StringStyle.swift cause crash

[wenjingjie]

hi, our project got this crash log in firebase when we are using pod 'BonMot', '6.0.0'. seems related to the StringStyle.swift.
please take a look. thanks a lot.

Crashed: com.apple.main-thread
EXC_BAD_ACCESS KERN_PROTECTION_FAILURE 0x00000001ef601f60
Crashed: com.apple.main-thread
0 ??? 0x1ef601f60 (Missing)
1 HLLDriver-SEA 0xdb6e8 StringStyle.attributes.getter + 122 (StringStyle.swift:122)
2 HLLDriver-SEA 0xe45984 LMDFontStyle.attributes.getter + 230 (Fonts.swift:230)
3 HLLDriver-SEA 0xaee304 closure #1 in static UITabBarItem.homeTabBarItem(image:title:) + 33 (UIView+Home.swift:33)
4 HLLDriver-SEA 0xa48b20 closure #1 in HLLTabBarController.setupTabs() + 31 (UIView+Home.swift:31)
5 HLLDriver-SEA 0xa47318 HLLTabBarController.setupTabs() + 2838604 (:2838604)
6 HLLDriver-SEA 0xa47be8 @objc HLLTabBarController.viewDidLoad() + 34 (HLLTabBarController.swift:34)
7 UIKitCore 0x37c7b4 -[UITabBarController initWithNibName:bundle:] + 196
8 HLLDriver-SEA 0xa48164 @objc HLLTabBarController.init(nibName:bundle:) + 2842264 (:2842264)
9 HLLDriver-SEA 0xadd650 RootFlowController.handleFlowEvent(:) + 93 (RootFlowController.swift:93)
10 HLLDriver-SEA 0xaddce8 @objc RootFlowController.handleFlowEvent(:) + 3455516 (:3455516)
11 HLLDriver-SEA 0xf23084 @objc UIResponder.handleFlowEvent(:) + 1240980 (:1240980)
12 HLLDriver-SEA 0xf23084 @objc UIResponder.handleFlowEvent(:) + 1240980 (:1240980)
13 HLLDriver-SEA 0xf23084 @objc UIResponder.handleFlowEvent(:) + 1240980 (:1240980)
14 HLLDriver-SEA 0xf23084 @objc UIResponder.handleFlowEvent(:) + 1240980 (:1240980)
15 HLLDriver-SEA 0xf23084 @objc UIResponder.handleFlowEvent(_:) + 1240980 (:1240980)
16 HLLDriver-SEA 0x9ef3a4 __35-[SplashScreenVC goLoginOrMainPage]_block_invoke.420 + 158 (SplashScreenVC.m:158)
17 UIKitCore 0x1024410 -[UIViewAnimationBlockDelegate _didEndBlockAnimation:finished:context:] + 688
18 UIKitCore 0xff8ba8 -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] + 244
19 UIKitCore 0xff90d8 -[UIViewAnimationState animationDidStop:finished:] + 240
20 QuartzCore 0x171550 CA::Layer::run_animation_callbacks(void*) + 276
21 libdispatch.dylib 0x61298 _dispatch_client_callout + 16
22 libdispatch.dylib 0xfce0 _dispatch_main_queue_callback_4CF$VARIANT$mp + 904
23 CoreFoundation 0x9a998 CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE + 12
24 CoreFoundation 0x94df8 __CFRunLoopRun + 2528
25 CoreFoundation 0x93ed0 CFRunLoopRunSpecific + 572
26 GraphicsServices 0x3570 GSEventRunModal + 160
27 UIKitCore 0xb302d0 -[UIApplication _run] + 1052
28 UIKitCore 0xb3584c UIApplicationMain + 164
29 HLLDriver-SEA 0x48cc main + 36 (main.m:36)
30 libdyld.dylib 0x1140 start + 4

[ZevEisenberg]

Is this crash reproducible? If so, do you have a sample project that reproduces it? Or did you get this as a crash log in the wild? I'm also curious about stack frame 0, which seems to have missing symbols.

[wenjingjie]

Is this crash reproducible? If so, do you have a sample project that reproduces it? Or did you get this as a crash log in the wild? I'm also curious about stack frame 0, which seems to have missing symbols.

thanks for reply, it can not be reproducible, just the crash log from firebase log, the stack frame 0 is missing

[ZevEisenberg]

I had a look at the code at that spot and didn't see anything suspicious. Have you tried updating to BonMot 6.1.1? Also, have you received many reports of this crash? Or just one?

[wenjingjie]

I had a look at the code at that spot and didn't see anything suspicious. Have you tried updating to BonMot 6.1.1? Also, have you received many reports of this crash? Or just one?

yes, just one crash. I will update to BonMot 6.1.1 and keep looking, thanks~~~

[wenjingjie]

hi, we got another crash report. the log is below:

Crashed: com.apple.main-thread
0 libswiftCore.dylib 0x2ee4d4 swift_release + 36
1 HLLDriver-SEA 0xe68e4 destroy for StringStyle + 4366674148 (:4366674148)
2 HLLDriver-SEA 0xef1c8 outlined destroy of StringStyle + 4366709192 (:4366709192)
3 libobjc.A.dylib 0x77d0 object_cxxDestructFromClass(objc_object*, objc_class*) + 112
4 libobjc.A.dylib 0x4858 objc_destructInstance + 88
5 libobjc.A.dylib 0xd7d4 _objc_rootDealloc + 52
6 libobjc.A.dylib 0x26990 _object_remove_associations + 628
7 libobjc.A.dylib 0x4868 objc_destructInstance + 104
8 libobjc.A.dylib 0xd7d4 _objc_rootDealloc + 52
9 UIKitCore 0x2e3af0 + 152
10 UIKitCore 0x1e3ae4 + 936
11 UIKitCore 0x4377d0 + 180
12 libsystem_blocks.dylib 0x1840 _Block_release + 184
13 UIKitCore 0x1dacb0 + 24
14 libsystem_blocks.dylib 0x1840 _Block_release + 184
15 CoreFoundation 0xc350 + 216
16 UIKitCore 0x2aa7e4 + 240
17 UIKitCore 0x17f200 + 244
18 UIKitCore 0x192bc8 + 240
19 QuartzCore 0xc09c4 + 276
20 libdispatch.dylib 0x64094 + 16
21 libdispatch.dylib 0x10d44 + 928
22 libdispatch.dylib 0x10994 + 36
23 CoreFoundation 0x4e0d4 + 12
24 CoreFoundation 0xb5f8 + 2544
25 CoreFoundation 0x1e250 CFRunLoopRunSpecific + 572
26 GraphicsServices 0x1988 GSEventRunModal + 160
27 UIKitCore 0x4e5df8 + 1080
28 UIKitCore 0x27f490 UIApplicationMain + 336
29 HLLDriver-SEA 0x48cc main + 36 (main.m:36)
30 ??? 0x1047844d0 (Missing)