Test failure GC\\Regressions\\Github\\Runtime_76219\\Runtime_76219\\Runtime_76219.cmd

[v-wenyuxu]

Run: runtime-coreclr gcstress-extra 20221126.1

Failed test:

coreclr windows x86 Checked heapverify1 @ Windows.10.Amd64.Open

- GC\\Regressions\\Github\\Runtime_76219\\Runtime_76219\\Runtime_76219.cmd

Error message:

Assert failure(PID 876 [0x0000036c], Thread: 4844 [0x12ec]): Precondition failure: Illegal null pointerFAILED: ok
FAILED: CheckPointer(pv)
D:\a_work\1\s\src\coreclr\vm\ceemain.cpp, line: 1013

CORECLR! CHECK::Trigger + 0x256 (0x711dd930)
CORECLR! FilterStartupException + 0x20C (0x71303289)
CORECLR! EEStartup + 0x67 (0x71302355)
CORECLR! EH4_CallFilterFunc + 0x12 (0x7131a772)
CORECLR! except_handler4 + 0xD4 (0x71316724)
NTDLL! RtlConvertUlongToLargeInteger + 0xA2 (0x77ac3292)
NTDLL! RtlConvertUlongToLargeInteger + 0x74 (0x77ac3264)
NTDLL! KiUserExceptionDispatcher + 0xF (0x77ab0dbf)
CORECLR! WKS::gc_heap::gc1 + 0x689 (0x711b328d)
CORECLR! WKS::gc_heap::garbage_collect + 0x3B4 (0x711b2b79)
File: D:\a_work\1\s\src\coreclr\inc\check.h Line: 339
Image: C:\h\w\A5DC091E\p\corerun.exe

Return code:      1
Raw output file:      C:\h\w\A5DC091E\w\AFA20916\uploads\Reports\GC.Regressions\Github\Runtime_76219\Runtime_76219\Runtime_76219.output.txt
Raw output:
BEGIN EXECUTION
"C:\h\w\A5DC091E\p\corerun.exe" -p "System.Reflection.Metadata.MetadataUpdater.IsSupported=false"  Runtime_76219.dll
Expected: 100
Actual: -1073740286
END EXECUTION - FAILED
FAILED
Test Harness Exitcode is : 1
To run the test:

set CORE_ROOT=C:\h\w\A5DC091E\p
C:\h\w\A5DC091E\w\AFA20916\e\GC\Regressions\Github\Runtime_76219\Runtime_76219\Runtime_76219.cmd
Expected: True
Actual:   False


Stack trace
   at GC_Regressions._Github_Runtime_76219_Runtime_76219_Runtime_76219_._Github_Runtime_76219_Runtime_76219_Runtime_76219_cmd()
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
   at System.Reflection.MethodInvoker.Invoke(Object obj, IntPtr* args, BindingFlags invokeAttr)

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Issue Details

---

Run: runtime-coreclr gcstress-extra 20221126.1

Failed test:

coreclr windows x86 Checked heapverify1 @ Windows.10.Amd64.Open

- GC\\Regressions\\Github\\Runtime_76219\\Runtime_76219\\Runtime_76219.cmd

Error message:

Assert failure(PID 876 [0x0000036c], Thread: 4844 [0x12ec]): Precondition failure: Illegal null pointerFAILED: ok
FAILED: CheckPointer(pv)
D:\a_work\1\s\src\coreclr\vm\ceemain.cpp, line: 1013

CORECLR! CHECK::Trigger + 0x256 (0x711dd930)
CORECLR! FilterStartupException + 0x20C (0x71303289)
CORECLR! EEStartup + 0x67 (0x71302355)
CORECLR! EH4_CallFilterFunc + 0x12 (0x7131a772)
CORECLR! except_handler4 + 0xD4 (0x71316724)
NTDLL! RtlConvertUlongToLargeInteger + 0xA2 (0x77ac3292)
NTDLL! RtlConvertUlongToLargeInteger + 0x74 (0x77ac3264)
NTDLL! KiUserExceptionDispatcher + 0xF (0x77ab0dbf)
CORECLR! WKS::gc_heap::gc1 + 0x689 (0x711b328d)
CORECLR! WKS::gc_heap::garbage_collect + 0x3B4 (0x711b2b79)
File: D:\a_work\1\s\src\coreclr\inc\check.h Line: 339
Image: C:\h\w\A5DC091E\p\corerun.exe

Return code:      1
Raw output file:      C:\h\w\A5DC091E\w\AFA20916\uploads\Reports\GC.Regressions\Github\Runtime_76219\Runtime_76219\Runtime_76219.output.txt
Raw output:
BEGIN EXECUTION
"C:\h\w\A5DC091E\p\corerun.exe" -p "System.Reflection.Metadata.MetadataUpdater.IsSupported=false"  Runtime_76219.dll
Expected: 100
Actual: -1073740286
END EXECUTION - FAILED
FAILED
Test Harness Exitcode is : 1
To run the test:

set CORE_ROOT=C:\h\w\A5DC091E\p
C:\h\w\A5DC091E\w\AFA20916\e\GC\Regressions\Github\Runtime_76219\Runtime_76219\Runtime_76219.cmd
Expected: True
Actual:   False


Stack trace
   at GC_Regressions._Github_Runtime_76219_Runtime_76219_Runtime_76219_._Github_Runtime_76219_Runtime_76219_Runtime_76219_cmd()
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
   at System.Reflection.MethodInvoker.Invoke(Object obj, IntPtr* args, BindingFlags invokeAttr)

Author:	v-wenyuxu
Assignees:	-
Labels:	arch-x86, os-windows, GCStress, area-GC-coreclr, blocking-clean-ci-optional
Milestone:	-

[EgorBo]

This test verifies that GC doesn't collect an unreferenced frozen object (that becomes referenced again then)
Apparently, it's broken with segments now, perhaps due to recent gc changes? (e.g. #78756). There were no changes related to frozen objects in VM/JIT recently

[mangod9]

@cshung as fyi..

[cshung]

I took a look at the dump. Here are some high-level findings.
The test is run with these environment variables:

DOTNET_HEAPVERIFY=1
DOTNET_GCSegmentSize=8000
DOTNET_GCStress=0x3

This is x86, so we are running Segments, not regions.
It is unrelated to Frozen Object Heap, as SystemDomain::m_FrozenObjectHeapManager is null.

I cannot reproduce it locally yet.

[BruceForstall]

Another dup? #79807