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I'm able to reproduce this when attempting to start debugging from both VS and XS on a Nexus 9. If I set MONO_DEBUG=soft-breakpoints in an AndroidEnvironment file I see the crash shown in the logcat output below. This is working on non 64-bit devices.
Steps to reproduce:
1. Open or create a new Android app.
2. Add a 'plain text' file to the project, with the following text:
3. Set the build action of this file to AndroidEnvironment.
4. Start debugging.
Both Windows and Mac
XA 5.1-series / d23da369e (current stable)
I have checked this issue and able to reproduce the above behavior with the help of steps given in the bug description.I checked this issue on Nexus 9(Api 21).
Device Logs: https://gist.github.com/saurabh360/3944c44e8d8585a1d67f
Ide Logs: https://gist.github.com/saurabh360/07d922fce68cb93e7671
Build Output: https://gist.github.com/saurabh360/6d7cfaf6255a82d6d853
Application Output: https://gist.github.com/saurabh360/518ab63ce9f13a30eeca
=== Xamarin Studio ===
Version 5.9 (build 456)
Installation UUID: 642986ef-b668-4108-b6e5-f58c62d668b6
Mono 4.0.0 ((detached/1aa57ef)
GTK+ 2.24.23 (Raleigh theme)
Package version: 400000146
=== Apple Developer Tools ===
Xcode 6.3 (7569)
=== Xamarin.iOS ===
Version: 126.96.36.1997 (Enterprise Edition)
Build date: 2015-04-27 04:38:13-0400
=== Xamarin.Android ===
Version: 188.8.131.52 (Enterprise Edition)
Android SDK: /Users/360logica/Library/Developer/Xamarin/android-sdk-macosx
Supported Android versions:
2.3 (API level 10)
4.0.3 (API level 15)
4.4 (API level 19)
5.0 (API level 21)
Java SDK: /usr
java version "1.8.0_25"
Java(TM) SE Runtime Environment (build 1.8.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode)
=== Xamarin Android Player ===
Version: Unknown version
Location: /Applications/Xamarin Android Player.app
=== Xamarin.Mac ===
Version: 184.108.40.206 (Enterprise Edition)
=== Build Information ===
Release ID: 509000456
Git revision: 2666387bc794c06828a59aa95d2435714f732b12
Build date: 2015-04-29 08:16:42-04
Xamarin addins: df9b5918c9f7aca6da509fe3e5a62553aa101910
=== Operating System ===
Mac OS X 10.10.0
Darwin 360Logicas-MacBook-Pro.local 14.0.0 Darwin Kernel Version 14.0.0
Fri Sep 19 00:26:44 PDT 2014
This is due to a runtime assert.
> F/ (27383): * Assertion: should not be reached at /Users/builder/data/lanes/monodroid-mavericks-monodroid-5.1-series/d23da369/source/mono/mono/mini/../../../mono-extensions/mono/mini/mini-arm64.c:4629
Soft-breakpoints are now the default on arm64, so this is no longer an issue.