Runtime: Test failure: System.Memory.Tests.ReadOnlySequenceTestsChar+SplitInThreeSegments.ReadOnlyBufferDoesNotAllowSlicingOutOfRange(fail: Action`1 { Method = Void <get_OutOfRangeSliceCases>b__27_22(System.Buffers.ReadOnlySequence`1[System.Char]), Target = <>c { } })

[v-haren]

failed in job: runtime-coreclr libraries-jitstress 20200728.1

Error message
~~~
Assert.Throws() Failure
Expected: typeof(System.ArgumentOutOfRangeException)
Actual: (No exception was thrown)

Stack trace
at System.Memory.Tests.ReadOnlySequenceTestsChar.ReadOnlyBufferDoesNotAllowSlicingOutOfRange(Action`1 fail) in /_/src/libraries/System.Memory/tests/ReadOnlyBuffer/ReadOnlySequenceTests.char.cs:line 100
~~~

[Dotnet-GitSync-Bot]

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

[BruceForstall]

From net5.0-Linux-Release-arm-CoreCLR_checked-jitstress2_tiered

[adamsitnik]

@BruceForstall do I understand correctly that this is a JIT issue specific to ARM? I wonder what milestone we should set for it

[AndyAyersMS]

I'll investigate.

[AndyAyersMS]

Adding to 5.0 for now, will reconsider when we know more.

[AndyAyersMS]

Failed again on 8/7, so seems like it may still be active. Trying to repro locally.

[AndyAyersMS]

No repros yet using 6ed1e41e590c4, 100 tries (each ~4 mins). Will queue up another set.

[AndyAyersMS]

600 runs with no local repro. No CI failures since the one back on 8/7. Am going to close as no repro.

[adamsitnik]

@AndyAyersMS thank you!