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JIT: HardwareIntrinsics_Arm tests failing with GC holes #112362

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amanasifkhalid opened this issue Feb 10, 2025 · 2 comments · Fixed by #112389
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JIT: HardwareIntrinsics_Arm tests failing with GC holes #112362

amanasifkhalid opened this issue Feb 10, 2025 · 2 comments · Fixed by #112389
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arch-arm64 area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI blocking-clean-ci-optional Blocking optional rolling runs in-pr There is an active PR which will close this issue when it is merged
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@amanasifkhalid
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Example run (console log). Numerous tests are hitting the following assert:

Assert failure(PID 6796 [0x00001a8c], Thread: 1624 [0x0658]): !CREATE_CHECK_STRING(!"Detected use of a corrupted OBJECTREF. Possible GC hole.")

CORECLR! `Object::ValidateInner'::`1'::catch$13 + 0xDC (0x00007ffc`9605cb24)
CORECLR! CallSettingFrame + 0x68 (0x00007ffc`95ab26c0)
CORECLR! _FrameHandler3::CxxCallCatchBlock + 0x1C0 (0x00007ffc`95faeb90)
<no module>! <no symbol> + 0x0 (0xec1b7ffc`ed183168)
    File: D:\a\_work\1\s\src\coreclr\vm\object.cpp:638
    Image: C:\h\w\C02C0A09\p\corerun.exe

Configuration:

set DOTNET_TieredCompilation=0
set DOTNET_GCStress=0xC
set DOTNET_HeapVerify=1
set DOTNET_JITMinOpts=1

cc @dotnet/arm64-contrib

@amanasifkhalid amanasifkhalid added arch-arm64 area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI blocking-clean-ci-optional Blocking optional rolling runs labels Feb 10, 2025
@amanasifkhalid amanasifkhalid added this to the 10.0.0 milestone Feb 10, 2025
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Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
See info in area-owners.md if you want to be subscribed.

@kunalspathak kunalspathak self-assigned this Feb 10, 2025
@amanasifkhalid
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This assert seems to only be hitting for SVE tests, so I suspect the enablement of Cobalt machines in CI has exposed GC info bugs with some instructions.

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arch-arm64 area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI blocking-clean-ci-optional Blocking optional rolling runs in-pr There is an active PR which will close this issue when it is merged
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