Test time out for global::Test_refarg_f8_cs.App.TestEntryPoint() in gcstress0x3-gcstress0xc

[JulieLeeMSFT]

Pipeline: runtime-coreclr gcstress0x3-gcstress0xc: 20240630.1

coreclr linux x64 Checked gcstress0x3 @ Ubuntu.2204.Amd64.Open
Methodical_d1.0.1
Methodical_do.0.1
Methodical_r1.0.1
Methodical_ro.0.1
coreclr osx arm64 Checked gcstress0x3 @ OSX.1200.ARM64.Open
Methodical_d1.0.1

Log:

15:03:47.792 Running test: global::Test_refarg_f8_cs.App.TestEntryPoint()
Child process took too long. Timed out... Exiting...
App Exit Code: 110
Expected: 100
Actual: 110
END EXECUTION - FAILED

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[janvorli]

This should be fixed by #103738. The timeout was caused by WaitForPendingFinalizers never returning as the finalizer thread kept generating finalizable garbage forever.