出现了死锁，希望解决一下

[NicolasKim]

CoreTelephony`-[CTCellularData restrictedState]:
    0x1132fef20 <+0>:   pushq  %rbp
    0x1132fef21 <+1>:   movq   %rsp, %rbp
    0x1132fef24 <+4>:   pushq  %r14
    0x1132fef26 <+6>:   pushq  %rbx
    0x1132fef27 <+7>:   subq   $0x50, %rsp
    0x1132fef2b <+11>:  xorl   %eax, %eax
    0x1132fef2d <+13>:  leaq   -0x30(%rbp), %rbx
    0x1132fef31 <+17>:  movq   %rax, (%rbx)
    0x1132fef34 <+20>:  movq   %rbx, 0x8(%rbx)
    0x1132fef38 <+24>:  movabsq $0x2020000000, %rcx       ; imm = 0x2020000000 
    0x1132fef42 <+34>:  movq   %rcx, 0x10(%rbx)
    0x1132fef46 <+38>:  movq   %rax, 0x18(%rbx)
    0x1132fef4a <+42>:  movq   0x64d4f(%rip), %rax       ; CTCellularData._cuPolicyClientQueue
    0x1132fef51 <+49>:  movq   (%rdi,%rax), %rax
    0x1132fef55 <+53>:  movq   0x390cc(%rip), %rcx       ; (void *)0x000000011c50c070: _NSConcreteStackBlock
    0x1132fef5c <+60>:  leaq   -0x60(%rbp), %rsi
    0x1132fef60 <+64>:  movq   %rcx, (%rsi)
    0x1132fef63 <+67>:  movl   $0xc2000000, %ecx         ; imm = 0xC2000000 
    0x1132fef68 <+72>:  movq   %rcx, 0x8(%rsi)
    0x1132fef6c <+76>:  leaq   0x40(%rip), %rcx          ; __33-[CTCellularData restrictedState]_block_invoke
    0x1132fef73 <+83>:  movq   %rcx, 0x10(%rsi)
    0x1132fef77 <+87>:  leaq   0x4035a(%rip), %rcx       ; __block_descriptor_48_e8_32o40r_e5_v8@?0l
    0x1132fef7e <+94>:  movq   %rcx, 0x18(%rsi)
    0x1132fef82 <+98>:  movq   %rbx, 0x28(%rsi)
    0x1132fef86 <+102>: movq   %rdi, 0x20(%rsi)
    0x1132fef8a <+106>: movq   %rax, %rdi
    0x1132fef8d <+109>: callq  0x11330abca               ; symbol stub for: dispatch_sync
->  0x1132fef92 <+114>: movq   0x8(%rbx), %rax
    0x1132fef96 <+118>: movq   0x18(%rax), %r14
    0x1132fef9a <+122>: movl   $0x8, %esi
    0x1132fef9f <+127>: movq   %rbx, %rdi
    0x1132fefa2 <+130>: callq  0x11330a918               ; symbol stub for: _Block_object_dispose
    0x1132fefa7 <+135>: movq   %r14, %rax
    0x1132fefaa <+138>: addq   $0x50, %rsp
    0x1132fefae <+142>: popq   %rbx
    0x1132fefaf <+143>: popq   %r14
    0x1132fefb1 <+145>: popq   %rbp
    0x1132fefb2 <+146>: retq   

frame #0: 0x000000011c7a7bf6 libsystem_kernel.dylib`__psynch_rw_wrlock + 10
    frame #1: 0x000000011c8059be libsystem_pthread.dylib`_pthread_rwlock_lock_wait + 75
    frame #2: 0x000000011c803cb0 libsystem_pthread.dylib`_pthread_rwlock_lock_slow + 547
    frame #3: 0x000000011124f98f libBacktraceRecording.dylib`remove_stack_from_backtrace_uniquing_table + 32
    frame #4: 0x000000011124ca11 libBacktraceRecording.dylib`decrement_work_item_refcount + 80
    frame #5: 0x000000011124c316 libBacktraceRecording.dylib`gcd_queue_item_complete_hook + 166
    frame #6: 0x000000011c41fd46 libdispatch.dylib`_dispatch_lane_barrier_sync_invoke_and_complete + 194
  * frame #7: 0x00000001132fef92 CoreTelephony`-[CTCellularData restrictedState] + 114
    frame #8: 0x000000010da68491 FYDriverNew`-[ZYNetworkAccessibity startCheck](self=0x0000600003afe580, _cmd="startCheck") at ZYNetworkAccessibity.m:303:57
    frame #9: 0x000000010da68717 FYDriverNew`__34-[ZYNetworkAccessibity startCheck]_block_invoke.97(.block_descriptor=0x000060000177d080) at ZYNetworkAccessibity.m:326:17
    frame #10: 0x000000011c411db5 libdispatch.dylib`_dispatch_client_callout + 8
    frame #11: 0x000000011c414c95 libdispatch.dylib`_dispatch_continuation_pop + 552
    frame #12: 0x000000011c426e93 libdispatch.dylib`_dispatch_source_invoke + 2249
    frame #13: 0x000000011c41eead libdispatch.dylib`_dispatch_main_queue_callback_4CF + 1073
    frame #14: 0x000000011b381a79 CoreFoundation`__CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
    frame #15: 0x000000011b37c126 CoreFoundation`__CFRunLoopRun + 2310
    frame #16: 0x000000011b37b4d2 CoreFoundation`CFRunLoopRunSpecific + 626
    frame #17: 0x000000011d9b02fe GraphicsServices`GSEventRunModal + 65
    frame #18: 0x0000000123289fc2 UIKitCore`UIApplicationMain + 140
    frame #19: 0x000000010de7ec5b FYDriverNew`main at AppDelegate.swift:14:7
    frame #20: 0x000000011c486541 libdyld.dylib`start + 1

[NicolasKim]

上面是汇编堆栈，下面是代码调用堆栈

[ziecho]

请问如何复现？iOS 版本多少

[longlongago]

猜测跟libBacktraceRecording库有关系，这个是debug下做调试用的