"__dnssd_client" prefix function in crash callstack

Question

Hi team, We found that the app reported a lot of crash stacks, and in the the stack there is the libdns_services library feature, but we could not find the reason. These issues have only emerged since iOS 16 and are growing, can you provide some clues or provide some solutions? Thanks! Crash backtrace can be seen as follows.

Hardware Model: iPhone15,3
Process: *** [37556]
Path: /private/var/containers/Bundle/Application/58356156-D991-4CFB-868D-62438B018E69/***.app
Identifier: com.***.***
Version: 8.0.30.51125
Code Type: ARM-64 (Native)
Parent Process:  [1]

Date/Time: 2023-09-22 18:46:39.044 +0800
OS Version: 16.6.1 (20G81)
Report Version: 104

SDK start time: 2023-09-22 18:21:18
RDM SDK Version: 2.7.27.1
RDM user id : 15974378
RDM DeviceId: 05344B39-9C18-4813-AEBB-369D87639815
RDM APP KEY: 7c35edbf90

Last Exception :
0  libxpc.dylib                   0x00000001e87e14cc __xpc_dictionary_apply_node_f + 132
1  libxpc.dylib                   0x00000001e87e14e4 __xpc_dictionary_apply_node_f + 156
2  libxpc.dylib                   0x00000001e87e143c _xpc_dictionary_apply_f + 64
3  libxpc.dylib                   0x00000001e87e97c4 __xpc_serializer_pack + 108
4  libxpc.dylib                   0x00000001e87db014 __xpc_connection_pack_message + 120
5  libxpc.dylib                   0x00000001e87dc064 _xpc_connection_send_message_with_reply + 176
6  libdns_services.dylib          0x00000001e8881e10 __dnssd_client_send_getaddrinfo_command + 256
7  libdns_services.dylib          0x00000001e8881fc4 ____dnssd_client_activate_getaddrinfo_async_block_invoke + 348
8  libdispatch.dylib              0x000000018fe1e320 __dispatch_call_block_and_release + 32
9  libdispatch.dylib              0x000000018fe1feac __dispatch_client_callout + 20
10 libdispatch.dylib              0x000000018fe27534 __dispatch_lane_serial_drain + 668
11 libdispatch.dylib              0x000000018fe280a4 __dispatch_lane_invoke + 384
12 libdispatch.dylib              0x000000018fe32cdc __dispatch_workloop_worker_thread + 648
13 libsystem_pthread.dylib        0x00000001e8789ddc __pthread_wqthread + 288
------

Exception Type: SIGSEGV SEGV_ACCERR
Exception Codes: fault addr: 0x000000000000001e
Crashed Thread: 5 

Thread 0
0  libsystem_kernel.dylib         0x00000001c790eca4 _mach_msg2_trap + 8
1  libsystem_kernel.dylib         0x00000001c7921b74 _mach_msg2_internal + 80
2  libsystem_kernel.dylib         0x00000001c7921e4c _mach_msg_overwrite + 540
3  libsystem_kernel.dylib         0x00000001c790f1e8 _mach_msg + 24
4  libdispatch.dylib              0x000000018fe3b20c __dispatch_mach_send_and_wait_for_reply + 548
5  libdispatch.dylib              0x000000018fe3b59c _dispatch_mach_send_with_result_and_wait_for_reply + 60
6  libxpc.dylib                   0x00000001e87dc218 _xpc_connection_send_message_with_reply_sync + 240
7  Foundation                     0x0000000182ca3f18 ___NSXPCCONNECTION_IS_WAITING_FOR_A_SYNCHRONOUS_REPLY__ + 16
8  Foundation                     0x0000000182c372c4 -[NSXPCConnection _sendInvocation:orArguments:count:methodSignature:selector:withProxy:] + 2192
9  CoreFoundation                 0x000000018896eea8 ____forwarding___ + 1016
10 CoreFoundation                 0x00000001889d5900 __CF_forwarding_prep_0 + 96
11 CoreServices                   0x00000001887da79c ___56-[LSApplicationWorkspace deviceIdentifierForAdvertising]_block_invoke + 264
12 CoreServices                   0x000000018879f7f8 __LSRetryForConnectionInterrupted + 56
13 CoreServices                   0x00000001887da62c -[LSApplicationWorkspace deviceIdentifierForAdvertising] + 160
14 AdSupport                      0x00000001f8bae950 -[ASIdentifierManager advertisingIdentifier] + 156
15 ***                     0x0000000100f307fc -[QRASIdentifierAlertManager advertisingIdentifier](QRASIdentifierAlertManager.m:51)
16 ***                     0x00000001010b9cc8 +[ASIUtil addIdfaForHeader:](ASIUtil.m:77)
17 ***                     0x00000001010bace8 +[ASIUtil addRequestHeaderExcludeAuthInfo:ignoreFeedFlow:](ASIUtil.m:328)
18 ***                     0x00000001010bb228 +[ASIUtil addRequestHeader:](ASIUtil.m:399)
19 ***                     0x00000001016daf08 -[QRCommunityMessageCenterManager refreshNoReadMessageNum](QRCommunityMessageCenterManager.m:288)
20 Foundation                     0x0000000182c84180 ___NSFireTimer + 96
21 CoreFoundation                 0x0000000188a1a624 ___CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 32
22 CoreFoundation                 0x00000001889d7f4c ___CFRunLoopDoTimer + 940
23 CoreFoundation                 0x000000018897d71c ___CFRunLoopDoTimers + 288
24 CoreFoundation                 0x00000001889c94d4 ___CFRunLoopRun + 1852
25 CoreFoundation                 0x00000001889ce3ec _CFRunLoopRunSpecific + 612
26 GraphicsServices               0x00000001c3ee435c _GSEventRunModal + 164
27 UIKitCore                      0x000000018ad5af58 -[UIApplication _run] + 888
28 UIKitCore                      0x000000018ad5abbc _UIApplicationMain + 340
29 ***                     0x0000000102c6bbb8 pld_UIApplicationMain(once.h:87)
30 ***                     0x0000000102c98314 qrapm_UIApplicationMain(once.h:87)
31 ***                     0x000000010028677c main(main.m:45)
32 dyld                           0x00000001a7f00dec 0x00000001a7eeb000 + 89580

Thread 1
0  libsystem_kernel.dylib         0x00000001c791031c ___getdirentries64 + 8
1  libsystem_c.dylib              0x000000018fe6cd64 __readdir_unlocked + 208
2  libsystem_c.dylib              0x000000018fe6cbd4 _readdir_r + 76
3  Foundation                     0x0000000182c50928 -[NSFileManager directoryContentsAtPath:matchingExtension:options:keepExtension:error:] + 392
4  Foundation                     0x0000000182c50724 +[NSAllDescendantPathsEnumerator newWithPath:prepend:attributes:cross:depth:] + 84
5  Foundation                     0x0000000182c6ef90 -[NSAllDescendantPathsEnumerator nextObject] + 444
6  ***                     0x000000010106f25c +[ImportManager checkNeedUpdate](ImportManager.m:1170)
7  ***                     0x0000000101be50c0 __58-[QRBookShelfViewController checkImportInBackgroundThread]_block_invoke(QRBookShelfViewController.m:2507)
8  libdispatch.dylib              0x000000018fe1e320 __dispatch_call_block_and_release + 32
9  libdispatch.dylib              0x000000018fe1feac __dispatch_client_callout + 20
10 libdispatch.dylib              0x000000018fe27534 __dispatch_lane_serial_drain + 668
11 libdispatch.dylib              0x000000018fe280a4 __dispatch_lane_invoke + 384
12 libdispatch.dylib              0x000000018fe32cdc __dispatch_workloop_worker_thread + 648
13 libsystem_pthread.dylib        0x00000001e8789ddc __pthread_wqthread + 288

Debugging

360

Posted by

songlinhe

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Answer 1


Thread 2 Name: com.apple.uikit.eventfetch-thread
0  libsystem_kernel.dylib         0x00000001c790eca4 _mach_msg2_trap + 8
1  libsystem_kernel.dylib         0x00000001c7921b74 _mach_msg2_internal + 80
2  libsystem_kernel.dylib         0x00000001c7921e4c _mach_msg_overwrite + 540
3  libsystem_kernel.dylib         0x00000001c790f1e8 _mach_msg + 24
4  CoreFoundation                 0x00000001889c8024 ___CFRunLoopServiceMachPort + 160
5  CoreFoundation                 0x00000001889c9250 ___CFRunLoopRun + 1208
6  CoreFoundation                 0x00000001889ce3ec _CFRunLoopRunSpecific + 612
7  Foundation                     0x0000000182c42fb4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212
8  Foundation                     0x0000000182c42e9c -[NSRunLoop(NSRunLoop) runUntilDate:] + 64
9  UIKitCore                      0x000000018ae8dcc8 -[UIEventFetcher threadMain] + 416
10 Foundation                     0x0000000182c5c524 ___NSThread__start__ + 716
11 libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 3 Name: com.apple.NSURLConnectionLoader
0  libsystem_kernel.dylib         0x00000001c790eca4 _mach_msg2_trap + 8
1  libsystem_kernel.dylib         0x00000001c7921b74 _mach_msg2_internal + 80
2  libsystem_kernel.dylib         0x00000001c7921e4c _mach_msg_overwrite + 540
3  libsystem_kernel.dylib         0x00000001c790f1e8 _mach_msg + 24
4  CoreFoundation                 0x00000001889c8024 ___CFRunLoopServiceMachPort + 160
5  CoreFoundation                 0x00000001889c9250 ___CFRunLoopRun + 1208
6  CoreFoundation                 0x00000001889ce3ec _CFRunLoopRunSpecific + 612
7  CFNetwork                      0x0000000189bb96f0 __CFURLStorageSessionDisableCache + 60900
8  Foundation                     0x0000000182c5c524 ___NSThread__start__ + 716
9  libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 4
0  libsystem_kernel.dylib         0x00000001c790f1ac ___workq_kernreturn + 8
1  libsystem_pthread.dylib        0x00000001e8789e28 __pthread_wqthread + 364

Thread 5
0  libxpc.dylib                   0x00000001e87e14cc __xpc_dictionary_apply_node_f + 132
1  libxpc.dylib                   0x00000001e87e14e4 __xpc_dictionary_apply_node_f + 156
2  libxpc.dylib                   0x00000001e87e143c _xpc_dictionary_apply_f + 64
3  libxpc.dylib                   0x00000001e87e97c4 __xpc_serializer_pack + 108
4  libxpc.dylib                   0x00000001e87db014 __xpc_connection_pack_message + 120
5  libxpc.dylib                   0x00000001e87dc064 _xpc_connection_send_message_with_reply + 176
6  libdns_services.dylib          0x00000001e8881e10 __dnssd_client_send_getaddrinfo_command + 256
7  libdns_services.dylib          0x00000001e8881fc4 ____dnssd_client_activate_getaddrinfo_async_block_invoke + 348
8  libdispatch.dylib              0x000000018fe1e320 __dispatch_call_block_and_release + 32
9  libdispatch.dylib              0x000000018fe1feac __dispatch_client_callout + 20
10 libdispatch.dylib              0x000000018fe27534 __dispatch_lane_serial_drain + 668
11 libdispatch.dylib              0x000000018fe280a4 __dispatch_lane_invoke + 384
12 libdispatch.dylib              0x000000018fe32cdc __dispatch_workloop_worker_thread + 648
13 libsystem_pthread.dylib        0x00000001e8789ddc __pthread_wqthread + 288

Thread 6
0  libsystem_kernel.dylib         0x00000001c790f578 ___psynch_cvwait + 8
1  libsystem_pthread.dylib        0x00000001e8791078 __pthread_cond_wait + 1232
2  libc++.1.dylib                 0x0000000196fa8ef8 std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 28
3  ***                     0x0000000102698948 ***::HandlerThread::run() + 232
4  ***                     0x000000010269973c void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, std::__1::function<void ()> > >(void*) + 56
5  libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 7
0  libsystem_kernel.dylib         0x00000001c790f578 ___psynch_cvwait + 8
1  libsystem_pthread.dylib        0x00000001e8791078 __pthread_cond_wait + 1232
2  ***                     0x00000001033eb054 Condition::wait(BaseScopedLock<Mutex>&, long)(condition.h:73)
3  ***                     0x00000001033eaf0c Condition::wait(long)(condition.h:94)
4  ***                     0x00000001033e8a08 __async_log_thread()(appender.cc:619)
5  ***                     0x00000001033ebf68 Thread::start_routine(void*)(thread.h:412)
6  libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 8 Name: anna.script
0  libsystem_kernel.dylib         0x00000001c790eca4 _mach_msg2_trap + 8
1  libsystem_kernel.dylib         0x00000001c7921b74 _mach_msg2_internal + 80
2  libsystem_kernel.dylib         0x00000001c7921e4c _mach_msg_overwrite + 540
3  libsystem_kernel.dylib         0x00000001c790f1e8 _mach_msg + 24
4  CoreFoundation                 0x00000001889c8024 ___CFRunLoopServiceMachPort + 160
5  CoreFoundation                 0x00000001889c9250 ___CFRunLoopRun + 1208
6  CoreFoundation                 0x00000001889ce3ec _CFRunLoopRunSpecific + 612
7  Foundation                     0x0000000182c42fb4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212
8  ***                     0x0000000101edbb64 closure #1 () -> () in static Anna.AsyncShadowContext.(scriptThreadStart in _25BF419BF773CFA796804448B24ABD43)(Anna.ThreadContext) -> ()(AsyncShadowContext.swift:77)
9  ***                     0x0000000101edbbe8 @objc static Anna.AsyncShadowContext.(scriptThreadStart in _25BF419BF773CFA796804448B24ABD43)(Anna.ThreadContext) -> ()(AsyncShadowContext.swift:67)
10 Foundation                     0x0000000182c5c524 ___NSThread__start__ + 716
11 libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 9 Name: RaftMonitor.Global
0  libsystem_kernel.dylib         0x00000001c790eca4 _mach_msg2_trap + 8
1  libsystem_kernel.dylib         0x00000001c7921b74 _mach_msg2_internal + 80
2  libsystem_kernel.dylib         0x00000001c7921e4c _mach_msg_overwrite + 540
3  libsystem_kernel.dylib         0x00000001c790f1e8 _mach_msg + 24
4  CoreFoundation                 0x00000001889c8024 ___CFRunLoopServiceMachPort + 160
5  CoreFoundation                 0x00000001889c9250 ___CFRunLoopRun + 1208
6  CoreFoundation                 0x00000001889ce3ec _CFRunLoopRunSpecific + 612
7  CoreFoundation                 0x0000000188a10ea4 _CFRunLoopRun + 64
8  Foundation                     0x0000000182c5c524 ___NSThread__start__ + 716
9  libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Posted by

songlinhe

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Answer 2


Thread 10
0  libsystem_kernel.dylib         0x00000001c790f1ac ___workq_kernreturn + 8
1  libsystem_pthread.dylib        0x00000001e8789e28 __pthread_wqthread + 364

Thread 11 Name: RaftMonitor.MemoryMonitor
0  libsystem_kernel.dylib         0x00000001c790eca4 _mach_msg2_trap + 8
1  libsystem_kernel.dylib         0x00000001c7921b74 _mach_msg2_internal + 80
2  libsystem_kernel.dylib         0x00000001c7921e4c _mach_msg_overwrite + 540
3  libsystem_kernel.dylib         0x00000001c790f1e8 _mach_msg + 24
4  CoreFoundation                 0x00000001889c8024 ___CFRunLoopServiceMachPort + 160
5  CoreFoundation                 0x00000001889c9250 ___CFRunLoopRun + 1208
6  CoreFoundation                 0x00000001889ce3ec _CFRunLoopRunSpecific + 612
7  Foundation                     0x0000000182c42fb4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212
8  ***                     0x00000001026142a0 -[RMAppActivityTracker monitorThreadMain](RMAppActivityTracker.mm:0)
9  Foundation                     0x0000000182c5c524 ___NSThread__start__ + 716
10 libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 12 Name: io.jiguang.hxhg.cache
0  libsystem_kernel.dylib         0x00000001c790eca4 _mach_msg2_trap + 8
1  libsystem_kernel.dylib         0x00000001c7921b74 _mach_msg2_internal + 80
2  libsystem_kernel.dylib         0x00000001c7921e4c _mach_msg_overwrite + 540
3  libsystem_kernel.dylib         0x00000001c790f1e8 _mach_msg + 24
4  CoreFoundation                 0x00000001889c8024 ___CFRunLoopServiceMachPort + 160
5  CoreFoundation                 0x00000001889c9250 ___CFRunLoopRun + 1208
6  CoreFoundation                 0x00000001889ce3ec _CFRunLoopRunSpecific + 612
7  CoreFoundation                 0x0000000188a10ea4 _CFRunLoopRun + 64
8  ***                     0x0000000101e79078 +[JCORECacheThread run](JCORECacheThread.m:32)
9  Foundation                     0x0000000182c5c524 ___NSThread__start__ + 716
10 libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 13 Name: org.hxhg.jiguang.thread
0  libobjc.A.dylib                0x00000001819d68ac _objc_msgSend + 172
1  Foundation                     0x0000000182c2c3ec -[NSString(NSStringOtherEncodings) dataUsingEncoding:allowLossyConversion:] + 284
2  Foundation                     0x0000000182c2c1e0 +[_NSJSONReader validForJSON:depth:allowFragments:] + 456
3  Foundation                     0x0000000182c2bfd4 ___51+[_NSJSONReader validForJSON:depth:allowFragments:]_block_invoke + 92
4  CoreFoundation                 0x000000018896269c ___NSDICTIONARY_IS_CALLING_OUT_TO_A_BLOCK__ + 24
5  CoreFoundation                 0x00000001889eb0f0 -[__NSDictionaryM enumerateKeysAndObjectsWithOptions:usingBlock:] + 212
6  Foundation                     0x0000000182c2c0d8 +[_NSJSONReader validForJSON:depth:allowFragments:] + 192
7  Foundation                     0x000000018318edf0 ___51+[_NSJSONReader validForJSON:depth:allowFragments:]_block_invoke_2 + 60
8  CoreFoundation                 0x00000001889591cc ___NSARRAY_IS_CALLING_OUT_TO_A_BLOCK__ + 24
9  CoreFoundation                 0x0000000188974824 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 196
10 Foundation                     0x0000000182c2c158 +[_NSJSONReader validForJSON:depth:allowFragments:] + 320
11 ***                     0x0000000101e593b4 +[JCOREUtilities jsonToData:](JCOREUtilities.m:1288)
12 ***                     0x0000000101e4b8f8 -[JCORELargeCache write:completion:](JCORELargeCache.m:64)
13 ***                     0x0000000101e5f0bc +[JCORECacheController write:](JCORECacheController.m:165)
14 ***                     0x0000000101e51d2c +[JCORECache write:completion:](JCORECache.m:94)
15 ***                     0x0000000101e39a38 -[JCORECacheChannel write:](JCORECacheChannel.m:254)
16 ***                     0x0000000101e392f0 +[JCORECacheChannel write:](JCORECacheChannel.m:22)
17 ***                     0x0000000101e47050 +[JCOREFCCache setObject:forFile:](JCOREFCCache.m:107)
18 ***                     0x0000000101e7f748 -[JCORESupersetManager saveMoniter:](JCORESupersetManager.m:180)
19 ***                     0x0000000101e7f598 -[JCORESupersetManager endConnectionMoniter:](JCORESupersetManager.m:159)
20 Foundation                     0x0000000182c3c78c ___NSThreadPerformPerform + 264
21 CoreFoundation                 0x0000000188a22128 ___CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28
22 CoreFoundation                 0x0000000188a2e7b4 ___CFRunLoopDoSource0 + 176
23 CoreFoundation                 0x00000001889b3648 ___CFRunLoopDoSources0 + 340
24 CoreFoundation                 0x00000001889c90d4 ___CFRunLoopRun + 828
25 CoreFoundation                 0x00000001889ce3ec _CFRunLoopRunSpecific + 612
26 Foundation                     0x0000000182c42fb4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212
27 Foundation                     0x0000000182c42e48 -[NSRunLoop(NSRunLoop) run] + 64
28 ***                     0x0000000101e1cafc +[JCOREQueueManager threadEntryPoint:](JCOREQueueManager.m:33)
29 Foundation                     0x0000000182c5c524 ___NSThread__start__ + 716
30 libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 14 Name: io.jiguang.hxhg.network
0  libsystem_kernel.dylib         0x00000001c790eca4 _mach_msg2_trap + 8
1  libsystem_kernel.dylib         0x00000001c7921b74 _mach_msg2_internal + 80
2  libsystem_kernel.dylib         0x00000001c7921e4c _mach_msg_overwrite + 540
3  libsystem_kernel.dylib         0x00000001c790f1e8 _mach_msg + 24
4  CoreFoundation                 0x00000001889c8024 ___CFRunLoopServiceMachPort + 160
5  CoreFoundation                 0x00000001889c9250 ___CFRunLoopRun + 1208
6  CoreFoundation                 0x00000001889ce3ec _CFRunLoopRunSpecific + 612
7  CoreFoundation                 0x0000000188a10ea4 _CFRunLoopRun + 64
8  ***                     0x0000000101e27f80 +[JCORENetworkThread run](JCORENetworkController.m:41)
9  Foundation                     0x0000000182c5c524 ___NSThread__start__ + 716
10 libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 15
0  libsystem_kernel.dylib         0x00000001c790f1ac ___workq_kernreturn + 8
1  libsystem_pthread.dylib        0x00000001e8789e28 __pthread_wqthread + 364

Thread 16
0  libsystem_kernel.dylib         0x00000001c790f1ac ___workq_kernreturn + 8
1  libsystem_pthread.dylib        0x00000001e8789e28 __pthread_wqthread + 364

Thread 17
0  libsystem_kernel.dylib         0x00000001c790f1ac ___workq_kernreturn + 8
1  libsystem_pthread.dylib        0x00000001e8789e28 __pthread_wqthread + 364

Posted by

songlinhe

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Answer 3


Thread 18
0  libsystem_kernel.dylib         0x00000001c790eca4 _mach_msg2_trap + 8
1  libsystem_kernel.dylib         0x00000001c7921b74 _mach_msg2_internal + 80
2  libsystem_kernel.dylib         0x00000001c7921e4c _mach_msg_overwrite + 540
3  libsystem_kernel.dylib         0x00000001c790f1e8 _mach_msg + 24
4  ***                     0x0000000102618a28 handleExceptions(RMCrashMonitorMachException.c:178)
5  libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 19 Name: com.apple.CFSocket.private
0  libsystem_kernel.dylib         0x00000001c790f808 _select$DARWIN_EXTSN + 8
1  CoreFoundation                 0x0000000188a1799c ___CFSocketManager + 636
2  libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 20
0  libsystem_kernel.dylib         0x00000001c790f578 ___psynch_cvwait + 8
1  libsystem_pthread.dylib        0x00000001e8791078 __pthread_cond_wait + 1232
2  ***                     0x00000001033932e8 native_event_wait + 228
3  ***                     0x0000000103393674 internal_MSPThread_WaitMessages + 364
4  ***                     0x00000001033934f0 MSPThread_WaitMessages + 212
5  ***                     0x00000001033b1e7c socket_main + 268
6  ***                     0x00000001033947dc ThreadEntryHook + 568
7  libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 21
0  libsystem_kernel.dylib         0x00000001c790f578 ___psynch_cvwait + 8
1  libsystem_pthread.dylib        0x00000001e8791078 __pthread_cond_wait + 1232
2  ***                     0x00000001033932e8 native_event_wait + 228
3  ***                     0x0000000103362430 dns_main + 136
4  libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 22
0  libsystem_kernel.dylib         0x00000001c790f578 ___psynch_cvwait + 8
1  libsystem_pthread.dylib        0x00000001e8791078 __pthread_cond_wait + 1232
2  ***                     0x00000001033932e8 native_event_wait + 228
3  ***                     0x0000000103393674 internal_MSPThread_WaitMessages + 364
4  ***                     0x00000001033934f0 MSPThread_WaitMessages + 212
5  ***                     0x00000001033d87bc iFLYlua_engine_main + 508
6  ***                     0x00000001033947dc ThreadEntryHook + 568
7  libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 23
0  libsystem_kernel.dylib         0x00000001c790f578 ___psynch_cvwait + 8
1  libsystem_pthread.dylib        0x00000001e8791078 __pthread_cond_wait + 1232
2  ***                     0x00000001033932e8 native_event_wait + 228
3  ***                     0x0000000103393674 internal_MSPThread_WaitMessages + 364
4  ***                     0x00000001033934f0 MSPThread_WaitMessages + 212
5  ***                     0x00000001033d87bc iFLYlua_engine_main + 508
6  ***                     0x00000001033947dc ThreadEntryHook + 568
7  libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 24
0  libsystem_kernel.dylib         0x00000001c790f578 ___psynch_cvwait + 8
1  libsystem_pthread.dylib        0x00000001e8791078 __pthread_cond_wait + 1232
2  ***                     0x00000001033932e8 native_event_wait + 228
3  ***                     0x0000000103393674 internal_MSPThread_WaitMessages + 364
4  ***                     0x00000001033934f0 MSPThread_WaitMessages + 212
5  ***                     0x00000001033d87bc iFLYlua_engine_main + 508
6  ***                     0x00000001033947dc ThreadEntryHook + 568
7  libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 25
0  libsystem_kernel.dylib         0x00000001c790f578 ___psynch_cvwait + 8
1  libsystem_pthread.dylib        0x00000001e8791078 __pthread_cond_wait + 1232
2  ***                     0x00000001033932e8 native_event_wait + 228
3  ***                     0x0000000103393674 internal_MSPThread_WaitMessages + 364
4  ***                     0x00000001033934f0 MSPThread_WaitMessages + 212
5  ***                     0x00000001033d87bc iFLYlua_engine_main + 508
6  ***                     0x00000001033947dc ThreadEntryHook + 568
7  libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 26
0  libsystem_kernel.dylib         0x00000001c790f1ac ___workq_kernreturn + 8
1  libsystem_pthread.dylib        0x00000001e8789e28 __pthread_wqthread + 364

Thread 27
0  libsystem_kernel.dylib         0x00000001c790f3a4 _stat64 + 8
1  Foundation                     0x0000000182c2c974 -[NSFileManager fileExistsAtPath:] + 92
2  ***                     0x00000001025d1e14 +[BLYDataManager createFolderAtPathIfNeeded:](BLYDataManager.m:538)
3  ***                     0x00000001025d1cf8 +[BLYDataManager folderPathForPersistenceType:](BLYDataManager.m:535)
4  ***                     0x00000001025d0f5c __57-[BLYDataManager persistData:ofType:withCompletionBlock:]_block_invoke(BLYDataManager.m:409)
5  Foundation                     0x0000000182ca7ef4 ___NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 24
6  Foundation                     0x0000000182c7c000 -[NSBlockOperation main] + 104
7  Foundation                     0x0000000182c7bf90 ___NSOPERATION_IS_INVOKING_MAIN__ + 16
8  Foundation                     0x0000000182c3d4b8 -[NSOperation start] + 708
9  Foundation                     0x0000000182c3d1ec ___NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__ + 16
10 Foundation                     0x0000000182c4287c ___NSOQSchedule_f + 172
11 libdispatch.dylib              0x000000018fe1e320 __dispatch_call_block_and_release + 32
12 libdispatch.dylib              0x000000018fe1feac __dispatch_client_callout + 20
13 libdispatch.dylib              0x000000018fe23330 __dispatch_continuation_pop + 504
14 libdispatch.dylib              0x000000018fe22998 __dispatch_async_redirect_invoke + 584
15 libdispatch.dylib              0x000000018fe31944 __dispatch_root_queue_drain + 396
16 libdispatch.dylib              0x000000018fe32158 __dispatch_worker_thread2 + 164
17 libsystem_pthread.dylib        0x00000001e8789da0 __pthread_wqthread + 228

Thread 28
0  libsystem_kernel.dylib         0x00000001c790f1ac ___workq_kernreturn + 8
1  libsystem_pthread.dylib        0x00000001e8789e28 __pthread_wqthread + 364

Thread 29
0  libsystem_kernel.dylib         0x00000001c790f1ac ___workq_kernreturn + 8
1  libsystem_pthread.dylib        0x00000001e8789e28 __pthread_wqthread + 364

Thread 30
0  libsystem_kernel.dylib         0x00000001c790f1ac ___workq_kernreturn + 8
1  libsystem_pthread.dylib        0x00000001e8789e28 __pthread_wqthread + 364

Thread 31
0  libsystem_kernel.dylib         0x00000001c790f1ac ___workq_kernreturn + 8
1  libsystem_pthread.dylib        0x00000001e8789e28 __pthread_wqthread + 364

Thread 32
0  libsystem_kernel.dylib         0x00000001c790f1ac ___workq_kernreturn + 8
1  libsystem_pthread.dylib        0x00000001e8789e28 __pthread_wqthread + 364

Thread 33

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songlinhe

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Answer 4

Thread 34 Name: JavaScriptCore libpas scavenger
0  libsystem_kernel.dylib         0x00000001c790f578 ___psynch_cvwait + 8
1  libsystem_pthread.dylib        0x00000001e8791078 __pthread_cond_wait + 1232
2  JavaScriptCore                 0x000000019c1abd84 _scavenger_thread_main + 1620
3  libsystem_pthread.dylib        0x00000001e878a6b8 __pthread_start + 148

Thread 5 crashed with ARM Thread State (64-bit):
    x0:0x000000000000001e    x1:0x00000001704be6a8    x2:0x0000000000000002    x3:0x00000001e86f3510
    x4:000000000000000000    x5:0x0000000000001f40    x6:000000000000000000    x7:0x0000000000000d10
    x8:0x0000000000000003    x9:0x0000000000000003   x10:0x0000000000000034   x11:0x0000000000000007
   x12:0x00000001df2f4ab0   x13:0x0000000000000003   x14:0x00000000000007fb   x15:0x00000000f1a1b033
   x16:0x000000021de092a0   x17:0x000000021de092a0   x18:000000000000000000   x19:0x0000000281b35260
   x20:0x00000001704be660   x21:0x00000001e87e155c   x22:0x0000000000000002   x23:0x0000000000000007
   x24:0x0000000281b35280   x25:0x000000021f445e00   x26:000000000000000000   x27:000000000000000000
   x28:0x00000002825d6180    fp:0x00000001704be650    lr:0x77360001e87e14e4    sp:0x00000001704be5f0
    pc:0x00000001e87e14cc  cpsr:0x0000000080001000

Posted by

songlinhe

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Answer 5

__dnssd_client prefix function in crash callstack

Please post the full crash report, per the instructions in Posting a Crash Report.

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Posted by

eskimo

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"__dnssd_client" prefix function in crash callstack

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