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System.Threading.Tasks.Tests.AsyncProfilerTests.StateMachineAsync_CallstackStressWithVaryingDepths test failure

area-Diagnostics-coreclr

blocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms' Blocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'

Known Build ErrorUse this to report build issues in the .NET Helix tab Use this to report build issues in the .NET Helix tab

untriagedNew issue has not been triaged by the area owner New issue has not been triaged by the area owner

Status: Open.

#129871 In dotnet/runtime;

· jkotas opened on Jun 25, 2026

[wasm][coreCLR] R2R reflection-invoke of a shared-generic (reference-type) method instantiation crashes (corrupt MethodTable)

arch-wasmWebAssembly architecture WebAssembly architecture

area-ReadyToRun

os-browserBrowser variant of arch-wasm Browser variant of arch-wasm

Status: Open.

#129861 In dotnet/runtime;

· pavelsavara opened on Jun 25, 2026

[wasm][coreCLR] R2R delegate* unmanaged<> call to [UnmanagedCallersOnly] method traps with indirect call signature mismatch

arch-wasmWebAssembly architecture WebAssembly architecture

area-ReadyToRun

os-browserBrowser variant of arch-wasm Browser variant of arch-wasm

untriagedNew issue has not been triaged by the area owner New issue has not been triaged by the area owner

Status: Open.

#129857 In dotnet/runtime;

· pavelsavara opened on Jun 25, 2026

NativeAOT stack overflow with recursive GVM delegate on struct interface call

area-NativeAOT-coreclr

untriagedNew issue has not been triaged by the area owner New issue has not been triaged by the area owner

Status: Open.

#129855 In dotnet/runtime;

· hez2010 opened on Jun 25, 2026

Running wasm with R2R'd System.Private.CoreLib

arch-wasmWebAssembly architecture WebAssembly architecture

area-Interop-mono

os-browserBrowser variant of arch-wasm Browser variant of arch-wasm

untriagedNew issue has not been triaged by the area owner New issue has not been triaged by the area owner

Status: Open.

#129850 In dotnet/runtime;

· AndyAyersMS opened on Jun 25, 2026

[browser] Use the new version of V8 with --experimental-wasm-exnref

arch-wasmWebAssembly architecture WebAssembly architecture

area-Host

disabled-testThe test is disabled in source code against the issue The test is disabled in source code against the issue

os-browserBrowser variant of arch-wasm Browser variant of arch-wasm

Status: Open.

#129849 In dotnet/runtime;

· pavelsavara opened on Jun 25, 2026

·

11.0.0

[API Proposal]: Base64Url option to emit padding

api-suggestionEarly API idea and discussion, it is NOT ready for implementation Early API idea and discussion, it is NOT ready for implementation

area-System.Buffers

untriagedNew issue has not been triaged by the area owner New issue has not been triaged by the area owner

Status: Open.

#129847 In dotnet/runtime;

· mtmk opened on Jun 25, 2026

[Perf] Linux/arm64: 9 Regressions on 6/24/2026 7:31:32 AM +00:00

arch-arm64

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

os-linuxLinux OS (any supported distro) Linux OS (any supported distro)

runtime-coreclrspecific to the CoreCLR runtime specific to the CoreCLR runtime

tenet-performancePerformance related issue Performance related issue

tenet-performance-benchmarksIssue from performance benchmark Issue from performance benchmark

untriagedNew issue has not been triaged by the area owner New issue has not been triaged by the area owner

Status: Open.

#129860 In dotnet/runtime;

· performanceautofiler opened on Jun 25, 2026

Versioning issue with ComInterop and async variants

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

Status: Open.

#129841 In dotnet/runtime;

· jakobbotsch opened on Jun 25, 2026

·

11.0.0

[ci-scan] Test failure: GC object corruption assert (Object::ValidateInner) in runtime-coreclr jit-cfg

agentic-workflows

blocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms' Blocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'

Known Build ErrorUse this to report build issues in the .NET Helix tab Use this to report build issues in the .NET Helix tab

untriagedNew issue has not been triaged by the area owner New issue has not been triaged by the area owner

Status: Open.

#129835 In dotnet/runtime;

· github-actions opened on Jun 25, 2026

System.Text.Json source generator emits "" for null byte[] properties

area-System.Text.Json

bug

source-generatorIndicates an issue with a source generator feature Indicates an issue with a source generator feature

Status: Open.

#129833 In dotnet/runtime;

· lezzi opened on Jun 25, 2026

·

11.0.0

Test failure: Microsoft.AspNetCore.Hosting.FunctionalTests.ShutdownTests.ShutdownTestRun

area-Extensions-Hosting

blocking-clean-ci-optionalBlocking optional rolling runs Blocking optional rolling runs

Status: Open.

#129832 In dotnet/runtime;

· VincentBu opened on Jun 25, 2026