Fix #109771: deps_builder: crash in Embree HW BVH building #109966
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Brecht Van Lommel
Ray molenkamp
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Reference: blender/blender#109966
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Delete Branch "xavierh/blender:embree_arena_fix_main"
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When an offline render was done side by side render preview, further
render preview updates requiring BVH to be rebuilt would trigger a
crash.
This will be fixed upstream the same way in Embree 4.2.
@LazyDodo @ideasman42 this fix means a rebuild of the embree library on Windows and Linux.
how far off is 4.2? and how important is it to fix this bug asap?
4.2 is for July 20nd according to https://github.com/embree/embree/issues/453
But it has more changes than just this fix, I haven't tested it enough from blender to recommend it yet, I feel it's safer to just patch it up at this stage, for 3.6 LTS at least.
Regarding the importance - you're the judge - the workflow the issue kicks in seems common enough to be faced by many users.
ok then, was hoping to ride it out till 4.2 , but you make a good point about 3.6 LTS it'll need this fix regardless
@LazyDodo how do we land it for 4.0 and 3.6? I do source and ask for it to get backported to 3.6 then you handle deps builder or you do it all at once?
You can just land in main, then add it to #109399 , I'll update both #104895 and #109244 once the commits show up in their respective branches.