Crash displaying toolbar tooltips #57114

New Issue

Shane Ambler · 2018-10-09T04:23:29+02:00

Shane Ambler commented

2018-10-09 04:23:29 +02:00

System Information
FreeBSD 11.2 64bit - nvidia GT730

Blender Version
Broken: Blender2.8 - 9/10/18 - e7218e7049
System compiler is clang 6.0.1

Short description of error
Blender crashes when displaying tooltips for toolbar items, other tooltips are OK

(lldb) run --factory-startup
Process 32040 launching
Process 32040 launched: '/home/shane/Projects/blender-bits/blender-280/umfbuild/bin/blender' (x86_64)
Process 32040 stopped
* thread #1, name = 'blender', stop reason = signal SIGSEGV: invalid address (fault address: 0x8)
    frame #0: 0x00000008036b25b3 libpython3.7m.so.1.0`PyDict_GetItem + 19
libpython3.7m.so.1.0`PyDict_GetItem:
->  0x8036b25b3 <+19>: movq   0x8(%rbx), %rax
    0x8036b25b7 <+23>: testb  $0x20, 0xab(%rax)
    0x8036b25be <+30>: je     0x8036b266f               ; <+207>
    0x8036b25c4 <+36>: movq   0x8(%r14), %rax
(lldb) bt
* thread #1, name = 'blender', stop reason = signal SIGSEGV: invalid address (fault address: 0x8)
  * frame #0: 0x00000008036b25b3 libpython3.7m.so.1.0`PyDict_GetItem + 19
    frame #1: 0x00000008036b6845 libpython3.7m.so.1.0`PyDict_GetItemString + 37
    frame #2: 0x0000000000e175c6 blender`PyC_RunString_AsString [inlined] PyC_MainModule_Backup at py_capi_utils.c:742
    frame #3: 0x0000000000e175ad blender`PyC_RunString_AsString(imports=0x00007fffffffdd40, expr="bl_ui.space_toolsystem_common.description_from_name(bpy.context, bpy.context.space_data.type, 'Transform') + '.'", filename="<expr as str>", r_value=0x00007fffffffdd00) at py_capi_utils.c:1204
    frame #4: 0x0000000000de0f8c blender`BPY_execute_string_as_string(C=0x000000082e415708, imports=0x00007fffffffdd40, expr="bl_ui.space_toolsystem_common.description_from_name(bpy.context, bpy.context.space_data.type, 'Transform') + '.'", verbose=true, r_value=0x00007fffffffdd00) at bpy_interface.c:644
    frame #5: 0x0000000000c1c341 blender`UI_tooltip_create_from_button at interface_region_tooltip.c:422
    frame #6: 0x0000000000c1c21e blender`UI_tooltip_create_from_button(C=<unavailable>, butregion=0x000000082f882c88, but=<unavailable>, is_label=<unavailable>) at interface_region_tooltip.c:1241
    frame #7: 0x0000000000a56545 blender`WM_tooltip_init(C=0x000000082e415708, win=0x000000082f839688) at wm_tooltip.c:123
    frame #8: 0x0000000000a37212 blender`wm_event_do_handlers(C=<unavailable>) at wm_event_system.c:2986
    frame #9: 0x0000000000a31c90 blender`WM_main(C=0x000000082e415708) at wm.c:412
    frame #10: 0x0000000000a2de03 blender`main(argc=2, argv=0x00007fffffffe370) at creator.c:525
    frame #11: 0x0000000000a2d814 blender`_start + 148

**System Information** FreeBSD 11.2 64bit - nvidia GT730 **Blender Version** Broken: Blender2.8 - 9/10/18 - e7218e704997 System compiler is clang 6.0.1 **Short description of error** Blender crashes when displaying tooltips for toolbar items, other tooltips are OK ``` (lldb) run --factory-startup Process 32040 launching Process 32040 launched: '/home/shane/Projects/blender-bits/blender-280/umfbuild/bin/blender' (x86_64) Process 32040 stopped * thread #1, name = 'blender', stop reason = signal SIGSEGV: invalid address (fault address: 0x8) frame #0: 0x00000008036b25b3 libpython3.7m.so.1.0`PyDict_GetItem + 19 libpython3.7m.so.1.0`PyDict_GetItem: -> 0x8036b25b3 <+19>: movq 0x8(%rbx), %rax 0x8036b25b7 <+23>: testb $0x20, 0xab(%rax) 0x8036b25be <+30>: je 0x8036b266f ; <+207> 0x8036b25c4 <+36>: movq 0x8(%r14), %rax (lldb) bt * thread #1, name = 'blender', stop reason = signal SIGSEGV: invalid address (fault address: 0x8) * frame #0: 0x00000008036b25b3 libpython3.7m.so.1.0`PyDict_GetItem + 19 frame #1: 0x00000008036b6845 libpython3.7m.so.1.0`PyDict_GetItemString + 37 frame #2: 0x0000000000e175c6 blender`PyC_RunString_AsString [inlined] PyC_MainModule_Backup at py_capi_utils.c:742 frame #3: 0x0000000000e175ad blender`PyC_RunString_AsString(imports=0x00007fffffffdd40, expr="bl_ui.space_toolsystem_common.description_from_name(bpy.context, bpy.context.space_data.type, 'Transform') + '.'", filename="<expr as str>", r_value=0x00007fffffffdd00) at py_capi_utils.c:1204 frame #4: 0x0000000000de0f8c blender`BPY_execute_string_as_string(C=0x000000082e415708, imports=0x00007fffffffdd40, expr="bl_ui.space_toolsystem_common.description_from_name(bpy.context, bpy.context.space_data.type, 'Transform') + '.'", verbose=true, r_value=0x00007fffffffdd00) at bpy_interface.c:644 frame #5: 0x0000000000c1c341 blender`UI_tooltip_create_from_button at interface_region_tooltip.c:422 frame #6: 0x0000000000c1c21e blender`UI_tooltip_create_from_button(C=<unavailable>, butregion=0x000000082f882c88, but=<unavailable>, is_label=<unavailable>) at interface_region_tooltip.c:1241 frame #7: 0x0000000000a56545 blender`WM_tooltip_init(C=0x000000082e415708, win=0x000000082f839688) at wm_tooltip.c:123 frame #8: 0x0000000000a37212 blender`wm_event_do_handlers(C=<unavailable>) at wm_event_system.c:2986 frame #9: 0x0000000000a31c90 blender`WM_main(C=0x000000082e415708) at wm.c:412 frame #10: 0x0000000000a2de03 blender`main(argc=2, argv=0x00007fffffffe370) at creator.c:525 frame #11: 0x0000000000a2d814 blender`_start + 148 ```

Shane Ambler commented

2018-10-09 04:23:29 +02:00

Added subscriber: @sambler

Philipp Oeser commented

2018-10-09 09:10:14 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2018-10-09 09:10:14 +02:00

Obviously something wrong, but I cant seem to be able to reproduce...
Do you mean these?:

Have you tried a build from https://builder.blender.org/download?

Obviously something wrong, but I cant seem to be able to reproduce... Do you mean these?: ![#57114.png](https://archive.blender.org/developer/F4997298/T57114.png) Have you tried a build from https://builder.blender.org/download?

Shane Ambler commented

2018-10-10 05:44:15 +02:00

Yes, and only those tooltips fail, so some variation with the toolbar? The first line does show, it fails both with py and dev tips on and off.

There are no official builds available for freebsd. I am linking with python 3.7.0 and also tried 3.7.1rc1

Yes, and only those tooltips fail, so some variation with the toolbar? The first line does show, it fails both with py and dev tips on and off. ![tooltips.jpg](https://archive.blender.org/developer/F5008165/tooltips.jpg) There are no official builds available for freebsd. I am linking with python 3.7.0 and also tried 3.7.1rc1

Campbell Barton was assigned by Philipp Oeser

2018-10-10 10:19:50 +02:00

Philipp Oeser commented

2018-10-10 10:19:50 +02:00

Added subscriber: @ideasman42

Philipp Oeser commented

2018-10-10 10:19:50 +02:00

Sorry about the freebsd builds comment...
Hm, linking 3.7.0 as well.

Apparently getting the tip makes a python detour from C (see here ), but my unexperienced eyes dont see whats going wrong with the built expression there...

@ideasman42 : could you take over?

Sorry about the freebsd builds comment... Hm, linking 3.7.0 as well. Apparently getting the tip makes a python detour from C (see [here ](https://developer.blender.org/diffusion/B/browse/blender2.8/source/blender/editors/interface/interface_region_tooltip.c;84cf670d1d86f69aecbb6307aa49650e958d7845$394)), but my unexperienced eyes dont see whats going wrong with the built expression there... @ideasman42 : could you take over?

Campbell Barton commented

2018-10-18 10:52:39 +02:00

I can't redo this on Linux, from the stack trace it looks like it's failing on the call:

PyDict_GetItemString(interp->modules, "__main__")

With an error converting "__main__" to a Python string.

I would guess something about Python's internal state has become corrupt/invalid, but would need to be able to redo the bug to look into it further.

Does this happen on other FreeBSD systems too?

I can't redo this on Linux, from the stack trace it looks like it's failing on the call: `PyDict_GetItemString(interp->modules, "__main__")` With an error converting `"__main__"` to a Python string. I would guess something about Python's internal state has become corrupt/invalid, but would need to be able to redo the bug to look into it further. Does this happen on other FreeBSD systems too?

Campbell Barton commented

2018-10-19 06:07:48 +02:00

Update, tried on FreeBSD and all tooltips display without crashing in object and editmode, brief and extended:

Blender 9b5183769b869a4a69488d1fc073f175fa1f1b74
clang --version:

`FreeBSD clang version 6.0.0 (tags/RELEASE_600/final 326565) (based on LLVM 6.0.0)`

uname -a

`FreeBSD freebsd 11.2-RELEASE FreeBSD 11.2-RELEASE #0 r335510: Fri Jun 22 04:32:14 UTC 2018`

python3.7 --version

`Python 3.7.0 (default, Oct  2 2018, 04:59:56)`

Update, tried on FreeBSD and all tooltips display without crashing in object and editmode, brief and extended: - Blender `9b5183769b869a4a69488d1fc073f175fa1f1b74` - `clang --version`: ``` `FreeBSD clang version 6.0.0 (tags/RELEASE_600/final 326565) (based on LLVM 6.0.0)` ``` - `uname -a` ``` `FreeBSD freebsd 11.2-RELEASE FreeBSD 11.2-RELEASE #0 r335510: Fri Jun 22 04:32:14 UTC 2018` ``` - `python3.7 --version` ``` `Python 3.7.0 (default, Oct 2 2018, 04:59:56)`

Shane Ambler commented

2018-10-21 04:43:57 +02:00

Changed status from 'Open' to: 'Resolved'

Shane Ambler closed this issue

2018-10-21 04:43:57 +02:00

Shane Ambler commented

2018-10-21 04:43:57 +02:00

I got it working last night, but I can't figure out what change fixed it.

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 displaying toolbar tooltips #57114