FoundationStreamBridge.open crashes sometimes on app launch
Closed this issue · 4 comments
maxchuquimia commented
Describe the bug
We use amplify-swift for auth in our app, which uses the packages aws-sdk-swift, which uses smithy-swift.
We get 1-2 crashes per day from FoundationStreamBridge.open that seem to happen immediately after launch (potentially even before any of our code runs). We are unable to reproduce the crash, and it happens on both iOS16 and iOS17. See below, noting "MyProject" is the app wrapper and "App" is our own Swift Package where all our code is written.
Expected Behavior
Our app should not crash on launch.
Current Behavior
OS Version: iOS 17.4.1 (21E236)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: SEGV_NOOP at 0x000000000000000c
Crashed Thread: 4
Application Specific Information:
Exception 1, Code 1, Subcode 12 >
KERN_INVALID_ADDRESS at 0xc.
Thread 4 Crashed:
0 CoreFoundation 0x32d25bb30 CFRunLoopWakeUp
1 CoreFoundation 0x32d25bb28 CFRunLoopWakeUp
2 Foundation 0x32affdb94 -[NSThread _nq:]
3 Foundation 0x32affd8ac -[NSObject(NSThreadPerformAdditions) performSelector:onThread:withObject:waitUntilDone:modes:]
4 Foundation 0x32b01f0b8 -[NSObject(NSThreadPerformAdditions) performSelector:onThread:withObject:waitUntilDone:]
5 App 0x10405fd50 FoundationStreamBridge.open
6 App 0x10405de04 thunk for closure
7 libdispatch.dylib 0x33cfe8138 _dispatch_call_block_and_release
8 libdispatch.dylib 0x33cfe9dd0 _dispatch_client_callout
9 libdispatch.dylib 0x33cff13fc _dispatch_lane_serial_drain
10 libdispatch.dylib 0x33cff1f2c _dispatch_lane_invoke
11 libdispatch.dylib 0x33cffccb0 _dispatch_root_queue_drain_deferred_wlh
12 libdispatch.dylib 0x33cffc524 _dispatch_workloop_worker_thread
13 libsystem_pthread.dylib 0x3e51b7f1c _pthread_wqthread
Thread 0
0 libsystem_kernel.dylib 0x3bdca9af8 mach_msg2_trap
1 libsystem_kernel.dylib 0x3bdca988c mach_msg2_internal
2 libsystem_kernel.dylib 0x3bdca97a4 mach_msg_overwrite
3 libsystem_kernel.dylib 0x3bdca95e4 mach_msg
4 CoreFoundation 0x32d22a018 __CFRunLoopServiceMachPort
5 CoreFoundation 0x32d227f00 __CFRunLoopRun
6 CoreFoundation 0x32d227964 CFRunLoopRunSpecific
7 GraphicsServices 0x3b58434dc GSEventRunModal
8 UIKitCore 0x331916ed8 -[UIApplication _run]
9 UIKitCore 0x331916514 UIApplicationMain
10 SwiftUI 0x335e9b85c OUTLINED_FUNCTION_39
11 SwiftUI 0x335e9b6a4 OUTLINED_FUNCTION_39
12 SwiftUI 0x335ab79f8 7SwiftUI4ViewRzlAA15ModifiedContentVyxAA30_EnvironmentKeyWritingModifierVySbGGAaBHPxAaBHD1__AgA0cI0HPyHCHCTm
13 MyProject 0x202cd04e0 [inlined] MyProjectApp.$main
14 MyProject 0x202cd04e0 main
15 <unknown> 0x1c8592d84 <redacted>
Thread 1
0 libsystem_kernel.dylib 0x3bdcb2084 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e51b7f68 _pthread_wqthread
Thread 2
0 libsystem_kernel.dylib 0x3bdcb2084 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e51b7f68 _pthread_wqthread
Thread 3
0 libsystem_kernel.dylib 0x3bdcb2084 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e51b7f68 _pthread_wqthread
Thread 4 Crashed:
0 CoreFoundation 0x32d25bb30 CFRunLoopWakeUp
1 CoreFoundation 0x32d25bb28 CFRunLoopWakeUp
2 Foundation 0x32affdb94 -[NSThread _nq:]
3 Foundation 0x32affd8ac -[NSObject(NSThreadPerformAdditions) performSelector:onThread:withObject:waitUntilDone:modes:]
4 Foundation 0x32b01f0b8 -[NSObject(NSThreadPerformAdditions) performSelector:onThread:withObject:waitUntilDone:]
5 App 0x10405fd50 FoundationStreamBridge.open
6 App 0x10405de04 thunk for closure
7 libdispatch.dylib 0x33cfe8138 _dispatch_call_block_and_release
8 libdispatch.dylib 0x33cfe9dd0 _dispatch_client_callout
9 libdispatch.dylib 0x33cff13fc _dispatch_lane_serial_drain
10 libdispatch.dylib 0x33cff1f2c _dispatch_lane_invoke
11 libdispatch.dylib 0x33cffccb0 _dispatch_root_queue_drain_deferred_wlh
12 libdispatch.dylib 0x33cffc524 _dispatch_workloop_worker_thread
13 libsystem_pthread.dylib 0x3e51b7f1c _pthread_wqthread
Thread 5
0 AppSSOCore 0x3c343a2c0 __53+[SOInternalProtocols interfaceWithInternalProtocol:]_block_invoke
1 libdispatch.dylib 0x33cfe9dd0 _dispatch_client_callout
2 libdispatch.dylib 0x33cfeb650 _dispatch_once_callout
3 AppSSOCore 0x3c3439540 +[SOInternalProtocols interfaceWithInternalProtocol:]
4 AppSSOCore 0x3c3439138 -[SOServiceConnection _connectToService]
5 AppSSOCore 0x3c3439064 -[SOServiceConnection initWithQueue:]
6 AppSSOCore 0x3c3438fe4 -[SOClient init]
7 AppSSOCore 0x3c3438f1c -[SOConfigurationClient init]
8 AppSSOCore 0x3c3438e3c __38+[SOConfigurationClient defaultClient]_block_invoke
9 libdispatch.dylib 0x33cfe9dd0 _dispatch_client_callout
10 libdispatch.dylib 0x33cfeb650 _dispatch_once_callout
11 AppSSOCore 0x3c3438c84 +[SOConfigurationClient defaultClient]
12 AppSSOCore 0x3c3437d5c +[SOAuthorizationCore _canPerformAuthorizationWithURL:responseCode:callerBundleIdentifier:useInternalExtensions:]
13 CFNetwork 0x32f63ce78 CFHTTPCookieStorageUnscheduleFromRunLoop
14 CFNetwork 0x32f4d3af4 CFURLProtectionSpaceReceivesCredentialSecurely
15 CFNetwork 0x32f503bc8 CFURLDownloadStart
16 CFNetwork 0x32f4715bc _CFNetworkSetHSTSStoragePath
17 CFNetwork 0x32f4712c8 _CFNetworkSetHSTSStoragePath
18 CFNetwork 0x32f471180 _CFNetworkSetHSTSStoragePath
19 CFNetwork 0x32f48fd74 CFHTTPMessageCopySerializedMessage
20 CFNetwork 0x32f6d6858 estimatedPropertyListSize
21 libdispatch.dylib 0x33cfe8138 _dispatch_call_block_and_release
22 libdispatch.dylib 0x33cfe9dd0 _dispatch_client_callout
23 libdispatch.dylib 0x33cff13fc _dispatch_lane_serial_drain
24 libdispatch.dylib 0x33cff1f60 _dispatch_lane_invoke
25 libdispatch.dylib 0x33cffccb0 _dispatch_root_queue_drain_deferred_wlh
26 libdispatch.dylib 0x33cffc524 _dispatch_workloop_worker_thread
27 libsystem_pthread.dylib 0x3e51b7f1c _pthread_wqthread
Thread 6
0 libsystem_pthread.dylib 0x3e51b7fb8 start_wqthread
Thread 7 name: com.apple.uikit.eventfetch-thread
0 libsystem_kernel.dylib 0x3bdca9af8 mach_msg2_trap
1 libsystem_kernel.dylib 0x3bdca988c mach_msg2_internal
2 libsystem_kernel.dylib 0x3bdca97a4 mach_msg_overwrite
3 libsystem_kernel.dylib 0x3bdca95e4 mach_msg
4 CoreFoundation 0x32d22a018 __CFRunLoopServiceMachPort
5 CoreFoundation 0x32d227f00 __CFRunLoopRun
6 CoreFoundation 0x32d227964 CFRunLoopRunSpecific
7 Foundation 0x32af4d4a4 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
8 Foundation 0x32af774e4 -[NSRunLoop(NSRunLoop) runUntilDate:]
9 UIKitCore 0x331879ac4 -[UIEventFetcher threadMain]
10 Foundation 0x32afbea98 __NSThread__start__
11 libsystem_pthread.dylib 0x3e51b8a8c _pthread_start
Thread 8
0 libsystem_kernel.dylib 0x3bdcb2084 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e51b7f68 _pthread_wqthread
Thread 9
0 libsystem_kernel.dylib 0x3bdcb2084 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e51b7f68 _pthread_wqthread
Thread 10
0 libsystem_kernel.dylib 0x3bdcb2084 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e51b7f68 _pthread_wqthread
Thread 11
0 libsystem_kernel.dylib 0x3bdcb2084 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e51b7f68 _pthread_wqthread
Thread 12
0 libsystem_kernel.dylib 0x3bdcb2084 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e51b7f68 _pthread_wqthread
Thread 13
0 libsystem_kernel.dylib 0x3bdcb2084 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e51b7f68 _pthread_wqthread
Thread 14
0 libsystem_kernel.dylib 0x3bdcaa2f8 __semwait_signal
1 libsystem_c.dylib 0x33d07de9c nanosleep
2 libsystem_c.dylib 0x33d08c154 sleep
3 App 0x104519178 monitorCachedData (SentryCrashCachedData.c:145)
4 libsystem_pthread.dylib 0x3e51b8a8c _pthread_start
Thread 15 name: SentryCrash Exception Handler (Secondary)
0 libsystem_kernel.dylib 0x3bdca9af8 mach_msg2_trap
1 libsystem_kernel.dylib 0x3bdca988c mach_msg2_internal
2 libsystem_kernel.dylib 0x3bdca97a4 mach_msg_overwrite
3 libsystem_kernel.dylib 0x3bdca95e4 mach_msg
4 App 0x104514f74 handleExceptions (SentryCrashMonitor_MachException.c:314)
5 libsystem_pthread.dylib 0x3e51b8a8c _pthread_start
Thread 17 name: io.sentry.app-hang-tracker
0 libsystem_kernel.dylib 0x3bdcaa2f8 __semwait_signal
1 libsystem_c.dylib 0x33d07de9c nanosleep
2 Foundation 0x32b6726bc +[NSThread sleepForTimeInterval:]
3 App 0x1044a9404 -[SentryANRTracker detectANRs] (SentryANRTracker.m:105)
4 Foundation 0x32afbea98 __NSThread__start__
5 libsystem_pthread.dylib 0x3e51b8a8c _pthread_start
Thread 18
0 libsystem_kernel.dylib 0x3bdcaa49c __psynch_cvwait
1 libsystem_pthread.dylib 0x3e51b758c _pthread_cond_wait
2 App 0x103fa538c aws_condition_variable_wait (condition_variable.c:74)
3 App 0x103f9a3b4 aws_condition_variable_wait_pred (condition_variable.c:16)
4 App 0x103fa27b8 aws_background_logger_thread (log_channel.c:157)
5 App 0x103fa7a00 thread_fn (thread.c:177)
6 libsystem_pthread.dylib 0x3e51b8a8c _pthread_start
Thread 19
0 libsystem_kernel.dylib 0x3bdcb78cc kevent
1 App 0x103fb2c34 aws_event_loop_thread (kqueue_event_loop.c:876)
2 App 0x103fa7a00 thread_fn (thread.c:177)
3 libsystem_pthread.dylib 0x3e51b8a8c _pthread_start
Thread 4 crashed with ARM Thread State (64-bit):
x0: 0x0000000000000000 x1: 0x0000000000000000 x2: 0x0000000000000100 x3: 0x0000000000000000
x4: 0x00000000000120a8 x5: 0x0000000000002340 x6: 0x000000030157e220 x7: 0x0000000000000000
x8: 0x0000000000000000 x9: 0x0000000000000000 x10: 0x0000000000000002 x11: 0x000000000000d142
x12: 0x0000000000000001 x13: 0x0000010000000102 x14: 0x0000010000000202 x15: 0x00000002065e3fd8
x16: 0x000000000000012d x17: 0x00000002117454d0 x18: 0x0000000000000000 x19: 0x0000000302031a40
x20: 0x0000000302031a50 x21: 0x000000030172c1b0 x22: 0x0000000000000000 x23: 0x000000020d0ffeb0
x24: 0x000000020d108b80 x25: 0x000000030202c6c0 x26: 0x0000000000000001 x27: 0x0000000000000001
x28: 0x000000020d108b80 fp: 0x000000016d35e520 lr: 0xd70a3a01a50a5b2c sp: 0x000000016d35e3e0
pc: 0x00000001a50a5b30 cpsr: 0x0000000080001000
EOF
Reproduction Steps
Unknown, the app seems to just crash immediately after a user launches it.
Possible Solution
As far as we can tell this crash only started happening when we updated from Amplify 2.25.4 to 2.27.0, which in turn seems to have updated aws-sdk-swift. It is very difficult to tell definitively what changed in relation to smith-swift there 😅
Additional Information/Context
No response
AWS SWIFT SDK version used
aws-sdk-swift 0.36.1 via Amplify 2.27.0
Compiler and Version used
Xcode 15.1, swift-tools-version 5.7
Operating System and version
macOS 14.2.1 (23C71)
jbelkins commented
Hi @maxchuquimia , thank you for your report. Extra thanks for the additional detail!
We haven't seen a crash of this type before, so we'll try to reproduce it. We may reach out if we need additional info. Once we have a fix for you, we'll post it here so you can update to it.
jbelkins commented
@maxchuquimia: Please update to amplify-swift 2.33.2 and see if that affects your crash rate.
https://github.com/aws-amplify/amplify-swift/releases/tag/2.33.2
We were unable to reproduce the crash you reported, but we refactored some HTTP client code in a way that should enhance stability.
Please let us know how this affects your crash rate. Thanks!
maxchuquimia commented
Cheers @jbelkins, will report back after we release!
maxchuquimia commented
@jbelkins This crash is no longer happening in versions of our app after updating, thank you!