setReadHandler handler called repeatedly when switching from wifi to mobile data and back to wifi.

[simpzan]

When I switch network type from wifi to mobile and then back to mobile, there will be a lot of logs like following. and cpu usage is around 180%. between switching, I made a few http requests.

Oct 14 22:16:40 simpzan-iPhone PacketTunnel-iOS[2889] <Critical>: Error when reading from remote server. Optional(Error Domain=NSPOSIXErrorDomain Code=22 "Invalid argument")

I add a little code to force crash the process when the issue happens to get the crash log.
simpzan@9da0a31
Do you encounter this issue? It is nearly 100% reproducible here.

Incident Identifier: EA61F6DE-3624-4FF9-A375-DF808865C25A
CrashReporter Key:   f2b536e05332f120584e58d94612d7d77c0bfa7d
Hardware Model:      iPhone8,4
Process:             PacketTunnel-iOS [2889]
Path:                /private/var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/PlugIns/PacketTunnel-iOS.appex/PacketTunnel-iOS
Identifier:          com.simpzan.Shadow-iOS.PacketTunnel-iOS
Version:             1 (1.0)
Code Type:           ARM-64 (Native)
Parent Process:      launchd [1]

Date/Time:           2016-10-14 22:16:40.40 +0800
Launch Time:         2016-10-14 22:15:56.56 +0800
OS Version:          iOS 9.3.3 (13G34)
Report Version:      105

Exception Type:  EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x00000001006b6f1c
Triggered by Thread:  1

Filtered syslog:
None found

Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0:
0   libsystem_kernel.dylib          0x00000001808c8fd8 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x00000001808c8e54 mach_msg + 72
2   CoreFoundation                  0x0000000180d00c60 __CFRunLoopServiceMachPort + 196
3   CoreFoundation                  0x0000000180cfe964 __CFRunLoopRun + 1032
4   CoreFoundation                  0x0000000180c28c50 CFRunLoopRunSpecific + 384
5   Foundation                      0x0000000181638cfc -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 308
6   Foundation                      0x000000018168e030 -[NSRunLoop(NSRunLoop) run] + 88
7   libxpc.dylib                    0x00000001809ecc64 _xpc_objc_main + 660
8   libxpc.dylib                    0x00000001809ee9dc xpc_main + 200
9   Foundation                      0x000000018180bd60 service_connection_handler + 0
10  PlugInKit                       0x000000018804ec48 -[PKService run] + 544
11  PlugInKit                       0x000000018804e8dc +[PKService main] + 56
12  PlugInKit                       0x000000018804ec6c +[PKService _defaultRun:arguments:] + 20
13  libextension.dylib              0x000000018161e058 NSExtensionMain + 64
14  libdyld.dylib                   0x00000001807c68b8 start + 4

Thread 1 name:  Dispatch queue: Network.framework
Thread 1 Crashed:
0   libswiftCore.dylib              0x00000001006b6f1c 0x100578000 + 1306396
1   libswiftCore.dylib              0x00000001006b6f1c 0x100578000 + 1306396
2   NEKit                           0x00000001003f61e0 NWUDPSocket.(init(host : String, port : Int) -> NWUDPSocket?).(closure #1) (NWUDPSocket.swift:59)
3   NEKit                           0x00000001003f63d4 thunk (NWUDPSocket.swift:0)
4   Network                         0x000000018b7a13a4 __44-[NWUDPSession setReadHandler:maxDatagrams:]_block_invoke + 196
5   libnetwork.dylib                0x000000018b770498 __nw_udp_session_handle_read_block_invoke + 100
6   libdispatch.dylib               0x00000001807954bc _dispatch_call_block_and_release + 24
7   libdispatch.dylib               0x000000018079547c _dispatch_client_callout + 16
8   libdispatch.dylib               0x00000001807a14c0 _dispatch_queue_drain + 864
9   libdispatch.dylib               0x0000000180798f80 _dispatch_queue_invoke + 464
10  libdispatch.dylib               0x00000001807a3390 _dispatch_root_queue_drain + 728
11  libdispatch.dylib               0x00000001807a30b0 _dispatch_worker_thread3 + 112
12  libsystem_pthread.dylib         0x00000001809ad470 _pthread_wqthread + 1092
13  libsystem_pthread.dylib         0x00000001809ad020 start_wqthread + 4

Thread 2 name:  Dispatch queue: com.apple.libdispatch-manager
Thread 2:
0   libsystem_kernel.dylib          0x00000001808e54d8 kevent_qos + 8
1   libdispatch.dylib               0x00000001807a87d8 _dispatch_mgr_invoke + 232
2   libdispatch.dylib               0x0000000180797648 _dispatch_source_invoke + 0

Thread 3:
0   libsystem_kernel.dylib          0x00000001808e4b48 __workq_kernreturn + 8
1   libsystem_pthread.dylib         0x00000001809ad530 _pthread_wqthread + 1284
2   libsystem_pthread.dylib         0x00000001809ad020 start_wqthread + 4

Thread 4:
0   libsystem_kernel.dylib          0x00000001808e4b48 __workq_kernreturn + 8
1   libsystem_pthread.dylib         0x00000001809ad530 _pthread_wqthread + 1284
2   libsystem_pthread.dylib         0x00000001809ad020 start_wqthread + 4

Thread 5:
0   libsystem_kernel.dylib          0x00000001808e4b48 __workq_kernreturn + 8
1   libsystem_pthread.dylib         0x00000001809ad530 _pthread_wqthread + 1284
2   libsystem_pthread.dylib         0x00000001809ad020 start_wqthread + 4

Thread 6 name:  com.apple.NSURLConnectionLoader
Thread 6:
0   libsystem_kernel.dylib          0x00000001808c8fd8 mach_msg_trap + 8
1   libsystem_kernel.dylib          0x00000001808c8e54 mach_msg + 72
2   CoreFoundation                  0x0000000180d00c60 __CFRunLoopServiceMachPort + 196
3   CoreFoundation                  0x0000000180cfe964 __CFRunLoopRun + 1032
4   CoreFoundation                  0x0000000180c28c50 CFRunLoopRunSpecific + 384
5   CFNetwork                       0x00000001813a9bcc +[NSURLConnection(Loader) _resourceLoadLoop:] + 412
6   Foundation                      0x000000018171fe4c __NSThread__start__ + 1000
7   libsystem_pthread.dylib         0x00000001809afb28 _pthread_body + 156
8   libsystem_pthread.dylib         0x00000001809afa8c _pthread_body + 0
9   libsystem_pthread.dylib         0x00000001809ad028 thread_start + 4

Thread 7 name:  com.apple.CFSocket.private
Thread 7:
0   libsystem_kernel.dylib          0x00000001808e4344 __select + 8
1   CoreFoundation                  0x0000000180d071c8 __CFSocketManager + 648
2   libsystem_pthread.dylib         0x00000001809afb28 _pthread_body + 156
3   libsystem_pthread.dylib         0x00000001809afa8c _pthread_body + 0
4   libsystem_pthread.dylib         0x00000001809ad028 thread_start + 4

Thread 8:
0   libsystem_kernel.dylib          0x00000001808e4b48 __workq_kernreturn + 8
1   libsystem_pthread.dylib         0x00000001809ad530 _pthread_wqthread + 1284
2   libsystem_pthread.dylib         0x00000001809ad020 start_wqthread + 4

Thread 9:
0   libsystem_kernel.dylib          0x00000001808e4b48 __workq_kernreturn + 8
1   libsystem_pthread.dylib         0x00000001809ad530 _pthread_wqthread + 1284
2   libsystem_pthread.dylib         0x00000001809ad020 start_wqthread + 4

Thread 1 crashed with ARM Thread State (64-bit):
    x0: 0x0000000000000000   x1: 0x00000001809a68f4   x2: 0x0000000136d51da0   x3: 0x0000000000000008
    x4: 0x0000000000000000   x5: 0x0000000000000020   x6: 0x0000000000000000   x7: 0x0000000000000fa0
    x8: 0x0000000100e9d408   x9: 0x0000000000004000  x10: 0x0000000136d54000  x11: 0x0000000000003fff
   x12: 0x0000000136d50000  x13: 0x0000000000003fff  x14: 0xffffffffffffc000  x15: 0x0000000000003fff
   x16: 0x0000000180910168  x17: 0x0000000100778040  x18: 0x0000000000000000  x19: 0x0000000000000000
   x20: 0x0000000000000044  x21: 0x0000000000000039  x22: 0x000000010042d4d0  x23: 0x0000000000000002
   x24: 0x0000000136d527d0  x25: 0x00000001007a9720  x26: 0x000000010042d540  x27: 0x0000000000000010
   x28: 0x0000000000010001  fp: 0x000000016e0869a0   lr: 0x00000001006b6f1c
    sp: 0x000000016e086940   pc: 0x00000001006b6f1c cpsr: 0x80000000

Binary Images:
0x100068000 - 0x10007bfff PacketTunnel-iOS arm64  <2338c5d05ca6300c827629edfe17db89> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/PlugIns/PacketTunnel-iOS.appex/PacketTunnel-iOS
0x1000b4000 - 0x1000b7fff MobileSubstrate.dylib arm64  <3134cfb2f722310ea2c742ae4dc131ab> /Library/MobileSubstrate/MobileSubstrate.dylib
0x1000c4000 - 0x100103fff CocoaAsyncSocket arm64  <5fedd920609f34cc969514754df22e13> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/CocoaAsyncSocket.framework/CocoaAsyncSocket
0x10024c000 - 0x10026bfff CocoaLumberjack arm64  <896f2818601c366383229600ff0325a1> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/CocoaLumberjack.framework/CocoaLumberjack
0x100318000 - 0x100323fff MMWormhole arm64  <bc7af9f238ee3b248080c71a194abe07> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/MMWormhole.framework/MMWormhole
0x100360000 - 0x100367fff RHRevealLoader.dylib arm64  <786cede9735f3a29b5d7939366053d57> /Library/MobileSubstrate/DynamicLibraries/RHRevealLoader.dylib
0x10037c000 - 0x100433fff NEKit arm64  <098e76fb96ae336e8263477d3ad598e4> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/NEKit.framework/NEKit
0x100578000 - 0x100777fff libswiftCore.dylib arm64  <160a815885033b4db08d3aa94ac06413> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/libswiftCore.dylib
0x1009b8000 - 0x1009c3fff libswiftCoreGraphics.dylib arm64  <c685370568a7357a892b4d3a6988cf1a> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/libswiftCoreGraphics.dylib
0x1009d8000 - 0x1009dffff libswiftCoreImage.dylib arm64  <2844310aca6b3065b95998a211349d0e> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/libswiftCoreImage.dylib
0x1009f0000 - 0x1009f7fff libswiftDarwin.dylib arm64  <5bba14fccdf032e28baa867a05052262> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/libswiftDarwin.dylib
0x100a14000 - 0x100a1bfff libswiftDispatch.dylib arm64  <824a17f74200332b829d35895e9082ec> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/libswiftDispatch.dylib
0x100a30000 - 0x100a6bfff libswiftFoundation.dylib arm64  <82511703757935b5896edf3a94c1e4f6> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/libswiftFoundation.dylib
0x100abc000 - 0x100ac3fff libswiftObjectiveC.dylib arm64  <56af7ca1e2e635ee8273bef66ff0c119> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/libswiftObjectiveC.dylib
0x100ae0000 - 0x100aebfff libswiftUIKit.dylib arm64  <6355134b558732ce8e34790dc6145970> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/libswiftUIKit.dylib
0x100af8000 - 0x100afffff SSFLEXLoader.dylib arm64  <38d39740e71634ce9f65d04954a3ea97> /Library/MobileSubstrate/DynamicLibraries/SSFLEXLoader.dylib
0x100b10000 - 0x100b17fff libswiftWatchConnectivity.dylib arm64  <a10cdcbe8a4530dfa4b8410ed01ccfae> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/libswiftWatchConnectivity.dylib
0x100b24000 - 0x100b2bfff CocoaLumberjackSwift arm64  <32914796c8113e99b879c8a16c0c003f> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/CocoaLumberjackSwift.framework/CocoaLumberjackSwift
0x100b60000 - 0x100b67fff CommonCrypto arm64  <fdd76ba82c243d22a1801e82d63fb677> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/CommonCrypto.framework/CommonCrypto
0x100b74000 - 0x100b83fff lwip arm64  <d7a8ff4398823cf497354bb3cd08579d> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/lwip.framework/lwip
0x100bdc000 - 0x100bebfff MMDB arm64  <489778cd3e4a3544a93a63e5786d1b74> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/MMDB.framework/MMDB
0x100c38000 - 0x100c5ffff Sodium arm64  <31cffc6b43f03a05b514bc4021ab3b91> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/Sodium.framework/Sodium
0x100cd0000 - 0x100cdbfff tun2socks arm64  <0b8fca639757376eae50fa0b9ffc4865> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/tun2socks.framework/tun2socks
0x100d1c000 - 0x100d4ffff Yaml arm64  <97bb5768fd163df8a615f2839b70426c> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/Yaml.framework/Yaml
0x100e84000 - 0x100e8bfff libswiftContacts.dylib arm64  <a6629800411534029d5fe5e53b462ec4> /var/containers/Bundle/Application/5B488804-E273-4785-BE24-E40C8EEAA4B4/Shadow-iOS.app/Frameworks/libswiftContacts.dylib
0x1010d8000 - 0x1010dbfff SubstrateLoader.dylib arm64  <54645dc0321231d88a022fd67a793278> /Library/Frameworks/CydiaSubstrate.framework/Libraries/SubstrateLoader.dylib
0x101104000 - 0x10111bfff CydiaSubstrate arm64  <ffa3562ce21d3fa1a2df98d17214503e> /Library/Frameworks/CydiaSubstrate.framework/CydiaSubstrate
0x101124000 - 0x10120ffff libcycript.dylib arm64  <03d674843c723c10b1146dcb7267074c> /usr/lib/libcycript.dylib
0x1200a0000 - 0x1200cffff dyld arm64  <a1862e29910f3f069a363730df77dad7> /usr/lib/dyld
0x180330000 - 0x180331fff libSystem.B.dylib arm64  <5bb501a091dc3a22a5544d34a4312de1> /usr/lib/libSystem.B.dylib
0x180334000 - 0x180386fff libc++.1.dylib arm64  <9ec0d9dcf728349582c26a7da72f0364> /usr/lib/libc++.1.dylib
0x180388000 - 0x1803a7fff libc++abi.dylib arm64  <aaa40b7f52513cf79c6f814b133556a7> /usr/lib/libc++abi.dylib
0x1803a8000 - 0x180714fff libobjc.A.dylib arm64  <939f392022903f2da2858e676e4191ef> /usr/lib/libobjc.A.dylib
0x180718000 - 0x18071cfff libcache.dylib arm64  <43424f4c7252330ca92c1a865da896e1> /usr/lib/system/libcache.dylib
0x180720000 - 0x18072bfff libcommonCrypto.dylib arm64  <e47d758d207e32c8ab546b59785d2ab8> /usr/lib/system/libcommonCrypto.dylib
0x18072c000 - 0x18072ffff libcompiler_rt.dylib arm64  <b77c451c7ffb356fb3c8368cac95d8f3> /usr/lib/system/libcompiler_rt.dylib
0x180730000 - 0x180737fff libcopyfile.dylib arm64  <1c1678aa36073b42b4406c6dbb06e9f0> /usr/lib/system/libcopyfile.dylib
0x180738000 - 0x180793fff libcorecrypto.dylib arm64  <b42ff635d1303d45bafe057e5a1e6243> /usr/lib/system/libcorecrypto.dylib
0x180794000 - 0x1807c2fff libdispatch.dylib arm64  <65568801b7463adeb6e20dc25d14d801> /usr/lib/system/libdispatch.dylib
0x1807c4000 - 0x1807c6fff libdyld.dylib arm64  <69ea263c8ab93db49b98a24fbd6eb392> /usr/lib/system/libdyld.dylib
0x1807c8000 - 0x1807c8fff liblaunch.dylib arm64  <fbb5f1442c3039188da689963efde4d8> /usr/lib/system/liblaunch.dylib
0x1807cc000 - 0x1807d0fff libmacho.dylib arm64  <1f37b179ad26307192b3b763ba5f816a> /usr/lib/system/libmacho.dylib
0x1807d4000 - 0x1807d5fff libremovefile.dylib arm64  <267c6cbaf2193309bd8a191fad38cc79> /usr/lib/system/libremovefile.dylib
0x1807d8000 - 0x1807eefff libsystem_asl.dylib arm64  <fffe50d37b1c3f92af6f4a68a6d60068> /usr/lib/system/libsystem_asl.dylib
0x1807f0000 - 0x1807f1fff libsystem_blocks.dylib arm64  <8bbf799e57f93ed1be24cf2ce6c221a3> /usr/lib/system/libsystem_blocks.dylib
0x1807f4000 - 0x180873fff libsystem_c.dylib arm64  <c3408ef0608b3d68acc24d59d6af9528> /usr/lib/system/libsystem_c.dylib
0x180874000 - 0x180877fff libsystem_configuration.dylib arm64  <c5ce1ced5659354ab63871b42d04a7cd> /usr/lib/system/libsystem_configuration.dylib
0x180878000 - 0x18087bfff libsystem_containermanager.dylib arm64  <504648cfa43d3668b9678b74e33697f2> /usr/lib/system/libsystem_containermanager.dylib
0x18087c000 - 0x18087dfff libsystem_coreservices.dylib arm64  <8f94549c633036aa99efb0f067031a05> /usr/lib/system/libsystem_coreservices.dylib
0x180880000 - 0x180896fff libsystem_coretls.dylib arm64  <498e424eb31f3d5cb49523cec07f339d> /usr/lib/system/libsystem_coretls.dylib
0x180898000 - 0x1808a0fff libsystem_dnssd.dylib arm64  <573c3639fde83e87885bfe02c057538d> /usr/lib/system/libsystem_dnssd.dylib
0x1808a4000 - 0x1808c6fff libsystem_info.dylib arm64  <932df5ba705a3b6d948c5dcff196ea6b> /usr/lib/system/libsystem_info.dylib
0x1808c8000 - 0x1808e9fff libsystem_kernel.dylib arm64  <18bda76f38f93376900d6dab355c191f> /usr/lib/system/libsystem_kernel.dylib
0x1808ec000 - 0x180908fff libsystem_m.dylib arm64  <a97bf91d4a233dbc94bef06734a2eac0> /usr/lib/system/libsystem_m.dylib
0x18090c000 - 0x180925fff libsystem_malloc.dylib arm64  <a8af95191b283ca9aa7f9cf80c459bf5> /usr/lib/system/libsystem_malloc.dylib
0x180928000 - 0x18098bfff libsystem_network.dylib arm64  <a8e4200aecc73e56a8458a0e9cb4a6f0> /usr/lib/system/libsystem_network.dylib
0x18098c000 - 0x180995fff libsystem_networkextension.dylib arm64  <d1a7579c71943631845c2908d69bfbc6> /usr/lib/system/libsystem_networkextension.dylib
0x180998000 - 0x1809a2fff libsystem_notify.dylib arm64  <da8d7d155da230d287a67c46e9b3ccbc> /usr/lib/system/libsystem_notify.dylib
0x1809a4000 - 0x1809a9fff libsystem_platform.dylib arm64  <4386956061113d7a9e415e543b1243bc> /usr/lib/system/libsystem_platform.dylib
0x1809ac000 - 0x1809b4fff libsystem_pthread.dylib arm64  <73c5c182a73d38a3b0a3a1f496289278> /usr/lib/system/libsystem_pthread.dylib
0x1809b8000 - 0x1809bafff libsystem_sandbox.dylib arm64  <1188d6b10703327cb5d72a5623200c30> /usr/lib/system/libsystem_sandbox.dylib
0x1809bc000 - 0x1809ccfff libsystem_trace.dylib arm64  <f89ac4edeffb3694a894efa7742b0f1f> /usr/lib/system/libsystem_trace.dylib
0x1809d0000 - 0x1809d5fff libunwind.dylib arm64  <b0067e5ea3ca3b28abc5cb7d50390363> /usr/lib/system/libunwind.dylib
0x1809d8000 - 0x1809d8fff libvminterpose.dylib arm64  <630bf4c89edf3935b7afe56abdb5caad> /usr/lib/system/libvminterpose.dylib
0x1809dc000 - 0x180a01fff libxpc.dylib arm64  <fc63a0a505523f7fac2c4ea9d9662ba1> /usr/lib/system/libxpc.dylib
0x180a04000 - 0x180c09fff libicucore.A.dylib arm64  <d1856fdadee0393ebd636fa4020a454b> /usr/lib/libicucore.A.dylib
0x180c0c000 - 0x180c1dfff libz.1.dylib arm64  <8fcb56adfdc13e9593582266b1e4ac18> /usr/lib/libz.1.dylib
0x180c20000 - 0x180fa0fff CoreFoundation arm64  <182fd72b7fdf330b8dbf70db93af6b63> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x180fa4000 - 0x180fb4fff libbsm.0.dylib arm64  <d045301bcacc37d785d754d5c978d979> /usr/lib/libbsm.0.dylib
0x180fb8000 - 0x180fb8fff libenergytrace.dylib arm64  <c4ee08bffdfc3ce0990c1fbeb858f9dc> /usr/lib/libenergytrace.dylib
0x180fbc000 - 0x18102dfff IOKit arm64  <0864d9c20424332d8979a4f548848c16> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x181030000 - 0x181050fff libMobileGestalt.dylib arm64  <9cc485a12c323768a6b6e88d973bd44e> /usr/lib/libMobileGestalt.dylib
0x181054000 - 0x18113efff libxml2.2.dylib arm64  <d6c7d4fa4ab033ea94a89058ae09b14b> /usr/lib/libxml2.2.dylib
0x181140000 - 0x1811b2fff Security arm64  <4c7468d385513e4db673ec80c318ee20> /System/Library/Frameworks/Security.framework/Security
0x1811b4000 - 0x18120dfff SystemConfiguration arm64  <92717250c7393c44878d137773604d46> /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
0x181210000 - 0x1812f8fff libsqlite3.dylib arm64  <c703a175f1c43ed28d81b839ba961183> /usr/lib/libsqlite3.dylib
0x1812fc000 - 0x181590fff CFNetwork arm64  <e65cd15333e435b5975900dc9111f58b> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x181594000 - 0x1815a1fff libbz2.1.0.dylib arm64  <8ebfd413e3fd3889b546857fcf554b6f> /usr/lib/libbz2.1.0.dylib
0x1815a4000 - 0x1815bdfff liblzma.5.dylib arm64  <68bb861dc8bd3547b5ace073ed504b14> /usr/lib/liblzma.5.dylib
0x1815c0000 - 0x1815dafff libCRFSuite.dylib arm64  <1a2c1f709f213faf81fd2223b719c899> /usr/lib/libCRFSuite.dylib
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0x18162c000 - 0x18189afff Foundation arm64  <7cf4edf781cb30438b812ded8716cd95> /System/Library/Frameworks/Foundation.framework/Foundation
0x18189c000 - 0x181947fff libBLAS.dylib arm64  <097b7e769a3439ad8fdb3abb0edc9daf> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libBLAS.dylib
0x181948000 - 0x181cadfff libLAPACK.dylib arm64  <566419f65c9338599694a04da8e20fbf> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libLAPACK.dylib
0x181cb0000 - 0x181f15fff vImage arm64  <789df1b35e183397803583a25feff3c7> /System/Library/Frameworks/Accelerate.framework/Frameworks/vImage.framework/vImage
0x181f18000 - 0x181f3afff libvMisc.dylib arm64  <3c655ae6f62035bbba069387c490efbb> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvMisc.dylib
0x181f3c000 - 0x181f4ffff libLinearAlgebra.dylib arm64  <94d099e954d638e39ef1773639ef61af> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libLinearAlgebra.dylib
0x181f50000 - 0x181f5ffff libSparseBLAS.dylib arm64  <80ca4fb770613c76b2449daf05c6dc25> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libSparseBLAS.dylib
0x181f60000 - 0x181fccfff libvDSP.dylib arm64  <f4e8d68f55af3511a28a616737dcc354> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvDSP.dylib
0x181fd0000 - 0x181fd0fff vecLib arm64  <546ad53c3a4a36709fdf6e50b76b2ec9> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/vecLib
0x181fd4000 - 0x181fd4fff Accelerate arm64  <a1953e95570a3de6a923a812ffbd90ad> /System/Library/Frameworks/Accelerate.framework/Accelerate
0x181fd8000 - 0x182503fff CoreGraphics arm64  <f58e942f6bd039dc8de98619e53500bf> /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
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0x182568000 - 0x18263bfff MobileCoreServices arm64  <2096d560a53b3fd28ff0a7f46e3ba060> /System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices
0x18263c000 - 0x18268bfff BaseBoard arm64  <b6f2014b564430538f5252776acfa530> /System/Library/PrivateFrameworks/BaseBoard.framework/BaseBoard
0x18268c000 - 0x182697fff AssertionServices arm64  <48c978bd14553765b4a7f1cee1b14c83> /System/Library/PrivateFrameworks/AssertionServices.framework/AssertionServices
0x182698000 - 0x1826bcfff BackBoardServices arm64  <207836d8c1833eeab468f622f4d0f366> /System/Library/PrivateFrameworks/BackBoardServices.framework/BackBoardServices
0x1826c0000 - 0x1826c3fff MobileSystemServices arm64  <6d85ae92680935bbb51db96c7a021118> /System/Library/PrivateFrameworks/MobileSystemServices.framework/MobileSystemServices
0x1826c4000 - 0x1826f9fff FrontBoardServices arm64  <b1a46eb324d23a51813b565ae7f04b88> /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices
0x1826fc000 - 0x182706fff UserNotificationServices arm64  <74d3e76dff833048b39ae8e0ceb44140> /System/Library/PrivateFrameworks/UserNotificationServices.framework/UserNotificationServices
0x182708000 - 0x182734fff SpringBoardServices arm64  <6535787e172939d0b8abfe852a185b3d> /System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices
0x182738000 - 0x182749fff MobileKeyBag arm64  <169edc8949693d349807056d1e316f2a> /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag
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0x1827c0000 - 0x182ae3fff ImageIO arm64  <985b712758c43d62a2104d9e708fb2e9> /System/Library/Frameworks/ImageIO.framework/ImageIO
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0x182af4000 - 0x182b01fff PowerLog arm64  <a50ba8508d733823be55425db249606c> /System/Library/PrivateFrameworks/PowerLog.framework/PowerLog
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0x182de0000 - 0x182de4fff libCoreVMClient.dylib arm64  <69b5ba7317d532b898c3ffb5574bb883> /System/Library/Frameworks/OpenGLES.framework/libCoreVMClient.dylib
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0x182df8000 - 0x182e3efff libGLImage.dylib arm64  <e67acd0811bf318dadb48a49b97bee7b> /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib
0x182e40000 - 0x182e4afff libGFXShared.dylib arm64  <fdc295986ea03203bbfc904ffc4cca6b> /System/Library/Frameworks/OpenGLES.framework/libGFXShared.dylib
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0x182e54000 - 0x182e54fff libmetal_timestamp.dylib arm64  <bdc8f33a1b453c8f827726c7f46640dc> /System/Library/PrivateFrameworks/GPUCompiler.framework/libmetal_timestamp.dylib
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0x182ea0000 - 0x182eaafff OpenGLES arm64  <7c7a0c5191f53f518e994638139ca1df> /System/Library/Frameworks/OpenGLES.framework/OpenGLES
0x182eac000 - 0x182ecefff CoreVideo arm64  <31ef8b764af3301ea5e7267fcae838cb> /System/Library/Frameworks/CoreVideo.framework/CoreVideo
0x182ed0000 - 0x182ed2fff OAuth arm64  <0f1ae5abcad13b4b948193a2405c61b4> /System/Library/PrivateFrameworks/OAuth.framework/OAuth
0x182edc000 - 0x182f13fff Accounts arm64  <1cf893c2c3c03137acb576d5a7fc2cee> /System/Library/Frameworks/Accounts.framework/Accounts
0x182f14000 - 0x183006fff libiconv.2.dylib arm64  <1c378c57054a32a6b2eed4e3cbb3a2b7> /usr/lib/libiconv.2.dylib
0x183008000 - 0x1830c1fff CoreAudio arm64  <25687ef4b3c4389f828006882b280db4> /System/Library/Frameworks/CoreAudio.framework/CoreAudio
0x1830c4000 - 0x1830c7fff UserFS arm64  <693602c29c64370aab1a77544ddc7e5a> /System/Library/PrivateFrameworks/UserFS.framework/UserFS
0x1830c8000 - 0x1831b6fff CoreMedia arm64  <e4b8c027690c3a268d47209f071ea0b7> /System/Library/Frameworks/CoreMedia.framework/CoreMedia
0x1831b8000 - 0x1831c0fff libcupolicy.dylib arm64  <056df1f0f2893ad08b9c7fbed9271c6f> /usr/lib/libcupolicy.dylib
0x1831c4000 - 0x183236fff CoreTelephony arm64  <d48572ad7be13a99b7a783c12c6657f4> /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony
0x183238000 - 0x183318fff libFontParser.dylib arm64  <7ab9c32919d731969bc2a75b3f03aa17> /System/Library/PrivateFrameworks/FontServices.framework/libFontParser.dylib
0x18331c000 - 0x18339efff VideoToolbox arm64  <96c874d7271f3ec18a39b6de15ef6384> /System/Library/Frameworks/VideoToolbox.framework/VideoToolbox
0x1833a0000 - 0x1833a0fff FontServices arm64  <39a3005cf101328f94f3a412cfa04fae> /System/Library/PrivateFrameworks/FontServices.framework/FontServices
0x1833a4000 - 0x1834c7fff CoreText arm64  <688f036ee040335aaf44f555b7b98ace> /System/Library/Frameworks/CoreText.framework/CoreText
0x1834c8000 - 0x1834d9fff ProtocolBuffer arm64  <4d1a9d53f37b3b448cbc62ede839532f> /System/Library/PrivateFrameworks/ProtocolBuffer.framework/ProtocolBuffer
0x1834dc000 - 0x183503fff PersistentConnection arm64  <57092c3dc97437f9a14b61cae9e60e88> /System/Library/PrivateFrameworks/PersistentConnection.framework/PersistentConnection
0x183504000 - 0x183509fff DataMigration arm64  <ba39fefdd4d530108117d3cce9c24d80> /System/Library/PrivateFrameworks/DataMigration.framework/DataMigration
0x18350c000 - 0x183825fff AudioToolbox arm64  <3acc644e69ff3aedae6e3af12f13c58c> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox
0x183828000 - 0x1839d6fff QuartzCore arm64  <cbbd0fe690bc3efbb32085b9cdbc292f> /System/Library/Frameworks/QuartzCore.framework/QuartzCore
0x1839d8000 - 0x1839defff Netrb arm64  <e3abc95050e93feb9999aad619858dd8> /System/Library/PrivateFrameworks/Netrb.framework/Netrb
0x1839e0000 - 0x1839f1fff libcmph.dylib arm64  <f9b0e4b1c2b83f848b351670183dcf24> /usr/lib/libcmph.dylib
0x1839f4000 - 0x183a11fff libmis.dylib arm64  <19a3fb5270713311900b8723341c9649> /usr/lib/libmis.dylib
0x183a14000 - 0x183a94fff LanguageModeling arm64  <25b1d85465f531118bbcd9b3afcb4151> /System/Library/PrivateFrameworks/LanguageModeling.framework/LanguageModeling
0x183a98000 - 0x183b75fff ManagedConfiguration arm64  <6829ea88182532c69d9eb79c0d5d8ab8> /System/Library/PrivateFrameworks/ManagedConfiguration.framework/ManagedConfiguration
0x183b78000 - 0x183b8ffff libmarisa.dylib arm64  <72aff9de7b7a3d0f8d24b2f2e33599b1> /usr/lib/libmarisa.dylib
0x183b90000 - 0x183c57fff ProofReader arm64  <e62d51dcf4a134a2981acc214a79ee83> /System/Library/PrivateFrameworks/ProofReader.framework/ProofReader
0x183c58000 - 0x183c5efff MediaAccessibility arm64  <dbc84b51887d3c239f748993bfe87be2> /System/Library/Frameworks/MediaAccessibility.framework/MediaAccessibility
0x183c60000 - 0x183c6ffff MobileAsset arm64  <4f36adf36909306e8cdda53f431aec5e> /System/Library/PrivateFrameworks/MobileAsset.framework/MobileAsset
0x183c70000 - 0x183cd1fff ColorSync arm64  <7a7f1de762e734a1b0185bbcf4c5805d> /System/Library/PrivateFrameworks/ColorSync.framework/ColorSync
0x183cd4000 - 0x183d1ffff MetalPerformanceShaders arm64  <7530c46bdba43048b3780b308d1e0349> /System/Library/Frameworks/MetalPerformanceShaders.framework/MetalPerformanceShaders
0x183d20000 - 0x18414cfff FaceCore arm64  <9fe0da65d44f3e58872fa11c1d79a801> /System/Library/PrivateFrameworks/FaceCore.framework/FaceCore
0x184150000 - 0x1841cbfff Quagga arm64  <872de61a4b163a57b1e5df76124b9013> /System/Library/PrivateFrameworks/Quagga.framework/Quagga
0x1841cc000 - 0x184376fff CoreImage arm64  <df4ffff30c383def8d08b5b28b6df84d> /System/Library/Frameworks/CoreImage.framework/CoreImage
0x184378000 - 0x1843aafff TextInput arm64  <475a479564123e0aafd3f578a8ad861a> /System/Library/PrivateFrameworks/TextInput.framework/TextInput
0x1843ac000 - 0x1843b9fff libAccessibility.dylib arm64  <767e55a612343e498e13731d796f2f9f> /usr/lib/libAccessibility.dylib
0x1843c8000 - 0x1849a9fff JavaScriptCore arm64  <7b9d576bd0b0397aa02c5215ff3b128b> /System/Library/Frameworks/JavaScriptCore.framework/JavaScriptCore
0x184ba0000 - 0x185b78fff WebCore arm64  <c34b05e2e0153569b040074396aa9cd4> /System/Library/PrivateFrameworks/WebCore.framework/WebCore
0x185b7c000 - 0x185ba5fff libxslt.1.dylib arm64  <6553a930d8933aa0b054d0ebd966c83a> /usr/lib/libxslt.1.dylib
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0x185c84000 - 0x185d3cfff CoreUI arm64  <1fd04759197f312ab80538caca1dd94e> /System/Library/PrivateFrameworks/CoreUI.framework/CoreUI
0x185d40000 - 0x185d65fff DictionaryServices arm64  <03b326076ce4388099fb7442bcbcbd3b> /System/Library/PrivateFrameworks/DictionaryServices.framework/DictionaryServices
0x185d68000 - 0x185d68fff HangTracer arm64  <2989b93ed68939929f8898e8d586bdc2> /System/Library/PrivateFrameworks/HangTracer.framework/HangTracer
0x185d6c000 - 0x185dbafff PhysicsKit arm64  <d5863be3b3d3375997ce983229cfa34a> /System/Library/PrivateFrameworks/PhysicsKit.framework/PhysicsKit
0x185dbc000 - 0x185e92fff UIFoundation arm64  <a012ee13e0bf395794c95ce1b5670728> /System/Library/PrivateFrameworks/UIFoundation.framework/UIFoundation
0x185e94000 - 0x186abefff UIKit arm64  <bc9398e03d593b3fb4b66794602f9602> /System/Library/Frameworks/UIKit.framework/UIKit
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0x1880bc000 - 0x1880e4fff ContactsFoundation arm64  <5b56325e99d43df0875893f3629cf775> /System/Library/PrivateFrameworks/ContactsFoundation.framework/ContactsFoundation
0x1880e8000 - 0x1880ecfff ParsecSubscriptionServiceSupport arm64  <c840948751e43512a04638cf49270da6> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
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0x1881b8000 - 0x1881d7fff vCard arm64  <8139df6f04d830f39ef345d53ffb6466> /System/Library/PrivateFrameworks/vCard.framework/vCard
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0x1884dc000 - 0x188502fff EAP8021X arm64  <f3f3fc3867983647b6898adb483c29db> /System/Library/PrivateFrameworks/EAP8021X.framework/EAP8021X
0x188718000 - 0x188729fff UserManagement arm64  <1d49514ccc853a8f8ad3fdec01ad4766> /System/Library/PrivateFrameworks/UserManagement.framework/UserManagement
0x18b76c000 - 0x18b773fff libnetwork.dylib arm64  <83e299ccae0f3db4b025d3c1e9348905> /usr/lib/libnetwork.dylib
0x18b788000 - 0x18b7acfff Network arm64  <3f3db62e8dfd3208b3931df22cb678cc> /System/Library/PrivateFrameworks/Network.framework/Network
0x18eb20000 - 0x18ec49fff NetworkExtension arm64  <72ea23ba49e239d995c3923d88c6cf20> /System/Library/Frameworks/NetworkExtension.framework/NetworkExtension
0x18fbbc000 - 0x18fc15fff CoreBrightness arm64  <d3db17f73b17334193450eb8569238f6> /System/Library/PrivateFrameworks/CoreBrightness.framework/CoreBrightness
0x190a84000 - 0x190ad5fff libstdc++.6.dylib arm64  <b79500b0dd97321c851ed4a470121dc0> /usr/lib/libstdc++.6.dylib
0x193dac000 - 0x193de9fff WatchConnectivity arm64  <473da9211a8039c8a5431250836844a5> /System/Library/Frameworks/WatchConnectivity.framework/WatchConnectivity
0x198aac000 - 0x198ab0fff sdk.dylib arm64  <2a09f52d94d53f12a831e7c9148f901d> /System/Library/Caches/com.apple.xpc/sdk.dylib

[simpzan]

it seems canceling the session when error occurs can solve the issue.

                sSelf.session.cancel()

[zhuhaow]

This is happening with UDP socket? Seems like a bug of network extension. I generally suggest to disconnect all sockets when network changes.

---

Zhuhao Wang
Zhejiang university

2016年10月14日 +0800 23:23 Samuel notifications@github.com，写道：

it seems cancel the session can solve the issue.

sSelf.session.cancel()

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[simpzan]

Yes, NWUDPSession.setReadHandler.
Disconnect all sockets is a good idea. Thanks!