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Assertion failed '!isSizeMistmatch || isStackAllocCandidate' #54844

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BruceForstall opened this issue Jun 28, 2021 · 2 comments · Fixed by #55050
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Assertion failed '!isSizeMistmatch || isStackAllocCandidate' #54844

BruceForstall opened this issue Jun 28, 2021 · 2 comments · Fixed by #55050
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arch-x64 area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI JitStress CLR JIT issues involving JIT internal stress modes
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@BruceForstall
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Windows/Linux x64, JitStress=1/2, with tiering, runtime-coreclr libraries-jitstress pipeline.

https://dev.azure.com/dnceng/public/_build/results?buildId=1208678&view=ms.vss-test-web.build-test-results-tab&runId=36139902&resultId=187459&paneView=debug

C:\h\w\B56D09E0\w\AEE308FD\e>set COMPlus 
COMPlus_JitStress=1
COMPlus_TieredCompilation=1

C:\h\w\B56D09E0\w\AEE308FD\e>call RunTests.cmd --runtime-path C:\h\w\B56D09E0\p 
----- start Mon 06/28/2021  7:54:02.16 ===============  To repro directly: ===================================================== 
pushd C:\h\w\B56D09E0\w\AEE308FD\e\
"C:\h\w\B56D09E0\p\dotnet.exe" exec --runtimeconfig System.Formats.Asn1.Tests.runtimeconfig.json --depsfile System.Formats.Asn1.Tests.deps.json xunit.console.dll System.Formats.Asn1.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing 
popd
===========================================================================================================

C:\h\w\B56D09E0\w\AEE308FD\e>"C:\h\w\B56D09E0\p\dotnet.exe" exec --runtimeconfig System.Formats.Asn1.Tests.runtimeconfig.json --depsfile System.Formats.Asn1.Tests.deps.json xunit.console.dll System.Formats.Asn1.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing  
  Discovering: System.Formats.Asn1.Tests (method display = ClassAndMethod, method display options = None)
  Discovered:  System.Formats.Asn1.Tests (found 527 test cases)
  Starting:    System.Formats.Asn1.Tests (parallel test collections = on, max threads = 4)

Assert failure(PID 4124 [0x0000101c], Thread: 5784 [0x1698]): Assertion failed '!isSizeMistmatch || isStackAllocCandidate' in 'System.Formats.Asn1.Tests.Writer.SimpleWriterTests:DisposeDefaultScope()' during 'Determine first cold block' (IL size 16)

    File: D:\workspace\_work\1\s\src\coreclr\jit\morphblock.cpp Line: 227
    Image: C:\h\w\B56D09E0\p\dotnet.exe

----- end Mon 06/28/2021  7:54:17.03 ----- exit code -1073740286 ----------------------------------------------------------

@sandreenko Related to recent block morphing changes?
@dotnet/jit-contrib

@BruceForstall BruceForstall added JitStress CLR JIT issues involving JIT internal stress modes arch-x64 area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI labels Jun 28, 2021
@BruceForstall BruceForstall added this to the 6.0.0 milestone Jun 28, 2021
@dotnet-issue-labeler dotnet-issue-labeler bot added the untriaged New issue has not been triaged by the area owner label Jun 28, 2021
@JulieLeeMSFT JulieLeeMSFT removed the untriaged New issue has not been triaged by the area owner label Jun 28, 2021
@JulieLeeMSFT
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@BruceForstall I assigned this to you now.

@sandreenko
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@sandreenko Related to recent block morphing changes?

looks like, let me take a look

@ghost ghost added the in-pr There is an active PR which will close this issue when it is merged label Jul 2, 2021
@ghost ghost removed the in-pr There is an active PR which will close this issue when it is merged label Jul 2, 2021
@ghost ghost locked as resolved and limited conversation to collaborators Aug 1, 2021
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