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Fixed in 2021.1.X

Fixed in 2020.2.X

Votes

1

Found in

2018.4

2020.1.3f1

2020.2

Issue ID

1273662

Regression

No

[Random] Editor crashes on mono_metadata_class_equal when entering Play mode

Mono

-

Reproduction steps:
1. Open the user's attached project ("project.zip") using the EnvIronman VM (more information in Edit).
2. Load the "ReproScene"
3. Select AutoRun > Run in the menu bar to start entering/exiting Play mode automatically 100 times
-- Observe the crash

Reproduces on: 2018.4.26f1, 2019.4.10f1, 2020.1.5f1, 2020.2.0b2

First lines of the stack trace:
0x00007ff931ab5f02 (mono-2.0-bdwgc) [metadata.c:5538] mono_metadata_signature_equal
0x00007ff931a22399 (mono-2.0-bdwgc) [ghashtable.c:311] monoeg_g_hash_table_lookup
0x00007ff931aa3040 (mono-2.0-bdwgc) [marshal.c:3604] mono_marshal_get_delegate_invoke_internal
0x00007ff931c29d96 (mono-2.0-bdwgc) [mini-trampolines.c:1262] mono_delegate_trampoline
0x000001da5b6c1073 ((<unknown>))
0x000001d8e8efde80 (Mono JIT Code) System.Dynamic.UpdateDelegates:UpdateAndExecute1<object,
<...>

  1. Resolution Note (fix version 2021.1):

    Fixed issue with dynamic methods not being cleaned up on domain reload which would lead to corrupted data that would then cause this crash.
    Fixed in: 2021.1.0a1

  2. Resolution Note (fix version 2020.2):

    Fixed in: 2020.2.0b14

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