Regression: Join Area in causes crashes in some cases #43714
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Reference: blender/blender#43714
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System Information
64bit Manjaro Linux, kernel 3.14.32
CPU: AMD Phenom II 970 Deneb quad-core
GPU: nVidia GTX 650 Ti, driver 343.36
Blender Version
Broken: 2.73
691cb61Worked: 2.73
b4d8fb5Short description of error
Yay, fourth post-2.73 crash I've found! This bug is very simple and repros with 100% consistency on my system. What happens is if I use Split Area on the UV/Image Editor and then undo it by Join Area, blender instantly crashes.
A second instance where a crash results is doing Split Area on any pane, and then opening another file or reopening the current one.
Perhaps something in the UI is getting corrupted?
Exact steps for others to reproduce the error
Case 1:
Case 2:
Crash Log: blender.crash.txt
Changed status to: 'Open'
Added subscriber: @ZauberParacelsus
Added subscriber: @JulianEisel
Cannot recreate that here. Could you run the softwaregl bundled with Blender? This will be quite slow, but shows us if this is a gpu driver issue or not.
Still occurs with softwaregl. What OS were you using, and was it 32bit or 64bit?
Added subscriber: @ideasman42
@ZauberParacelsus
Please include exact steps to redo the bug, starting from factory settings.
I tested splitting & joining image & render windows many times, works fine here.
@ideasman42 Issue does not repro from factory reset. However, after a factory reset, the issue repros again when I load up my old default blender scene.
May have more luck performing the repro steps above with it: startup.blend
Further note, I do not know what steps, if any, are required in order to redo the bug. The issue came out of nowhere, but does not occur in 2.73 release, and the startup.blend I supplied has not been modified since November 29th.
@ZauberParacelsus, please include steps to redo the bug from the
startup.blendlinked above.I already put repro steps above in the initial report.
Still not able to reproduce that here. You build Blender on your own, right? So you could test with latest master or buildbot builds to see if the issue is present in them. Also please make sure you are not in debug mode (CMAKE_BUILD_TYPE must be set to Release)
Ran steps (Case 1 & Case 2), cant redo this.
Moving this to unconfirmed
@JulianEisel: I used one of the buildbot builds for testing this one.
Since the issue will not repro for any developers, I am compiling a debug build of blender so that I can obtain a backtrace through gdb.
Okay, got the backtraces.
This one is for when simply splitting a panel and reloading the file: T43714_backtrace_1.txt
This one is for when splitting a UV/Texture Edit panel and then joining it: T43714_backtrace_2.txt
@ZauberParacelsus
I'm not sure what splitting a panel even means (panels can only be collapsed), please give exact and detailed steps.
Splitting and joining windows is a common operation. If it only fails on your computer, its possibly not even a bug in Blender. (possibly a corrupt blend file for example).
This is why we ask if you can redo from factory startup.
I don't even know what the correct name is. Area, I guess? When I was talking about panels, I was referring to things like 3D View, Timeline, and UV/Image Editor.
Added subscriber: @Psy-Fi
Nope, can't reproduce here either...
It's probably the userpref that has the issue, it may even be an erratic add-on. Can you try changing options in your user preferences and test which one causes the issue?
This issue can be closed for now. It no longer occurs under the current builds from buildbot,
fda1198Changed status from 'Open' to: 'Resolved'