App Crashing after going to background sate, no useful information in Crashlogs

Question

Created Dec ’20

Replies 3

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Views 1.6k

Participants 2

I'm starting to see this issue only from iOS 14. My app does not use scheduled background tasks and no code in willResignActive and didEnterbackground Appdelegate methods.

Any insight or help is much appreciated. i've noticed another user facing similar issue here.
URL to similar issue: https://developer.apple.com/forums/thread/662875?login=true&page=1#653227022

P.S: I'm including the crash logs and striking out my app name with ******* for privacy reasons.

Code Block Fatal Exception: NSGenericException0  CoreFoundation                 0x184a3e878 exceptionPreprocess
1  libobjc.A.dylib                0x198f94c50 objc_exception_throw
2  CoreFoundation                 0x184a3e17c -[NSSingleObjectEnumerator initWithObject:collection:]
3  ********                       0x100dbc200 GLA_CREATE_VIEW_PERFORMANCE_STATS
4  ********                       0x100dbc01c GLA_CREATE_VIEW_PERFORMANCE_STATS
5  ******                       0x100e0fbb8 GB_CTRL_ID
6  CoreFoundation                 0x18499b9a0 CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER
7  CoreFoundation                 0x18499b948 _CFXRegistrationPost_block_invoke
8  CoreFoundation                 0x18499aeb0 _CFXRegistrationPost
9  CoreFoundation                 0x18499a870 _CFXNotificationPost
10 Foundation                     0x185c5e4bc -[NSNotificationCenter postNotificationName:object:userInfo:]
11 UIKitCore                      0x1873e6a08 -[UIApplication _deactivateForReason:notify:]
12 UIKitCore                      0x186a47e8c -[_UISceneLifecycleMultiplexer _performBlock:withApplicationOfDeactivationReasons:fromReasons:]
13 UIKitCore                      0x186a482b8 -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]
14 UIKitCore                      0x186a47af4 -[_UISceneLifecycleMultiplexer uiScene:transitionedFromState:withTransitionContext:]
15 UIKitCore                      0x186a50040 186-[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:]_block_invoke
16 UIKitCore                      0x186ec2030 +[BSAnimationSettings(UIKit) tryAnimatingWithSettings:actions:completion:]
17 UIKitCore                      0x186fcdb2c _UISceneSettingsDiffActionPerformChangesWithTransitionContext
18 UIKitCore                      0x186a4fd38 -[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:]
19 UIKitCore                      0x186877bb4 64-[UIScene scene:didUpdateWithDiff:transitionContext:completion:]_block_invoke
20 UIKitCore                      0x186876528 -[UIScene _emitSceneSettingsUpdateResponseForCompletion:afterSceneUpdateWork:]
21 UIKitCore                      0x1868777dc -[UIScene scene:didUpdateWithDiff:transitionContext:completion:]
22 UIKitCore                      0x186eebd0c -[UIApplicationSceneClientAgent scene:handleEvent:withCompletion:]
23 FrontBoardServices             0x193d47d54 -[FBSScene updater:didUpdateSettings:withDiff:transitionContext:completion:]
24 FrontBoardServices             0x193d745c4 94-[FBSWorkspaceScenesClient _queue_updateScene:withSettings:diff:transitionContext:completion:]_block_invoke_2
25 FrontBoardServices             0x193d56560 -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:]
26 FrontBoardServices             0x193d744f0 94-[FBSWorkspaceScenesClient _queue_updateScene:withSettings:diff:transitionContext:completion:]_block_invoke
27 libdispatch.dylib              0x184632db0 _dispatch_client_callout
28 libdispatch.dylib              0x184636738 _dispatch_block_invoke_direct
29 FrontBoardServices             0x193d9b310 FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK
30 FrontBoardServices             0x193d9afa0 -[FBSSerialQueue _targetQueue_performNextIfPossible]
31 FrontBoardServices             0x193d9b4f4 -[FBSSerialQueue _performNextFromRunLoopSource]
32 CoreFoundation                 0x1849ba76c CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION
33 CoreFoundation                 0x1849ba668 CFRunLoopDoSource0
34 CoreFoundation                 0x1849b9960 CFRunLoopDoSources0
35 CoreFoundation                 0x1849b3a8c CFRunLoopRun
36 CoreFoundation                 0x1849b321c CFRunLoopRunSpecific
37 GraphicsServices               0x19ba32784 GSEventRunModal
38 UIKitCore                      0x1873ec200 -[UIApplication _run]
39 UIKitCore                      0x1873f1a74 UIApplicationMain
40 *******                        0x100c76854 main + 18 (main.m:18)
41 libdyld.dylib                  0x1846736c0 start

Boost

Answer 1

DTS Engineer OP

Apple

Dec ’20

I'm including the crash logs and striking out my app name with *******
for privacy reasons.

Please post the full crash report. Use the text attachment feature (the paperclip icon) to avoid cluttering up the timeline. And when you redact the crash report don’t use stars but instead substitute dummy values, using different dummy values for different real values. That is:

Where the crash report is showing your bundle ID replace it with something that looks like a bundle ID.
And where it’s showing your main executable name place it with something that looks like a main executable name.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@apple.com"

0

Answer 2

SanY OP

Dec ’20

Crash logs

Hi eskimo,
I've attached the crash logs as per your direction.

0

Answer 3

SanY OP

Jan ’21

Hi eskimo,
did you get a chance to look at the logs? if yes, were you able to reach to any conclusion as to why the app was crashing?

0