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Replace LowLevelLock with Lock #94991

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merged 1 commit into from
Nov 21, 2023
Merged

Replace LowLevelLock with Lock #94991

merged 1 commit into from
Nov 21, 2023

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MichalStrehovsky
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Context: #94873 (comment)

Cc @dotnet/ilc-contrib

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ghost commented Nov 20, 2023

Tagging subscribers to this area: @agocke, @MichalStrehovsky, @jkotas
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Context: #94873 (comment)

Cc @dotnet/ilc-contrib

Author: MichalStrehovsky
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area-NativeAOT-coreclr
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@MichalStrehovsky MichalStrehovsky mentioned this pull request Nov 20, 2023
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VSadov
VSadov approved these changes Nov 20, 2023
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LGTM

@MichalStrehovsky MichalStrehovsky merged commit 3b61ad9 into main Nov 21, 2023
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@MichalStrehovsky MichalStrehovsky deleted the MichalStrehovsky-patch-1 branch November 21, 2023 07:46
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jkotas commented Nov 21, 2023

I do not think that this is a good change, and it should be reverted. This change can lead to reentrancy crashes if user code overrides SynchronizationContext.Wait and the override attempts to create System.RuntimeType instance (e.g. by calling `object.GetType()).

#94873 (comment) has more context.

MichalStrehovsky added a commit that referenced this pull request Nov 21, 2023
@MichalStrehovsky
Revert "Replace LowLevelLock with Lock (#94991)"
fd5d7a0 
This reverts commit 3b61ad9.
@MichalStrehovsky MichalStrehovsky mentioned this pull request Nov 21, 2023
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I do not think that this is a good change, and it should be reverted. This change can lead to reentrancy crashes if user code overrides SynchronizationContext.Wait and the override attempts to create System.RuntimeType instance (e.g. by calling `object.GetType()).

#94873 (comment) has more context.

Revert in #95071.

stephentoub pushed a commit that referenced this pull request Nov 21, 2023
@MichalStrehovsky
Revert "Replace LowLevelLock with Lock (#94991)" (#95071)
1050695 
This reverts commit 3b61ad9.
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@VSadov VSadov VSadov approved these changes

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