iOS may run out of memory while loading dynamic libraries.

Originator:eloy.de.enige
Number:rdar://25126016 Date Originated:12-Mar-2016
Status:Duplicate/24278648 Resolved:
Product:iOS Product Version:9.1
Classification:Serious bug Reproducible:Sometimes
 
Summary:
* A colleague ran into a situation where the app would crash on launch. Important to note is that she was _also_ seeing it with other apps, such as LinkedIn.app.
* A restart of her device ‘fixed’ the issue.

## Info about the errors

```
Dyld Error Message:
Dyld Message: Library not loaded: @rpath/CocoaLumberjack.framework/CocoaLumberjack
  Referenced from: /var/mobile/Containers/Bundle/Application/D693664B-F6D0-43CB-A839-358E15CAF9E6/Artsy.app/Artsy
  Reason: no suitable image found.  Did find:
	/private/var/mobile/Containers/Bundle/Application/D693664B-F6D0-43CB-A839-358E15CAF9E6/Artsy.app/Frameworks/CocoaLumberjack.framework/CocoaLumberjack:
	mremap_encrypted() => -1, errno=12 for /private/var/mobile/Containers/Bundle/Application/D693664B-F6D0-43CB-A839-358E15CAF9E6/Artsy.app/Frameworks/CocoaLumberjack.framework/CocoaLumberjack

	/private/var/mobile/Containers/Bundle/Application/D693664B-F6D0-43CB-A839-358E15CAF9E6/Artsy.app/Frameworks/CocoaLumberjack.framework/CocoaLumberjack:
	mremap_encrypted() => -1, errno=12 for /private/var/mobile/Containers/Bundle/Application/D693664B-F6D0-43CB-A839-358E15CAF9E6/Artsy.app/Frameworks/CocoaLumberjack.framework/CocoaLumberjack

	/private/var/mobile/Containers/Bundle/Application/D693664B-F6D0-43CB-A839-358E15CAF9E6/Artsy.app/Frameworks/C
  Dyld Version: 370.1
```

* The error message and codes are always the same.
* The error is not specific to a framework, it happens with various frameworks.
* It appears to have started from iOS 9.1 and up.

Based on retracing steps through dyld/xnu, the error numbers appear to be `ERESTART` (-1) and `ENOMEM` (12).

Steps to Reproduce:
We have been unable to reproduce the issue in house.

Expected Results:
iOS clears memory (e.g. via jetsam) and loads the app.

Actual Results:
Crashes at startup.

Version:
iOS 9.1

Notes:
You can find a more comprehensive version of this report on https://github.com/artsy/eigen/issues/1246.

Configuration:
Any iOS 9 compatible device.

Comments

Still happening on 9.3

Apple had mentioned fixing this on 9.3, however signs are pointing to this still being an issue

By nobrien at March 29, 2016, 5:37 p.m. (reply...)

Where did they mention this?

By eloy.de.enige at April 1, 2016, 11:03 a.m. (reply...)

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