Crash when switching brushes #54975

New Issue

soulfire · 2018-05-06T20:21:52+02:00

soulfire commented

2018-05-06 20:21:52 +02:00

System Information
Win 10, AMD 7870 2GB, Core I5, 8GB RAM
Blender Version
tested official 2.79 and 2.79 daily build 4th May

When sculpting and switching between brushes, Blender instantly crashes

I have a sculpt of 30 000 verts. When I sculpt with clay brush, switch to snake hook and back and forth to crease brush, Blender instantly crashes.

I have made sure that I'm having consistent normals and without inner/double faces on the mesh.
Crash happens randomly and every time I do the change on the sculpt and when I switch brush and make another change.

ch.blend
sculpt crash.txt

**System Information** Win 10, AMD 7870 2GB, Core I5, 8GB RAM **Blender Version** tested official 2.79 and 2.79 daily build 4th May **When sculpting and switching between brushes, Blender instantly crashes** I have a sculpt of 30 000 verts. When I sculpt with clay brush, switch to snake hook and back and forth to crease brush, Blender instantly crashes. I have made sure that I'm having consistent normals and without inner/double faces on the mesh. Crash happens randomly and every time I do the change on the sculpt and when I switch brush and make another change. [ch.blend](https://archive.blender.org/developer/F3296751/ch.blend) [sculpt crash.txt](https://archive.blender.org/developer/F3296806/sculpt_crash.txt)

soulfire commented

2018-05-06 20:21:52 +02:00

Added subscriber: @TomG

Philipp Oeser commented

2018-05-07 10:47:53 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2018-05-07 10:47:53 +02:00

Cannot reproduce here.

Could you share your .blend file?
Launch Blender from the command line with -d option and attach as text file here any error printed out in the console (do not paste it directly in comment).

Marking as incomplete for now...

Cannot reproduce here. - Could you share your .blend file? - Launch Blender from the command line with -d option and attach as text file here any error printed out in the console (do not paste it directly in comment). Marking as incomplete for now...

soulfire commented

2018-05-07 13:56:43 +02:00

@lichtwerk I have updated with crash log and blend file.

Philipp Oeser commented

2018-05-07 14:12:17 +02:00

Cant get it to crash in official releases, but can confirm the crash in current master

1  BLI_ghash_free                  BLI_ghash.c       1014 0x29e2316 
2  bm_log_entry_free               bmesh_log.c       411  0x21cf408 
3  BM_log_entry_drop               bmesh_log.c       699  0x21d3338 
4  sculpt_undo_free_list           sculpt_undo.c     619  0x1e438e3 
5  sculpt_undosys_step_free        sculpt_undo.c     1052 0x1e46074 
6  undosys_step_free_and_unlink    undo_system.c     182  0x276e7e3 
7  BKE_undosys_step_push_with_type undo_system.c     398  0x276f577 
8  BKE_undosys_step_push           undo_system.c     448  0x276f890 
9  sculpt_undo_push_end            sculpt_undo.c     998  0x1e45edc 
10 sculpt_stroke_done              sculpt.c          5038 0x1e3f3c6 
11 stroke_done                     paint_stroke.c    754  0x1e0c526 
12 paint_stroke_modal              paint_stroke.c    1176 0x1e0d84f

If only related to current master it could be the same issue as #54947 (undosystem was refactored there)?

@TomG : are you sure you are getting this in official releases as well? Does it also crash just switching brushes and sculpting without using UNDO?

Cant get it to crash in official releases, but can confirm the crash in current master ``` 1 BLI_ghash_free BLI_ghash.c 1014 0x29e2316 2 bm_log_entry_free bmesh_log.c 411 0x21cf408 3 BM_log_entry_drop bmesh_log.c 699 0x21d3338 4 sculpt_undo_free_list sculpt_undo.c 619 0x1e438e3 5 sculpt_undosys_step_free sculpt_undo.c 1052 0x1e46074 6 undosys_step_free_and_unlink undo_system.c 182 0x276e7e3 7 BKE_undosys_step_push_with_type undo_system.c 398 0x276f577 8 BKE_undosys_step_push undo_system.c 448 0x276f890 9 sculpt_undo_push_end sculpt_undo.c 998 0x1e45edc 10 sculpt_stroke_done sculpt.c 5038 0x1e3f3c6 11 stroke_done paint_stroke.c 754 0x1e0c526 12 paint_stroke_modal paint_stroke.c 1176 0x1e0d84f ``` If only related to current master it could be the same issue as #54947 (undosystem was refactored there)? @TomG : are you sure you are getting this in official releases as well? Does it also crash just switching brushes and sculpting **without using UNDO**?

soulfire commented

2018-05-07 14:25:58 +02:00

are you sure you are getting this in official releases as well?

Yes, it's in official release only not that frequent. It's more stable but I had crash when sculpting for longer time.

Does it also crash just switching brushes and sculpting without using UNDO?

Yes it does.

> are you sure you are getting this in official releases as well? Yes, it's in official release only not that frequent. It's more stable but I had crash when sculpting for longer time. > Does it also crash just switching brushes and sculpting **without using UNDO**? Yes it does.

Philipp Oeser commented

2018-05-13 13:42:57 +02:00

Still cannot reproduce when just switching brushes.
Like I said, there are issues with UNDO, see #55033, #55051 (and possibly #54947), but everything fine here if I stay away from UNDO...

Still cannot reproduce **when just switching brushes**. Like I said, there are issues with UNDO, see #55033, #55051 (and possibly #54947), but everything fine here if I stay away from UNDO...

soulfire commented

2018-05-13 17:51:53 +02:00

This comment was removed by @TomG

*This comment was removed by @TomG*

soulfire commented

2018-06-08 14:11:57 +02:00

@lichtwerk thank you! It's fixed.