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[ci-scan] Build break: Crossgen2 OOM on HugeArray1.dll (windows x86 R2R_CG2) #128697
Closed as not planned
Description
Build Information
Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1438124
Build error leg or test failing: coreclr Pri1 Runtime Tests Run R2R_CG2 windows x86 checked - jit64_3
Error Details
Crossgen2 runs out of memory when emitting the R2R PE file for HugeArray1.dll on windows-x86 (32-bit address space limitation). The ObjectWriter.EmitChecksums path copies file content into a MemoryStream which exceeds the 32-bit process limit.
Emitting R2R PE file: C:\h\w\AAA50923\w\AF4409D8\e\JIT\jit64\jit64_3\HugeArray1.dll
Unhandled exception. System.OutOfMemoryException: Insufficient memory to continue the execution of the program.
at System.IO.MemoryStream.set_Capacity(Int32)
at System.IO.MemoryStream.EnsureCapacity(Int32)
at System.IO.MemoryStream.Write(Byte[], Int32, Int32)
at System.IO.Stream.CopyTo(Stream, Int32)
at ILCompiler.ObjectWriter.ObjectWriter.EmitChecksums(Stream, List`1)
at ILCompiler.ObjectWriter.ObjectWriter.EmitObject(Stream, IReadOnlyCollection`1, IObjectDumper, Logger)
at ILCompiler.DependencyAnalysis.ReadyToRunObjectWriter.EmitReadyToRunObjects(ReadyToRunContainerFormat, Logger)
at ILCompiler.ReadyToRunCodegenCompilation.Compile(String)
Crossgen2 failed with exitcode - -1073740791
Affected legs:
- runtime-coreclr outerloop (def 108): coreclr Pri1 Runtime Tests Run R2R_CG2 windows x86 checked
First build it occurred: 1437608 (2026-05-28). 2 occurrences in the scanned window.
Error Message
{
"ErrorMessage": "Emitting R2R PE file: C:\\h\\w\\AAA50923\\w\\AF4409D8\\e\\JIT\\jit64\\jit64_3\\HugeArray1.dll\nUnhandled exception. System.OutOfMemoryException: Insufficient memory to continue the execution of the program.",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}Generated by CI Outer-Loop Failure Scanner · ● 23.3M · ◷
Report
Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 0 | 0 | 0 |
Activity
[ci-scan-feedback] Strengthen occurrence thresholds, dedup search, an…
[ci-scan-feedback] Strengthen do-not-disable detection and cross-pipe…