iOS:从 Crashlytics 了解 SIGABRT 崩溃
<p><p>所以我收到了我的 iOS 应用程序的 Crashlytics 崩溃报告。对于某些用户，该应用程序一直在崩溃，并在崩溃日志中显示 SIGABRT。 </p>
<p>无数小时以来，我一直试图找出导致此错误的原因，但由于该错误的罕见性(大约 1-2% 的用户)，我无法重现该错误，并且由于来自 Crashlytics 的信息量有限，我一直找不到这个错误的根本原因。</p>
<p>应用程序的部署目标是 iOS 7，所有尺寸的 iOS 10+ 设备都遇到崩溃(我不确定 iOS 9、8 或 7 是否也遇到错误 - Crashlytics 仅显示 iOS 上的崩溃10+)</p>
<p>这是堆栈跟踪:</p>
<pre><code>CRASH_INFO_ENTRY_1
*** error for object 0x17127f4c0: Invalid pointer dequeued from free list
CRASH_INFO_ENTRY_0
abort() called
Crashed: com.apple.main-thread
SIGABRT ABORT 0x000000018e2ea014
#0. Crashed: com.apple.main-thread
0libsystem_kernel.dylib 0x18f6ca014 __pthread_kill + 8
1libsystem_pthread.dylib 0x18f791460 pthread_kill + 112
2libsystem_c.dylib 0x18f63e3f4 abort + 140
3libsystem_malloc.dylib 0x18f70ea38
_nano_vet_and_size_of_live + 330
4libsystem_malloc.dylib 0x18f710bf0
_nano_malloc_check_clear + 392
5libsystem_malloc.dylib 0x18f70fbb4 nano_calloc + 80
6libsystem_malloc.dylib 0x18f701180 malloc_zone_calloc + 152
7libsystem_malloc.dylib 0x18f7010c4 calloc + 40
8libobjc.A.dylib 0x18f131cfc cache_t::reallocate(unsigned int, unsigned int) + 52
9libobjc.A.dylib 0x18f1321fc cache_fill + 216
10 libobjc.A.dylib 0x18f13cd00 lookUpImpOrForward + 412
11 libobjc.A.dylib 0x18f147258 _objc_msgSend_uncached + 56
12 UIKit 0x1967274e8 - + 13964
13 Champion 0x100097bf4 - (MatchdayComposeController.m:427)
14 CoreData 0x192abfe28 __82-_block_invoke + 4760
15 CoreData 0x192abeb80 - + 124
16 CoreFoundation 0x19069622c __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 20
17 CoreFoundation 0x190695930 _CFXRegistrationPost + 400
18 CoreFoundation 0x1906956ac ___CFXNotificationPost_block_invoke + 60
19 CoreFoundation 0x190704b9c - + 1504
20 CoreFoundation 0x1905d7bf4 _CFXNotificationPost + 376
21 Foundation 0x1910de6bc - + 68
22 CoreData 0x1929eed1c - + 724
23 CoreData 0x192a75170 - + 1336
24 CoreData 0x1929ed338 - + 2116
25 CoreData 0x1929ebe3c - + 416
26 Champion 0x10008e2ac - (AppDelegate.m:263)
27 Champion 0x10009d1d4 + (Globals.m:157)
28 Champion 0x10006ee4c - (EntitySyncClient.m:232)
29 Champion 0x1000690a0 - (MatchController.m:994)
30 UIKit 0x1965799a0 - + 96
31 UIKit 0x196579920 - + 80
32 UIKit 0x196563dd0 - + 452
33 UIKit 0x196e62c44 - + 540
34 UIKit 0x1967b965c - + 116
35 UIKit 0x1967b9894 - + 344
36 UIKit 0x196ce6878 - + 188
37 UIKit 0x196ce6a50 - + 28
38 UIKit 0x196857abc - + 132
39 UIKit 0x1966ed2cc - + 332
40 UIKit 0x1966ece08 - + 2356
41 QuartzCore 0x1938ff640 CA::Display::DisplayLinkItem::dispatch(unsigned long long) + 44
42 QuartzCore 0x1938ff4ec CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 444
43 IOKit 0x190968570 IODispatchCalloutFromCFMessage + 372
44 CoreFoundation 0x19069256c __CFMachPortPerform + 180
45 CoreFoundation 0x1906aa934 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 56
46 CoreFoundation 0x1906aa0e8 __CFRunLoopDoSource1 + 436
47 CoreFoundation 0x1906a7bcc __CFRunLoopRun + 1840
48 CoreFoundation 0x1905d6048 CFRunLoopRunSpecific + 444
49 GraphicsServices 0x192059198 GSEventRunModal + 180
50 UIKit 0x1965af818 - + 684
51 UIKit 0x1965aa550 UIApplicationMain + 208
52 Champion 0x1000b082c main (main.m:14)
53 libdispatch.dylib 0x18f5b85b8 (Missing)
</code></pre>
<p>我将非常感谢任何形式的帮助。如果我能得到任何重现 Crashlytics 错误的指针，我也将不胜感激。</p>
<p><strong>用代码更新问题</strong></p>
<p>在<code>controllerDidChangeContent:</code>中主要是table view正在结束更新。</p>
<pre><code>- (void)controllerDidChangeContent:(NSFetchedResultsController *)controller {
;
if(controller.fetchedObjects.count == 0){
self.showsNoMatchesHint = YES;
}
else{
self.showsNoMatchesHint = NO;
}
}
</code></pre></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>鉴于您的程序的最后一口气是在 _endCellAnimationsWithContext 中，并且这些类型的动画通常在单元格编辑完成时发生，我会在该特定表完成单元格编辑操作时调查问题。那里还有一个选择器 View 和一个通知，所以应该缩小一些。祝你好运。</p></p>
<p style="font-size: 20px;">关于iOS:从 Crashlytics 了解 SIGABRT 崩溃，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/43741338/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/43741338/
</a>
</p>
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