more 0x8BADF00D issue on iOS 15.4

Safari & Web General
codefei
codefei OP
Created Mar ’22
Replies 11
Boosts 0
Views 4.8k
Participants 7

After iOS15.4 was released, we noticed the issue. It seems a system bug. It's waiting for the lock for a long time(dead lock).

Hardware Model:      iPhone13,3
Process:             app [9492]
Path:                /private/var/containers/Bundle/Application/***/app.app/app
Identifier:          com.aaa.app
AppStoreTools:       13C90b
AppVariant:          1:iPhone13,3:15
Code Type:           ARM-64 (Native)
Role:                Foreground
Parent Process:      launchd [1]
Coalition:           com.aaa.app [956]
 
Date/Time:           2022-03-17 18:04:46.2811 +0800
Launch Time:         2022-03-17 17:35:18.7389 +0800
OS Version:          iPhone OS 15.4 (19E241)
Release Type:        User
Baseband Version:    2.53.01
Report Version:      104
 
Exception Type:  EXC_CRASH (SIGKILL)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note:  EXC_CORPSE_NOTIFY
Termination Reason: FRONTBOARD 2343432205 
<RBSTerminateContext| domain:10 code:0x8BADF00D explanation:scene-update watchdog transgression: application<com.aaa.app>:9492 exhausted real (wall clock) time allowance of 10.00 seconds
ProcessVisibility: Background
ProcessState: Running
WatchdogEvent: scene-update
WatchdogVisibility: Background
WatchdogCPUStatistics: (
"Elapsed total CPU time (seconds): 20.970 (user 13.070, system 7.900), 35% CPU",
"Elapsed application CPU time (seconds): 0.829, 1% CPU"
) reportType:CrashLog maxTerminationResistance:Interactive>
 
Triggered by Thread:  0
 
 
Kernel Triage:
VM - pmap_enter failed with resource shortage
VM - pmap_enter failed with resource shortage
 
 
Thread 0 name:
Thread 0 Crashed:
0   libsystem_kernel.dylib        	0x00000001cddd1178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x0000000207a399ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   JavaScriptCore                	0x00000001a26f1c38 pas_page_sharing_pool_take_least_recently_used + 800 (lock_private.h:684)
3   JavaScriptCore                	0x00000001a26f2cf4 pas_physical_page_sharing_pool_take + 248 (pas_page_sharing_pool.c:716)
4   JavaScriptCore                	0x00000001a26ca2ec bmalloc_medium_bitfit_page_config_specialized_allocator_try_allocate + 260 (pas_page_sharing_pool.c:862)
5   JavaScriptCore                	0x00000001a26cf48c bmalloc_heap_config_specialized_local_allocator_try_allocate_slow + 328 (pas_local_allocator_inlines.h:1595)
6   JavaScriptCore                	0x00000001a26ba39c bmalloc_allocate_impl_casual_case + 888 (pas_local_allocator_inlines.h:1796)
7   JavaScriptCore                	0x00000001a19d6fb8 ***::RobinHoodHashTable<***::RefPtr<***::UniquedStringImpl, ***::RawPtrTraits<***::UniquedStringImpl>, ***::DefaultRefDerefTraits<***::UniquedStringImpl> >, ***::KeyValuePair<***::RefPtr<***::Uniqu... + 52 (FastMalloc.h:219)
8   JavaScriptCore                	0x00000001a19c6a2c ***::HashTableAddResult<***::HashTableIterator<***::RobinHoodHashTable<***::RefPtr<***::UniquedStringImpl, ***::RawPtrTraits<***::UniquedStringImpl>, ***::DefaultRefDerefTraits<***::UniquedStringIm... + 140 (RobinHoodHashTable.h:729)
9   JavaScriptCore                	0x00000001a19c3dac JSC::BytecodeIntrinsicRegistry::BytecodeIntrinsicRegistry(JSC::VM&) + 33204 (BytecodeIntrinsicRegistry.cpp:59)
10  JavaScriptCore                	0x00000001a23931fc JSC::VM::VM(JSC::VM::VMType, JSC::HeapType, ***::RunLoop*, bool*) + 11444 (unique_ptr.h:728)
11  JavaScriptCore                	0x00000001a2395fd8 JSC::VM::createContextGroup(JSC::HeapType) + 52 (VM.cpp:241)
12  JavaScriptCore                	0x00000001a1811dc0 JSContextGroupCreate + 32 (JSContextRef.cpp:70)
13  JavaScriptCore                	0x00000001a14aa2a4 -[JSVirtualMachine init] + 24 (JSVirtualMachine.mm:94)
14  JavaScriptCore                	0x00000001a14aa304 -[JSContext init] + 32 (JSContext.mm:71)
15  WebKit                        	0x00000001a5058b94 API::SharedJSContext::ensureContext() + 56 (APISerializedScriptValueCocoa.mm:51)
16  WebKit                        	0x00000001a5058ad4 API::SerializedScriptValue::deserialize(WebCore::SerializedScriptValue&, OpaqueJSValue const**) + 44 (APISerializedScriptValueCocoa.mm:78)
17  WebKit                        	0x00000001a50d7180 ScriptMessageHandlerDelegate::didPostMessage(WebKit::WebPageProxy&, WebKit::FrameInfoData&&, API::ContentWorld&, WebCore::SerializedScriptValue&) + 136 (WKUserContentController.mm:152)
18  WebKit                        	0x00000001a5424da4 WebKit::WebUserContentControllerProxy::didPostMessage(***::ObjectIdentifier<WebKit::WebPageProxyIdentifierType>, WebKit::FrameInfoData&&, unsigned long long, ***::Span<unsigned char const, 18446744... + 732 (WebUserContentControllerProxy.cpp:346)
19  WebKit                        	0x00000001a5708dcc WebKit::WebUserContentControllerProxy::didReceiveMessage(IPC::Connection&, IPC::Decoder&) + 2716 (HandleMessage.h:139)
20  WebKit                        	0x00000001a5159b60 IPC::MessageReceiverMap::dispatchMessage(IPC::Connection&, IPC::Decoder&) + 264 (MessageReceiverMap.cpp:129)
21  WebKit                        	0x00000001a5381dac WebKit::WebProcessProxy::didReceiveMessage(IPC::Connection&, IPC::Decoder&) + 40 (AuxiliaryProcessProxy.cpp:247)
22  WebKit                        	0x00000001a514e2ac IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >) + 788 (Connection.cpp:1080)
23  WebKit                        	0x00000001a514d960 IPC::Connection::dispatchIncomingMessages() + 508 (Connection.cpp:1229)
24  JavaScriptCore                	0x00000001a265de10 ***::RunLoop::performWork() + 200 (Function.h:82)
25  JavaScriptCore                	0x00000001a265ebac ***::RunLoop::performWork(void*) + 36 (RunLoopCF.cpp:46)
26  CoreFoundation                	0x000000019632ff04 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 (CFRunLoop.c:1972)
27  CoreFoundation                	0x0000000196340c90 __CFRunLoopDoSource0 + 208 (CFRunLoop.c:2016)
28  CoreFoundation                	0x000000019627a184 __CFRunLoopDoSources0 + 268 (CFRunLoop.c:2053)
29  CoreFoundation                	0x000000019627fb4c __CFRunLoopRun + 828 (CFRunLoop.c:2951)
30  CoreFoundation                	0x00000001962936b8 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268)
31  GraphicsServices              	0x00000001b232d374 GSEventRunModal + 164 (GSEvent.c:2200)
32  UIKitCore                     	0x0000000198bf8e88 -[UIApplication _run] + 1100 (UIApplication.m:3511)
33  UIKitCore                     	0x000000019897a5ec UIApplicationMain + 364 (UIApplication.m:5064)
34  app                     	0x0000000104cd277c main + 388 (main.mm:38)
35  dyld                          	0x0000000109919ce4 start + 520 (dyldMain.cpp:879)
Answered by DTS Engineer in 710693022

I had reason to dig into this issue in another context and it seems that this is an issue we’re tracking (r. 89020902). AFAICT this should be fixed in the iOS 15.5b1 (19F5047e) that we’re currently seeding. If you still see the problem on that release, or anything later, please let us know.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

Replies  11
Boosts  0
Views  4.8k
Participants  7
zltunes
zltunes OP
Mar ’22

same issue+1

it seems this commit enabled libpas, didn't see the same backtrace before.pas_page_sharing_pool_take_least_recently_used

anyone knows which iOS version merged this commit?

2
Apple Staff, DTS Engineer
DTS Engineer OP
Apple
Mar ’22

It's waiting for the lock for a long time(dead lock).

Please post a full crash report for this. See my Posting a Crash Report post for advice on how to do that.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

0
codefei
codefei OP
Mar ’22

Please post a full crash report for this.

Recently we have taken a lot of time to analyze the issue of our app. But this issue only happens on iOS15.4.

With the upgrade of iOS15.4, we're getting more and more crashes reports. We both think it should be a serious system bug.

Refer to the full crash report in the attachment ('...' means I removed some stack of our image).

Does anyone else has met the same issue?

Incident Identifier: 
Hardware Model:      iPhone11,8
Process:             xxxxxxxxx [8896]
Path:                /private/var/containers/Bundle/Application/D00700E-2E45-4E8C-9F9E-67F1758DC138/xxxxxxxxx.app/xxxxxxxxx
Identifier:          com.***.xxxxxxxxx
Version:             
AppStoreTools:       
AppVariant:          1:iPhone11,8:15
Code Type:           ARM-64 (Native)
Role:                Foreground
Parent Process:      launchd [1]
Coalition:           com.***.xxxxxxxxx [733]

Date/Time:           2022-03-17 19:03:58.7256 +0800
Launch Time:         2022-03-17 17:32:32.8610 +0800
OS Version:          iPhone OS 15.4 (19E241)
Release Type:        User
Baseband Version:    4.03.02
Report Version:      104

Exception Type:  EXC_CRASH (SIGKILL)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note:  EXC_CORPSE_NOTIFY
Termination Reason: FRONTBOARD 2343432205 
<RBSTerminateContext| domain:10 code:0x8BADF00D explanation:scene-update watchdog transgression: application<com.***.xxxxxxxxx>:8896 exhausted real (wall clock) time allowance of 10.00 seconds
ProcessVisibility: Foreground
ProcessState: Running
WatchdogEvent: scene-update
WatchdogVisibility: Background
WatchdogCPUStatistics: (
"Elapsed total CPU time (seconds): 12.440 (user 12.440, system 0.000), 20% CPU",
"Elapsed application CPU time (seconds): 0.973, 2% CPU"
) reportType:CrashLog maxTerminationResistance:Interactive>

Triggered by Thread:  0


Kernel Triage:
VM - Compressor failed a blocking pager_get
VM - Compressor failed a blocking pager_get
VM - Compressor failed a blocking pager_get
VM - Compressor failed a blocking pager_get
VM - pmap_enter failed with resource shortage


Thread 0 name:
Thread 0 Crashed:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   JavaScriptCore                	0x00000001ec681c38 pas_page_sharing_pool_take_least_recently_used + 800 (lock_private.h:684)
3   JavaScriptCore                	0x00000001ec682cf4 pas_physical_page_sharing_pool_take + 248 (pas_page_sharing_pool.c:716)
4   JavaScriptCore                	0x00000001ec65c29c bmalloc_marge_bitfit_page_config_specialized_allocator_try_allocate + 260 (pas_page_sharing_pool.c:862)
5   JavaScriptCore                	0x00000001ec65f428 bmalloc_heap_config_specialized_local_allocator_try_allocate_slow + 228 (pas_local_allocator_inlines.h:1620)
6   JavaScriptCore                	0x00000001ec64a39c bmalloc_allocate_impl_casual_case + 888 (pas_local_allocator_inlines.h:1796)
7   JavaScriptCore                	0x00000001ec325fc4 JSC::VM::createContextGroup(JSC::HeapType) + 32 (ThreadSafeRefCounted.h:43)
8   JavaScriptCore                	0x00000001eb7a1dc0 JSContextGroupCreate + 32 (JSContextRef.cpp:70)
9   JavaScriptCore                	0x00000001eb43a2a4 -[JSVirtualMachine init] + 24 (JSVirtualMachine.mm:94)
10  JavaScriptCore                	0x00000001eb43a304 -[JSContext init] + 32 (JSContext.mm:71)
11  WebKit                        	0x00000001eefe8b94 API::SharedJSContext::ensureContext() + 56 (APISerializedScriptValueCocoa.mm:51)
12  WebKit                        	0x00000001eefe8ad4 API::SerializedScriptValue::deserialize(WebCore::SerializedScriptValue&, OpaqueJSValue const**) + 44 (APISerializedScriptValueCocoa.mm:78)
13  WebKit                        	0x00000001ef067180 ScriptMessageHandlerDelegate::didPostMessage(WebKit::WebPageProxy&, WebKit::FrameInfoData&&, API::ContentWorld&, WebCore::SerializedScriptValue&) + 136 (WKUserContentController.mm:152)
14  WebKit                        	0x00000001ef3b4da4 WebKit::WebUserContentControllerProxy::didPostMessage(WTF::ObjectIdentifier<WebKit::WebPageProxyIdentifierType>, WebKit::FrameInfoData&&, unsigned long long, WTF::Span<unsigned char const, 18446744... + 732 (WebUserContentControllerProxy.cpp:346)
15  WebKit                        	0x00000001ef698dcc WebKit::WebUserContentControllerProxy::didReceiveMessage(IPC::Connection&, IPC::Decoder&) + 2716 (HandleMessage.h:139)
16  WebKit                        	0x00000001ef0e9b60 IPC::MessageReceiverMap::dispatchMessage(IPC::Connection&, IPC::Decoder&) + 264 (MessageReceiverMap.cpp:129)
17  WebKit                        	0x00000001ef311dac WebKit::WebProcessProxy::didReceiveMessage(IPC::Connection&, IPC::Decoder&) + 40 (AuxiliaryProcessProxy.cpp:247)
18  WebKit                        	0x00000001ef0de2ac IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >) + 788 (Connection.cpp:1080)
19  WebKit                        	0x00000001ef0dd960 IPC::Connection::dispatchIncomingMessages() + 508 (Connection.cpp:1229)
20  JavaScriptCore                	0x00000001ec5ede10 WTF::RunLoop::performWork() + 200 (Function.h:82)
21  JavaScriptCore                	0x00000001ec5eebac WTF::RunLoop::performWork(void*) + 36 (RunLoopCF.cpp:46)
22  CoreFoundation                	0x00000001e02bff04 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 (CFRunLoop.c:1972)
23  CoreFoundation                	0x00000001e02d0c90 __CFRunLoopDoSource0 + 208 (CFRunLoop.c:2016)
24  CoreFoundation                	0x00000001e020a184 __CFRunLoopDoSources0 + 268 (CFRunLoop.c:2053)
25  CoreFoundation                	0x00000001e020fb4c __CFRunLoopRun + 828 (CFRunLoop.c:2951)
26  CoreFoundation                	0x00000001e02236b8 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268)
27  GraphicsServices              	0x00000001fc2bd374 GSEventRunModal + 164 (GSEvent.c:2200)
28  UIKitCore                     	0x00000001e2b88e88 -[UIApplication _run] + 1100 (UIApplication.m:3511)
29  UIKitCore                     	0x00000001e290a5ec UIApplicationMain + 364 (UIApplication.m:5064)
30  xxxxxxxxx                     	0x0000000102b9e77c main + 388 (main.mm:38)
31  dyld                          	0x000000010792dce4 start + 520 (dyldMain.cpp:879)

Thread 1 name:
Thread 1:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
5   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
6   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 2 name:
Thread 2:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x0000000251229b08 pthread_mach_thread_np + 56 (inline_internal.h:117)
3   JavaScriptCore                	0x00000001ec69a7c8 pas_thread_local_cache_for_all + 1432 (pas_thread_local_cache.c:626)
4   JavaScriptCore                	0x00000001ec686168 scavenger_thread_main + 356 (pas_scavenger.c:209)
5   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
6   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 3 name:
Thread 3:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
7   VideoToolbox                  	0x00000001f6201788 __vtdsr_dequeueAllPendingFramesAndCallbackClientForEach_block_invoke + 1104 (VTDecompressionSession_Remote.c:612)
8   libdispatch.dylib             	0x00000001dff02e68 _dispatch_call_block_and_release + 32 (init.c:1517)
9   libdispatch.dylib             	0x00000001dff04a2c _dispatch_client_callout + 20 (object.m:560)
10  libdispatch.dylib             	0x00000001dff0c204 _dispatch_lane_serial_drain + 892 (inline_internal.h:2608)
11  libdispatch.dylib             	0x00000001dff0cc80 _dispatch_lane_invoke + 392 (queue.c:3944)
12  libdispatch.dylib             	0x00000001dff17500 _dispatch_workloop_worker_thread + 648 (queue.c:6732)
13  libsystem_pthread.dylib       	0x00000002512260bc _pthread_wqthread + 288 (pthread.c:2599)
14  libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8

Thread 4 name:
Thread 4:
0   libsystem_kernel.dylib        	0x0000000217c074e0 mach_msg_trap + 8
1   libsystem_kernel.dylib        	0x0000000217c07b24 mach_msg + 76 (mach_msg.c:119)
2   CoreFoundation                	0x00000001e020b820 __CFRunLoopServiceMachPort + 372 (CFRunLoop.c:2646)
3   CoreFoundation                	0x00000001e020fcac __CFRunLoopRun + 1180 (CFRunLoop.c:3000)
4   CoreFoundation                	0x00000001e02236b8 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268)
5   Foundation                    	0x00000001e1a0a414 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 236 (NSRunLoop.m:373)
6   Foundation                    	0x00000001e1a4bcac -[NSRunLoop(NSRunLoop) runUntilDate:] + 92 (NSRunLoop.m:420)
7   UIKitCore                     	0x00000001e2b02fb0 -[UIEventFetcher threadMain] + 524 (UIEventFetcher.m:1167)
8   Foundation                    	0x00000001e1a5a55c __NSThread__start__ + 808 (NSThread.m:972)
9   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
10  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 5 name:
Thread 5:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x000000025122c0e0 pthread_from_mach_thread_np + 36 (inline_internal.h:117)
...
5   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
6   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 6 name:
Thread 6:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
6   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
7   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 7 name:
Thread 7:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
6   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
7   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 8 name:
Thread 8:
0   libsystem_kernel.dylib        	0x0000000217c074e0 mach_msg_trap + 8
1   libsystem_kernel.dylib        	0x0000000217c07b24 mach_msg + 76 (mach_msg.c:119)
2   libsystem_kernel.dylib        	0x0000000217c13a84 thread_suspend + 96 (thread_actUser.c:1016)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 9 name:
Thread 9:
0   libsystem_kernel.dylib        	0x0000000217c074e0 mach_msg_trap + 8
1   libsystem_kernel.dylib        	0x0000000217c07b24 mach_msg + 76 (mach_msg.c:119)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 10 name:
Thread 10:
0   libsystem_kernel.dylib        	0x0000000217c07a6c __semwait_signal + 8
1   libsystem_c.dylib             	0x00000001eb3650dc nanosleep + 220 (nanosleep.c:104)
2   libsystem_c.dylib             	0x00000001eb365e0c usleep + 68 (usleep.c:52)
...
7   libsystem_pthread.dylib       	0x00000002512269ac 
8   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 11 name:
Thread 11:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
2   libc++.1.dylib                	0x00000001f8fa2238 std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 28 (__threading_support:380)
...
10  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
11  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 12 name:
Thread 12:
0   libsystem_kernel.dylib        	0x0000000217c074e0 mach_msg_trap + 8
1   libsystem_kernel.dylib        	0x0000000217c07b24 mach_msg + 76 (mach_msg.c:119)
2   CoreFoundation                	0x00000001e020b820 __CFRunLoopServiceMachPort + 372 (CFRunLoop.c:2646)
3   CoreFoundation                	0x00000001e020fcac __CFRunLoopRun + 1180 (CFRunLoop.c:3000)
4   CoreFoundation                	0x00000001e02236b8 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268)
5   Foundation                    	0x00000001e1a0a414 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 236 (NSRunLoop.m:373)
6   Foundation                    	0x00000001e1a0abd0 -[NSRunLoop(NSRunLoop) run] + 92 (NSRunLoop.m:398)
...
8   Foundation                    	0x00000001e1a5a55c __NSThread__start__ + 808 (NSThread.m:972)
9   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
10  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 13 name:
Thread 13:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
12  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
13  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 14 name:
Thread 14:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x000000025122c1bc pthread_detach + 40 (inline_internal.h:117)
...
20  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
21  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 15 name:
Thread 15:
0   libsystem_kernel.dylib        	0x0000000217c074e0 mach_msg_trap + 8
1   libsystem_kernel.dylib        	0x0000000217c07b24 mach_msg + 76 (mach_msg.c:119)
2   CoreFoundation                	0x00000001e020b820 __CFRunLoopServiceMachPort + 372 (CFRunLoop.c:2646)
3   CoreFoundation                	0x00000001e020fcac __CFRunLoopRun + 1180 (CFRunLoop.c:3000)
4   CoreFoundation                	0x00000001e02236b8 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268)
5   CoreFoundation                	0x00000001e02a4898 CFRunLoopRun + 64 (CFRunLoop.c:3293)
...
7   libdispatch.dylib             	0x00000001dff02e68 _dispatch_call_block_and_release + 32 (init.c:1517)
8   libdispatch.dylib             	0x00000001dff04a2c _dispatch_client_callout + 20 (object.m:560)
9   libdispatch.dylib             	0x00000001dff07b44 _dispatch_queue_override_invoke + 784 (inline_internal.h:2622)
10  libdispatch.dylib             	0x00000001dff16164 _dispatch_root_queue_drain + 396 (inline_internal.h:0)
11  libdispatch.dylib             	0x00000001dff1696c _dispatch_worker_thread2 + 164 (queue.c:6935)
12  libsystem_pthread.dylib       	0x0000000251226080 _pthread_wqthread + 228 (pthread.c:2612)
13  libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8

Thread 16 name:
Thread 16:
0   libsystem_kernel.dylib        	0x0000000217c0751c semaphore_wait_trap + 8
1   libdispatch.dylib             	0x00000001dff04fc8 _dispatch_sema4_wait + 28 (lock.c:139)
2   libdispatch.dylib             	0x00000001dff05670 _dispatch_semaphore_wait_slow + 132 (semaphore.c:132)
... 
4   Foundation                    	0x00000001e1a5a55c __NSThread__start__ + 808 (NSThread.m:972)
5   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
6   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 17 name:
Thread 17:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x000000025122c0e0 pthread_from_mach_thread_np + 36 (inline_internal.h:117)
...
6   QuartzCore                    	0x00000001e3f461a0 CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 748 (CADisplay.mm:4175)
7   QuartzCore                    	0x00000001e3f4d1d4 display_timer_callback(__CFMachPort*, void*, long, void*) + 372 (CADisplayTimer.cpp:219)
8   CoreFoundation                	0x00000001e020f6e0 __CFMachPortPerform + 176 (CFMachPort.c:549)
9   CoreFoundation                	0x00000001e0252d48 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 60 (CFRunLoop.c:1996)
10  CoreFoundation                	0x00000001e0256554 __CFRunLoopDoSource1 + 604 (CFRunLoop.c:2136)
11  CoreFoundation                	0x00000001e0210154 __CFRunLoopRun + 2372 (CFRunLoop.c:3172)
12  CoreFoundation                	0x00000001e02236b8 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268)
13  Foundation                    	0x00000001e1a0a414 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 236 (NSRunLoop.m:373)
...
15  Foundation                    	0x00000001e1a5a55c __NSThread__start__ + 808 (NSThread.m:972)
16  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
17  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 18 name:
Thread 18:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
12  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
13  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 19:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
12  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
13  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 20 name:
Thread 20:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
12  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
13  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 21 name:
Thread 21:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
12  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
13  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 22 name:
Thread 22:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
12  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
13  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 23 name:
Thread 23:
0   libsystem_kernel.dylib        	0x0000000217c08e58 kevent + 8
...
6   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
7   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 24 name:
Thread 24:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
7   VideoToolbox                  	0x00000001f6201788 __vtdsr_dequeueAllPendingFramesAndCallbackClientForEach_block_invoke + 1104 (VTDecompressionSession_Remote.c:612)
8   libdispatch.dylib             	0x00000001dff02e68 _dispatch_call_block_and_release + 32 (init.c:1517)
9   libdispatch.dylib             	0x00000001dff04a2c _dispatch_client_callout + 20 (object.m:560)
10  libdispatch.dylib             	0x00000001dff0c204 _dispatch_lane_serial_drain + 892 (inline_internal.h:2608)
11  libdispatch.dylib             	0x00000001dff0cc80 _dispatch_lane_invoke + 392 (queue.c:3944)
12  libdispatch.dylib             	0x00000001dff17500 _dispatch_workloop_worker_thread + 648 (queue.c:6732)
13  libsystem_pthread.dylib       	0x00000002512260bc _pthread_wqthread + 288 (pthread.c:2599)
14  libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8

Thread 25 name:
Thread 25:
0   libsystem_kernel.dylib        	0x0000000217c08e58 kevent + 8
...
6   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
7   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 26 name:
Thread 26:
0   libsystem_kernel.dylib        	0x0000000217c0abe4 poll + 8
...
5   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
6   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 27 name:
Thread 27:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
2   libc++.1.dylib                	0x00000001f8fa2238 std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 28 (__threading_support:380)
...
8   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
9   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 28 name:
Thread 28:
0   libsystem_kernel.dylib        	0x0000000217c0abe4 poll + 8
...
5   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
6   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 29 name:
Thread 29:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
12  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
13  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 30 name:
Thread 30:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x000000025122c1bc pthread_detach + 40 (inline_internal.h:117)
...
20  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
21  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 31 name:
Thread 31:
0   libsystem_kernel.dylib        	0x0000000217c074e0 mach_msg_trap + 8
1   libsystem_kernel.dylib        	0x0000000217c07b24 mach_msg + 76 (mach_msg.c:119)
2   CoreFoundation                	0x00000001e020b820 __CFRunLoopServiceMachPort + 372 (CFRunLoop.c:2646)
3   CoreFoundation                	0x00000001e020fcac __CFRunLoopRun + 1180 (CFRunLoop.c:3000)
4   CoreFoundation                	0x00000001e02236b8 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268)
5   Foundation                    	0x00000001e1a0a414 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 236 (NSRunLoop.m:373)
6   Foundation                    	0x00000001e1a0abd0 -[NSRunLoop(NSRunLoop) run] + 92 (NSRunLoop.m:398)
...
8   Foundation                    	0x00000001e1a5a55c __NSThread__start__ + 808 (NSThread.m:972)
9   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
10  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 32 name:
Thread 32:
0   libsystem_kernel.dylib        	0x0000000217c074e0 mach_msg_trap + 8
1   libsystem_kernel.dylib        	0x0000000217c07b24 mach_msg + 76 (mach_msg.c:119)
2   CoreFoundation                	0x00000001e020b820 __CFRunLoopServiceMachPort + 372 (CFRunLoop.c:2646)
3   CoreFoundation                	0x00000001e020fcac __CFRunLoopRun + 1180 (CFRunLoop.c:3000)
4   CoreFoundation                	0x00000001e02236b8 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268)
5   CFNetwork                     	0x00000001e0c994d8 +[__CFN_CoreSchedulingSetRunnable _run:] + 472 (CoreSchedulingSet.mm:1372)
6   Foundation                    	0x00000001e1a5a55c __NSThread__start__ + 808 (NSThread.m:972)
7   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
8   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 33 name:
Thread 33:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 34 name:
Thread 34:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 35 name:
Thread 35:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 36 name:
Thread 36:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 37 name:
Thread 37:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 38 name:
Thread 38:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 39 name:
Thread 39:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 40 name:
Thread 40:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 41 name:
Thread 41:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 42 name:
Thread 42:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 43 name:
Thread 43:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 44 name:
Thread 44:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
6   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
7   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 45 name:
Thread 45:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
5   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
6   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 46 name:
Thread 46:
0   libsystem_kernel.dylib        	0x0000000217c07a6c __semwait_signal + 8
1   libsystem_c.dylib             	0x00000001eb3650dc nanosleep + 220 (nanosleep.c:104)
...
5   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
6   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 47 name:
Thread 47:
0   libsystem_kernel.dylib        	0x0000000217c074e0 mach_msg_trap + 8
1   libsystem_kernel.dylib        	0x0000000217c07b24 mach_msg + 76 (mach_msg.c:119)
2   CoreFoundation                	0x00000001e020b820 __CFRunLoopServiceMachPort + 372 (CFRunLoop.c:2646)
3   CoreFoundation                	0x00000001e020fcac __CFRunLoopRun + 1180 (CFRunLoop.c:3000)
4   CoreFoundation                	0x00000001e02236b8 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268)
5   AudioSession                  	0x00000001e980cf04 CADeprecated::GenericRunLoopThread::Entry(void*) + 164 (GenericRunLoopThread.h:95)
6   AudioSession                  	0x00000001e98168f0 CADeprecated::CAPThread::Entry(CADeprecated::CAPThread*) + 92 (CAPThread.cpp:324)
7   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
8   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 48 name:
Thread 48:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 49 name:
Thread 49:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 50 name:
Thread 50:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 51 name:
Thread 51:
0   libsystem_kernel.dylib        	0x0000000217c07a6c __semwait_signal + 8
1   libsystem_c.dylib             	0x00000001eb3650dc nanosleep + 220 (nanosleep.c:104)
...
4   AudioToolbox                  	0x00000001eb0858b4 ClientAudioQueue::CallOutputCallback(AudioQueueBuffer*) + 292 (AQClient.cpp:413)
5   AudioToolbox                  	0x00000001eb084bf0 ClientAudioQueue::FetchAndDeliverPendingCallbacks(unsigned int) + 1044 (AQClientCallbacks.h:154)
6   AudioToolbox                  	0x00000001eb0d4448 _XCallbackNotificationsAvailable + 216 (AQClient.cpp:1001)
7   libAudioToolboxUtility.dylib  	0x00000001f98afc24 mshMIGPerform + 264 (MachServerHelper.c:450)
8   CoreFoundation                	0x00000001e0252d48 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 60 (CFRunLoop.c:1996)
9   CoreFoundation                	0x00000001e0256554 __CFRunLoopDoSource1 + 604 (CFRunLoop.c:2136)
10  CoreFoundation                	0x00000001e0210154 __CFRunLoopRun + 2372 (CFRunLoop.c:3172)
11  CoreFoundation                	0x00000001e02236b8 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268)
12  AudioToolbox                  	0x00000001eb086814 CADeprecated::GenericRunLoopThread::Entry(void*) + 164 (GenericRunLoopThread.h:95)
13  libAudioToolboxUtility.dylib  	0x00000001f98c1048 CADeprecated::CAPThread::Entry(CADeprecated::CAPThread*) + 92 (CAPThread.cpp:324)
14  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
15  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 52 name:
Thread 52:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
7   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
8   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 53:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 54:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 55:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 56:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 57 name:
Thread 57:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libdispatch.dylib             	0x00000001dff0541c _dlock_wait + 56 (lock.c:326)
2   libdispatch.dylib             	0x00000001dff057c0 _dispatch_group_wait_slow + 56 (semaphore.c:214)
3   VideoToolbox                  	0x00000001f61ff3b0 vtdsr_dequeueAllPendingFramesAndCallbackClientForEach + 164 (VTDecompressionSession_Remote.c:709)
4   VideoToolbox                  	0x00000001f61ffd48 vtDecompressionSessionRemote_DecodeFrameCommon + 476 (VTDecompressionSession_Remote.c:1292)
...
11  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
12  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 58 name:
Thread 58:
0   libsystem_kernel.dylib        	0x0000000217c074e0 mach_msg_trap + 8
1   libsystem_kernel.dylib        	0x0000000217c07b24 mach_msg + 76 (mach_msg.c:119)
2   CoreFoundation                	0x00000001e020b820 __CFRunLoopServiceMachPort + 372 (CFRunLoop.c:2646)
3   CoreFoundation                	0x00000001e020fcac __CFRunLoopRun + 1180 (CFRunLoop.c:3000)
4   CoreFoundation                	0x00000001e02236b8 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268)
5   CFNetwork                     	0x00000001e0c994d8 +[__CFN_CoreSchedulingSetRunnable _run:] + 472 (CoreSchedulingSet.mm:1372)
6   Foundation                    	0x00000001e1a5a55c __NSThread__start__ + 808 (NSThread.m:972)
7   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
8   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 59 name:
Thread 59:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
6   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
7   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 60 name:
Thread 60:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
7   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 61 name:
Thread 61:
0   libsystem_kernel.dylib        	0x0000000217c07a6c __semwait_signal + 8
1   libsystem_c.dylib             	0x00000001eb3650dc nanosleep + 220 (nanosleep.c:104)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 62 name:
Thread 62:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
5   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
6   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 63 name:
Thread 63:
0   libsystem_kernel.dylib        	0x0000000217c07a6c __semwait_signal + 8
1   libsystem_c.dylib             	0x00000001eb3650dc nanosleep + 220 (nanosleep.c:104)
...
4   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
5   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 64 name:
Thread 64:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
5   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
6   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 65 name:
Thread 65:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
5   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
6   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 66:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 67:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 68:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 69:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 70 name:
Thread 70:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libdispatch.dylib             	0x00000001dff0541c _dlock_wait + 56 (lock.c:326)
2   libdispatch.dylib             	0x00000001dff057c0 _dispatch_group_wait_slow + 56 (semaphore.c:214)
3   VideoToolbox                  	0x00000001f61ff3b0 vtdsr_dequeueAllPendingFramesAndCallbackClientForEach + 164 (VTDecompressionSession_Remote.c:709)
4   VideoToolbox                  	0x00000001f61ffd48 vtDecompressionSessionRemote_DecodeFrameCommon + 476 (VTDecompressionSession_Remote.c:1292)
...
11  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
12  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 71 name:
Thread 71:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
5   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
6   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 72:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 73:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 74:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 75:
0   libsystem_kernel.dylib        	0x0000000217c07f64 __psynch_cvwait + 8
1   libsystem_pthread.dylib       	0x000000025122d298 _pthread_cond_wait + 1236 (pthread_cond.c:636)
...
3   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
4   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 76 name:
Thread 76:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libdispatch.dylib             	0x00000001dff0541c _dlock_wait + 56 (lock.c:326)
2   libdispatch.dylib             	0x00000001dff057c0 _dispatch_group_wait_slow + 56 (semaphore.c:214)
3   VideoToolbox                  	0x00000001f61ff3b0 vtdsr_dequeueAllPendingFramesAndCallbackClientForEach + 164 (VTDecompressionSession_Remote.c:709)
4   VideoToolbox                  	0x00000001f61ffd48 vtDecompressionSessionRemote_DecodeFrameCommon + 476 (VTDecompressionSession_Remote.c:1292)
...
11  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
12  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 77 name:
Thread 77:
0   libsystem_kernel.dylib        	0x0000000217c074e0 mach_msg_trap + 8
1   libsystem_kernel.dylib        	0x0000000217c07b24 mach_msg + 76 (mach_msg.c:119)
2   CoreFoundation                	0x00000001e020b820 __CFRunLoopServiceMachPort + 372 (CFRunLoop.c:2646)
3   CoreFoundation                	0x00000001e020fcac __CFRunLoopRun + 1180 (CFRunLoop.c:3000)
4   CoreFoundation                	0x00000001e02236b8 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268)
5   CoreFoundation                	0x00000001e02a4898 CFRunLoopRun + 64 (CFRunLoop.c:3293)
6   CoreMotion                    	0x00000001ed57f764 CLMotionCore::runMotionThread(void*) + 1208 (CLMotionCore.mm:370)
7   libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
8   libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 78 name:
Thread 78:
0   libsystem_kernel.dylib        	0x0000000217c074e0 mach_msg_trap + 8
1   libsystem_kernel.dylib        	0x0000000217c07b24 mach_msg + 76 (mach_msg.c:119)
2   CoreFoundation                	0x00000001e020b820 __CFRunLoopServiceMachPort + 372 (CFRunLoop.c:2646)
3   CoreFoundation                	0x00000001e020fcac __CFRunLoopRun + 1180 (CFRunLoop.c:3000)
4   CoreFoundation                	0x00000001e02236b8 CFRunLoopRunSpecific + 600 (CFRunLoop.c:3268)
5   Foundation                    	0x00000001e1a0a414 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 236 (NSRunLoop.m:373)
6   Foundation                    	0x00000001e1a0abd0 -[NSRunLoop(NSRunLoop) run] + 92 (NSRunLoop.m:398)
...
11  Foundation                    	0x00000001e1a5a55c __NSThread__start__ + 808 (NSThread.m:972)
12  libsystem_pthread.dylib       	0x00000002512269ac _pthread_start + 148 (pthread.c:891)
13  libsystem_pthread.dylib       	0x0000000251225e68 thread_start + 8

Thread 79:
0   libsystem_pthread.dylib       	0x0000000251225e54 start_wqthread + 0

Thread 80:
0   libsystem_pthread.dylib       	0x0000000251225e54 start_wqthread + 0

Thread 81 name:
Thread 81:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x000000025122c0e0 pthread_from_mach_thread_np + 36 (inline_internal.h:117)
...
6   libdispatch.dylib             	0x00000001dff02e68 _dispatch_call_block_and_release + 32 (init.c:1517)
7   libdispatch.dylib             	0x00000001dff04a2c _dispatch_client_callout + 20 (object.m:560)
8   libdispatch.dylib             	0x00000001dff0c124 _dispatch_lane_serial_drain + 668 (inline_internal.h:2622)
9   libdispatch.dylib             	0x00000001dff0cc80 _dispatch_lane_invoke + 392 (queue.c:3944)
10  libdispatch.dylib             	0x00000001dff17500 _dispatch_workloop_worker_thread + 648 (queue.c:6732)
11  libsystem_pthread.dylib       	0x00000002512260bc _pthread_wqthread + 288 (pthread.c:2599)
12  libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8

Thread 82 name:
Thread 82:
0   libsystem_pthread.dylib       	0x000000025122c0ec pthread_from_mach_thread_np + 48 (pthread.c:957)
1   libsystem_pthread.dylib       	0x000000025122c0e0 pthread_from_mach_thread_np + 36 (inline_internal.h:117)
...
6   libdispatch.dylib             	0x00000001dff07eec _dispatch_continuation_pop + 500 (inline_internal.h:2622)
7   libdispatch.dylib             	0x00000001dff1b13c _dispatch_source_invoke + 1596 (source.c:596)
8   libdispatch.dylib             	0x00000001dff0c000 _dispatch_lane_serial_drain + 376 (inline_internal.h:0)
9   libdispatch.dylib             	0x00000001dff0cc80 _dispatch_lane_invoke + 392 (queue.c:3944)
10  libdispatch.dylib             	0x00000001dff17500 _dispatch_workloop_worker_thread + 648 (queue.c:6732)
11  libsystem_pthread.dylib       	0x00000002512260bc _pthread_wqthread + 288 (pthread.c:2599)
12  libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8

Thread 83:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   JavaScriptCore                	0x00000001ec698e54 destructor + 92 (lock_private.h:684)
3   libsystem_pthread.dylib       	0x0000000251226e58 _pthread_tsd_cleanup + 524 (pthread_tsd.c:288)
4   libsystem_pthread.dylib       	0x00000002512298d0 _pthread_exit + 84 (pthread.c:1717)
5   libsystem_pthread.dylib       	0x00000002512263b8 _pthread_wqthread_exit + 104 (pthread.c:2559)
6   libsystem_pthread.dylib       	0x0000000251226144 _pthread_wqthread + 424 (pthread.c:2593)
7   libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8

Thread 84:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x00000002512265f0 _pthread_wqthread_setup + 300 (inline_internal.h:128)
3   libsystem_pthread.dylib       	0x0000000251225fd0 _pthread_wqthread + 52 (pthread.c:2568)
4   libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8

Thread 85:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x00000002512265f0 _pthread_wqthread_setup + 300 (inline_internal.h:128)
3   libsystem_pthread.dylib       	0x0000000251225fd0 _pthread_wqthread + 52 (pthread.c:2568)
4   libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8

Thread 86:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x00000002512265f0 _pthread_wqthread_setup + 300 (inline_internal.h:128)
3   libsystem_pthread.dylib       	0x0000000251225fd0 _pthread_wqthread + 52 (pthread.c:2568)
4   libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8

Thread 87:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x00000002512265f0 _pthread_wqthread_setup + 300 (inline_internal.h:128)
3   libsystem_pthread.dylib       	0x0000000251225fd0 _pthread_wqthread + 52 (pthread.c:2568)
4   libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8

Thread 88:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x00000002512265f0 _pthread_wqthread_setup + 300 (inline_internal.h:128)
3   libsystem_pthread.dylib       	0x0000000251225fd0 _pthread_wqthread + 52 (pthread.c:2568)
4   libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8

Thread 89:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x00000002512265f0 _pthread_wqthread_setup + 300 (inline_internal.h:128)
3   libsystem_pthread.dylib       	0x0000000251225fd0 _pthread_wqthread + 52 (pthread.c:2568)
4   libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8

Thread 90:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x00000002512265f0 _pthread_wqthread_setup + 300 (inline_internal.h:128)
3   libsystem_pthread.dylib       	0x0000000251225fd0 _pthread_wqthread + 52 (pthread.c:2568)
4   libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8

Thread 91:
0   libsystem_kernel.dylib        	0x0000000217c08178 __ulock_wait + 8
1   libsystem_platform.dylib      	0x000000025121d9ac _os_unfair_lock_lock_slow + 172 (lock.c:578)
2   libsystem_pthread.dylib       	0x00000002512265f0 _pthread_wqthread_setup + 300 (inline_internal.h:128)
3   libsystem_pthread.dylib       	0x0000000251225fd0 _pthread_wqthread + 52 (pthread.c:2568)
4   libsystem_pthread.dylib       	0x0000000251225e5c start_wqthread + 8


Thread 0 crashed with ARM Thread State (64-bit):
    x0: 0xfffffffffffffffc   x1: 0x0000000000000000   x2: 0x0000000000001e02   x3: 0x0000000000000000
    x4: 0x000000016d269a40   x5: 0x0000000000000020   x6: 0x0000000000000003   x7: 0x00000001120fc000
    x8: 0x0000000000001e02   x9: 0x0000000000001e03  x10: 0x0000000236f1f374  x11: 0x0000000000000001
   x12: 0x0000000000000003  x13: 0x0000000000000028  x14: 0x000000000000000e  x15: 0x0000000000000007
   x16: 0x0000000000000203  x17: 0x00000001ec65f3f4  x18: 0x0000000000000000  x19: 0x0000000000000103
   x20: 0x0000000236f1f374  x21: 0x0000000001000002  x22: 0x0000000000001e02  x23: 0x0000000000000000
   x24: 0x0000000000000000  x25: 0x0000000000000103  x26: 0x0000000000000000  x27: 0x0000000000000001
   x28: 0x0000000236f1f4a0   fp: 0x000000016d269900   lr: 0x000000025121d9ac
    sp: 0x000000016d2698c0   pc: 0x0000000217c08178 cpsr: 0x40000000
   esr: 0x56000080  Address size fault


Binary Images:
0x102b94000 - 0x10644ffff xxxxxxxxx arm64  <af873fac2cf033ffa1d2ff5a643c5f14> /private/var/containers/Bundle/Application/D00700E-2E45-4E8C-9F9E-67F1758DC138/xxxxxxxxx.app/xxxxxxxxx
0x107914000 - 0x10796bfff dyld arm64e  <d16b72c0d6193e4892622c10a1d3066f> /usr/lib/dyld
0x1dff01000 - 0x1dff46fff libdispatch.dylib arm64e  <69dac9c7ddaf318eb068be596d142a2f> /usr/lib/system/libdispatch.dylib
0x1e0204000 - 0x1e0659fff CoreFoundation arm64e  <d2716f2f688b3d51ba8b17e6553b209e> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x1e0a22000 - 0x1e0ee2fff CFNetwork arm64e  <eae64611a84036fea69d5658f1bcf4d0> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x1e19f2000 - 0x1e1cfafff Foundation arm64e  <feeef9b1b0e63561adfa3ef0302d23f8> /System/Library/Frameworks/Foundation.framework/Foundation
0x1e2675000 - 0x1e3f0ffff UIKitCore arm64e  <e6e89bb5b5863725bf8f4c85dcd443bd> /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore
0x1e3f36000 - 0x1e4245fff QuartzCore arm64e  <99f5580ff6d0300cac7049606b1b97e8> /System/Library/Frameworks/QuartzCore.framework/QuartzCore
0x1e9806000 - 0x1e9830fff AudioSession arm64e  <37d438b9289d39b08b671b38de65305f> /System/Library/PrivateFrameworks/AudioSession.framework/AudioSession
0x1eaeb8000 - 0x1eb147fff AudioToolbox arm64e  <086d5b9a0afa3f34bd55e09e64a534fa> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox
0x1eb360000 - 0x1eb3dffff libsystem_c.dylib arm64e  <b0793d31ed1b3549b86192a10841bf68> /usr/lib/system/libsystem_c.dylib
0x1eb438000 - 0x1ec7adfff JavaScriptCore arm64e  <eb88f8f94ec13c55bcd28065148b0ee2> /System/Library/Frameworks/JavaScriptCore.framework/JavaScriptCore
0x1ed56c000 - 0x1ed885fff CoreMotion arm64e  <ef937a0ff72c32cd9376027a392d54e4> /System/Library/Frameworks/CoreMotion.framework/CoreMotion
0x1eeda8000 - 0x1ef7eafff WebKit arm64e  <69b282823608313eaefa79951de6a25f> /System/Library/Frameworks/WebKit.framework/WebKit
0x1f5e18000 - 0x1f625cfff VideoToolbox arm64e  <d54369136d9c37a181d303f201bb274c> /System/Library/Frameworks/VideoToolbox.framework/VideoToolbox
0x1f8f95000 - 0x1f8ffbfff libc++.1.dylib arm64e  <157d84a7b8973c9bb31dcc81c2bf934f> /usr/lib/libc++.1.dylib
0x1f98ad000 - 0x1f98e0fff libAudioToolboxUtility.dylib arm64e  <bd379c2151623f0cb804c20856d9ec33> /usr/lib/libAudioToolboxUtility.dylib
0x1fc2bc000 - 0x1fc2c4fff GraphicsServices arm64e  <75a910dc87a43b3a8c0ea868b945f5d4> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
0x217c06000 - 0x217c3bfff libsystem_kernel.dylib arm64e  <c2fcc05874803c14b4790064a3f843e3> /usr/lib/system/libsystem_kernel.dylib
0x25121d000 - 0x251223fff libsystem_platform.dylib arm64e  <3b2d31b3499136cc8d6a08a26cc1ca59> /usr/lib/system/libsystem_platform.dylib
0x251225000 - 0x251230fff libsystem_pthread.dylib arm64e  <b48efcbed4f7308ba3fa172e0ea78e33> /usr/lib/system/libsystem_pthread.dylib

EOF
0
aaacsc
aaacsc OP
Mar ’22

Our app also encountered a similar problem. Do you have a solution?

0
jocelynnnn
jocelynnnn OP
Mar ’22

Same here!!!!!

0
Apple Staff, DTS Engineer
DTS Engineer OP
Apple
Mar ’22

Refer to the full crash report in the attachment

Thanks for that.

'...' means I removed some stack of our image

Unfortunately that’s a problem. Posting a Crash Report has advice on how to redact stuff, and I crafted that advice carefully. One weapon in my crash-analysis arsenal is a set of Apple internal tools that does… well… lots of helpful stuff. Those tools need a full Apple crash report. If you redact it in ad hoc ways, I can’t be sure I’ll get valid results.

Please repost your crash report, redacted as per my advice, and I’ll take another look.

Alternatively, if you’re OK with sharing the crash report privately, feel free to email it to me (my address is in my signature). Make sure to include a reference to this thread; I get a lot of email (-:

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

0
codefei
codefei OP
Mar ’22

The main thread is waiting for the _pthread_list_lock that is held by thread 82. And Thread 82 seems paused by the JavaScript scavenger thread 2, thread 2 also called pthread_mach_thread_np. In this situation, the _pthread_list_lock will not unlock. The app will be force killed by the watchdog.

By the way, thread 82 is created by the gcd queue. If we do not use the gcd queue will avoid the issue.

Does apple notice the serious bug? Some implementation changes on iOS15.4 may lead to the issue, such as the JavaScript scavenger? Hope apple fix the system issue quickly.

0
Apple Staff, DTS Engineer
DTS Engineer OP
Apple
Apr ’22
Accepted Answer

I had reason to dig into this issue in another context and it seems that this is an issue we’re tracking (r. 89020902). AFAICT this should be fixed in the iOS 15.5b1 (19F5047e) that we’re currently seeding. If you still see the problem on that release, or anything later, please let us know.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

0
RuiB
RuiB OP
Apr ’22

@eskimo could you please take a look at a similar issue, possibly related? https://developer.apple.com/forums/edit/question/704718021

0
fengnianji
fengnianji OP
Oct ’23

How to avoid this on iOS15.4, we still have a lot user.

0
Apple Staff, DTS Engineer
DTS Engineer OP
Apple
Oct ’23

You should advise those users to upgrade to the latest version of iOS 15. This should help with this problem, but it also includes a bunch of important security fixes.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

0
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