Crash on redo/undo #79049

New Issue

Marshall Dale Tavares · 2020-07-18T11:26:31+02:00

2020-07-18 11:26:31 +02:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 451.48

Blender Version
Broken: version: 2.90.0 Alpha, branch: master, commit date: 2020-07-17 19:20, hash: aa8279648e
2.83.2

Worked: (optional)
2.79b, for what it's worth

Short description of error
Seemingly/semi random crash on undo/redo. Has nothing to do with RAM usage.

Exact steps for others to reproduce the error
New file,
select the starting cube,
tab to edit mode
select and move any vertex
tab twice to go to object mode then back into edit mode
move any vertex
tab back to object mode

ctrl z back to the starting state of the file, then ctrl shift z back to the final step. Repeat this step maybe two or three times, and blender closes, no error message.
It's quite reliable.

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 451.48 **Blender Version** Broken: version: 2.90.0 Alpha, branch: master, commit date: 2020-07-17 19:20, hash: `aa8279648e` 2.83.2 Worked: (optional) 2.79b, for what it's worth **Short description of error** Seemingly/semi random crash on undo/redo. Has nothing to do with RAM usage. **Exact steps for others to reproduce the error** New file, select the starting cube, tab to edit mode select and move any vertex tab twice to go to object mode then back into edit mode move any vertex tab back to object mode ctrl z back to the starting state of the file, then ctrl shift z back to the final step. Repeat this step maybe two or three times, and blender closes, no error message. It's quite reliable.

Marshall Dale Tavares commented

2020-07-18 11:26:31 +02:00

Added subscriber: @Phos

Robert Guetzkow commented

2020-07-18 11:56:35 +02:00

Added subscriber: @rjg

Robert Guetzkow commented

2020-07-18 11:56:35 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Robert Guetzkow commented

2020-07-18 11:56:35 +02:00

The crash occurs when accessing but->poin in ui_but_value_get. Since this appears to be caused by improper undo/redo handling I've tagged this as Data, Assets and I/O.

ui_but_value_get(uiBut * but) Line 2374	C
ui_but_is_pushed_ex(uiBut * but, double * value) Line 2000	C
ui_but_update_select_flag(uiBut * but, double * value) Line 2084	C
ui_but_update_ex(uiBut * but, const bool validate) Line 3481	C
ui_but_update(uiBut * but) Line 3649	C
ui_but_update_and_icon_set(uiBut * but, int icon) Line 4601	C
uiDefIconBut(uiBlock * block, int type, int retval, int icon, int x, int y, short width, short height, void * poin, float min, float max, float a1, float a2, const unsigned char * tip) Line 4986	C
uiDefIconButBit(uiBlock * block, int type, int bit, int retval, int icon, int x, int y, short width, short height, void * poin, float min, float max, float a1, float a2, const unsigned char * tip) Line 5022	C
uiDefIconButBitS(uiBlock * block, int type, int bit, int retval, int icon, int x, int y, short width, short height, short * poin, float min, float max, float a1, float a2, const unsigned char * tip) Line 5209	C
uiTemplateEditModeSelection(uiLayout * layout, bContext * C) Line 146	C
uiTemplateHeader3D_mode(uiLayout * layout, bContext * C) Line 238	C
UILayout_template_header_3D_mode_call(bContext * C, ReportList * reports, PointerRNA * _ptr, ParameterList * _parms) Line 3424	C
RNA_function_call(bContext * C, ReportList * reports, PointerRNA * ptr, FunctionRNA * func, ParameterList * parms) Line 7573	C
pyrna_func_call(BPy_FunctionRNA * self, _object * args, _object * kw) Line 6328	C

The crash occurs when accessing `but->poin` in `ui_but_value_get`. Since this appears to be caused by improper undo/redo handling I've tagged this as Data, Assets and I/O. ``` ui_but_value_get(uiBut * but) Line 2374 C ui_but_is_pushed_ex(uiBut * but, double * value) Line 2000 C ui_but_update_select_flag(uiBut * but, double * value) Line 2084 C ui_but_update_ex(uiBut * but, const bool validate) Line 3481 C ui_but_update(uiBut * but) Line 3649 C ui_but_update_and_icon_set(uiBut * but, int icon) Line 4601 C uiDefIconBut(uiBlock * block, int type, int retval, int icon, int x, int y, short width, short height, void * poin, float min, float max, float a1, float a2, const unsigned char * tip) Line 4986 C uiDefIconButBit(uiBlock * block, int type, int bit, int retval, int icon, int x, int y, short width, short height, void * poin, float min, float max, float a1, float a2, const unsigned char * tip) Line 5022 C uiDefIconButBitS(uiBlock * block, int type, int bit, int retval, int icon, int x, int y, short width, short height, short * poin, float min, float max, float a1, float a2, const unsigned char * tip) Line 5209 C uiTemplateEditModeSelection(uiLayout * layout, bContext * C) Line 146 C uiTemplateHeader3D_mode(uiLayout * layout, bContext * C) Line 238 C UILayout_template_header_3D_mode_call(bContext * C, ReportList * reports, PointerRNA * _ptr, ParameterList * _parms) Line 3424 C RNA_function_call(bContext * C, ReportList * reports, PointerRNA * ptr, FunctionRNA * func, ParameterList * parms) Line 7573 C pyrna_func_call(BPy_FunctionRNA * self, _object * args, _object * kw) Line 6328 C ```

Marshall Dale Tavares commented

2020-07-19 05:47:25 +02:00

Wanted to zero in on which versions this applies to (more specific than a build from two years ago at the very least), I can't reproduce the problem on 2.82a but can on 2.83.0

Kevin Buhr commented

2020-07-19 08:37:51 +02:00

Added subscriber: @buhr

Kevin Buhr commented

2020-07-19 08:37:51 +02:00

Note this is a likely duplicate of #78392.

Robert Guetzkow commented

2020-07-19 11:10:20 +02:00

Closed as duplicate of #78392

Robert Guetzkow closed this issue

2020-07-19 11:10:20 +02:00

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Crash on redo/undo #79049