Bug 34267 - libmonosgen-2.0.dylib can't map segments into 16KB pages
Summary: libmonosgen-2.0.dylib can't map segments into 16KB pages
Alias: None
Product: iOS
Classification: Xamarin
Component: Xamarin.iOS.dll ()
Version: XI 9.0 (iOS9)
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: 9.0.2 (iOS9SR1)
Assignee: Rolf Bjarne Kvinge [MSFT]
: 34469 ()
Depends on:
Reported: 2015-09-25 02:07 UTC by Ryoji.Ishikawa
Modified: 2015-10-01 04:03 UTC (History)
3 users (show)

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

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Description Ryoji.Ishikawa 2015-09-25 02:07:18 UTC
First, set the project as follows:
 Configuration: Debug
 Support architectures: ARMv7
 Use the SGen generational garbage collector: Enable
 Enable incremental builds : Enable

And then start debugging on the iPad.
Then the app will not start up by crash.

== Device Log =================================================================

Dyld Error Message:
Dyld Message: Library not loaded: @executable_path/libmonosgen-2.0.dylib
  Referenced from: /var/mobile/Containers/Bundle/Application/55E527BA-5851-41D5-BED3-F0FA76D0D511/Test21.app/Test21
  Reason: no suitable image found.  Did find:
	/var/mobile/Containers/Bundle/Application/55E527BA-5851-41D5-BED3-F0FA76D0D511/Test21.app/libmonosgen-2.0.dylib: can't map segments into 16KB pages
	/private/var/mobile/Containers/Bundle/Application/55E527BA-5851-41D5-BED3-F0FA76D0D511/Test21.app/libmonosgen-2.0.dylib: can't map segments into 16KB pages
  Dyld Version: 369.12

Comment 1 Rolf Bjarne Kvinge [MSFT] 2015-09-25 05:04:21 UTC
Which device are you deploying to?

And can you get your complete version information from Xamarin Studio's about menu (click on the Show Details button)?
Comment 2 Ryoji.Ishikawa 2015-09-25 05:29:43 UTC
I was deployed to iPad Air2 (Model A1566).

== Detail infomation =============================================
Xamarin Studio
Version 5.9.7 (build 9)
Installation UUID: 7a37a89e-52f0-49a6-9608-8e7393150974
	Mono 4.0.4 ((detached/cb6d6b2)
	GTK+ 2.24.23 (Raleigh theme)

	Package version: 400040002

Apple Developer Tools
Xcode 7.0 (8227)
Build 7A220

Not Installed

Version: (Business Edition)
Hash: d8e9592
Branch: master
Build date: 2015-09-18 23:22:05-0400

Version: (Starter Edition)
Android SDK: /Developer/android-sdk-macosx
	Supported Android versions:
		2.3   (API level 10)
		4.0.3 (API level 15)
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 Android Player
Not Installed

Build Information
Release ID: 509070009
Git revision: 31fa64709030b3edb971237780a452a4c69943c4
Build date: 2015-09-17 11:44:37-04
Xamarin addins: b105d33d8cd72911ff2cf3ee0b7715d37e5f19a6

Operating System
Mac OS X 10.10.5
Darwin JPC20150005.local 14.5.0 Darwin Kernel Version 14.5.0
    Wed Jul 29 02:26:53 PDT 2015
    root:xnu-2782.40.9~1/RELEASE_X86_64 x86_64
Comment 3 Rolf Bjarne Kvinge [MSFT] 2015-09-25 08:04:57 UTC
This happens because we build libmonosgen-2.0.dylib with iphoneos-version-min=5.1.1, and iOS 9 will not load dylibs with iphoneos-version-min<8.0.
Comment 4 Rolf Bjarne Kvinge [MSFT] 2015-09-25 08:36:45 UTC

maccore/master: 0e6faeca433ef402b3c3141e74992a45a3991560
Comment 5 Rolf Bjarne Kvinge [MSFT] 2015-09-25 08:39:25 UTC
Correction: iOS 9 will not load dylibs with iphoneos-version-min<7.0
Comment 8 Rolf Bjarne Kvinge [MSFT] 2015-10-01 04:03:04 UTC
*** Bug 34469 has been marked as a duplicate of this bug. ***