event_do_handlers (C=0x7fffeb891208) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm_event_system.c:3309 - 13 0x000055555821eef4 in WM_main (C=0x7fffeb891208) at /home/zed/prog/blender/source/blender/windowmanager/intern/wm.c:417 #14 0x0000555557b79989 in main (argc=1, argv=0x7fffffffdff8) at /home/zed/prog/blender/source/creator/creator.c:500 ```

Bastien Montagne commented

2019-06-24 15:40:03 +02:00

This has nothing to do with the modifier, issue is editing normals of a no-face mesh (which is a non-sense to start with, btw…). Will check.

blender-admin commented

2019-06-24 16:29:37 +02:00

This issue was referenced by 187c696cae

This issue was referenced by 187c696caee13aaa27ecd03a9c17a0d2af28a938

Bastien Montagne commented

2019-06-24 16:33:58 +02:00

Changed status from 'Open' to: 'Resolved'

Bastien Montagne closed this issue

2019-06-24 16:33:58 +02:00

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[CRASH] Modifying Normals with Skin Modifier #66030