Bug 10539 - ExecutionEngineException on ClosedOverNullReferenceInstanceMethod test (mscorlib)
Summary: ExecutionEngineException on ClosedOverNullReferenceInstanceMethod test (mscor...
Alias: None
Product: iOS
Classification: Xamarin
Component: Mono runtime / AOT compiler ()
Version: XI 10.5.99 (Xcode 8.3 previews)
Hardware: PC Mac OS
: Normal minor
Target Milestone: Future Cycle (TBD)
Assignee: Zoltan Varga
Depends on:
Reported: 2013-02-21 11:55 UTC by Marek Safar
Modified: 2017-03-20 11:22 UTC (History)
7 users (show)

Is this bug a regression?: No
Last known good build:

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Description Marek Safar 2013-02-21 11:55:06 UTC
This is when running corlib DelegateTest::ClosedOverNullReferenceInstanceMethod on device

ClosedOverNullReferenceInstanceMethod : System.ExecutionEngineException : Attempting to JIT compile method '(wrapper delegate-invoke) <Module>:invoke_void__this___int (int)' while running with --aot-only. See http://docs.xamarin.com/ios/about/limitations for more information.
2013-02-21 13:13:33.639 mscorlibtests[2849:907] 		  at MonoTests.System.DelegateTest.ClosedOverNullReferenceInstanceMethod () [0x00069] in /Developer/MonoTouch/Source/mono/mcs/class/corlib/Test/System/DelegateTest.cs:1069 
2013-02-21 13:13:33.644 mscorlibtests[2849:907] 		  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
2013-02-21 13:13:33.648 mscorlibtests[2849:907] 		  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x0005a] in /Developer/MonoTouch/Source/mono/mcs/class/corlib/System.Reflection/MonoMethod.cs:223
Comment 1 Zoltan Varga 2013-03-08 19:16:48 UTC
These tests have now been disabled until this is fixed.

The problem is that these tests require specialized delegate-invoke wrappers and those are not currently generated by the AOT compiler.
Comment 3 PJ 2013-11-19 16:44:53 UTC
This bug was targeted for a past milestone, moving to the next non-hotfix active milestone.
Comment 4 GouriKumari 2016-01-11 22:14:50 UTC
Based on comment #!, I am moving this message to "far future".
Comment 5 Vincent Dondain [MSFT] 2017-02-28 21:10:45 UTC
@marek, @zoltan Is this still happening? Are those tests still disabled / failing?

If so please set the bug to confirmed otherwise let us close this.
Comment 6 Vincent Dondain [MSFT] 2017-03-01 17:29:33 UTC
Found the test!

This is still happening:

(tried on iOS 10.3 device with this environment https://gist.github.com/VincentDondain/63f2e75d965c34a68debd564cd235ee5)

2017-03-01 12:19:48.055 mscorlibtests[1794:590901] 	[PASS] DelegateTest.ClosedOverNullReferenceStaticMethod
2017-03-01 12:19:48.061 mscorlibtests[1794:590901] Tests run: 1 Passed: 1 Inconclusive: 0 Failed: 0 Ignored: 0
2017-03-01 12:19:49.087 mscorlibtests[1794:590901] [Runner executing:	MonoTests.System.DelegateTest.ClosedOverNullReferenceInstanceMethod]
2017-03-01 12:19:49.087 mscorlibtests[1794:590901] [MonoTouch Version:	10.5.0]
2017-03-01 12:19:49.088 mscorlibtests[1794:590901] [Assembly:	Xamarin.iOS.dll (64 bits)]
2017-03-01 12:19:49.088 mscorlibtests[1794:590901] [GC:	sgen]
2017-03-01 12:19:49.089 mscorlibtests[1794:590901] [iPhone:	iOS v10.3]
2017-03-01 12:19:49.091 mscorlibtests[1794:590901] [Device Name:	iPhone 7]
2017-03-01 12:19:49.091 mscorlibtests[1794:590901] [Device UDID:	unknown]
2017-03-01 12:19:49.092 mscorlibtests[1794:590901] [Device Locale:	en_US]
2017-03-01 12:19:49.093 mscorlibtests[1794:590901] [Device Date/Time:	3/1/2017 12:19:49 PM]
2017-03-01 12:19:49.093 mscorlibtests[1794:590901] [Bundle:	com.xamarin.mscorlibtests]
2017-03-01 12:19:49.113 mscorlibtests[1794:590901] 	[FAIL] DelegateTest.ClosedOverNullReferenceInstanceMethod : System.ExecutionEngineException : Attempting to JIT compile method '(wrapper delegate-invoke) <Module>:invoke_closed_over_null_void ()' while running with --aot-only. See http://docs.xamarin.com/ios/about/limitations for more information.
2017-03-01 12:19:49.114 mscorlibtests[1794:590901] 		  at MonoTests.System.DelegateTest.ClosedOverNullReferenceInstanceMethod () [0x00033] in /Users/vidondai/Documents/xi-master/xamarin-macios/external/mono/mcs/class/corlib/Test/System/DelegateTest.cs:1054 
2017-03-01 12:19:49.114 mscorlibtests[1794:590901] 		  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
2017-03-01 12:19:49.114 mscorlibtests[1794:590901] 		  at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00038] in /Users/builder/data/lanes/1381/d2cbd993/source/xamarin-macios/_ios-build/Library/Frameworks/Xamarin.iOS.framework/Versions/git/src/mono/mcs/class/corlib/System.Reflection/MonoMethod.cs:305 
2017-03-01 12:19:49.119 mscorlibtests[1794:590901] Tests run: 1 Passed: 0 Inconclusive: 0 Failed: 1 Ignored: 0
Comment 7 Zoltan Varga 2017-03-03 17:45:15 UTC
These tests are marked NotWorking on mobile, and the problem is not expected to be fixed in the near future.
Comment 8 Zoltan Varga 2017-03-20 11:22:42 UTC