Blender crashes (seg fault) selecting a view mode for "Preview" in Sequence Editor #38002

New Issue

Paulo José Oliveira Amaro · 2013-12-31T02:26:21+01:00

2013-12-31 02:26:21 +01:00

System Information
Ubuntu 13.10 32-bit
Intel Ironlake Mobile x86/MMX/SSE

Blender Version
Broken: 2.69.7 e1b322b

Short description of error
Blender crashes in a segmentation fault after selecting the view mode for a "Preview" window created by splitting an existing Preview window.

Exact steps for others to reproduce the error
From Blender's startup file:

Choose the Video Editing Scene Layout.
Add an image or movie to the Sequencer timeline, make sure it shows on the preview window.
Change the Dope Sheet view window to a Video Sequencer Editor view.
Select "preview" type and then select one of the analysis display modes, i.e waveform.
Split this window and try to change the display to an different analysis display, like histogram or vectorsope.
Blender will crash. If it don't crash instantly, try to change the analysis display again or split the window one more time.

Note: If you don't select an analysis mode before splitting the window, you can create 20 vectorscopes and histograms windows and Blender will not crash.

Crash log:

Blender 2.69 (sub 7), Commit date: 2013-12-24 12:21, Hash `e1b322b`

bpy.context.space_data.display_mode = 'VECTOR_SCOPE'  # Property
bpy.context.space_data.display_mode = 'HISTOGRAM'  # Property

backtrace

/usr/lib/blender/blender() [0x8749fde]
[0xb76f3400]
/usr/lib/blender/blender(colormanage_cache_free+0x3f) [0x8ea3def]
/usr/lib/blender/blender(IMB_freeImBuf+0x77) [0x8ea01d7]
/usr/lib/blender/blender(draw_image_seq+0x5ba) [0x87fca9a]
/usr/lib/blender/blender() [0x87f6848]
/usr/lib/blender/blender(ED_region_do_draw+0xa23) [0x89f6873]
/usr/lib/blender/blender(wm_draw_update+0x621) [0x874fac1]
/usr/lib/blender/blender(WM_main+0x38) [0x874c738]
/usr/lib/blender/blender(main+0x1189) [0x8707809]
/lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0xb4e69905]
/usr/lib/blender/blender() [0x8749856]

Debug info:

paulo@paulo-Aspire-5742:~$ blender -d
Switching to fully guarded memory allocator.
Blender 2.69 (sub 7)
Build: 2013-12-24 15:31:35 Linux RelWithDebInfo
argv[0] = /usr/lib/blender/blender
argv[1] = -P
argv[2] = /usr/lib/blender/reset_excepthook.py
argv[3] = -d

connect failed: No such file or directory

Note: No (valid) '/home/paulo/.config/blender/2.69/config/startup.blend' found, fall back to built-in default.

read file 
  Version 267 sub 1 date 1970-01-01 00:00 hash 

ordered
 OBCube
 OBLamp
 OBCamera
read file /home/paulo/.config/blender/2.69/config/userpref.blend
  Version 269 sub 7 date 2013-12-17 09:47 hash db795b6
Read new prefs: /home/paulo/.config/blender/2.69/config/userpref.blend
read file 
  Version 262 sub 3 date 1970-01-01 00:00 hash 
read file 
  Version 268 sub 5 date 1970-01-01 00:00 hash 
recalcob Cube
recalcdata Cube
ED_undo_push:    Video Editing
ED_undo_push: Add Image Strip
areas don't share edge
Memoryblock free: attempt to free illegal pointer
Writing: /docs/Blender/Blender Autosave/blender.crash.txt
Segmentation fault

I can't provide an blend file because Blender can't pack the image added in Sequencer's timeline into the blend file. I'm not sure it should be taken as a bug or an spec.

**System Information** Ubuntu 13.10 32-bit Intel Ironlake Mobile x86/MMX/SSE **Blender Version** Broken: 2.69.7 e1b322b **Short description of error** Blender crashes in a segmentation fault after selecting the view mode for a "Preview" window created by splitting an existing Preview window. **Exact steps for others to reproduce the error** From Blender's startup file: 1. Choose the Video Editing Scene Layout. 2. Add an image or movie to the Sequencer timeline, make sure it shows on the preview window. 3. Change the Dope Sheet view window to a Video Sequencer Editor view. 4. Select "preview" type and then select one of the analysis display modes, i.e waveform. 5. Split this window and try to change the display to an different analysis display, like histogram or vectorsope. 6. Blender will crash. If it don't crash instantly, try to change the analysis display again or split the window one more time. Note: If you don't select an analysis mode **before** splitting the window, you can create 20 vectorscopes and histograms windows and Blender will not crash. ![Screenshot_from_2013-12-30_23:12:02.jpg](https://archive.blender.org/developer/F59356/Screenshot_from_2013-12-30_23_12_02.jpg) **Crash log:** ``` ``` # Blender 2.69 (sub 7), Commit date: 2013-12-24 12:21, Hash e1b322b ``` bpy.context.space_data.display_mode = 'VECTOR_SCOPE' # Property bpy.context.space_data.display_mode = 'HISTOGRAM' # Property ``` # backtrace ``` /usr/lib/blender/blender() [0x8749fde] [0xb76f3400] /usr/lib/blender/blender(colormanage_cache_free+0x3f) [0x8ea3def] /usr/lib/blender/blender(IMB_freeImBuf+0x77) [0x8ea01d7] /usr/lib/blender/blender(draw_image_seq+0x5ba) [0x87fca9a] /usr/lib/blender/blender() [0x87f6848] /usr/lib/blender/blender(ED_region_do_draw+0xa23) [0x89f6873] /usr/lib/blender/blender(wm_draw_update+0x621) [0x874fac1] /usr/lib/blender/blender(WM_main+0x38) [0x874c738] /usr/lib/blender/blender(main+0x1189) [0x8707809] /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0xb4e69905] /usr/lib/blender/blender() [0x8749856] ``` **Debug info**: ``` paulo@paulo-Aspire-5742:~$ blender -d Switching to fully guarded memory allocator. Blender 2.69 (sub 7) Build: 2013-12-24 15:31:35 Linux RelWithDebInfo argv[0] = /usr/lib/blender/blender argv[1] = -P argv[2] = /usr/lib/blender/reset_excepthook.py argv[3] = -d connect failed: No such file or directory Note: No (valid) '/home/paulo/.config/blender/2.69/config/startup.blend' found, fall back to built-in default. read file Version 267 sub 1 date 1970-01-01 00:00 hash ordered OBCube OBLamp OBCamera read file /home/paulo/.config/blender/2.69/config/userpref.blend Version 269 sub 7 date 2013-12-17 09:47 hash db795b6 Read new prefs: /home/paulo/.config/blender/2.69/config/userpref.blend read file Version 262 sub 3 date 1970-01-01 00:00 hash read file Version 268 sub 5 date 1970-01-01 00:00 hash recalcob Cube recalcdata Cube ED_undo_push: Video Editing ED_undo_push: Add Image Strip areas don't share edge Memoryblock free: attempt to free illegal pointer Writing: /docs/Blender/Blender Autosave/blender.crash.txt Segmentation fault ``` I can't provide an blend file because Blender can't pack the image added in Sequencer's timeline into the blend file. I'm not sure it should be taken as a bug or an spec.

Paulo José Oliveira Amaro commented

2013-12-31 02:26:21 +01:00

Changed status to: 'Open'