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Fixed

Votes

0

Found in

2022.3.12f1

2023.1.19f1

2023.2.0b16

2023.3.0a12

Issue ID

UUM-54961

Regression

Yes

Crash on block_remove when continuously instantiating and destroying a prefab

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Reproduction steps:
1. Open the attached “repro-project”
2. Open the “Assets/Scenes/SampleScene.unity“ scene
3. Enter Play Mode
4. Observe the crash

Reproducible with: 2022.2.9f1, 2022.3.12f1, 2023.1.19f1, 2023.2.0b16, 2023.3.0a12
Not reproducible with: 2021.3.32f1, 2022.2.8f1

Reproduced on: Windows 10 Pro
Not reproducible on: No other environment tested

Note: The script causing the crash repeatedly creates a GameObject, pauses for 0.2 seconds, and then destroys it

First few lines of the stack traces:
0x00007FF658687192 (Unity) block_remove
0x00007FF6586870E8 (Unity) block_merge_next
0x00007FF6586878BC (Unity) tlsf_realloc_align_inplace
0x00007FF65645720E (Unity) DynamicHeapAllocator::Reallocate
0x00007FF656460BE5 (Unity) DualThreadAllocator<DynamicHeapAllocator>::Reallocate

0x00007FFE1695936A (Unity) remove_free_block
0x00007FFE169590B3 (Unity) block_locate_free
0x00007FFE1695977C (Unity) tlsf_memalign
0x00007FFE145DC08B (Unity) DynamicHeapAllocator::Allocate
0x00007FFE145E2B40 (Unity) DynamicHeapAllocator::Reallocate

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