Crash with "objc_release + 16", only for iPhone X & early devices running iOS 14.0+

Question

Created Apr ’21

Replies 4

Boosts 0

Views 1.5k

Participants 3

I've got a crash with our app running online, which only happened on user devices iPhone X & earlier series running iOS 14.0+, any help is appreciated.

#0 Thread
SIGSEGV
SEGV_ACCERR

0 libobjc.A.dy libobjc_release + 16
1 libsystem_blocks.dy lib_Block_release + 188
2 UIKitCore -[_UIAfterCACommitBlock run] + 76
3 UIKitCore __runAfterCACommitDeferredBlocks + 296
4 UIKitCore
__cleanUpAfterCAFlushAndRunDeferredBlocks + 200
5 UIKitCore __afterCACommitHandler + 76
6 CoreFoundation
___CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 32
7 CoreFoundation ___CFRunLoopDoObservers + 604
8 CoreFoundation ___CFRunLoopRun + 960
9 CoreFoundation CFRunLoopRunSpecific + 572
10 GraphicsServices GSEventRunModal + 160
11 UIKitCore -[UIApplication _run] + 1052
12 UIKitCore UIApplicationMain + 164
13 MyAPP main (main.m:29)
14 libdyld.dy lib_start + 4

Boost

Answer 1

DTS Engineer OP

Apple

Apr ’21

Please post the full Apple crash report. Use the attachment feature so that formatting is preserved.

4

Answer 2

Lee.Bo OP

Apr ’21

crash log

0

Answer 3

Lee.Bo OP

Apr ’21

@edford i've uploaded the full crash report, please help to diagnose. thank you so much.
crash log

0

Answer 4

msel OP

Jun ’21

Has there been any progress on this front? I seem to be running into the same crash (stack trace below). Any insights into what may be causing this would be helpful.

(libobjc.A.dylib + 0x00023c10)objc_release

(libsystem_blocks.dylib + 0x00001780)_Block_release

(UIKitCore + 0x00fcfd04)-[_UIAfterCACommitBlock run]

(UIKitCore + 0x00b3f7d8)_runAfterCACommitDeferredBlocks

(UIKitCore + 0x00b2eca4)_cleanUpAfterCAFlushAndRunDeferredBlocks

(UIKitCore + 0x00b5fff4)_afterCACommitHandler

(CoreFoundation + 0x00099584)CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION

(CoreFoundation + 0x00093bb4)__CFRunLoopDoObservers

(CoreFoundation + 0x00094150)__CFRunLoopRun

(CoreFoundation + 0x00093814)CFRunLoopRunSpecific

(GraphicsServices + 0x0000356c)GSEventRunModal

(UIKitCore + 0x00b300e4)-[UIApplication _run]

(UIKitCore + 0x00b35660)UIApplicationMain

([REDACTED] -main.m:1😎 main

(libdyld.dylib + 0x0000113c)start

0