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baseservices\exceptions\fullpdbstacktrace fails in NativeAOT #130647

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baseservices\exceptions\fullpdbstacktrace fails in NativeAOT#130647
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Known Build ErrorUse this to report build issues in the .NET Helix tabarea-Diagnostics-coreclrblocking-outerloopBlocking the 'runtime-coreclr outerloop' and 'runtime-libraries-coreclr outerloop' runs

Description

@jakobbotsch
jakobbotsch
opened on Jul 13, 2026

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1506312
Build error leg or test failing: baseservices\exceptions\fullpdbstacktrace\FullPdbThrower\FullPdbThrower.dll
Pull request: #130081

Error Message

DO NOT USE JSON BELOW IF THIS IS A BUILD BREAK otherwise build analysis will allow pull requests to merge that break the build worse. For a build break, do not use this issue form. Make a regular new issue.

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": ["Not found:", "FullPdbThrower"],
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Test added in #129866, cc @hoyosjs

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1506312
Error message validated: [Not found: "FullPdbThrower.cs"]
Result validation: ❌ Known issue did not match with the provided build.
Validation performed at: 7/13/2026 9:56:53 PM UTC

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1506312
Error message validated: [Not found: FullPdbThrower.cs]
Result validation: ❌ Known issue did not match with the provided build.
Validation performed at: 7/13/2026 9:58:21 PM UTC

Report

Summary

24-Hour Hit Count 7-Day Hit Count 1-Month Count
0 0 0

Report

Build Repository Test Pull Request
1522087 dotnet/runtime baseservices/exceptions/fullpdbstacktrace/FullPdbThrower/FullPdbThrower.cmd #123920
1521923 dotnet/runtime baseservices/exceptions/fullpdbstacktrace/FullPdbThrower/FullPdbThrower.cmd #127297
1507030 dotnet/runtime baseservices\exceptions\fullpdbstacktrace\FullPdbThrower\FullPdbThrower.dll
1506312 dotnet/runtime baseservices\exceptions\fullpdbstacktrace\FullPdbThrower\FullPdbThrower.dll #130081

Summary

24-Hour Hit Count 7-Day Hit Count 1-Month Count
2 2 4

Activity

  1. jakobbotsch
    added
    blocking-outerloopBlocking the 'runtime-coreclr outerloop' and 'runtime-libraries-coreclr outerloop' runs
    Known Build ErrorUse this to report build issues in the .NET Helix tab
    on Jul 13, 2026
  2. dotnet-policy-service
    added
    untriagedNew issue has not been triaged by the area owner
    on Jul 13, 2026
  3. github-actions
    added
    area-Infrastructure
    on Jul 13, 2026
  4. github-project-automation
    added this to Runtime Infraon Jul 13, 2026

  5. dotnet-policy-service commented on Jul 13, 2026

    @dotnet-policy-service
    dotnet-policy-serviceBot
    on Jul 13, 2026 – with Dotnet Policy Service
    Contributor

    Tagging subscribers to this area: @dotnet/runtime-infrastructure
    See info in area-owners.md if you want to be subscribed.

  6. jkotas
    added
    area-Diagnostics-coreclr
    and removed
    area-Infrastructure
    on Jul 13, 2026
  7. jkotas
    assigned
    hoyosjs
    on Jul 13, 2026

  8. dotnet-policy-service commented on Jul 13, 2026

    @dotnet-policy-service
    dotnet-policy-serviceBot
    on Jul 13, 2026 – with Dotnet Policy Service
    Contributor

    Tagging subscribers to this area: @steveisok, @tommcdon, @dotnet/dotnet-diag
    See info in area-owners.md if you want to be subscribed.

  9. MichalStrehovsky commented on Jul 14, 2026

    @MichalStrehovsky
    MichalStrehovsky
    on Jul 14, 2026
    Member

    Fixed in #130654

  10. MichalStrehovsky
    closed this as completedon Jul 14, 2026
  11. github-project-automation
    moved this to Done in Runtime Infraon Jul 14, 2026
  12. dotnet-policy-service
    removed
    untriagedNew issue has not been triaged by the area owner
    on Jul 14, 2026
  13. JulieLeeMSFT
    reopened this on Jul 22, 2026
  14. dotnet-policy-service
    added
    untriagedNew issue has not been triaged by the area owner
    on Jul 22, 2026

  15. JulieLeeMSFT commented on Jul 22, 2026

    @JulieLeeMSFT
    JulieLeeMSFT
    on Jul 22, 2026
    Member

    It still failed with the fix. cc @MichalStrehovsky

    Failed in (1):

    Console Log: Console Log
    Source: runtime-coreclr ilasm / coreclr windows x86 Checked ilasmroundtrip @ Windows.10.Amd64.Open / Directed_3

    Failed tests:

    - coreclr windows x64 Checked ilasmroundtrip @ Windows.10.Amd64.Open
- coreclr windows x86 Checked ilasmroundtrip @ Windows.10.Amd64.Open
  - Directed_3
  - baseservices/exceptions/fullpdbstacktrace/FullPdbThrower/FullPdbThrower.cmd

  16. MichalStrehovsky commented on Jul 22, 2026

    @MichalStrehovsky
    MichalStrehovsky
    on Jul 22, 2026
    Member

    It still failed with the fix. cc @MichalStrehovsky

    A failure in "runtime-coreclr ilasm" leg doesn't sound related to native AOT that this issue was tracking.

  17. lateralusX commented on Jul 23, 2026

    @lateralusX
    lateralusX
    on Jul 23, 2026
    Member

    Looks like test triggers some assert in JIT:

    20:57:52.341 Running test: JIT/Directed/refbyref/byref2iu_d/byref2iu_d.dll

Assert failure(PID 11008 [0x00002b00], Thread: 4584 [0x11e8]): Assertion failed 'genActualTypeIsInt(value)' in 'byref2iu:Main():int' during 'Morph - Global' (IL size 189; hash 0x27f1e098; MinOpts)

    File: D:\a\_work\1\s\src\coreclr\jit\morph.cpp:3497
    Image: C:\h\w\BB2E09D8\p\corerun.exe

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

    OS Thread Id: 0x11e8
Child SP       IP Call Site
00D7A5D0 734D5BB2 coreclr!FailFastOnAssert + 34
00D7A5E0 734D6F4F coreclr!_DbgBreakCheck + 1327
00D7B6B0 737F5054 coreclr!CEEInfo::doAssert + 228
00D7B724 717A77BA clrjit!assertAbort + 234
00D7D750 71907D47 clrjit!Compiler::fgMorphExpandLocal + 199
00D7D778 7190B526 clrjit!Compiler::fgMorphSmpOp + 294
00D7D7C8 7190F2D6 clrjit!Compiler::fgMorphTree + 614
00D7D7F4 7190E0F5 clrjit!Compiler::fgMorphStmts + 293
00D7D820 719056FF clrjit!Compiler::fgMorphBlock + 1215
00D7D858 71905B5F clrjit!Compiler::fgMorphBlocks + 191
00D7D894 71783104 clrjit!CompilerPhaseWithStatus::DoPhase + 20
00D7D8A0 71946244 clrjit!Phase::Run + 116
00D7D8D4 71788079 clrjit!Compiler::compCompile + 2121
00D7DD98 7178B289 clrjit!Compiler::compCompileHelper + 2425
00D7DE0C 7178A05A clrjit!Compiler::compCompileAfterInit + 1994
00D7DEE4 71786AFA clrjit!``jitNativeCode'::`8'::__Body::Run'::`5'::__Body::Run + 170
00D7DF00 71786B6A clrjit!`jitNativeCode'::`8'::__Body::Run + 90
00D7DF4C 7178FF13 clrjit!jitNativeCode + 531
00D7E41C 7179621C clrjit!CILJit::compileMethod + 316
00D7E4B4 738251F8 coreclr!invokeCompileMethod + 376
00D7E550 737F0553 coreclr!UnsafeJitFunctionWorker + 691
00D7E624 737EFF58 coreclr!UnsafeJitFunction + 744
00D7E820 738CCFCB coreclr!MethodDesc::JitCompileCodeLocked + 475
00D7E924 738CDB70 coreclr!MethodDesc::JitCompileCodeLockedEventWrapper + 1424
00D7EA48 738CCCF0 coreclr!MethodDesc::JitCompileCode + 1488
00D7EB04 738CF3C7 coreclr!MethodDesc::PrepareCode + 887
00D7EBB0 73731F76 coreclr!CodeVersionManager::PublishVersionableCodeIfNecessary + 1030
00D7ED20 738C893C coreclr!MethodDesc::DoPrestub + 1660
00D7EE94 738D26E8 coreclr!PreStubWorker + 1240
00D7EF98          [PrestubMethodFrame: 00d7ef98] byref2iu_d.dll!byref2iu.Main()
00D7EFF8 73CDC583 coreclr!ThePreStub + 17
00D7F01C 08AA8553 Directed_3.dll!Program.<<Main>$>g__TestExecutor6|0_7(System.IO.StreamWriter, System.IO.StreamWriter, <>c__DisplayClass0_0 ByRef) + 379
00D7F0A0 08AA1B8B 
00D7F0A4 08AA1B8B Directed_3.dll!Program.<Main>$(System.String[]) + 875
00D7F0FC 71F618BE System.Private.CoreLib.dll!System.Environment.CallEntryPoint(IntPtr, System.String[]*, Int32*, Boolean, System.Exception*) + 62
00D7F128 7369488D coreclr!UnmanagedCallersOnlyCaller::InvokeThrowing<int,REF<PtrArray> *,int *,bool> + 525
00D7F260 736A123F coreclr!RunMainInternal + 863
00D7F338 736A0ACA coreclr!``RunMain'::`21'::__Body::Run'::`5'::__Body::Run + 138
00D7F378 736A0C0B coreclr!`RunMain'::`21'::__Body::Run + 187
00D7F3D0 736A0E07 coreclr!RunMain + 343
00D7F450 7369B7F8 coreclr!Assembly::ExecuteMainMethod + 712
00D7F7AC 7373A8CF coreclr!CorHost2::ExecuteAssembly + 1663
00D7F908 73CF74C3 coreclr!coreclr_execute_assembly + 451
00D7F97C 00E815A9 corerun + 71081
00D7FD88 00E846E5 corerun!GetCurrentClrDetails + 549
00D7FE38 00E8D503 corerun!GetCurrentClrDetails + 36931
00D7FE58 00E8D3DA corerun!GetCurrentClrDetails + 36634
00D7FEB4 00E8D27D corerun!GetCurrentClrDetails + 36285
00D7FEBC 00E8D568 corerun!GetCurrentClrDetails + 37032
00D7FEC4 771362C4 kernel32!BaseThreadInitThunk + 36
00D7FED8 77800AA9 ntdll!RtlSubscribeWnfStateChangeNotification + 1081
00D7FF20 77800A74 ntdll!RtlSubscribeWnfStateChangeNotification + 1028

    @JulieLeeMSFT, maybe this should go into a different issue targeting the specific error?

  18. jakobbotsch commented on Jul 23, 2026

    @jakobbotsch
    jakobbotsch
    on Jul 23, 2026
    MemberAuthor

    I think Julie posted the wrong Console log link above, the correct one from the same run is https://helixr1107v0xdcypoyl9e7f.blob.core.windows.net/dotnet-runtime-refs-heads-main-7b8d78afe7fc44e3b5/baseservices-exceptions/1/console.65c6545e.log?helixlogtype=result:

    ILASM RoundTrips
ILASM RoundTrip for FullPdbThrower.dll
C:\h\w\BB2E09D8\p/ildasm -raweh -unicode -out=IL-RT\FullPdbThrower.il IL-RT\FullPdbThrower.dll
C:\h\w\BB2E09D8\p\ilasm -output=FullPdbThrower.dll -DET -DEBUG IL-RT\FullPdbThrower.il
C:\h\w\BB2E09D8\p\ilasm -output=FullPdbThrower.dll -DET -DEBUG IL-RT\FullPdbThrower.il
ILASM determinism succeeded
C:\h\w\BB2E09D8\p\ilasm -output=FullPdbThrower.pdb -DET -DEBUG IL-RT\FullPdbThrower.il
C:\h\w\BB2E09D8\p\ilasm -output=FullPdbThrower.pdb -DET -DEBUG IL-RT\FullPdbThrower.il
ILASM PDB determinism succeeded

ILASM RoundTrip for TestLibrary.dll
C:\h\w\BB2E09D8\p/ildasm -raweh -unicode -out=IL-RT\TestLibrary.il IL-RT\TestLibrary.dll
C:\h\w\BB2E09D8\p\ilasm -output=TestLibrary.dll -DET -DLL IL-RT\TestLibrary.il
C:\h\w\BB2E09D8\p\ilasm -output=TestLibrary.dll -DET -DLL IL-RT\TestLibrary.il
ILASM determinism succeeded
C:\h\w\BB2E09D8\p\ilasm -output=TestLibrary.pdb -DET -DLL -DEBUG IL-RT\TestLibrary.il
C:\h\w\BB2E09D8\p\ilasm -output=TestLibrary.pdb -DET -DLL -DEBUG IL-RT\TestLibrary.il
ILASM PDB determinism succeeded


 "C:\h\w\BB2E09D8\p\corerun.exe" -p "System.Reflection.Metadata.MetadataUpdater.IsSupported=false" -p "System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization=true"  FullPdbThrower.dll 
Xunit.Sdk.ContainsException: Assert.Contains() Failure: Sub-string not found
String:    "System.InvalidOperationException: Exception from f"???
Not found: "FullPdbThrower.cs"
   at Xunit.Assert.Contains(String expectedSubstring, String actualString) in /_/src/arcade/src/Microsoft.DotNet.XUnitAssert/src/StringAsserts.cs:line 35
   at FullPdbThrower.ExceptionToString_FullPdb_IncludesSourceLine()
   at __GeneratedMainWrapper.Main()
Expected: 100
Actual: 101

    But yes it does not look like a NativeAOT issue and rather something related to ilasm roundtripping.

  19. jakobbotsch
    closed this as completedon Jul 23, 2026
  20. dotnet-policy-service
    removed
    untriagedNew issue has not been triaged by the area owner
    on Jul 23, 2026

  21. jakobbotsch commented on Jul 23, 2026

    @jakobbotsch
    jakobbotsch
    on Jul 23, 2026
    MemberAuthor

    I opened #131256 for the JIT assert and #131255 for the fullpdbstacktrace failure

  22. github-actions
    locked and limited conversation to collaborators on Aug 23, 2026
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