Comments (8)
atierian
commented on June 12, 2024
Thanks for opening this @fzy-spyro
Please include the full crash report; it has important information that will help us diagnose this. Thanks!
from amplify-swift.
fzy-spyro
commented on June 12, 2024
@atierian Here's the full crash log:
OS Version: iOS 17.1.2 (21B101)
Report Version: 104
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Crashed Thread: 13
Application Specific Information:
Could not allocate memory.
Thread 13 Crashed:
0 libswiftCore.dylib 0x304e18f64 swift::swift_slowAllocTyped
1 libswiftCore.dylib 0x304d5916c swift::swift_slowAllocTyped
2 libswiftCore.dylib 0x304d5dcf8 _swift_allocObject_
3 SampleApp 0x2011c5164 _ContiguousArrayBuffer.init
4 SampleApp 0x2011c51f0 [inlined] _ContiguousArrayBuffer.init
5 SampleApp 0x2011c51f0 [inlined] _copyCollectionToContiguousArray<T>
6 SampleApp 0x2011c51f0 [inlined] Collection._copyToContiguousArray
7 SampleApp 0x2011c51f0 [inlined] [A : B].Values
8 SampleApp 0x2011c51f0 Array.init<T>
9 SampleApp 0x2011c4cec [inlined] Array.init<T>
10 SampleApp 0x2011c4cec [inlined] AtomicDictionary.values.getter (AtomicDictionary.swift:28)
11 SampleApp 0x2011c4cec AtomicDictionary.values.getter
12 SampleApp 0x2011c4d24 AtomicDictionary.values.getter
13 SampleApp 0x2011be1f4 [inlined] thunk for closure
14 SampleApp 0x2011be1f4 [inlined] thunk for closure
15 SampleApp 0x2011be1f4 [inlined] NSLocking.execute<T> (NSLocking+Execute.swift:47)
16 SampleApp 0x2011be1f4 NSLocking.execute<T> (NSLocking+Execute.swift:38)
17 SampleApp 0x2011c3810 [inlined] AtomicDictionary.values.getter (AtomicDictionary.swift:28)
18 SampleApp 0x2011c3810 [inlined] HubChannelDispatcher.listeners.getter (HubChannelDispatcher.swift:78)
19 SampleApp 0x2011c3810 [inlined] HubChannelDispatcher (<compiler-generated>:77)
20 SampleApp 0x2011c3810 HubDispatchOperation.main (HubChannelDispatcher.swift:122)
21 SampleApp 0x2011c3c0c HubDispatchOperation.main
22 Foundation 0x3100aa9c0 __NSOPERATION_IS_INVOKING_MAIN__
23 Foundation 0x3100a9ab0 -[NSOperation start]
24 Foundation 0x3100ac5c8 __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__
25 Foundation 0x3100ac334 __NSOQSchedule_f
26 libdispatch.dylib 0x32207924c _dispatch_block_async_invoke2
27 libdispatch.dylib 0x32206a2fc _dispatch_client_callout
28 libdispatch.dylib 0x32206d7b4 _dispatch_continuation_pop
29 libdispatch.dylib 0x32206ce64 _dispatch_async_redirect_invoke
30 libdispatch.dylib 0x32207bbe0 _dispatch_root_queue_drain
31 libdispatch.dylib 0x32207c3e8 _dispatch_worker_thread2
32 libsystem_pthread.dylib 0x3e55ad924 _pthread_wqthread
Thread 0
0 libswiftCore.dylib 0x304d5dd54 swift::ConcurrentReadableHashMap<T>::find<T>
1 SwiftUI 0x31a274620 OUTLINED_FUNCTION_101
2 SwiftUI 0x31b354a58 OUTLINED_FUNCTION_2
3 SwiftUI 0x31b350d14 OUTLINED_FUNCTION_2
4 SwiftUI 0x31b3c1090 OUTLINED_FUNCTION_9
5 SwiftUI 0x31b3c10f0 OUTLINED_FUNCTION_9
6 UIKitCore 0x31656e690 -[UIView(CALayerDelegate) layoutSublayersOfLayer:]
7 QuartzCore 0x314d651bc CA::Layer::layout_if_needed
8 QuartzCore 0x314d64d44 CA::Layer::layout_and_display_if_needed
9 QuartzCore 0x314d6b274 CA::Context::commit_transaction
10 QuartzCore 0x314d64570 CA::Transaction::commit
11 QuartzCore 0x314d64218 CA::Transaction::flush_as_runloop_observer
12 CoreFoundation 0x312129a28 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__
13 CoreFoundation 0x312128430 __CFRunLoopDoObservers
14 CoreFoundation 0x312127b4c __CFRunLoopRun
15 CoreFoundation 0x312127664 CFRunLoopRunSpecific
16 GraphicsServices 0x3988ed5e8 GSEventRunModal
17 UIKitCore 0x3167682b0 -[UIApplication _run]
18 UIKitCore 0x3167678ec UIApplicationMain
19 SwiftUI 0x31ac360f8 OUTLINED_FUNCTION_31
20 SwiftUI 0x31ac35f3c OUTLINED_FUNCTION_31
21 SwiftUI 0x31a8a7864 OUTLINED_FUNCTION_26
22 SampleApp 0x200d30bf0 [inlined] AppLauncher.main
23 SampleApp 0x200d30bf0 [inlined] AppLauncher.$main (<compiler-generated>:6)
24 SampleApp 0x200d30bf0 main
25 <unknown> 0x1ace82dcc <redacted>
Thread 1
0 libsystem_kernel.dylib 0x3a0b13730 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e55ad9ac _pthread_wqthread
Thread 2
0 libsystem_kernel.dylib 0x3a0b13730 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e55ad9ac _pthread_wqthread
Thread 3
0 libsystem_kernel.dylib 0x3a0b0b9d8 __semwait_signal
1 libsystem_c.dylib 0x3220fdf1c nanosleep
2 libsystem_c.dylib 0x32210c1d8 sleep
3 SampleApp 0x2016b92cc monitorCachedData (SentryCrashCachedData.c:145)
4 libsystem_pthread.dylib 0x3e55ae4d0 _pthread_start
Thread 4 name: SentryCrash Exception Handler (Secondary)
0 libsystem_kernel.dylib 0x3a0b0b1d8 mach_msg2_trap
1 libsystem_kernel.dylib 0x3a0b0af6c mach_msg2_internal
2 libsystem_kernel.dylib 0x3a0b0f774 thread_suspend
3 SampleApp 0x2016b4f70 handleExceptions (SentryCrashMonitor_MachException.c:306)
4 libsystem_pthread.dylib 0x3e55ae4d0 _pthread_start
Thread 5 name: SentryCrash Exception Handler (Primary)
0 libsystem_kernel.dylib 0x3a0b0b1d8 mach_msg2_trap
1 libsystem_kernel.dylib 0x3a0b0af6c mach_msg2_internal
2 libsystem_kernel.dylib 0x3a0b0ae84 mach_msg_overwrite
3 libsystem_kernel.dylib 0x3a0b0acc4 mach_msg
4 SampleApp 0x2016b4f9c handleExceptions (SentryCrashMonitor_MachException.c:314)
5 libsystem_pthread.dylib 0x3e55ae4d0 _pthread_start
Thread 6 name: io.sentry.app-hang-tracker
0 libsystem_kernel.dylib 0x3a0b0b9d8 __semwait_signal
1 libsystem_c.dylib 0x3220fdf1c nanosleep
2 Foundation 0x3107806c8 +[NSThread sleepForTimeInterval:]
3 SampleApp 0x20164d8dc -[SentryANRTracker detectANRs] (SentryANRTracker.m:103)
4 Foundation 0x3100e5180 __NSThread__start__
5 libsystem_pthread.dylib 0x3e55ae4d0 _pthread_start
Thread 7
0 libsystem_kernel.dylib 0x3a0b0b1d8 mach_msg2_trap
1 libsystem_kernel.dylib 0x3a0b0af6c mach_msg2_internal
2 libsystem_kernel.dylib 0x3a0b0ae84 mach_msg_overwrite
3 libsystem_kernel.dylib 0x3a0b0acc4 mach_msg
4 Instabug 0x106ce7d38 exception_server_thread
5 libsystem_pthread.dylib 0x3e55ae4d0 _pthread_start
Thread 8 name: com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x3a0b0b1d8 mach_msg2_trap
1 libsystem_kernel.dylib 0x3a0b0af6c mach_msg2_internal
2 libsystem_kernel.dylib 0x3a0b0ae84 mach_msg_overwrite
3 libsystem_kernel.dylib 0x3a0b0acc4 mach_msg
4 CoreFoundation 0x312129d08 __CFRunLoopServiceMachPort
5 CoreFoundation 0x312127c00 __CFRunLoopRun
6 CoreFoundation 0x312127664 CFRunLoopRunSpecific
7 CFNetwork 0x3144ea77c _CFURLStorageSessionCopyIdentifier
8 Foundation 0x3100e5180 __NSThread__start__
9 libsystem_pthread.dylib 0x3e55ae4d0 _pthread_start
Thread 9 name: AwsLogger
0 libsystem_kernel.dylib 0x3a0b0bb7c __psynch_cvwait
1 libsystem_pthread.dylib 0x3e55acfd0 _pthread_cond_wait
2 SampleApp 0x201329380 aws_condition_variable_wait (condition_variable.c:74)
3 SampleApp 0x20131e504 aws_condition_variable_wait_pred (condition_variable.c:16)
4 SampleApp 0x201326818 aws_background_logger_thread (log_channel.c:157)
5 SampleApp 0x20132b4f0 thread_fn (thread.c:177)
6 libsystem_pthread.dylib 0x3e55ae4d0 _pthread_start
Thread 10 name: AwsEventLoop 1
0 libsystem_kernel.dylib 0x3a0b18f6c kevent
1 SampleApp 0x2013362ac aws_event_loop_thread (kqueue_event_loop.c:876)
2 SampleApp 0x20132b4f0 thread_fn (thread.c:177)
3 libsystem_pthread.dylib 0x3e55ae4d0 _pthread_start
Thread 11 name: com.apple.uikit.eventfetch-thread
0 libsystem_kernel.dylib 0x3a0b0b1d8 mach_msg2_trap
1 libsystem_kernel.dylib 0x3a0b0af6c mach_msg2_internal
2 libsystem_kernel.dylib 0x3a0b0ae84 mach_msg_overwrite
3 libsystem_kernel.dylib 0x3a0b0acc4 mach_msg
4 CoreFoundation 0x312129d08 __CFRunLoopServiceMachPort
5 CoreFoundation 0x312127c00 __CFRunLoopRun
6 CoreFoundation 0x312127664 CFRunLoopRunSpecific
7 Foundation 0x310060548 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
8 Foundation 0x31008e278 -[NSRunLoop(NSRunLoop) runUntilDate:]
9 UIKitCore 0x3166c9fc4 -[UIEventFetcher threadMain]
10 Foundation 0x3100e5180 __NSThread__start__
11 libsystem_pthread.dylib 0x3e55ae4d0 _pthread_start
Thread 12
0 libsystem_kernel.dylib 0x3a0b13730 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e55ad9ac _pthread_wqthread
Thread 13 Crashed:
0 libswiftCore.dylib 0x304e18f64 swift::swift_slowAllocTyped
1 libswiftCore.dylib 0x304d5916c swift::swift_slowAllocTyped
2 libswiftCore.dylib 0x304d5dcf8 _swift_allocObject_
3 SampleApp 0x2011c5164 _ContiguousArrayBuffer.init
4 SampleApp 0x2011c51f0 [inlined] _ContiguousArrayBuffer.init
5 SampleApp 0x2011c51f0 [inlined] _copyCollectionToContiguousArray<T>
6 SampleApp 0x2011c51f0 [inlined] Collection._copyToContiguousArray
7 SampleApp 0x2011c51f0 [inlined] [A : B].Values
8 SampleApp 0x2011c51f0 Array.init<T>
9 SampleApp 0x2011c4cec [inlined] Array.init<T>
10 SampleApp 0x2011c4cec [inlined] AtomicDictionary.values.getter (AtomicDictionary.swift:28)
11 SampleApp 0x2011c4cec AtomicDictionary.values.getter
12 SampleApp 0x2011c4d24 AtomicDictionary.values.getter
13 SampleApp 0x2011be1f4 [inlined] thunk for closure
14 SampleApp 0x2011be1f4 [inlined] thunk for closure
15 SampleApp 0x2011be1f4 [inlined] NSLocking.execute<T> (NSLocking+Execute.swift:47)
16 SampleApp 0x2011be1f4 NSLocking.execute<T> (NSLocking+Execute.swift:38)
17 SampleApp 0x2011c3810 [inlined] AtomicDictionary.values.getter (AtomicDictionary.swift:28)
18 SampleApp 0x2011c3810 [inlined] HubChannelDispatcher.listeners.getter (HubChannelDispatcher.swift:78)
19 SampleApp 0x2011c3810 [inlined] HubChannelDispatcher (<compiler-generated>:77)
20 SampleApp 0x2011c3810 HubDispatchOperation.main (HubChannelDispatcher.swift:122)
21 SampleApp 0x2011c3c0c HubDispatchOperation.main
22 Foundation 0x3100aa9c0 __NSOPERATION_IS_INVOKING_MAIN__
23 Foundation 0x3100a9ab0 -[NSOperation start]
24 Foundation 0x3100ac5c8 __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__
25 Foundation 0x3100ac334 __NSOQSchedule_f
26 libdispatch.dylib 0x32207924c _dispatch_block_async_invoke2
27 libdispatch.dylib 0x32206a2fc _dispatch_client_callout
28 libdispatch.dylib 0x32206d7b4 _dispatch_continuation_pop
29 libdispatch.dylib 0x32206ce64 _dispatch_async_redirect_invoke
30 libdispatch.dylib 0x32207bbe0 _dispatch_root_queue_drain
31 libdispatch.dylib 0x32207c3e8 _dispatch_worker_thread2
32 libsystem_pthread.dylib 0x3e55ad924 _pthread_wqthread
Thread 14
0 libsystem_kernel.dylib 0x3a0b0e6b0 __guarded_open_dprotected_np
1 libsystem_kernel.dylib 0x3a0b0e698 guarded_open_dprotected_np
2 libsqlite3.dylib 0x364090cf0 sqlite3_sourceid
3 libsqlite3.dylib 0x364007e08 sqlite3_snprintf
4 libsqlite3.dylib 0x36404a8c8 sqlite3_free_table
5 libsqlite3.dylib 0x36404e300 sqlite3_free_table
6 libsqlite3.dylib 0x36404db98 sqlite3_free_table
7 libsqlite3.dylib 0x364032824 sqlite3_step
8 libsqlite3.dylib 0x36402d640 sqlite3_step
9 SampleApp 0x2014c3084 Statement.step (Statement.swift:185)
10 SampleApp 0x2014c455c Statement.step
11 libswiftDispatch.dylib 0x3249a3590 thunk for closure
12 libswiftDispatch.dylib 0x3249a356c thunk for closure
13 libswiftDispatch.dylib 0x3249a34ac OS_dispatch_queue._syncHelper<T>
14 libswiftDispatch.dylib 0x3249a33e4 thunk for closure
15 libswiftDispatch.dylib 0x3249a33bc thunk for closure
16 libdispatch.dylib 0x32206a2fc _dispatch_client_callout
17 libdispatch.dylib 0x3220796b0 _dispatch_lane_barrier_sync_invoke_and_complete
18 libswiftDispatch.dylib 0x3249a4074 OS_dispatch_queue.asyncAndWait<T>
19 libswiftDispatch.dylib 0x3249a3fac OS_dispatch_queue.sync<T>
20 libswiftDispatch.dylib 0x3249a3e2c OS_dispatch_queue._syncHelper<T>
21 libswiftDispatch.dylib 0x3249a3c70 OS_dispatch_queue.asyncAndWait<T>
22 libswiftDispatch.dylib 0x3249a3bdc OS_dispatch_queue.sync<T>
23 SampleApp 0x2014c2a9c [inlined] Connection.sync<T> (Connection.swift:694)
24 SampleApp 0x2014c2a9c [inlined] Statement.step (Statement.swift:185)
25 SampleApp 0x2014c2a9c Statement.run (Statement.swift:133)
26 SampleApp 0x2014c1ed0 Statement.run (Statement.swift:143)
27 SampleApp 0x20122986c SQLiteStorageEngineAdapter.save<T> (StorageEngineAdapter+SQLite.swift:169)
28 SampleApp 0x2012291e8 SQLiteStorageEngineAdapter.save<T> (StorageEngineAdapter+SQLite.swift:138)
29 SampleApp 0x20122d3b0 SQLiteStorageEngineAdapter
30 SampleApp 0x201297334 ReconcileAndLocalSaveOperation.saveMetadata (ReconcileAndLocalSaveOperation.swift:400)
31 Combine 0x3249e331c Future.init
32 Combine 0x3249e31a8 Future.init
33 SampleApp 0x201295bc0 [inlined] Future.__allocating_init
34 SampleApp 0x201295bc0 [inlined] ReconcileAndLocalSaveOperation.saveMetadata (ReconcileAndLocalSaveOperation.swift:394)
35 SampleApp 0x201295bc0 ReconcileAndLocalSaveOperation.applyRemoteModelsDisposition (ReconcileAndLocalSaveOperation.swift:287)
36 Combine 0x3249d56a0 Publishers.FlatMap.Outer.receive
37 Combine 0x3249d5570 Publishers.FlatMap<T>.Outer<T>
38 Combine 0x3249e0868 Future.Conduit.request
39 Combine 0x3249de280 ConduitBase<T>
40 Combine 0x3249e1ce4 Publishers.FlatMap.Outer.receive
41 Combine 0x3249e1b90 Publishers.FlatMap<T>.Outer<T>
42 Combine 0x3249e9290 Future.Conduit.subscribe
43 Combine 0x3249e8cd4 Future.receive<T>
44 Combine 0x3249e88d8 Future<T>
45 Combine 0x3249d68b4 Publishers.FlatMap.receive<T>
46 Combine 0x3249d66dc Publishers.Map.receive<T>
47 Combine 0x3249d70c0 Publishers.Catch.receive<T>
48 Combine 0x3249d5880 PublisherBox.receive<T>
49 Combine 0x3249d5808 AnyPublisher.receive<T>
50 Combine 0x3249db344 Publishers.MergeMany.receive<T>
51 Combine 0x3249efb20 Publishers.Collect.receive<T>
52 Combine 0x3249f1150 Publisher.sink
53 SampleApp 0x2012963d0 ReconcileAndLocalSaveOperation.applyRemoteModelsDispositions (ReconcileAndLocalSaveOperation.swift:321)
54 Combine 0x3249e331c Future.init
55 Combine 0x3249e31a8 Future.init
56 SampleApp 0x201296048 ReconcileAndLocalSaveOperation.applyRemoteModelsDispositions
57 SampleApp 0x201294670 ReconcileAndLocalSaveOperation.reconcile (ReconcileAndLocalSaveOperation.swift:145)
58 SampleApp 0x20129ba24 [inlined] thunk for closure
59 SampleApp 0x20129ba24 thunk for closure
60 Combine 0x3249d56a0 Publishers.FlatMap.Outer.receive
61 Combine 0x3249d5570 Publishers.FlatMap<T>.Outer<T>
62 Combine 0x3249ed644 Publishers.FlatMap.Outer.receiveInner
63 Combine 0x3249ed480 Publishers.FlatMap.Outer.Side.receive
64 Combine 0x3249e0868 Future.Conduit.request
65 Combine 0x3249de280 ConduitBase<T>
66 Combine 0x3249e9448 Publishers.FlatMap.Outer.receiveInner
67 Combine 0x3249e9338 Publishers.FlatMap.Outer.Side.receive
68 Combine 0x3249e9290 Future.Conduit.subscribe
69 Combine 0x3249e8cd4 Future.receive<T>
70 Combine 0x3249e88d8 Future<T>
71 Combine 0x3249d5780 Publishers.FlatMap.Outer.receive
72 Combine 0x3249d5570 Publishers.FlatMap<T>.Outer<T>
73 Combine 0x3249d5544 Publishers.SubscribeOn.Inner.receive
74 Combine 0x3249edec8 Publishers.SubscribeOn<T>.Inner<T>
75 Combine 0x3249f1b08 Future.Conduit.fulfill
76 Combine 0x3249f1350 Future.Conduit.offer
77 Combine 0x3249f11f0 Future.promise
78 Combine 0x3249f6b8c ConduitList.forEach
79 Combine 0x3249f56fc Future.promise
80 Combine 0x3249f51ec Future.init
81 SampleApp 0x201294f40 ReconcileAndLocalSaveOperation.queryPendingMutations
82 SampleApp 0x2012a6d84 MutationEvent.pendingMutationEvents (MutationEvent+Query.swift:95)
83 libswift_Concurrency.dylib 0x328551c28 swift::runJobInEstablishedExecutorContext
Thread 15
0 libsystem_kernel.dylib 0x3a0b13730 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e55ad9ac _pthread_wqthread
Thread 16
0 libsystem_kernel.dylib 0x3a0b0bb7c __psynch_cvwait
1 libsystem_pthread.dylib 0x3e55acfd0 _pthread_cond_wait
2 SampleApp 0x201329438 aws_condition_variable_wait_for (condition_variable.c:102)
3 SampleApp 0x20131e564 aws_condition_variable_wait_for_pred (condition_variable.c:31)
4 SampleApp 0x201340f5c aws_host_resolver_thread (host_resolver.c:1082)
5 SampleApp 0x20132b4f0 thread_fn (thread.c:177)
6 libsystem_pthread.dylib 0x3e55ae4d0 _pthread_start
Thread 17
0 libsystem_kernel.dylib 0x3a0b13730 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e55ad9ac _pthread_wqthread
Thread 18
0 libsystem_kernel.dylib 0x3a0b13730 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e55ad9ac _pthread_wqthread
Thread 19
0 libsystem_pthread.dylib 0x3e55ad9fc start_wqthread
Thread 20
0 libsystem_kernel.dylib 0x3a0b0b1d8 mach_msg2_trap
1 libsystem_kernel.dylib 0x3a0b0af6c mach_msg2_internal
2 libsystem_kernel.dylib 0x3a0b0ae84 mach_msg_overwrite
3 libsystem_kernel.dylib 0x3a0b0acc4 mach_msg
4 CoreFoundation 0x312129d08 __CFRunLoopServiceMachPort
5 CoreFoundation 0x312127c00 __CFRunLoopRun
6 CoreFoundation 0x312127664 CFRunLoopRunSpecific
7 Foundation 0x310060548 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
8 Foundation 0x31005e940 -[NSRunLoop(NSRunLoop) run]
9 SwiftUI 0x31a2774c8 OUTLINED_FUNCTION_101
10 SwiftUI 0x31a2775fc OUTLINED_FUNCTION_101
11 Foundation 0x3100e5180 __NSThread__start__
12 libsystem_pthread.dylib 0x3e55ae4d0 _pthread_start
Thread 21
0 libsystem_kernel.dylib 0x3a0b13730 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e55ad9ac _pthread_wqthread
Thread 22
0 libsystem_kernel.dylib 0x3a0b13730 __workq_kernreturn
1 libsystem_pthread.dylib 0x3e55ad9ac _pthread_wqthread
Thread 13 crashed with ARM Thread State (64-bit):
x0: 0x0000000000000000 x1: 0x0000000000000005 x2: 0x0000000000000000 x3: 0x0000000000800000
x4: 0x0000000002000001 x5: 0x0000000000000003 x6: 0x0000000000000000 x7: 0x0000000000000000
x8: 0x00000001dc0a8000 x9: 0x0000000183d79a5f x10: 0xffffffffffffc000 x11: 0x0000000000000000
x12: 0x0000000000000001 x13: 0x00000000ffffffff x14: 0x0000000000000001 x15: 0x0000000000000000
x16: 0xfffffffffffffff1 x17: 0x0000000000000238 x18: 0x0000000000000000 x19: 0x0110080012525e61
x20: 0x0000000000001ce0 x21: 0x0000000000000007 x22: 0x0110080012525e61 x23: 0x0000000000000020
x24: 0x000000016fe8abc8 x25: 0x0000000000000007 x26: 0x0000000000001ce0 x27: 0x00000001029404f0
x28: 0x0000000000000040 fp: 0x000000016fe8a7e0 lr: 0x0000000183c00170 sp: 0x000000016fe8a7b0
pc: 0x0000000183cbff64 cpsr: 0x0000000040000000
EOF
from amplify-swift.
lawmicha
commented on June 12, 2024
Hi @fzy-spyro, it appears to be happening during DataStore's reconciliation process. Do you have more details such as
- Your GraphQL schema used for DataStore
- The number of models for each model type you are expecting to be syncing down and if you have a sync expression set up
- Any custom DataStore configuration, especially the sync expressions, syncMaxRecords, syncPageSize, syncInterval
- Do you know which devices are running out of memory? and percentage of overall customers impacted?
- Are you able to determine that among the full crash reports, they're have stacks traces including ReconcileAndLocalSaveOperation ? Reconciliation happens at the initial start-up of the sync process and as new data comes in, so it could be that the device ran out of memory and it just happened to be performing a reconciliation and it could be unrelated to DataStore.
from amplify-swift.
fzy-spyro
commented on June 12, 2024
Hey @lawmicha
Please find responses below:
Your GraphQL schema used for DataStore
yes. Given this is proprietary project I have renamed table names and properties names. Plesee see attached schema file.
schema.txt
It's rather "simple" schema. Its collection of tables where we mostly store pairs of timestaps and values. We do not have any relations set up etc
The number of models for each model type you are expecting to be syncing down and if you have a sync expression set up
Some tables hold only 1 data row per user in dynamo but for some tables they can hold more than 10k rows (without real max number). Data for those tables are coming from external IoT sensores hence the big amout of rows.
Re. sync expressions - yes, we have started using them recently (some use cases are described in related ticket - #3383) and observed this crash.
Any custom DataStore configuration, especially the sync expressions, syncMaxRecords, syncPageSize, syncInterval
Here's the plugin initialization code:
try Amplify.add(plugin: AWSDataStorePlugin(
modelRegistration: DataStoreModels(),
configuration: .custom(errorHandler: onError, syncMaxRecords: UInt.max, syncExpressions: syncExpressions)
))
// onError -> this is logger only, no additional logic:
Sync expressions are configured depending of fact if we expect lot of data to be stored in particular table - in such case we try to limit amout of data that is synced at first to only sync last x days of data and then we re-evaluate experssions at runtme to fetch remaining data:
// for "data-heavy" tables we have following expressions set up
DataStoreSyncExpression.syncExpression(Table2.schema, where: {
if let dateLimit = dateLimit {
Table2.keys.user_id.eq(userId).and(Table2.keys.data_timestamp.gt(dateLimit.temporalDateTime))
} else {
Table2.keys.user_id.eq(userId)
}
}),
other tables simply use :
DataStoreSyncExpression.syncExpression(Table7.schema, where: {
Table7.keys.user_id.eq(userId)
}),
Do you know which devices are running out of memory? and percentage of overall customers impacted?
We have quite low user base for now (~10-15) and following crash happend for ~20%. looking at device breakdown it happened mostly on iPhone XR, iPhone SE running iOS 17.
Are you able to determine that among the full crash reports, they're have stacks traces including ReconcileAndLocalSaveOperation ? Reconciliation happens at the initial start-up of the sync process and as new data comes in, so it could be that the device ran out of memory and it just happened to be performing a reconciliation and it could be unrelated to DataStore.
unfortuantely I do not have such logs to confirm it. If anything changes I'll update you with logs.
from amplify-swift.
lawmicha
commented on June 12, 2024
Thanks for the info @fzy-spyro, are you able to capture any data related to the memory usage? With your dataset, are you able to check the memory usage during
- DataStore.clear(), DataStore.start(), re-evaluate sync expression, stop, start. To perform a full sync of your data set.
- Repeat 1 without relaunching the app. This is to understand if memory usage is sustainable and freed properly.
Are you able to implement any low on memory notifications and correlate that with the crash instances?
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lawmicha
commented on June 12, 2024
I tried to create a repro using your schema, and populating about 10k items in Table1, Table2, Table3, and 1000 in the rest (except for I think one or two tables that were using the userId as primary key). I was testing the memory usage around syncing down 35k+ items and it appears to operate fine. It spikes up to around 100MB in memory when the data is pulled into DataStore, and reconciles them into the local database. Each reconciliation operation operates on about 1k items at a time, which takes about 2-3s, so syncing everything (my dataset of 35k items) took approx 2mins.
Could it be possible that the app has been running for some time, and another process has a memory leak leading to up to this crash?
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fzy-spyro
commented on June 12, 2024
Yes, it is possible that app has been running for some time either in foreground or background.
We were not yet able to reproduce this issue on our test devices unfortunately. As crash in the description happened on customer devices it will be quite hard for us to get the actual devices to run memory profiler.
I will add more logging and low-mem events to see if this happens around start/stop calls etc and come back to you once we have more insights.
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lawmicha
commented on June 12, 2024
@fzy-spyro, were you able to gather any more information regarding low-mem events?
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