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Using Xamarin Profiler to find memory leak in Xamarin iOS app - the profiling session with start and the app will launch - after 20 seconds or so, the session ends and the app exits. The Console tab ends with this log entry:
2018-03-06 17:20:58.978 Wolf.iOS[438:100441] error: * Assertion at /Users/builder/data/lanes/5808/1c6f300e/source/xamarin-macios/external/mono/mono/profiler/log.c:546, condition `mono_lls_insert (&log_profiler.profiler_thread_list, hp, &thread->node) && "Why can't we insert the thread in the LLS?"' not met
Xamarin.Hosting: Process '438' exited.
Application 'com.ifit.standalone.inhouse' terminated.
Testing a new application on the iPhone 8 results in the same error.
Application exits and Profiler crashes after 20 seconds.
Xamarin Profiler will profile the iOS application once deployed to an actual device.
=== Visual Studio Enterprise 2017 for Mac ===
Version 7.4 (build 1033)
Installation UUID: 72443255-1eb1-4052-a278-bd5f5aeb1e15
Mono 18.104.22.168 (2017-10/835a98d8559) (64-bit)
GTK+ 2.24.23 (Raleigh theme)
Package version: 508000129
=== NuGet ===
=== .NET Core ===
MSBuild SDKs: /Library/Frameworks/Mono.framework/Versions/5.8.0/lib/mono/msbuild/15.0/bin/Sdks
=== Xamarin.Profiler ===
Location: /Applications/Xamarin Profiler.app/Contents/MacOS/Xamarin Profiler
=== Apple Developer Tools ===
Xcode 9.2 (13772)
=== Xamarin.Mac ===
Version: 22.214.171.124 (Visual Studio Enterprise)
=== Xamarin.iOS ===
Version: 126.96.36.199 (Visual Studio Enterprise)
Build date: 2018-02-07 23:42:40-0500
=== Xamarin.Android ===
Version: 188.8.131.52 (Visual Studio Enterprise)
Android SDK: /Users/peter.mikelsons/Library/Developer/Xamarin/android-sdk-macosx
Supported Android versions:
2.3 (API level 10)
4.0.3 (API level 15)
5.0 (API level 21)
6.0 (API level 23)
7.0 (API level 24)
7.1 (API level 25)
8.0 (API level 26)
SDK Tools Version: 25.2.5
SDK Platform Tools Version: 25.0.5
SDK Build Tools Version: 26.0.0
Java SDK: /usr
java version "1.8.0_131"
Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)
Android Designer EPL code available here:
=== Xamarin Inspector ===
Build date: Fri, 19 Jan 2018 22:00:34 GMT
Client compatibility: 1
=== Build Information ===
Release ID: 704001033
Git revision: 053991068f3c88497d3e5cc52fe7fdf57c28b62f
Build date: 2018-02-28 05:02:28-05
Xamarin addins: cc3283953e0af0b8bfab1bdfdf847d9e403c4606
Build lane: monodevelop-lion-d15-6
=== Operating System ===
Mac OS X 10.12.6
Darwin 16.7.0 Darwin Kernel Version 16.7.0
Thu Jan 11 22:59:40 PST 2018
=== Enabled user installed addins ===
Macaque Tips 0.1.2
Internet of Things (IoT) development (Preview) 7.1
@Jordan Can you please attach the profiler logs (Help->Open log directory) to the bug?
Created attachment 26212 [details]
Xamarin Profiler log (zipped)
This is indeed a mono profiler crash, so moving it to Mono bug tracker at GH -> https://github.com/mono/mono/issues/7683
The mono issue that this was moved to has some additional questions on it. Could you please follow up there? We currently don't have enough info to investigate this further.