Bug 23313 - Cannot find an outgoing row head for incoming head
Summary: Cannot find an outgoing row head for incoming head
Status: RESOLVED NORESPONSE
Alias: None
Product: iOS
Classification: Xamarin
Component: General ()
Version: master
Hardware: PC Mac OS
: Normal normal
Target Milestone: Untriaged
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2014-09-23 17:47 UTC by Christer Nordvik
Modified: 2016-05-26 00:04 UTC (History)
3 users (show)

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

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Status:
RESOLVED NORESPONSE

Description Christer Nordvik 2014-09-23 17:47:15 UTC
I have never seen this error before but experienced it on my iPhone 6 Plus phone running my app with the latest Beta version of Xamarin.iOS. I have no idea what caused it and cannot reproduce it at the moment. Any idea where I could start to look?  

Integralization Adjustments:
(none)
Statistics:
124 rows. Variable counts:
1 ->  21
2 ->  82
3 ->   4
4 ->   7
5 ->   3
6 ->   2
7 ->   1
8 ->   2
9 ->   2
}: internal error.  Cannot find an outgoing row head for incoming head <unknown var (bug!) with engine as delegate:0x18f720a0>{id: 7993}, which should never happen. (MonoTouch.Foundation.MonoTouchException)
(null)
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: Stacktrace:
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>:   at <unknown> <0xffffffff>
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>:
Native stacktrace:
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	0   NDC2010                             0x00a02f2d NDC2010 + 10080045
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	1   NDC2010                             0x00a08587 NDC2010 + 10102151
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	2   libsystem_platform.dylib            0x3a0d887b _sigtramp + 42
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	3   libsystem_pthread.dylib             0x3a0dcd37 pthread_kill + 62
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	4   libsystem_c.dylib                   0x39ffe909 abort + 76
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	5   NDC2010                             0x00abbd08 NDC2010 + 10837256
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	6   NDC2010                             0x00a0342f NDC2010 + 10081327
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	7   NDC2010                             0x00a10c33 NDC2010 + 10136627
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	8   NDC2010                             0x00a02bed NDC2010 + 10079213
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	9   NDC2010                             0x00a01c6b NDC2010 + 10075243
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	10  NDC2010                             0x009fb6db NDC2010 + 10049243
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	11  NDC2010                             0x005ada08 NDC2010 + 5536264
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	12  NDC2010                             0x00abbe20 NDC2010 + 10837536
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	13  NDC2010                             0x00aad0b8 NDC2010 + 10776760
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	14  CoreFoundation                      0x2c2fa16f <redacted> + 630
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	15  libobjc.A.dylib                     0x39a18f13 <redacted> + 174
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	16  libc++abi.dylib                     0x39341de3 <redacted> + 78
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	17  libc++abi.dylib                     0x393418af __cxa_rethrow + 102
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	18  libobjc.A.dylib                     0x39a18dd3 objc_exception_rethrow + 42
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	19  CoreFoundation                      0x2c20c6bd CFRunLoopRunSpecific + 632
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	20  CoreFoundation                      0x2c20c433 CFRunLoopRunInMode + 106
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	21  GraphicsServices                    0x335740a9 GSEventRunModal + 136
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	22  UIKit                               0x2f7f6809 UIApplicationMain + 1440
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	23  NDC2010                             0x004295dc NDC2010 + 3945948
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	24  NDC2010                             0x003b2970 NDC2010 + 3459440
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	25  NDC2010                             0x003b293c NDC2010 + 3459388
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	26  NDC2010                             0x002f10cc NDC2010 + 2666700
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	27  NDC2010                             0x0058a210 NDC2010 + 5390864
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	28  NDC2010                             0x00a103e7 NDC2010 + 10134503
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	29  NDC2010                             0x00a5a741 NDC2010 + 10438465
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	30  NDC2010                             0x00a5e6b7 NDC2010 + 10454711
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	31  NDC2010                             0x00a5e4ff NDC2010 + 10454271
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	32  NDC2010                             0x009f9459 NDC2010 + 10040409
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	33  NDC2010                             0x00aaac14 NDC2010 + 10767380
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	34  NDC2010                             0x009da91d NDC2010 + 9914653
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>: 	35  libdyld.dylib                       0x39f98aaf <redacted> + 2
Sep 23 23:41:01 Christers-iPhone NDC2010[472] <Error>:
=================================================================



Xamarin Studio
Version 5.4 (build 240)
Installation UUID: 5cef7c77-0f10-46e5-a97c-608d1d336d1d
Runtime:
	Mono 3.4.0 ((no/c3fc3ba)
	GTK+ 2.24.23 (Raleigh theme)

	Package version: 304000204

Apple Developer Tools
Xcode 6.0 (6299)
Build 6A313

Xamarin.iOS
Version: 8.0.0.62 (Business Edition)
Hash: 8bd8158
Branch: 
Build date: 2014-09-18 09:12:55-0400

Xamarin.Android
Version: 4.16.0 (Starter Edition)
Android SDK: /Users/cnordvik/android-sdk-mac_x86
	Supported Android versions:
		2.1   (API level 7)
		2.2   (API level 8)
		2.3   (API level 10)
		3.0   (API level 11)
		3.1   (API level 12)
		3.2   (API level 13)
		4.0   (API level 14)
		4.0.3 (API level 15)
		4.1   (API level 16)
		4.2   (API level 17)
		4.3   (API level 18)
		4.4   (API level 19)
Java SDK: /usr
java version "1.7.0_51"
Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)

Xamarin.Mac
Version:

Build Information
Release ID: 504000240
Git revision: 01786bc67c7024ec33d327ed27e4416d7a846f4e
Build date: 2014-09-17 10:58:48-04
Xamarin addins: 7cd7dfcd6b7b7b53281508954ec080f1cd153ad3

Operating System
Mac OS X 10.10.0
Darwin Christer-Nordviks-MacBook-Pro.local 14.0.0 Darwin Kernel Version 14.0.0
    Mon Aug 25 20:37:34 PDT 2014
    root:xnu-2782.1.1.1.1~1/RELEASE_X86_64 x86_64
Comment 1 Sebastien Pouliot 2014-09-23 20:44:23 UTC
This an actual iOS (no XI or Mono) error message. I've never experienced it myself, but you might be able to find some additional information (e.g. [1]) about it and, with a bit of luck, be able to see/guess how it relates to your code.

Without a symbolicated crash report there's not much we can do to help you figure it out :(

[1] http://openradar.io/13280693
Comment 2 Sebastien Pouliot 2016-05-26 00:04:26 UTC
We have not received the requested information. If you are still experiencing this issue please provide all the requested information and re-open the bug report. Thanks!