6 Replies
      Latest reply: Nov 6, 2016 9:04 PM by sai_kapil RSS
      sai_kapil Level 1 Level 1 (0 points)

        I am trying to establish a customized IPv6 VPN tunnel to my server. I am setting the NEIPv6Settings properly with the values I received. But I get  a crash(EXC_BAD_ACCESS) log as shown below.

        <Error>: nw_interface_create_with_name netutil_ifname_to_ifindex(utun0) failed, dumping backtrace:

                  [armv7f] libnetcore-583.50.1

              0   libsystem_network.dylib             0x2258b94b __nw_create_backtrace_string + 130

              1   libsystem_network.dylib             0x225a5b41 nw_interface_create_with_name + 132

              2   Network                             0x2bf30299 <redacted> + 88

              3   SymptomEvaluator                    0x349cb891 config_callback + 824

              4   SystemConfiguration                 0x22c84ee5 <redacted> + 172

              5   SystemConfiguration                 0x22c851fb <redacted> + 42

              6   libdispatch.dylib                   0x22411823 <redacted> + 10

              7   libdispatch.dylib                   0x2241e423 <redacted> + 1758

              8   libdispatch.dylib                   0x2241da61 <redacted> + 284

              9   libdispatch.dylib                   0x2242015d <redacted> + 396

              10  libdispatch.dylib                   0x2241ffcd <redacted> + 96

              11  libsystem_pthread.dylib             0x225d5b29 _pthread_wqthread + 1024

              12  libsystem_pthread.dylib             0x225d5718 start_wqthread + 8

         

        My code works fine in IPv4 networks, It crashes only on IPv6 only Network. Any help is highly appreciated.

        • Re: ipv6+vpn+ios
          eskimo Apple Staff Apple Staff (6,665 points)

          But I get a crash (EXC_BAD_ACCESS) log as shown below.

          Please post the full crash log.

          Share and Enjoy

          Quinn “The Eskimo!”
          Apple Developer Relations, Developer Technical Support, Core OS/Hardware
          let myEmail = "eskimo" + "1" + "@apple.com"

            • Re: ipv6+vpn+ios
              sai_kapil Level 1 Level 1 (0 points)

              Hi Eskimo,

               

              Thanks for replying.

              Following the complete stack trace i get in my device log.

               

              Oct 25 11:04:05 iPad symptomsd[114] <Error>: nw_interface_create_with_name netutil_ifname_to_ifindex(utun0) failed, dumping backtrace:

                       [armv7f] libnetcore-583.50.1

                   0   libsystem_network.dylib             0x2258b94b __nw_create_backtrace_string + 130

                   1   libsystem_network.dylib             0x225a5b41 nw_interface_create_with_name + 132

                   2   Network                             0x2bf30299 <redacted> + 88

                   3   SymptomEvaluator                    0x349cb891 config_callback + 824

                   4   SystemConfiguration                 0x22c84ee5 <redacted> + 172

                   5   SystemConfiguration                 0x22c851fb <redacted> + 42

                   6   libdispatch.dylib                   0x22411823 <redacted> + 10

                   7   libdispatch.dylib                   0x2241e423 <redacted> + 1758

                   8   libdispatch.dylib                   0x2241da61 <redacted> + 284

                   9   libdispatch.dylib                   0x2242015d <redacted> + 396

                   10  libdispatch.dylib                   0x2241ffcd <redacted> + 96

                   11  libsystem_pthread.dylib             0x225d5b29 _pthread_wqthread + 1024

                   12  libsystem_pthread.dylib             0x225d5718 start_wqthread + 8

              Oct 25 11:04:06 iPad symptomsd[114] <Error>: -[NWInterface initWithInterfaceName:] nw_interface_create_with_name(utun0) failed, dumping backtrace:

                       [armv7f] libnetcore-583.50.1

                   0   libsystem_network.dylib             0x2258b94b __nw_create_backtrace_string + 130

                   1   Network                             0x2bf302ed <redacted> + 172

                   2   SymptomEvaluator                    0x349cb891 config_callback + 824

                   3   SystemConfiguration                 0x22c84ee5 <redacted> + 172

                   4   SystemConfiguration                 0x22c851fb <redacted> + 42

                   5   libdispatch.dylib                   0x22411823 <redacted> + 10

                   6   libdispatch.dylib                   0x2241e423 <redacted> + 1758

                   7   libdispatch.dylib                   0x2241da61 <redacted> + 284

                   8   libdispatch.dylib                   0x2242015d <redacted> + 396

                   9   libdispatch.dylib                   0x2241ffcd <redacted> + 96

                   10  libsystem_pthread.dylib             0x225d5b29 _pthread_wqthread + 1024

                   11  libsystem_pthread.dylib             0x225d5718 start_wqthread + 8

              Oct 25 11:04:06 iPad symptomsd[114] <Error>: nw_interface_create_with_name netutil_ifname_to_ifindex(utun0) failed, dumping backtrace:

                       [armv7f] libnetcore-583.50.1

                   0   libsystem_network.dylib             0x2258b94b __nw_create_backtrace_string + 130

                   1   libsystem_network.dylib             0x225a5b41 nw_interface_create_with_name + 132

                   2   Network                             0x2bf30299 <redacted> + 88

                   3   SymptomEvaluator                    0x349cb891 config_callback + 824

                   4   SystemConfiguration                 0x22c84ee5 <redacted> + 172

                   5   SystemConfiguration                 0x22c851fb <redacted> + 42

                   6   libdispatch.dylib                   0x22411823 <redacted> + 10

                   7   libdispatch.dylib                   0x2241e423 <redacted> + 1758

                   8   libdispatch.dylib                   0x2241da61 <redacted> + 284

                   9   libdispatch.dylib                   0x2242015d <redacted> + 396

                   10  libdispatch.dylib                   0x2241ffcd <redacted> + 96

                   11  libsystem_pthread.dylib             0x225d5b29 _pthread_wqthread + 1024

                   12  libsystem_pthread.dylib             0x225d5718 start_wqthread + 8

              Oct 25 11:04:06 iPad symptomsd[114] <Error>: -[NWInterface initWithInterfaceName:] nw_interface_create_with_name(utun0) failed, dumping backtrace:

                       [armv7f] libnetcore-583.50.1

                   0   libsystem_network.dylib             0x2258b94b __nw_create_backtrace_string + 130

                   1   Network                             0x2bf302ed <redacted> + 172

                   2   SymptomEvaluator                    0x349cb891 config_callback + 824

                   3   SystemConfiguration                 0x22c84ee5 <redacted> + 172

                   4   SystemConfiguration                 0x22c851fb <redacted> + 42

                   5   libdispatch.dylib                   0x22411823 <redacted> + 10

                   6   libdispatch.dylib                   0x2241e423 <redacted> + 1758

                   7   libdispatch.dylib                   0x2241da61 <redacted> + 284

                   8   libdispatch.dylib                   0x2242015d <redacted> + 396

                   9   libdispatch.dylib                   0x2241ffcd <redacted> + 96

                   10  libsystem_pthread.dylib             0x225d5b29 _pthread_wqthread + 1024

                   11  libsystem_pthread.dylib             0x225d5718 start_wqthread + 8

               

              In Xcode I get a crash in : libobjc.A.dylib`objc_release followed by libobjc.A.dylib`(anonymous namespace)::AutoreleasePoolPage::pop:.

              I am a beginner for iOS please forgive me if the details i have provided is incorrect.



              Thanks,

              Sai

                • Re: ipv6+vpn+ios
                  eskimo Apple Staff Apple Staff (6,665 points)

                  Following the complete stack trace i get in my device log.

                  Alas, that’s not sufficient.  I’m looking for the crash report, as per Technote 2151 Understanding and Analyzing iOS Application Crash Reports.  To get this you’ll need to run your app / appex outside of Xcode, otherwise Xcode catches the crash which suppressing the crash reporting mechanism.

                  Share and Enjoy

                  Quinn “The Eskimo!”
                  Apple Developer Relations, Developer Technical Support, Core OS/Hardware
                  let myEmail = "eskimo" + "1" + "@apple.com"

                    • Re: ipv6+vpn+ios
                      sai_kapil Level 1 Level 1 (0 points)

                      Hi Eskimo,

                       

                      Please find the below crash report that I obtained by runnign the application out of Xcode.

                       

                      Incident Identifier: 1D4C0BC7-46E2-4DFC-91E6-FDE31D2AE975

                      CrashReporter Key:   2720952d86433560de23cc2a5f9b3aca353505dd

                      Hardware Model:      iPad2,6

                      Process:             PacketTunnelProvider [19587]

                      Path:                /private/var/containers/Bundle/Application/076481FD-F741-4817-B677-AE276487ED84/Netsnapper.app/PlugIns/PacketTunnelProvider.appex/PacketTunnelProvider

                      Identifier:          com.netsnapper.connect.Netsnapper-Connect.PacketTunnelProvider

                      Version:             0 (6.0.0)

                      Code Type:           ARM (Native)

                      Parent Process:      launchd [1]

                       

                       

                      Date/Time:           2016-10-26 12:52:53.53 +0530

                      Launch Time:         2016-10-26 12:52:49.49 +0530

                      OS Version:          iOS 9.3.2 (13F69)

                      Report Version:      104

                       

                       

                      Exception Type:  EXC_BAD_ACCESS (SIGSEGV)

                      Exception Subtype: KERN_INVALID_ADDRESS at 0x00001a1f

                      Triggered by Thread:  4

                       

                       

                      Filtered syslog:

                      None found

                       

                       

                      Thread 0 name:  Dispatch queue: com.apple.main-thread

                      Thread 0:

                      0   libsystem_kernel.dylib         0x2251a8d0 mach_msg_trap + 20

                      1   libsystem_kernel.dylib         0x2251a6d4 mach_msg + 40

                      2   CoreFoundation                 0x22865ac4 __CFRunLoopServiceMachPort + 136

                      3   CoreFoundation                 0x22863e4c __CFRunLoopRun + 1036

                      4   CoreFoundation                 0x227b3228 CFRunLoopRunSpecific + 520

                      5   CoreFoundation                 0x227b3014 CFRunLoopRunInMode + 108

                      6   Foundation                     0x22ffc044 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 268

                      7   Foundation                     0x2304aa4c -[NSRunLoop(NSRunLoop) run] + 80

                      8   libxpc.dylib                   0x225fd020 _xpc_objc_main + 608

                      9   libxpc.dylib                   0x225fe734 xpc_main + 168

                      10  Foundation                     0x231a4794 service_connection_handler + 0

                      11  PlugInKit                     0x28d2912c -[PKService run] + 508

                      12  PlugInKit                     0x28d28dfa +[PKService main] + 58

                      13  PlugInKit                     0x28d29160 +[PKService _defaultRun:arguments:] + 20

                      14  libextension.dylib             0x22fe37cc NSExtensionMain + 48

                      15  libdyld.dylib                 0x2245b872 start + 2

                       

                       

                      Thread 1:

                      0   libsystem_kernel.dylib         0x2252f864 __workq_kernreturn + 8

                      1   libsystem_pthread.dylib       0x225d5b34 _pthread_wqthread + 1036

                      2   libsystem_pthread.dylib       0x225d5718 start_wqthread + 8

                       

                       

                      Thread 2 name:  Dispatch queue: com.apple.libdispatch-manager

                      Thread 2:

                      0   libsystem_kernel.dylib         0x225302f8 kevent_qos + 24

                      1   libdispatch.dylib             0x22425d60 _dispatch_mgr_invoke + 256

                      2   libdispatch.dylib             0x22425abe _dispatch_mgr_thread$VARIANT$mp + 38

                       

                       

                      Thread 3:

                      0   libsystem_kernel.dylib         0x2252f864 __workq_kernreturn + 8

                      1   libsystem_pthread.dylib       0x225d5b34 _pthread_wqthread + 1036

                      2   libsystem_pthread.dylib       0x225d5718 start_wqthread + 8

                       

                       

                      Thread 4 name:  Dispatch queue: com.apple.root.background-qos

                      Thread 4 Crashed:

                      0   libobjc.A.dylib               0x220586c8 objc_release + 8

                      1   libobjc.A.dylib               0x220593a8 (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 388

                      2   libdispatch.dylib             0x22420738 _dispatch_root_queue_drain + 1896

                      3   libdispatch.dylib             0x2241ffcc _dispatch_worker_thread3 + 96

                      4   libsystem_pthread.dylib       0x225d5b28 _pthread_wqthread + 1024

                      5   libsystem_pthread.dylib       0x225d5718 start_wqthread + 8

                       

                       

                      Thread 5:

                      0   libsystem_kernel.dylib         0x2252f864 __workq_kernreturn + 8

                      1   libsystem_pthread.dylib       0x225d5b34 _pthread_wqthread + 1036

                      2   libsystem_pthread.dylib       0x225d5718 start_wqthread + 8

                       

                       

                      Thread 6:

                      0   libsystem_kernel.dylib         0x2252f864 __workq_kernreturn + 8

                      1   libsystem_pthread.dylib       0x225d5b34 _pthread_wqthread + 1036

                      2   libsystem_pthread.dylib       0x225d5718 start_wqthread + 8

                       

                       

                      Thread 7:

                      0   libsystem_kernel.dylib         0x2252eda0 __recvfrom + 20

                      1   libsystem_c.dylib             0x2247f0aa recv + 22

                      2   PacketTunnelProvider           0x00094526 0x78000 + 116006

                      3   PacketTunnelProvider           0x000b62aa 0x78000 + 254634

                      4   PacketTunnelProvider           0x000b6190 0x78000 + 254352

                      5   libsystem_pthread.dylib       0x225d785a _pthread_body + 138

                      6   libsystem_pthread.dylib       0x225d77ce _pthread_start + 110

                      7   libsystem_pthread.dylib       0x225d5724 thread_start + 8

                       

                       

                      Thread 8:

                      0   libsystem_kernel.dylib         0x2252e998 __psynch_cvwait + 24

                      1   libsystem_pthread.dylib       0x225d6dec _pthread_cond_wait + 536

                      2   libsystem_pthread.dylib       0x225d7c98 pthread_cond_wait + 40

                      3   libc++.1.dylib                 0x21fd486c std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 36

                      4   PacketTunnelProvider           0x000b6dbc 0x78000 + 257468

                      5   PacketTunnelProvider           0x000b61a6 0x78000 + 254374

                      6   libsystem_pthread.dylib       0x225d785a _pthread_body + 138

                      7   libsystem_pthread.dylib       0x225d77ce _pthread_start + 110

                      8   libsystem_pthread.dylib       0x225d5724 thread_start + 8

                       

                       

                      Thread 9:

                      0   libsystem_kernel.dylib         0x2252effc __semwait_signal + 24

                      1   libsystem_c.dylib             0x22482eec nanosleep + 172

                      2   libsystem_c.dylib             0x224d2184 sleep + 28

                      3   PacketTunnelProvider           0x000b74c6 0x78000 + 259270

                      4   PacketTunnelProvider           0x000b61bc 0x78000 + 254396

                      5   libsystem_pthread.dylib       0x225d785a _pthread_body + 138

                      6   libsystem_pthread.dylib       0x225d77ce _pthread_start + 110

                      7   libsystem_pthread.dylib       0x225d5724 thread_start + 8

                       

                       

                      Thread 4 crashed with ARM Thread State (32-bit):

                          r0: 0x15e32f40    r1: 0x00001a0f      r2: 0x003a00a8      r3: 0x00000fff

                          r4: 0x003a0000    r5: 0x1f1970b0      r6: 0x003a0000      r7: 0x1f196f60

                          r8: 0x003a0028    r9: 0x00000010     r10: 0xa3a3a3a3     r11: 0x28408c56

                          ip: 0x399e3178    sp: 0x1f196d40      lr: 0x220593a9      pc: 0x220586c8

                        cpsr: 0x20000030

                       

                       

                      Binary Images:

                      0x78000 - 0x167fff PacketTunnelProvider armv7  <8b7b828eed8a36f2986bae6e040b4167> /var/containers/Bundle/Application/076481FD-F741-4817-B677-AE276487ED84/Netsnapper.app/PlugIns/PacketTunnelProvider.appex/PacketTunnelProvider

                      0x1fe1f000 - 0x1fe46fff dyld armv7  <0c2ea6a0b205323f9e667de2c5d850a4> /usr/lib/dyld

                      0x21fcc000 - 0x21fcdfff libSystem.B.dylib armv7  <8e9e985154953129ab3632eb2c6ba247> /usr/lib/libSystem.B.dylib

                      0x21fce000 - 0x22019fff libc++.1.dylib armv7  <017dba6c16b63f9ebecb9ddd0d0a4520> /usr/lib/libc++.1.dylib

                      0x2201a000 - 0x22034fff libc++abi.dylib armv7  <d32373f6c2153a509f6603750d213ffb> /usr/lib/libc++abi.dylib

                      0x22038000 - 0x223a2fff libobjc.A.dylib armv7  <94f6d325c1843f45b3a439b86fc9de15> /usr/lib/libobjc.A.dylib

                      0x223a3000 - 0x223a7fff libcache.dylib armv7  <8009f99fb892331dbcb61cd740ff0f43> /usr/lib/system/libcache.dylib

                      0x223a8000 - 0x223b1fff libcommonCrypto.dylib armv7  <f6db318471d732d39918ef36bde65cb7> /usr/lib/system/libcommonCrypto.dylib

                      0x223b2000 - 0x223b7fff libcompiler_rt.dylib armv7  <cfa3ca12d6c2383abcaf3c8541e9b86c> /usr/lib/system/libcompiler_rt.dylib

                      0x223b8000 - 0x223befff libcopyfile.dylib armv7  <d2b06020c3693c7b9d179434f8115ba0> /usr/lib/system/libcopyfile.dylib

                      0x223bf000 - 0x2240efff libcorecrypto.dylib armv7  <181437f8d9e53277ace439de8b3fd1ad> /usr/lib/system/libcorecrypto.dylib

                      0x2240f000 - 0x22458fff libdispatch.dylib armv7  <bbb4bba2176039ab95a59d7a56f6eff8> /usr/lib/system/libdispatch.dylib

                      0x22459000 - 0x2245bfff libdyld.dylib armv7  <0cc5752d347b3a2da6887f5ab543e74f> /usr/lib/system/libdyld.dylib

                      0x2245c000 - 0x2245cfff libkeymgr.dylib armv7  <d3fa0081ea9a3dfab033af5d873bdeec> /usr/lib/system/libkeymgr.dylib

                      0x2245d000 - 0x2245dfff liblaunch.dylib armv7  <151c3b447b733ee38649691a33b4b730> /usr/lib/system/liblaunch.dylib

                      0x2245e000 - 0x22461fff libmacho.dylib armv7  <9bf39a94c56133d093fdc05c41caa7c9> /usr/lib/system/libmacho.dylib

                      0x22462000 - 0x22463fff libremovefile.dylib armv7  <dd6a29fc35a83b489dea63bda0370f04> /usr/lib/system/libremovefile.dylib

                      0x22464000 - 0x22476fff libsystem_asl.dylib armv7  <c80449f997c8387ab227e8f94570a00e> /usr/lib/system/libsystem_asl.dylib

                      0x22477000 - 0x22477fff libsystem_blocks.dylib armv7  <b4b8d5044367323a9b129f3a7d81b4e9> /usr/lib/system/libsystem_blocks.dylib

                      0x22478000 - 0x224dcfff libsystem_c.dylib armv7  <0d9436429e273c919dcf6eeb8fef30cf> /usr/lib/system/libsystem_c.dylib

                      0x224dd000 - 0x224dffff libsystem_configuration.dylib armv7  <c22080856fb836de8c8f1a9b06c13c2d> /usr/lib/system/libsystem_configuration.dylib

                      0x224e0000 - 0x224e3fff libsystem_containermanager.dylib armv7  <39f4c7de19e437b281d4a9ff474977bd> /usr/lib/system/libsystem_containermanager.dylib

                      0x224e4000 - 0x224e5fff libsystem_coreservices.dylib armv7  <e23e6fd831bd392cb899b5e82eeef766> /usr/lib/system/libsystem_coreservices.dylib

                      0x224e6000 - 0x224f7fff libsystem_coretls.dylib armv7  <ae770f4c3c6136919474e28ca31445f9> /usr/lib/system/libsystem_coretls.dylib

                      0x224f8000 - 0x224fefff libsystem_dnssd.dylib armv7  <562dac3175c33fa9affe4016e75a8a0d> /usr/lib/system/libsystem_dnssd.dylib

                      0x224ff000 - 0x22519fff libsystem_info.dylib armv7  <42e218d09d7b3189a58b69c0b6802046> /usr/lib/system/libsystem_info.dylib

                      0x2251a000 - 0x22534fff libsystem_kernel.dylib armv7  <8659d4406ffd39fd990d780558d03621> /usr/lib/system/libsystem_kernel.dylib

                      0x22535000 - 0x22555fff libsystem_m.dylib armv7  <f9874db40ec430ffb1304d9280c95b62> /usr/lib/system/libsystem_m.dylib

                      0x22556000 - 0x22568fff libsystem_malloc.dylib armv7  <22bc0ce502743a24ad89ba9f9bd23210> /usr/lib/system/libsystem_malloc.dylib

                      0x22569000 - 0x225bcfff libsystem_network.dylib armv7  <e71dd2fc95a3314ba3449784128e0efb> /usr/lib/system/libsystem_network.dylib

                      0x225bd000 - 0x225c4fff libsystem_networkextension.dylib armv7  <a9380408624232edb7c6624b331182d5> /usr/lib/system/libsystem_networkextension.dylib

                      0x225c5000 - 0x225ccfff libsystem_notify.dylib armv7  <522c4cecd3333a6f8f8cfe55218c7c51> /usr/lib/system/libsystem_notify.dylib

                      0x225cd000 - 0x225d3fff libsystem_platform.dylib armv7  <79c6252e94f4306d8c997bac49e1ded8> /usr/lib/system/libsystem_platform.dylib

                      0x225d4000 - 0x225dbfff libsystem_pthread.dylib armv7  <808193b5ff6f3c3db6785d6e8eb880de> /usr/lib/system/libsystem_pthread.dylib

                      0x225dc000 - 0x225defff libsystem_sandbox.dylib armv7  <753249ea9ed1369ea26edef897e61cf2> /usr/lib/system/libsystem_sandbox.dylib

                      0x225df000 - 0x225edfff libsystem_trace.dylib armv7  <fcfc8d6bf8e1357784a78a591c88d819> /usr/lib/system/libsystem_trace.dylib

                      0x225ee000 - 0x225eefff libunwind.dylib armv7  <a394593b9bbe3106873aceb3682cd4bd> /usr/lib/system/libunwind.dylib

                      0x225ef000 - 0x225effff libvminterpose.dylib armv7  <98f781d5886e342e940139a995aaa97f> /usr/lib/system/libvminterpose.dylib

                      0x225f0000 - 0x2260efff libxpc.dylib armv7  <469babf82510319c9cc43900825dc458> /usr/lib/system/libxpc.dylib

                      0x2260f000 - 0x2279cfff libicucore.A.dylib armv7  <29ab162661523c978237f724d3a83a2f> /usr/lib/libicucore.A.dylib

                      0x2279d000 - 0x227a9fff libz.1.dylib armv7  <f45b8e232d25324db59b2de0c905946a> /usr/lib/libz.1.dylib

                      0x227aa000 - 0x22ae1fff CoreFoundation armv7  <88235170cbe235f280ab8c3b20bdd1ce> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation

                      0x22ae2000 - 0x22aeefff libbsm.0.dylib armv7  <524609a8ee323a04a0fb962be8d816dd> /usr/lib/libbsm.0.dylib

                      0x22aef000 - 0x22aeffff libenergytrace.dylib armv7  <d707d76751ad3e5280348c52def59620> /usr/lib/libenergytrace.dylib

                      0x22af0000 - 0x22b4bfff IOKit armv7  <10578ab3470f3966b49fc927be19f109> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit

                      0x22b4c000 - 0x22b68fff libMobileGestalt.dylib armv7  <f6a9faa11c763de294dcd350fd3e1b53> /usr/lib/libMobileGestalt.dylib

                      0x22b69000 - 0x22c1ffff libxml2.2.dylib armv7  <a9df5b0a511c3013b9bd6ae1324346e5> /usr/lib/libxml2.2.dylib

                      0x22c20000 - 0x22c7bfff Security armv7  <b379225bf7553be8823f30c409e12430> /System/Library/Frameworks/Security.framework/Security

                      0x22c7c000 - 0x22cc4fff SystemConfiguration armv7  <c4645be8e1f23820a0c50d8aa0036fc8> /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration

                      0x22cc5000 - 0x22d7cfff libsqlite3.dylib armv7  <191466f10f943213acae502ee3d48382> /usr/lib/libsqlite3.dylib

                      0x22d7d000 - 0x22f75fff CFNetwork armv7  <211c7f059e313b5db488ebe48f755a8d> /System/Library/Frameworks/CFNetwork.framework/CFNetwork

                      0x22f76000 - 0x22f80fff libbz2.1.0.dylib armv7  <7439fad6b6a836429fa11d711213728b> /usr/lib/libbz2.1.0.dylib

                      0x22f81000 - 0x22f96fff liblzma.5.dylib armv7  <8ee3facc25bd3957b49ff0b4d657e0ef> /usr/lib/liblzma.5.dylib

                      0x22f97000 - 0x22facfff libCRFSuite.dylib armv7  <2ca4911a330736688ebd585895af032a> /usr/lib/libCRFSuite.dylib

                      0x22fad000 - 0x22fcffff libarchive.2.dylib armv7  <e90ef3b8b0b5302b9cbed3d0840a9e0b> /usr/lib/libarchive.2.dylib

                      0x22fd0000 - 0x22febfff libextension.dylib armv7  <f3466097cca237faba733b484c0eb6b0> /usr/lib/libextension.dylib

                      0x22fec000 - 0x22ff0fff liblangid.dylib armv7  <8072b6f6bab438de87ec0e930704c5dc> /usr/lib/liblangid.dylib

                      0x22ff1000 - 0x23228fff Foundation armv7  <309b5a1b9bf833fa95d2d209909e783e> /System/Library/Frameworks/Foundation.framework/Foundation

                      0x23229000 - 0x23307fff libBLAS.dylib armv7  <3b647903060439dd81b6d852b828c808> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libBLAS.dylib

                      0x23308000 - 0x235d1fff libLAPACK.dylib armv7  <76d8234bfe563de18b6a3f8c9727ef6b> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libLAPACK.dylib

                      0x235d2000 - 0x2382afff vImage armv7  <b0481939c3043e19b603874339d52b73> /System/Library/Frameworks/Accelerate.framework/Frameworks/vImage.framework/vImage

                      0x2382b000 - 0x2383cfff libvMisc.dylib armv7  <324e705b1dac3a809b793215d7575e88> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvMisc.dylib

                      0x2383d000 - 0x2384efff libLinearAlgebra.dylib armv7  <dd988766e0b237f88de69b7df319f973> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libLinearAlgebra.dylib

                      0x2384f000 - 0x23863fff libSparseBLAS.dylib armv7  <828a031fc42635aa95ce451bb693f210> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libSparseBLAS.dylib

                      0x23864000 - 0x238d9fff libvDSP.dylib armv7  <81660ad7288639ab82dfd36518c90cb4> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvDSP.dylib

                      0x238da000 - 0x238dafff vecLib armv7  <ce714ab612c534a1b1cbd498bd851006> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/vecLib

                      0x238db000 - 0x238dbfff Accelerate armv7  <f2de5d457ef1361c84503912a662de48> /System/Library/Frameworks/Accelerate.framework/Accelerate

                      0x238dc000 - 0x23d99fff CoreGraphics armv7  <a9a41ae905153fd9ac69e01ff3ba91ba> /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics

                      0x23d9a000 - 0x23dabfff GraphicsServices armv7  <f0bb6156889c3f43985f7a92f37bec98> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices

                      0x23dac000 - 0x23debfff AppSupport armv7  <8478366c21583944bd7275dd878eb20c> /System/Library/PrivateFrameworks/AppSupport.framework/AppSupport

                      0x23dec000 - 0x23ea7fff MobileCoreServices armv7  <ec630bf558c637559ab2e5b535292919> /System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices

                      0x23ea8000 - 0x23ef1fff BaseBoard armv7  <00f328aa722931a3b06c5a0843732f16> /System/Library/PrivateFrameworks/BaseBoard.framework/BaseBoard

                      0x23ef2000 - 0x23efbfff AssertionServices armv7  <f5bdb0c4ff12316e9d9527c9e3010d74> /System/Library/PrivateFrameworks/AssertionServices.framework/AssertionServices

                      0x23efc000 - 0x23f1dfff BackBoardServices armv7  <7de2f79285fb3acdadffa9e18c96c673> /System/Library/PrivateFrameworks/BackBoardServices.framework/BackBoardServices

                      0x23f1e000 - 0x23f21fff MobileSystemServices armv7  <fe657fcb14f03b16ab36909ceb509565> /System/Library/PrivateFrameworks/MobileSystemServices.framework/MobileSystemServices

                      0x23f22000 - 0x23f53fff FrontBoardServices armv7  <d976ddcbd723319ba884037470a616e6> /System/Library/PrivateFrameworks/FrontBoardServices.framework/FrontBoardServices

                      0x23f54000 - 0x23f5dfff UserNotificationServices armv7  <d72021767b2a3095a2778db8be1055e4> /System/Library/PrivateFrameworks/UserNotificationServices.framework/UserNotificationServices

                      0x23f5e000 - 0x23f84fff SpringBoardServices armv7  <6450d7693bdc3524bd750362e0bb1a08> /System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices

                      0x23f85000 - 0x23f93fff MobileKeyBag armv7  <8aaa865511f93d38a0a32422ca4f8bd9> /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag

                      0x23f94000 - 0x23f99fff IOSurface armv7  <be0c566be52130009d2738cf9cf9b7d4> /System/Library/PrivateFrameworks/IOSurface.framework/IOSurface

                      0x23f9a000 - 0x23fa5fff liblockdown.dylib armv7  <ee1f8bed602a362daea870f0473e1b7b> /usr/lib/liblockdown.dylib

                      0x23fa6000 - 0x23fb6fff CrashReporterSupport armv7  <d332f2a2fdbe309a88bc41f6c7d57972> /System/Library/PrivateFrameworks/CrashReporterSupport.framework/CrashReporterSupport

                      0x23fb7000 - 0x23fb9fff IOSurfaceAccelerator armv7  <86b33e2d75df3e319084298687d043ab> /System/Library/PrivateFrameworks/IOSurfaceAccelerator.framework/IOSurfaceAccelerator

                      0x23fba000 - 0x23ff2fff AppleJPEG armv7  <0f5c750a41d134dfa233e17a6cbeace4> /System/Library/PrivateFrameworks/AppleJPEG.framework/AppleJPEG

                      0x23ff3000 - 0x242bffff ImageIO armv7  <2ce577822ec53e3b95ddb160b3cd022c> /System/Library/Frameworks/ImageIO.framework/ImageIO

                      0x242c0000 - 0x242c4fff TCC armv7  <ddb01002bf9137b8b231da07b42b2bbd> /System/Library/PrivateFrameworks/TCC.framework/TCC

                      0x242c5000 - 0x242c9fff AggregateDictionary armv7  <4b79b155c9853dc2b81c41700f9743fc> /System/Library/PrivateFrameworks/AggregateDictionary.framework/AggregateDictionary

                      0x242ca000 - 0x242d5fff PowerLog armv7  <fe75364bc9dd3948a1b09db11656513f> /System/Library/PrivateFrameworks/PowerLog.framework/PowerLog

                      0x242d6000 - 0x2432dfff libTelephonyUtilDynamic.dylib armv7  <798c0fa46206306dbe1d28ede5acae3c> /usr/lib/libTelephonyUtilDynamic.dylib

                      0x2432e000 - 0x2433ffff CommonUtilities armv7  <645fdd8b19cd3cb598ba9d7b205e87fb> /System/Library/PrivateFrameworks/CommonUtilities.framework/CommonUtilities

                      0x24340000 - 0x24352fff libcompression.dylib armv7  <f47b77be074a367082e6621df7874adf> /usr/lib/libcompression.dylib

                      0x24353000 - 0x2458bfff CoreData armv7  <8b0f949bbe703636b4c51a75c3920025> /System/Library/Frameworks/CoreData.framework/CoreData

                      0x2458c000 - 0x2458ffff libCoreVMClient.dylib armv7  <2b45452691c232ecb0517a978667e2d7> /System/Library/Frameworks/OpenGLES.framework/libCoreVMClient.dylib

                      0x24590000 - 0x24594fff IOAccelerator armv7  <e67385f6bf173acdbd803164ebfd7c50> /System/Library/PrivateFrameworks/IOAccelerator.framework/IOAccelerator

                      0x24595000 - 0x24595fff libCVMSPluginSupport.dylib armv7  <d4811e0f17db347f975f58e95b64a5d1> /System/Library/Frameworks/OpenGLES.framework/libCVMSPluginSupport.dylib

                      0x24596000 - 0x24598fff libCoreFSCache.dylib armv7  <f1fd4e0ce0d33dc9bccd9a11a878e71d> /System/Library/Frameworks/OpenGLES.framework/libCoreFSCache.dylib

                      0x24599000 - 0x245d6fff libGLImage.dylib armv7  <95a4c5f889d83813b79250ea4ae63b81> /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib

                      0x245d7000 - 0x245dffff libGFXShared.dylib armv7  <67e8a19ced973d56869643d0b33ef3c9> /System/Library/Frameworks/OpenGLES.framework/libGFXShared.dylib

                      0x245e0000 - 0x245e6fff IOMobileFramebuffer armv7  <3da3eeba41a83113af99e823f8b29556> /System/Library/PrivateFrameworks/IOMobileFramebuffer.framework/IOMobileFramebuffer

                      0x245e7000 - 0x245e7fff libmetal_timestamp.dylib armv7  <c9ac3b99aba734679d9708fc2fe92f17> /System/Library/PrivateFrameworks/GPUCompiler.framework/libmetal_timestamp.dylib

                      0x245e8000 - 0x24627fff Metal armv7  <b4ca99dd28ef30e88d8888c703803f3a> /System/Library/Frameworks/Metal.framework/Metal

                      0x24628000 - 0x24630fff OpenGLES armv7  <7ce3ef00504a3af8ad9935aaa4ce9221> /System/Library/Frameworks/OpenGLES.framework/OpenGLES

                      0x24631000 - 0x2464afff CoreVideo armv7  <5d715978310c3de5b1c16afe1250b2b0> /System/Library/Frameworks/CoreVideo.framework/CoreVideo

                      0x2464b000 - 0x2464dfff OAuth armv7  <6aab365d245d3035b59da1ea5428f249> /System/Library/PrivateFrameworks/OAuth.framework/OAuth

                      0x2464e000 - 0x2467efff Accounts armv7  <c83b4c146af232599e963363970bd248> /System/Library/Frameworks/Accounts.framework/Accounts

                      0x2467f000 - 0x2476cfff libiconv.2.dylib armv7  <128e8025b7ac3ce39bac331c8ff7ba71> /usr/lib/libiconv.2.dylib

                      0x2476d000 - 0x2481efff CoreAudio armv7  <2806e7f7057e3347b8ef67e2145d4cf4> /System/Library/Frameworks/CoreAudio.framework/CoreAudio

                      0x2481f000 - 0x24822fff UserFS armv7  <dacd455b700d3af484d818fb28be3699> /System/Library/PrivateFrameworks/UserFS.framework/UserFS

                      0x24823000 - 0x248e7fff CoreMedia armv7  <7a13145bcfc23465a366e09958552de1> /System/Library/Frameworks/CoreMedia.framework/CoreMedia

                      0x248e8000 - 0x248effff libcupolicy.dylib armv7  <3133e9403f4a34868eea9feb25dea46b> /usr/lib/libcupolicy.dylib

                      0x248f0000 - 0x24950fff CoreTelephony armv7  <e54779cba4d53cfbb48e548d291b9a3a> /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony

                      0x24951000 - 0x24a28fff libFontParser.dylib armv7  <75e7a9e7f5d63e229f4eb776970003f9> /System/Library/PrivateFrameworks/FontServices.framework/libFontParser.dylib

                      0x24a29000 - 0x24a98fff ************ armv7  <65b38bae7dc43e729e57739a7bd1de45> /System/Library/Frameworks/************.framework/************

                      0x24a99000 - 0x24a99fff FontServices armv7  <e038eb173eec3348bcbc333bf294754b> /System/Library/PrivateFrameworks/FontServices.framework/FontServices

                      0x24a9a000 - 0x24b89fff CoreText armv7  <9e843db6ec9f3c8eaa0896de719efd23> /System/Library/Frameworks/CoreText.framework/CoreText

                      0x24b9a000 - 0x24bc2fff PersistentConnection armv7  <c1c3f1660d8a30f9a172a78c7624e9b7> /System/Library/PrivateFrameworks/PersistentConnection.framework/PersistentConnection

                      0x24bc3000 - 0x24bc8fff DataMigration armv7  <7ea7650ec28c3286b7072491e682b4db> /System/Library/PrivateFrameworks/DataMigration.framework/DataMigration

                      0x24bc9000 - 0x24ea3fff AudioToolbox armv7  <56a8d1b1b32e3b39acf786a8c4bcbff0> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox

                      0x24ea4000 - 0x25023fff QuartzCore armv7  <d4266a613f673026b8492429245d734a> /System/Library/Frameworks/QuartzCore.framework/QuartzCore

                      0x25024000 - 0x2502dfff Netrb armv7  <2679bbf72a693acabb533d50858b891a> /System/Library/PrivateFrameworks/Netrb.framework/Netrb

                      0x2502e000 - 0x2503bfff libcmph.dylib armv7  <7543b1e5874f33948bb0734b1698cd68> /usr/lib/libcmph.dylib

                      0x2503c000 - 0x25056fff libmis.dylib armv7  <d2c76826f545362c9a26d2e730ee67ad> /usr/lib/libmis.dylib

                      0x25057000 - 0x250c5fff LanguageModeling armv7  <25a862a815f5396a99ab550ab1dfa893> /System/Library/PrivateFrameworks/LanguageModeling.framework/LanguageModeling

                      0x250c6000 - 0x2518bfff ManagedConfiguration armv7  <43a9910bcd023eada63773ae2a3352c1> /System/Library/PrivateFrameworks/ManagedConfiguration.framework/ManagedConfiguration

                      0x2518c000 - 0x251a0fff libmarisa.dylib armv7  <1c5889466c2139c09961fc9045810614> /usr/lib/libmarisa.dylib

                      0x251a1000 - 0x25240fff ProofReader armv7  <984451837b833eafa45730d01d439aab> /System/Library/PrivateFrameworks/ProofReader.framework/ProofReader

                      0x25241000 - 0x25249fff MediaAccessibility armv7  <8ea0134cb0c23f9abd52f69b577150fa> /System/Library/Frameworks/MediaAccessibility.framework/MediaAccessibility

                      0x2524a000 - 0x25257fff MobileAsset armv7  <6848bfb386343bceba3b98a4a02154b3> /System/Library/PrivateFrameworks/MobileAsset.framework/MobileAsset

                      0x25258000 - 0x252b3fff ColorSync armv7  <457e36abc1ba3d70ab862db452ec800f> /System/Library/PrivateFrameworks/ColorSync.framework/ColorSync

                      0x252b4000 - 0x252fcfff MetalPerformanceShaders armv7  <2cac46f639fe3ac193df6e7c81aee320> /System/Library/Frameworks/MetalPerformanceShaders.framework/MetalPerformanceShaders

                      0x252fd000 - 0x25721fff FaceCore armv7  <7a32afb36c8532a69104c0f368bd23d1> /System/Library/PrivateFrameworks/FaceCore.framework/FaceCore

                      0x25722000 - 0x25790fff Quagga armv7  <fe49eb1ba8c430e39877a852b85de2fa> /System/Library/PrivateFrameworks/Quagga.framework/Quagga

                      0x25791000 - 0x2591dfff CoreImage armv7  <06889f7b9778399987f465a7e5a47f5a> /System/Library/Frameworks/CoreImage.framework/CoreImage

                      0x2591e000 - 0x2594cfff TextInput armv7  <5779f38dc44436e794d9273b16052938> /System/Library/PrivateFrameworks/TextInput.framework/TextInput

                      0x2594d000 - 0x25959fff libAccessibility.dylib armv7  <5db80cceb40d326894f553fbb732b1fd> /usr/lib/libAccessibility.dylib

                      0x25962000 - 0x25d67fff JavaScriptCore armv7  <063da26ff147362bb5c72e70aa5ffe8c> /System/Library/Frameworks/JavaScriptCore.framework/JavaScriptCore

                      0x25f28000 - 0x26b3ffff WebCore armv7  <e474cc7954f134aea0fd8105945c6bb6> /System/Library/PrivateFrameworks/WebCore.framework/WebCore

                      0x26b40000 - 0x26b61fff libxslt.1.dylib armv7  <5c769ae38a033e4984aba42011524c21> /usr/lib/libxslt.1.dylib

                      0x26b62000 - 0x26c2dfff WebKitLegacy armv7  <c11ee2101bcf32deb1a88fdce377d182> /System/Library/PrivateFrameworks/WebKitLegacy.framework/WebKitLegacy

                      0x26c2e000 - 0x26cd2fff CoreUI armv7  <2f2ad16559793385ac5311aa963b1e99> /System/Library/PrivateFrameworks/CoreUI.framework/CoreUI

                      0x26cd3000 - 0x26cf2fff DictionaryServices armv7  <01ad9b82fc3a31f49b65a23624a36b8a> /System/Library/PrivateFrameworks/DictionaryServices.framework/DictionaryServices

                      0x26cf3000 - 0x26cf3fff HangTracer armv7  <dc943d80828c35429025c03ab8f1d440> /System/Library/PrivateFrameworks/HangTracer.framework/HangTracer

                      0x26cf4000 - 0x26d40fff PhysicsKit armv7  <2e88471e361435aea858a3bc5eca4be8> /System/Library/PrivateFrameworks/PhysicsKit.framework/PhysicsKit

                      0x26d41000 - 0x26e08fff UIFoundation armv7  <824195f3610c3361a2187aec5497c470> /System/Library/PrivateFrameworks/UIFoundation.framework/UIFoundation

                      0x26e09000 - 0x2799cfff UIKit armv7  <c20dd2735c9934ecb997d107e8abe187> /System/Library/Frameworks/UIKit.framework/UIKit

                      0x28d1c000 - 0x28d34fff PlugInKit armv7  <0baa719097083bab8828dafd00d7d0ec> /System/Library/PrivateFrameworks/PlugInKit.framework/PlugInKit

                      0x29106000 - 0x2910efff CaptiveNetwork armv7  <a74a26432e2f3896b0a5a4380a96c6b2> /System/Library/PrivateFrameworks/CaptiveNetwork.framework/CaptiveNetwork

                      0x2910f000 - 0x2912efff EAP8021X armv7  <c7d27777b0513b46a8cb50f6b64b35a1> /System/Library/PrivateFrameworks/EAP8021X.framework/EAP8021X

                      0x292f6000 - 0x29305fff UserManagement armv7  <f3f18a01d53b3bc994dcc7710528a67d> /System/Library/PrivateFrameworks/UserManagement.framework/UserManagement

                      0x2bf06000 - 0x2bf0cfff libnetwork.dylib armv7  <46dcdedf016832d1a7d136b9bb4cdbe4> /usr/lib/libnetwork.dylib

                      0x2bf1e000 - 0x2bf3efff Network armv7  <0b5fc06f53df3909bf41ce3d3d27eb73> /System/Library/PrivateFrameworks/Network.framework/Network

                      0x2ea04000 - 0x2eb07fff NetworkExtension armv7  <0d2bdc34346d36d5a794cdd1aa04f1f0> /System/Library/Frameworks/NetworkExtension.framework/NetworkExtension

                      0x2f901000 - 0x2f955fff CoreBrightness armv7  <af388eec70c137bda1a1050453286503> /System/Library/PrivateFrameworks/CoreBrightness.framework/CoreBrightness

                      0x36a7d000 - 0x36a81fff sdk.dylib armv7  <1dd3d333385c32ee9eb01a5c622ca8a2> /System/Library/Caches/com.apple.xpc/sdk.dylib

                       

                       

                      Error Formulating Crash Report:

                      Failed while requesting activity/breadcrumb diagnostics

                        • Re: ipv6+vpn+ios
                          eskimo Apple Staff Apple Staff (6,665 points)

                          That crash report doesn’t match your initial symptoms.  Specifically, the crashing thread’s backtrace is this:

                          Thread 4 name:  Dispatch queue: com.apple.root.background-qos
                          Thread 4 Crashed:
                          0  … objc_release + 8
                          1  … (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 388
                          2  … _dispatch_root_queue_drain + 1896
                          3  … _dispatch_worker_thread3 + 96
                          4  … _pthread_wqthread + 1024
                          5  … start_wqthread + 8
                          …
                          

                          That looks like a typical memory management bug (over-releasing an object, which causes the process to crash when the autorelease pool is popped).  I recommend digging into this with standard memory management tools (zombies, address sanitiser).

                          Share and Enjoy

                          Quinn “The Eskimo!”
                          Apple Developer Relations, Developer Technical Support, Core OS/Hardware
                          let myEmail = "eskimo" + "1" + "@apple.com"

                            • Re: ipv6+vpn+ios
                              sai_kapil Level 1 Level 1 (0 points)

                              Hi Eskimo,

                               

                              Thanks for pointing out. I fixed this issue but still I don't see and IPv6 traffic flowing. Following is the NEPacketTunnelSettings I am using. Please let me know if any other things are required. PS: I am using a dual stack server.

                              {

                                  tunnelRemoteAddress = FD53:2C13:1FDE:0:0:0:0:1

                                  DNSSettings = {

                                      server = (

                                          8.8.8.8,

                                          2001:4860:4860:0:0:0:0:8888,

                                          208.67.222.222,

                                      )

                                      matchDomainsNoSearch = NO

                                  }

                                  IPv4Settings = {

                                      configMethod = PPP

                                      addresses = (

                                          172.40.0.18,

                                      )

                                      subnetMasks = (

                                          255.255.0.0,

                                      )

                                      includedRoutes = (

                                          {

                                              destinationAddress = 0.0.0.0

                                              destinationSubnetMask = 0.0.0.0

                                          },

                                          {

                                              destinationAddress = 0.0.0.0

                                              destinationSubnetMask = 255.255.255.255

                                          },

                                      )

                                      excludedRoutes = (

                                      )

                                      overridePrimary = NO

                                  }

                                  IPv6Settings = {

                                      configMethod = automatic

                                      addresses = (

                                          FD53:2C13:1FDE:0:0:0:0:12,

                                      )

                                      networkPrefixLengths = (

                                          48,

                                      )

                                      includedRoutes = (

                                          {

                                              destinationAddress = ::

                                              destinationNetworkPrefixLength = 0

                                          },

                                          {

                                              destinationAddress = ::1

                                              destinationNetworkPrefixLength = 64

                                          },

                                      )

                                      excludedRoutes = (

                                      )

                                  }

                                  MTU = 1500

                              }