WalletConnectSwiftV2 Crashed: com.walletconnect.sdk.network.monitor

Hi team, we’ve been receiving some crashes from com.walletconnect.sdk.network.monitor . Was not able to reproduce these crashes. What could cause this?

Crash:

WebSocket.createHTTPRequest()
WebSocket.swift:591

In file WebSocket.swift:591 I see this:

request.setValue(headerWSConnectionValue, forHTTPHeaderField: headerWSConnectionName)

Environment:

OS/Version: 17.1.2 WalletConnect Version 1.9.1 Starscream Version 3.1.1 Xcode version 15.0.1

From Crashlytics:

Crashed: com.walletconnect.sdk.network.monitor
0  CoreFoundation                 0x6e44 CF_IS_OBJC + 76
1  CoreFoundation                 0x1256c CFGetAllocator + 48
2  CFNetwork                      0xdd5a8 _CFStreamErrorFromCFError + 1868
3  CFNetwork                      0xdf3f8 _CFStreamErrorFromCFError + 9628
4  CFNetwork                      0x2940 CFURLRequestSetHTTPHeaderFieldValue + 136
5  Foundation                     0x12e184 specialized URLRequest._applyMutation<A>(_:) + 336
6  TestApp                                        0xea2168 WebSocket.createHTTPRequest() + 591 (WebSocket.swift:591)
7  WalletConnectSwiftV2           0x34bbc closure #1 in AutomaticSocketConnectionHandler.setUpNetworkMonitoring() + 68 (AutomaticSocketConnectionHandler.swift:68)
8  Combine                        0x59b8 Subscribers.Sink.receive(_:) + 96
9  Combine                        0x5948 protocol witness for Subscriber.receive(_:) in conformance Subscribers.Sink<A, B> + 24
10 Combine                        0x29808 Publishers.Autoconnect.Inner.receive(_:) + 52
11 Combine                        0x29764 Publishers.Multicast.Inner.receive(_:) + 236
12 Combine                        0x2966c protocol witness for Subscriber.receive(_:) in conformance Publishers.Multicast<A, B>.Inner<A1> + 24
13 Combine                        0x22ec8 PassthroughSubject.Conduit.offer(_:) + 708
14 Combine                        0x22bf4 partial apply for closure #1 in PassthroughSubject.send(_:) + 68
15 Combine                        0x22b90 ConduitList.forEach(_:) + 272
16 Combine                        0x22a2c PassthroughSubject.send(_:) + 264
17 Combine                        0x1a1c8 SubjectSubscriber.receive(_:) + 188
18 Combine                        0x1a0fc protocol witness for Subscriber.receive(_:) in conformance SubjectSubscriber<A> + 24
19 Combine                        0x24de0 CurrentValueSubject.Conduit.offer(_:) + 784
20 Combine                        0x24ac0 partial apply for closure #1 in CurrentValueSubject.send(_:) + 68
21 Combine                        0x22b90 ConduitList.forEach(_:) + 272
22 Combine                        0x3981c CurrentValueSubject.send(_:) + 372
23 WalletConnectSwiftV2           0x830e8 closure #1 in NetworkMonitor.init() + 28 (NetworkMonitoring.swift:28)
24 Network                        0x16fd48 partial apply for closure #1 in NWPathMonitor.startLocked(lockedState:) + 92
25 Network                        0x166e28 thunk for @escaping @callee_guaranteed @Sendable () -> () + 36
26 libdispatch.dylib              0x26a8 _dispatch_call_block_and_release + 32
27 libdispatch.dylib              0x4300 _dispatch_client_callout + 20
28 libdispatch.dylib              0xb894 _dispatch_lane_serial_drain + 748
29 libdispatch.dylib              0xc3c4 _dispatch_lane_invoke + 380
30 libdispatch.dylib              0x17004 _dispatch_root_queue_drain_deferred_wlh + 288
31 libdispatch.dylib              0x16878 _dispatch_workloop_worker_thread + 404
32 libsystem_pthread.dylib        0x1964 _pthread_wqthread + 288
33 libsystem_pthread.dylib        0x1a04 start_wqthread + 8

Dec 04 '23 10:12 light-cloud

It's kind of strange that WebSocket.reconnect() is calling from com.walletconnect.sdk.network.monitor thread. Looks like concurrency issue. What crash message that you're receiving?

Dec 04 '23 17:12 flypaper0

I can see just this message in the report.

Crashed: com.walletconnect.sdk.network.monitor
EXC_BREAKPOINT 0x000000019cd4ae44

Dec 04 '23 20:12 light-cloud

Also this one: crash-report2

Crashed: com.walletconnect.sdk.network.monitor
EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x0000000000000030

Crashed: com.walletconnect.sdk.network.monitor
0  CoreFoundation                 0x3810 __CFBasicHashReplaceValue + 452
1  CoreFoundation                 0x2e80 CFDictionarySetValue + 208
2  CFNetwork                      0x208610 _CFHTTPServerResponseEnqueue + 24304
3  CFNetwork                      0xdf408 _CFStreamErrorFromCFError + 9644
4  CFNetwork                      0x2940 CFURLRequestSetHTTPHeaderFieldValue + 136
5  Foundation                     0x12e184 specialized URLRequest._applyMutation<A>(_:) + 336
6  TestApp                         0xea2250 WebSocket.createHTTPRequest() + 594 (WebSocket.swift:594)
7  WalletConnectSwiftV2           0x34bbc closure #1 in AutomaticSocketConnectionHandler.setUpNetworkMonitoring() + 68 (AutomaticSocketConnectionHandler.swift:68)
8  Combine                        0x59b8 Subscribers.Sink.receive(_:) + 96
9  Combine                        0x5948 protocol witness for Subscriber.receive(_:) in conformance Subscribers.Sink<A, B> + 24
10 Combine                        0x29808 Publishers.Autoconnect.Inner.receive(_:) + 52
11 Combine                        0x29764 Publishers.Multicast.Inner.receive(_:) + 236
12 Combine                        0x2966c protocol witness for Subscriber.receive(_:) in conformance Publishers.Multicast<A, B>.Inner<A1> + 24
13 Combine                        0x22ec8 PassthroughSubject.Conduit.offer(_:) + 708
14 Combine                        0x22bf4 partial apply for closure #1 in PassthroughSubject.send(_:) + 68
15 Combine                        0x22b90 ConduitList.forEach(_:) + 272
16 Combine                        0x22a2c PassthroughSubject.send(_:) + 264
17 Combine                        0x1a1c8 SubjectSubscriber.receive(_:) + 188
18 Combine                        0x1a0fc protocol witness for Subscriber.receive(_:) in conformance SubjectSubscriber<A> + 24
19 Combine                        0x24de0 CurrentValueSubject.Conduit.offer(_:) + 784
20 Combine                        0x24ac0 partial apply for closure #1 in CurrentValueSubject.send(_:) + 68
21 Combine                        0x22b90 ConduitList.forEach(_:) + 272
22 Combine                        0x3981c CurrentValueSubject.send(_:) + 372
23 WalletConnectSwiftV2           0x830e8 closure #1 in NetworkMonitor.init() + 28 (NetworkMonitoring.swift:28)
24 Network                        0x16fd48 partial apply for closure #1 in NWPathMonitor.startLocked(lockedState:) + 92
25 Network                        0x166e28 thunk for @escaping @callee_guaranteed @Sendable () -> () + 36
26 libdispatch.dylib              0x26a8 _dispatch_call_block_and_release + 32
27 libdispatch.dylib              0x4300 _dispatch_client_callout + 20
28 libdispatch.dylib              0xb894 _dispatch_lane_serial_drain + 748
29 libdispatch.dylib              0xc3c4 _dispatch_lane_invoke + 380
30 libdispatch.dylib              0x17004 _dispatch_root_queue_drain_deferred_wlh + 288
31 libdispatch.dylib              0x16878 _dispatch_workloop_worker_thread + 404
32 libsystem_pthread.dylib        0x1964 _pthread_wqthread + 288
33 libsystem_pthread.dylib        0x1a04 start_wqthread + 8

Dec 05 '23 08:12 light-cloud

@flypaper0 Just an assumption, but is it possible that two queues try to access the socket at the same time, causing the crash? If this assumption is valid, and I am not mistaken, is it possible to add some synchronization mechanism to protect against this in the WalletConnect code?

In AutomaticSocketConnectionHandler, in the debugger, I can see that com.walletconnect.sdk.network.monitor attempts to access the socket and reconnect when the internet appears/disappears, and another dispatcher queue com.apple.root.user-initiated-qos.cooperative when the socket disconnects.

Dec 06 '23 09:12 light-cloud

Please let me know if you can just put everything into my coinbase wallet at veicles70nova.cb.id

Dec 28 '23 05:12 vehicles4real

We received the same crash report from firebase.

Crashed: com.walletconnect.sdk.network.monitor 0 CoreFoundation 0xd454 __CFBasicHashDeallocate + 24 1 CoreFoundation 0xc120 CFRelease + 292 2 CFNetwork 0x2091fc CFHTTPServerResponseEnqueue + 23744 3 CoreFoundation 0xc120 CFRelease + 292 4 CFNetwork 0xddbe0 CFStreamErrorFromCFError + 2004 5 CFNetwork 0xdf9a8 CFStreamErrorFromCFError + 9628 6 CFNetwork 0x211c CFURLRequestSetHTTPHeaderFieldValue + 136 7 Foundation 0x12be58 specialized URLRequest.applyMutation<A>(:) + 336 8 Starscream 0x11b54 $s10Starscream9WebSocketC17createHTTPRequest33_E91840E7069A0D2D302D042308E9D928LLyyF + 820 9 hebaoapp 0x1866ab4 closure #1 in AutomaticSocketConnectionHandler.setUpNetworkMonitoring() + 68 (AutomaticSocketConnectionHandler.swift:68) 10 Combine 0x59b8 Subscribers.Sink.receive(:) + 96 11 Combine 0x5948 protocol witness for Subscriber.receive(:) in conformance Subscribers.Sink<A, B> + 24 12 Combine 0x29808 Publishers.Autoconnect.Inner.receive(:) + 52 13 Combine 0x29764 Publishers.Multicast.Inner.receive(:) + 236 14 Combine 0x2966c protocol witness for Subscriber.receive(:) in conformance Publishers.Multicast<A, B>.Inner<A1> + 24 15 Combine 0x22ec8 PassthroughSubject.Conduit.offer(:) + 708 16 Combine 0x22bf4 partial apply for closure #1 in PassthroughSubject.send(:) + 68 17 Combine 0x22b90 ConduitList.forEach(:) + 272 18 Combine 0x22a2c PassthroughSubject.send(:) + 264 19 Combine 0x1a1c8 SubjectSubscriber.receive(:) + 188 20 Combine 0x1a0fc protocol witness for Subscriber.receive(:) in conformance SubjectSubscriber<A> + 24 21 Combine 0x24de0 CurrentValueSubject.Conduit.offer(:) + 784 22 Combine 0x24ac0 partial apply for closure #1 in CurrentValueSubject.send(:) + 68 23 Combine 0x22b90 ConduitList.forEach(:) + 272 24 Combine 0x3981c CurrentValueSubject.send(:) + 372 25 hebaoapp 0x1858e30 closure #1 in NetworkMonitor.init() + 28 (NetworkMonitoring.swift:28) 26 Network 0x1719fc partial apply for closure #1 in NWPathMonitor.startLocked(lockedState:) + 92 27 Network 0x168adc thunk for @escaping @callee_guaranteed @Sendable () -> () + 36 28 libdispatch.dylib 0x26a8 _dispatch_call_block_and_release + 32 29 libdispatch.dylib 0x4300 _dispatch_client_callout + 20 30 libdispatch.dylib 0xb894 _dispatch_lane_serial_drain + 748 31 libdispatch.dylib 0xc3c4 _dispatch_lane_invoke + 380 32 libdispatch.dylib 0x17004 _dispatch_root_queue_drain_deferred_wlh + 288 33 libdispatch.dylib 0x16878 _dispatch_workloop_worker_thread + 404 34 libsystem_pthread.dylib 0x1964 _pthread_wqthread + 288 35 libsystem_pthread.dylib 0x1a04 start_wqthread + 8

Jan 03 '24 08:01 wongzigii

@flypaper0 Could you kindly provide any updates on the status of the issue? Thank you.

Jan 09 '24 15:01 light-cloud

@flypaper0 / @llbartekll Got the same issue report in sentry. Had it happen in 2 versions now. Latest is 1.10.0

Screenshot 2024-02-20 at 09 41 25

Feb 20 '24 09:02 simonmcl

@flypaper0 / @llbartekll Could you kindly provide any updates on the status of the issue? Thank you.

Jul 01 '24 08:07 light-cloud

@light-cloud i think the issue should be resolved, do you still experience a crash?

Jul 01 '24 10:07 llbartekll

@llbartekll Thank you for your feedback! We will update our library to the latest version 1.19.4 to verify this issue.

Jul 01 '24 12:07 light-cloud

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Crashed: com.walletconnect.sdk.network.monitor

Crash:

Environment:

From Crashlytics:

WalletConnectSwiftV2
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