Bug 58566 - Async/await crash notification extension
Summary: Async/await crash notification extension
Status: RESOLVED DUPLICATE of bug 43985
Alias: None
Product: iOS
Classification: Xamarin
Component: Xamarin.iOS.dll ()
Version: XI 10.10 (d15-2)
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2017-08-03 10:56 UTC by Nickolas
Modified: 2017-08-07 11:31 UTC (History)
3 users (show)

Is this bug a regression?: ---
Last known good build:

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Description Nickolas 2017-08-03 10:56:06 UTC
Hi, i'm developing iOS Notification Extension Service, in my code i'm using async/await for async operations. But when i'm using it or even when I try to Task.Delay().Wait() appex notification terminated without any errors. On devices output I get

SpringBoard(UserNotificationsServer)[49] <Error>: Extension error whilst trying to modify push notification C50B-65D5: Error Domain=NSCocoaErrorDomain Code=4097 "connection from pid 1232" UserInfo={NSDebugDescription=connection from pid 1232}

Visual Studio Community 2017 for Mac
Version 7.0.1 (build 24)
Installation UUID: 3bccd6f8-0bff-482e-a184-0dcf7f0c5e0a
	Mono (2017-02/5077205) (64-bit)
	GTK+ 2.24.23 (Raleigh theme)

	Package version: 500010001


.NET Core
Runtime: Not installed
SDK: Not installed
MSBuild SDKs: /Library/Frameworks/Mono.framework/Versions/5.0.1/lib/mono/msbuild/15.0/bin/Sdks

Version: 1.5.4
Location: /Applications/Xamarin Profiler.app/Contents/MacOS/Xamarin Profiler

Apple Developer Tools
Xcode 8.3.3 (12175.1)
Build 8E3004b

Version: (Visual Studio Community)
Hash: d2270eec
Branch: d15-2
Build date: 2017-05-22 16:30:53-0400

Version: (Visual Studio Community)

Version: (Visual Studio Community)
Android SDK: /Users/nickolasshpotenko/Library/Developer/Xamarin/android-sdk-macosx
	Supported Android versions:
		5.0 (API level 21)
		5.1 (API level 22)
		6.0 (API level 23)
		7.0 (API level 24)
		7.1 (API level 25)

SDK Tools Version: 26.0.2
SDK Platform Tools Version: 25.0.5
SDK Build Tools Version: 25.0.3

Java SDK: /usr
java version "1.8.0_101"
Java(TM) SE Runtime Environment (build 1.8.0_101-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.101-b13, mixed mode)

Android Designer EPL code available here:

Xamarin Inspector
Version: 1.2.2
Hash: b71b035
Branch: d15-1
Build date: Fri, 21 Apr 2017 17:57:12 GMT

Build Information
Release ID: 700010024
Git revision: 7ab1ca2ced6f584e56b7a0d4d321d00775cd95c9
Build date: 2017-05-19 05:44:51-04
Xamarin addins: 08d17158f3365beee5e60f67999e607cce4b3f93
Build lane: monodevelop-lion-d15-2

Operating System
Mac OS X 10.12.5
Darwin 16.6.0 Darwin Kernel Version 16.6.0
    Fri Apr 14 16:21:16 PDT 2017
    root:xnu-3789.60.24~6/RELEASE_X86_64 x86_64
Comment 1 Timothy Risi 2017-08-03 17:59:15 UTC
Please include your full build logs, crash reports (if any), and a test case (to reproduce).

To get full build logs just set the log verbosity to diagnostic at the following locations:
- On Visual Studio for Mac: Preferences > Projects > Build
- On Visual Studio for Windows: Tools > Options > Projects and Solutions > Build and Run

On Visual Studio Windows you also want to add `-v -v -v -v` to the mtouch additional arguments by right-clicking the project in the solution explorer and selecting `Properties`.
Note: this is done automatically on Visual Studio for Mac when the log verbosity is set to diagnostic.
Comment 2 Nickolas 2017-08-04 11:02:35 UTC
Related to https://bugzilla.xamarin.com/show_bug.cgi?id=43985
Comment 3 Rolf Bjarne Kvinge [MSFT] 2017-08-04 14:53:51 UTC
@Nickolas, yes, you're probably running into memory issues.

See here how you can get a crash report that would confirm it:

Comment 4 Nickolas 2017-08-07 11:17:17 UTC
    "uuid" : "b136cdf7-0141-3c2f-8cce-e7379e83b410",
    "states" : [
    "killDelta" : 6981,
    "lifetimeMax" : 1131,
    "age" : 26119870,
    "purgeable" : 0,
    "fds" : 50,
    "genCount" : 0,
    "coalition" : 70,
    "rpages" : 384,
    "reason" : "per-process-limit",
    "pid" : 3416,
    "idleDelta" : 4,
    "name" : "First.iOS.Notification",
    "cpuTime" : 0.211007

Yes, thank you, trying to find other way.
Comment 5 Rolf Bjarne Kvinge [MSFT] 2017-08-07 11:31:36 UTC
Thanks for confirming, I'll mark this as a duplicate of bug #43985 then.

*** This bug has been marked as a duplicate of bug 43985 ***