Test failure in RunReflectionScenario_UnsafeRead

[JulieLeeMSFT]

Failed in runtime-coreclr gcstress-extra/20250312.1

coreclr linux x64 Checked gcstress0xc_jitstress2 @ azurelinux.3.amd64.open
coreclr windows x86 Checked gcstress0xc_jitstress2 @ Windows.10.Amd64.Open

Beginning scenario: RunReflectionScenario_UnsafeRead

Assert failure(PID 1816 [0x00000718], Thread: 3180 [0x0c6c]): SanityCheck()

CORECLR! MethodTable::Validate + 0x31 (0x71b7836c)
CORECLR! Object::ValidateInner + 0x12D (0x71b830ed)
CORECLR! Object::Validate + 0x98 (0x71b82f78)
CORECLR! WKS::GCHeap::Promote + 0x8F (0x71ea9f4f)
CORECLR! PromoteCarefully + 0x7B (0x71bc0a9b)
CORECLR! GcEnumObject + 0x63 (0x71c9bbd3)
CORECLR! EnumGcRefsX86 + 0x125A (0x71aabd9a)
CORECLR! EECodeManager::EnumGcRefs + 0x114 (0x71aaaaf4)
CORECLR! GcStackCrawlCallBack + 0x129 (0x71c9be19)
CORECLR! Thread::MakeStackwalkerCallback + 0x48 (0x71bc2beb)
    File: D:\a\_work\1\s\src\coreclr\vm\methodtable.cpp:8502
    Image: C:\h\w\A16A0907\p\corerun.exe

App Exit Code: -1073740286
Expected: 100
Actual: -1073740286
END EXECUTION - FAILED

Beginning scenario: RunReflectionScenario_UnsafeRead
[createdump] Gathering state for process 5349 corerun
[createdump] Crashing thread 14e5 signal 11 (000b)
[createdump] Writing crash report to file /home/helixbot/dotnetbuild/dumps/coredump.5349.dmp.crashreport.json
[createdump] Crash report successfully written
[createdump] Writing minidump with heap to file /home/helixbot/dotnetbuild/dumps/coredump.5349.dmp
[createdump] Written 187011072 bytes (45657 pages) to core file
[createdump] Target process is alive
[createdump] Dump successfully written in 749ms
waitpid() returned successfully (wstatus 00000000) WEXITSTATUS 0 WTERMSIG 0
App Exit Code: 22
Expected: 100
Actual: 22
END EXECUTION - FAILED
+ test_exit_code=1
+ /datadisks/disk1/work/AB240976/p/XUnitLogChecker --results-path JIT/HardwareIntrinsics/HardwareIntrinsics_General_ro --test-wrapper HardwareIntrinsics_General_ro --dumps-path /home/helixbot/dotnetbuild/dumps

[JulieLeeMSFT]

@kunalspathak, PTAL.

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[EgorBo]

Possibly, similar gc hole/buffer overrun as #113113

[kunalspathak]

Possibly, similar gc hole/buffer overrun as #113113

That's what I thought, but this seems to be coming from old tests, so wondering if this is actual gc hole rather than buffer overrun.

_Vector64_ro::JIT.HardwareIntrinsics.General._Vector64.Program.AbsUInt16()