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https://issues.apache.org/jira/browse/CB-9769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15887573#comment-15887573
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jcesarmobile commented on CB-9769:
----------------------------------
Yes, the issue is caused by some 3rd party keyboards. It has nothing to do with
Cordova. It can make regular webviews crash too.
> Application modifying the autolayout engine from a background thread causes
> crash on keyboard focus
> ---------------------------------------------------------------------------------------------------
>
> Key: CB-9769
> URL: https://issues.apache.org/jira/browse/CB-9769
> Project: Apache Cordova
> Issue Type: Bug
> Components: iOS
> Reporter: Ryan England
> Labels: keyboard, triaged
>
> Hi there,
> We're getting issues when keyboard focus is given to a textbox within a form.
> Upon clicking the form field, the entire app immediately crashes and the
> following information is displayed in Xcode:
> 2015-10-08 18:47:49.092 BudiPay[527:113011] This application is modifying the
> autolayout engine from a background thread, which can lead to engine
> corruption and weird crashes. This will cause an exception in a future
> release.
> Stack:(
> 0 CoreFoundation 0x0000000184608f74 <redacted> +
> 148
> 1 libobjc.A.dylib 0x0000000199af7f80
> objc_exception_throw + 56
> 2 CoreFoundation 0x0000000184608ea4 <redacted> + > 0
> 3 Foundation 0x00000001856225d8 <redacted> +
> 88
> 4 Foundation 0x00000001854a4a1c <redacted> +
> 36
> 5 UIKit 0x0000000189c6393c <redacted> +
> 64
> 6 UIKit 0x0000000189c64454 <redacted> +
> 244
> 7 UIKit 0x0000000189c80f28 <redacted> +
> 108
> 8 UIKit 0x000000018a38a77c <redacted> +
> 268
> 9 UIKit 0x0000000189e61fb0 <redacted> +
> 176
> 10 UIKit 0x0000000189e51098 <redacted> +
> 52
> 11 UIKit 0x0000000189b5aff0 <redacted> +
> 644
> 12 QuartzCore 0x0000000189361f14 <redacted> +
> 148
> 13 QuartzCore 0x000000018935cb20 <redacted> +
> 292
> 14 QuartzCore 0x000000018935c9e0 <redacted> +
> 32
> 15 QuartzCore 0x000000018935c07c <redacted> +
> 252
> 16 QuartzCore 0x000000018935bdd0 <redacted> +
> 516
> 17 QuartzCore 0x00000001893aeb00 <redacted> +
> 592
> 18 IOKit 0x0000000185896018
> IODispatchCalloutFromCFMessage + 372
> 19 CoreFoundation 0x00000001845aa8e0 <redacted> +
> 180
> 20 CoreFoundation 0x00000001845c0cdc <redacted> +
> 56
> 21 CoreFoundation 0x00000001845c0414 <redacted> +
> 436
> 22 CoreFoundation 0x00000001845be16c <redacted> +
> 1800
> 23 CoreFoundation 0x00000001844ecdc0
> CFRunLoopRunSpecific + 384
> 24 WebCore 0x0000000196a25aa0 <redacted> +
> 456
> 25 libsystem_pthread.dylib 0x000000019a4fbb3c <redacted> +
> 156
> 26 libsystem_pthread.dylib 0x000000019a4fbaa0 <redacted> + > 0
> 27 libsystem_pthread.dylib 0x000000019a4f9030 thread_start
> + 4
> )
> 2015-10-08 18:47:49.096 BudiPay[527:113011] This application is modifying the
> autolayout engine from a background thread, which can lead to engine
> corruption and weird crashes. This will cause an exception in a future
> release.
> Stack:(
> 0 CoreFoundation 0x0000000184608f74 <redacted> +
> 148
> 1 libobjc.A.dylib 0x0000000199af7f80
> objc_exception_throw + 56
> 2 CoreFoundation 0x0000000184608ea4 <redacted> + > 0
> 3 Foundation 0x00000001856225d8 <redacted> +
> 88
> 4 Foundation 0x00000001854a8f3c <redacted> +
> 56
> 5 Foundation 0x00000001854a4afc <redacted> +
> 260
> 6 UIKit 0x0000000189c6393c <redacted> +
> 64
> 7 UIKit 0x0000000189c64454 <redacted> +
> 244
> 8 UIKit 0x0000000189c80f28 <redacted> +
> 108
> 9 UIKit 0x000000018a38a77c <redacted> +
> 268
> 10 UIKit 0x0000000189e61fb0 <redacted> +
> 176
> 11 UIKit 0x0000000189e51098 <redacted> +
> 52
> 12 UIKit 0x0000000189b5aff0 <redacted> +
> 644
> 13 QuartzCore 0x0000000189361f14 <redacted> +
> 148
> 14 QuartzCore 0x000000018935cb20 <redacted> +
> 292
> 15 QuartzCore 0x000000018935c9e0 <redacted> +
> 32
> 16 QuartzCore 0x000000018935c07c <redacted> +
> 252
> 17 QuartzCore 0x000000018935bdd0 <redacted> +
> 516
> 18 QuartzCore 0x00000001893aeb00 <redacted> +
> 592
> 19 IOKit 0x0000000185896018
> IODispatchCalloutFromCFMessage + 372
> 20 CoreFoundation 0x00000001845aa8e0 <redacted> +
> 180
> 21 CoreFoundation 0x00000001845c0cdc <redacted> +
> 56
> 22 CoreFoundation 0x00000001845c0414 <redacted> +
> 436
> 23 CoreFoundation 0x00000001845be16c <redacted> +
> 1800
> 24 CoreFoundation 0x00000001844ecdc0
> CFRunLoopRunSpecific + 384
> 25 WebCore 0x0000000196a25aa0 <redacted> +
> 456
> 26 libsystem_pthread.dylib 0x000000019a4fbb3c <redacted> +
> 156
> 27 libsystem_pthread.dylib 0x000000019a4fbaa0 <redacted> + > 0
> 28 libsystem_pthread.dylib 0x000000019a4f9030 thread_start
> + 4
> )
> 2015-10-08 18:47:49.097 BudiPay[527:113011] *** Assertion failure in
> -[UIApplication _cachedSystemAnimationFenceCreatingIfNecessary:],
> /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3505.17/UIApplication.m:1697
> 2015-10-08 18:47:49.098 BudiPay[527:113011] *** Terminating app due to
> uncaught exception 'NSInternalInconsistencyException', reason: 'accessing
> _cachedSystemAnimationFence requires the main thread'
> *** First throw call stack:
> (0x184608f5c 0x199af7f80 0x184608e2c 0x1854f7f3c 0x189dfb0cc 0x189dfb190
> 0x189e4d3b0 0x18a2fb788 0x18a2f613c 0x189e5dfac 0x189bbb698 0x189c66a24
> 0x189b7669c 0x1844ffab0 0x1844ff9a8 0x189b653cc 0x189c66b6c 0x189e621f4
> 0x189b5aff0 0x189361f14 0x18935cb20 0x18935c9e0 0x18935c07c 0x18935bdd0
> 0x1893aeb00 0x185896018 0x1845aa8e0 0x1845c0cdc 0x1845c0414 0x1845be16c
> 0x1844ecdc0 0x196a25aa0 0x19a4fbb3c 0x19a4fbaa0 0x19a4f9030)
> libc++abi.dylib: terminating with uncaught exception of type NSException
> (lldb)
> In the xcode window when connected to the process:
> libsystem_kernel.dylib`__pthread_kill:
> 0x19a4331d8 <+0>: movz x16, #0x148
> 0x19a4331dc <+4>: svc #0x80
> -> 0x19a4331e0 <+8>: b.lo 0x19a4331f8 ; <+32>
> 0x19a4331e4 <+12>: stp x29, x30, [sp, #-16]!
> 0x19a4331e8 <+16>: mov x29, sp
> 0x19a4331ec <+20>: bl 0x19a41a330 ; cerror_nocancel
> 0x19a4331f0 <+24>: mov sp, x29
> 0x19a4331f4 <+28>: ldp x29, x30, [sp], #16
> 0x19a4331f8 <+32>: ret
> We're using the Ionic framework, but they have referred us here from there:
> https://github.com/driftyco/ionic/issues/4402
> Seems like a number of people receiving the same issue. Apologies if I
> haven't provided enough information - happy to field questions or help to
> debug further. (Have tried to format the above as code, but Jira won't let me)
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