iOS crash on launch (1.25.0-8.2.pre) - Crashed: io.flutter.1.io SIGABRT ABORT 0x00000001cbed8414 __pthread_kill

[acoutts]

I received this crash report from a user through Crashlytics. They reported the app immediately exited upon opening. It appears flutter was killed:

Crashed: io.flutter.1.io
0  libsystem_kernel.dylib         0x1cbed8414 __pthread_kill + 8
1  libsystem_pthread.dylib        0x1e9932b40 pthread_kill + 272
2  libsystem_c.dylib              0x1a74feb74 abort + 104
3  Flutter                        0x101f9e6dc (Missing)
4  Flutter                        0x1020aeea4 (Missing)
5  Flutter                        0x101e43dbc (Missing)
6  Flutter                        0x101e42558 (Missing)
7  Flutter                        0x101e42720 (Missing)
8  Flutter                        0x101ed0ac4 (Missing)
9  Flutter                        0x101ece994 (Missing)
10 Flutter                        0x101eceb2c (Missing)
11 Flutter                        0x101b54804 (Missing)
12 Flutter                        0x101b5451c (Missing)
13 Flutter                        0x101b564cc (Missing)
14 CoreFoundation                 0x19e0ddfa0 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 32
15 CoreFoundation                 0x19e0ddba0 __CFRunLoopDoTimer + 1064
16 CoreFoundation                 0x19e0dcffc __CFRunLoopDoTimers + 328
17 CoreFoundation                 0x19e0d6ee4 __CFRunLoopRun + 1936
18 CoreFoundation                 0x19e0d621c CFRunLoopRunSpecific + 600
19 Flutter                        0x101b563a8 (Missing)
20 Flutter                        0x101b55d30 (Missing)
21 libsystem_pthread.dylib        0x1e9931b40 _pthread_start + 320
22 libsystem_pthread.dylib        0x1e993a768 thread_start + 8

There are many other threads captured as well, but i'm not sure if those will be helpful. I'm happy to provide any other thread dumps as requested from the crash report.

Steps to Reproduce

Seems to be a random crash as I cannot reproduce it, but it happened to one user already.

Expected results:
Flutter should not crash.

Actual results:
App crashed immediately after opening.

Logs

[✓] Flutter (Channel beta, 1.25.0-8.2.pre, on macOS 11.1 20C69 darwin-arm, locale en-US)
    • Flutter version 1.25.0-8.2.pre at /Users/andrewcoutts/Projects/flutter
    • Framework revision b0a2299859 (9 days ago), 2021-01-05 12:34:13 -0800
    • Engine revision 92ae191c17
    • Dart version 2.12.0 (build 2.12.0-133.2.beta)

[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    • Android SDK at /Users/andrewcoutts/Library/Android/sdk
    • Platform android-30, build-tools 30.0.3
    • ANDROID_HOME = /Users/andrewcoutts/Library/Android/sdk
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6915495)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 12.3)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 12.3, Build version 12C33
    • CocoaPods version 1.10.1

[✓] Android Studio (version 4.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6915495)

[!] Connected device
    ! Error: xff0c-12p is not connected. Xcode will continue when xff0c-12p is connected. (code -13)

! Doctor found issues in 1 category.

[mraleph]

@flutter-symbolizer-bot force ios #73936 (comment) arm64

[flutter-symbolizer-bot]

crash from #73936 (comment) symbolized using symbols for 92ae191c17a53144bf4d62f3863c110be08e3fd3 ios-arm64-release

#00 00000001cbed8414 libsystem_kernel.dylib __pthread_kill + 8
#01 00000001e9932b40 libsystem_pthread.dylib pthread_kill + 272
#02 00000001a74feb74 libsystem_c.dylib abort + 104
#03 0000000101f9e6dc Flutter (Missing)
#04 00000001020aeea4 Flutter (Missing)
#05 0000000101e43dbc Flutter (Missing)
#06 0000000101e42558 Flutter (Missing)
#07 0000000101e42720 Flutter (Missing)
#08 0000000101ed0ac4 Flutter (Missing)
#09 0000000101ece994 Flutter (Missing)
#10 0000000101eceb2c Flutter (Missing)
#11 0000000101b54804 Flutter (Missing)
#12 0000000101b5451c Flutter (Missing)
#13 0000000101b564cc Flutter (Missing)
#14 000000019e0ddfa0 CoreFoundation __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 32
#15 000000019e0ddba0 CoreFoundation __CFRunLoopDoTimer + 1064
#16 000000019e0dcffc CoreFoundation __CFRunLoopDoTimers + 328
#17 000000019e0d6ee4 CoreFoundation __CFRunLoopRun + 1936
#18 000000019e0d621c CoreFoundation CFRunLoopRunSpecific + 600
#19 0000000101b563a8 Flutter (Missing)
#20 0000000101b55d30 Flutter (Missing)
#21 00000001e9931b40 libsystem_pthread.dylib _pthread_start + 320
#22 00000001e993a768 libsystem_pthread.dylib thread_start + 8

[TahaTesser]

Hi @acoutts
Can you please provide your pubspec.yaml and the list of affected devices.
Thank you

[acoutts]

@TahaTesser snippet below:

The crash report came from an iPhone 11 Pro Max running iOS 14.3.0 (18C66). At the time of the crash it reported RAM free: 100.3 MB.

environment:
  sdk: ">=2.7.0 <3.0.0"
  flutter: ^1.24.0-10.2.pre

dependencies:
  flutter:
    sdk: flutter

  flutter_driver:
    sdk: flutter

  flutter_localizations:
    sdk: flutter

  flutter_test:
    sdk: flutter

  app_settings: ^4.0.4
  btc_address_validate: ^0.1.1
  cached_network_image: ^2.3.3
  clevertap_plugin: ^1.2.0
  connectivity: ^3.0.0-nullsafety.1
  confetti: ^0.5.4+1
  corsac_jwt: ^0.2.2
  crypto_keys: ^0.1.3
  data_connection_checker: ^0.3.4
  decimal: ^0.3.5
  device_info: ^0.4.2+9
  dio: ^3.0.10
  easy_localization: ^2.3.3
  email_validator: ^1.0.6
  firebase_analytics: ^6.0.2
  firebase_auth: ^0.18.4+1
  firebase_core: ^0.5.0+1
  firebase_crashlytics: ^0.2.3
  firebase_messaging: ^7.0.3
  firebase_ml_vision: ^0.9.7
  firebase_remote_config: ^0.4.0+2
  fixnum: ^0.10.11
  flare_flutter: ^2.0.6
  flutter_cache_manager: ^2.0.0
  flutter_libphonenumber: ^1.0.1-nullsafety
  flutter_local_notifications: ^3.0.2
  flutter_mobx: ^1.1.0+2
  devicelocale: ^0.3.3
  flutter_secure_storage: ^3.3.5
  flutter_showtime: ^0.1.1
  flutter_slidable: ^0.5.7
  flutter_string_encryption: ^0.3.1
  flutter_svg: ^0.19.1
  flutter_xlider: ^3.4.0
  geocoder: ^0.2.1
  giphy_client: ^0.2.0
  grpc: ^2.7.0
  http: ^0.12.2
  image_cropper: ^1.3.1
  image_picker: ^0.6.7+12
  image: ^2.1.18
  intercom_flutter: ^2.3.2
  intl: ^0.16.1
  jose: ^0.2.1+1
  json_serializable: ^3.5.1
  json_serializable_mobx: ^0.3.0
  local_auth: ^0.6.3+3
  logger: ^0.9.4
  lottie: ^0.6.0
  mobx: ^1.2.1+3
  mockito: ^4.1.3
  notification_permissions: ^0.4.8
  oktoast: ^2.3.2
  package_info: ^0.4.3
  path_provider: ^1.6.21
  path: ^1.7.0
  permission_handler: ^5.0.1+1
  pub_semver: ^1.4.4
  open_mail_app: ^0.0.3
  provider: ^4.3.2+2
  qr: ^1.3.0
  rate_my_app: ^0.7.2
  retry: ^3.0.1
  share: 0.6.5+3
  shared_preferences: ^0.5.12+2
  sprung: ^2.0.0+12
  test: ^1.15.4
  timeago: ^2.0.27
  url_launcher: ^5.7.5
  uuid: ^2.2.2

dev_dependencies:
  build_runner: ^1.10.2
  dartdoc: ^0.34.0
  mobx_codegen: ^1.0.3

dependency_overrides:
  intl: ^0.17.0-nullsafety.2
  analyzer: ^0.41.1

[sullenel]

Also getting this crash from almost all devices (iphone 6 and newer). iOS version varies from 12 to 14, but all the affected devices were low on memory (around 100 MB).

[TahaTesser]

Hi @acoutts @sullenel
This could be related to #69102
You mentioned you've other thread, can you please find a similar thread as in the above issue?
Thank you

[acoutts]

@TahaTesser the thread name i've posted here is the same as in that linked issue (io.flutter.1.io).

Here are some of the others:

io.flutter.1.ui
0  libsystem_malloc.dylib         0x1adeb3db0 nanov2_find_block_and_allocate + 760
1  libsystem_malloc.dylib         0x1adeb2bf4 nanov2_allocate + 292
2  libsystem_malloc.dylib         0x1adeb2a6c nanov2_malloc + 64
3  libsystem_malloc.dylib         0x1adeb7518 _malloc_zone_malloc + 152
4  Flutter                        0x101f370fc (Missing)
5  Flutter                        0x101f43e70 (Missing)
6  Flutter                        0x101f47a60 (Missing)
7  Flutter                        0x101f7d040 (Missing)
8  Flutter                        0x101f68ae8 (Missing)
9  Flutter                        0x101f68390 (Missing)
10 Flutter                        0x101f78348 (Missing)
11 Flutter                        0x101ef782c (Missing)
12 Flutter                        0x101ef7958 (Missing)
13 Flutter                        0x101ff85d4 (Missing)
14 App                            0x1088072ec Precompiled_Stub_CallAutoScopeNative + 80
15 App                            0x108885330 Precompiled__SecureFilterImpl_15069316__handshake_15069316_2127 + 64
16 App                            0x1088858e0 Precompiled__SecureFilterImpl_15069316_handshake_2136 + 352
17 App                            0x109086a38 Precompiled__RawSecureSocket_15069316__secureHandshake_15069316__async_op_29106 + 264
18 App                            0x108885df4 Precompiled__RawSecureSocket_15069316__secureHandshake_15069316_2142 + 324
19 App                            0x109086b04 Precompiled__RawSecureSocket_15069316__secureHandshake_15069316__async_op_29106 + 468
20 App                            0x10881f068 Precompiled_____rootRunUnary_4048458_464 + 112
21 App                            0x10881efe0 Precompiled_____rootRunUnary_4048458__rootRunUnary_4048458_463 + 544
22 App                            0x108e34964 Precompiled__CustomZone_4048458_runUnary_23492 + 184
23 App                            0x108820bac Precompiled__FutureListener_4048458_handleValue_494 + 208
24 App                            0x1090eaf98 Precompiled__Future_4048458__propagateToListeners_4048458_handleValueCallback_30181 + 52
25 App                            0x10881e218 Precompiled__Future_4048458__propagateToListeners_4048458_453 + 1136
26 App                            0x10881dd8c Precompiled__Future_4048458__completeWithValue_4048458_452 + 124
27 App                            0x1090eb434 Precompiled__Future_4048458__asyncCompleteWithValue_4048458__anonymous_closure__30183 + 44
28 App                            0x10881ece0 Precompiled_____rootRun_4048458_460 + 216
29 App                            0x10881ebf0 Precompiled_____rootRun_4048458__rootRun_4048458_459 + 476
30 App                            0x108e3675c Precompiled__CustomZone_4048458_run_23527 + 172
31 App                            0x108e37450 Precompiled__CustomZone_4048458_runGuarded_23538 + 52
32 App                            0x1090a4f0c Precompiled__CustomZone_4048458_bindCallbackGuarded__anonymous_closure__29454 + 44
33 App                            0x108824348 Precompiled_____microtaskLoop_4048458_573 + 120
34 App                            0x108825490 Precompiled_____startMicrotaskLoop_4048458_590 + 40
35 App                            0x108825564 Precompiled_____startMicrotaskLoop_4048458__startMicrotaskLoop_4048458_591 + 48
36 App                            0x1088070e8 Precompiled_Stub_InvokeDartCode + 268
37 Flutter                        0x101fe426c (Missing)
38 Flutter                        0x101fe4f08 (Missing)
39 Flutter                        0x1020beb4c (Missing)
40 Flutter                        0x101e41308 (Missing)
41 Flutter                        0x101b54720 (Missing)
42 Flutter                        0x101b564cc (Missing)
43 CoreFoundation                 0x19e0ddfa0 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 32
44 CoreFoundation                 0x19e0ddba0 __CFRunLoopDoTimer + 1064
45 CoreFoundation                 0x19e0dcffc __CFRunLoopDoTimers + 328
46 CoreFoundation                 0x19e0d6ee4 __CFRunLoopRun + 1936
47 CoreFoundation                 0x19e0d621c CFRunLoopRunSpecific + 600
48 Flutter                        0x101b563a8 (Missing)
49 Flutter                        0x101b55d30 (Missing)
50 libsystem_pthread.dylib        0x1e9931b40 _pthread_start + 320
51 libsystem_pthread.dylib        0x1e993a768 thread_start + 8

io.flutter.1.raster
0  libsystem_kernel.dylib         0x1cbeb42d0 mach_msg_trap + 8
1  libsystem_kernel.dylib         0x1cbeb3660 mach_msg + 76
2  libdispatch.dylib              0x19dd6e888 _dispatch_mach_send_and_wait_for_reply + 528
3  libdispatch.dylib              0x19dd6ec24 dispatch_mach_send_with_result_and_wait_for_reply + 56
4  libxpc.dylib                   0x1e9958e68 xpc_connection_send_message_with_reply_sync + 240
5  Metal                          0x1b487aecc XPCCompilerConnection::BuildRequestInternal(MTLCompilerRequest*, char const*, NSObject<OS_dispatch_data>*, int, bool, void (unsigned int, void const*, unsigned long, char const*) block_pointer) + 944
6  Metal                          0x1b487bb38 invocation function for block in XPCCompilerConnection::BuildRequest(MTLCompilerRequest*, char const*, NSObject<OS_dispatch_data>*, int, bool, void (unsigned int, void const*, unsigned long, char const*) block_pointer) + 64
7  libdispatch.dylib              0x19dd55db0 _dispatch_client_callout + 20
8  libdispatch.dylib              0x19dd64428 _dispatch_lane_barrier_sync_invoke_and_complete + 60
9  Metal                          0x1b487ba88 XPCCompilerConnection::BuildRequest(MTLCompilerRequest*, char const*, NSObject<OS_dispatch_data>*, int, bool, void (unsigned int, void const*, unsigned long, char const*) block_pointer) + 136
10 Metal                          0x1b487c8e4 MTLCompilerConnectionManagerPrivate::buildRequest(unsigned int, MTLCompilerRequest*, bool, void (MTLCompilerError, NSObject<OS_dispatch_data>*, char const*) block_pointer) + 372
11 Metal                          0x1b48a5488 MTLLibraryBuilder::initLibraryContainerWithRequestData(MTLLibraryContainer*, void*, unsigned long, MTLBuildRequestType, MTLCompileOptions const*, MTLCompilerFunctionRequest const*, unsigned int, bool, void () block_pointer) + 1720
12 Metal                          0x1b48a5e9c MTLLibraryBuilder::newLibraryWithRequestData(void*, unsigned long, MTLBuildRequestType, MTLCompileOptions const*, MTLCompilerFunctionRequest const*, unsigned int, bool, void (id<MTLLibrary>, NSError*) block_pointer) + 248
13 Metal                          0x1b48a761c MTLLibraryBuilder::newLibraryWithSource(id<MTLDevice>, NSString*, MTLCompileOptions*, bool, void (id<MTLLibrary>, NSError*) block_pointer) + 4716
14 Metal                          0x1b487391c -[_MTLDevice newLibraryWithSource:options:error:] + 228
15 AGXMetalA13                    0x1eaf8a5d0 (Missing)
16 Flutter                        0x101dd8668 (Missing)
17 Flutter                        0x101dd3d70 (Missing)
18 Flutter                        0x101dd237c (Missing)
19 Flutter                        0x101dd53d8 (Missing)
20 Flutter                        0x101dcf728 (Missing)
21 Flutter                        0x101ce0a58 (Missing)
22 Flutter                        0x101ce0238 (Missing)
23 Flutter                        0x101d3dd58 (Missing)
24 Flutter                        0x101ce18c8 (Missing)
25 Flutter                        0x101cd5f04 (Missing)
26 Flutter                        0x101cd655c (Missing)
27 Flutter                        0x101cfeb54 (Missing)
28 Flutter                        0x101d77c60 (Missing)
29 Flutter                        0x101f9e474 (Missing)
30 Flutter                        0x101ba5ed0 (Missing)
31 Flutter                        0x101e26a2c (Missing)
32 Flutter                        0x101e275c0 (Missing)
33 Flutter                        0x101e26cd0 (Missing)
34 Flutter                        0x101e2d9c0 (Missing)
35 Flutter                        0x101b54558 (Missing)
36 Flutter                        0x101b564cc (Missing)
37 CoreFoundation                 0x19e0ddfa0 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 32
38 CoreFoundation                 0x19e0ddba0 __CFRunLoopDoTimer + 1064
39 CoreFoundation                 0x19e0dcffc __CFRunLoopDoTimers + 328
40 CoreFoundation                 0x19e0d6ee4 __CFRunLoopRun + 1936
41 CoreFoundation                 0x19e0d621c CFRunLoopRunSpecific + 600
42 Flutter                        0x101b563a8 (Missing)
43 Flutter                        0x101b55d30 (Missing)
44 libsystem_pthread.dylib        0x1e9931b40 _pthread_start + 320
45 libsystem_pthread.dylib        0x1e993a768 thread_start + 8

There's others from the OS but i'm not sure what is going to be useful for debugging.

[TahaTesser]

Hi @acoutts
I am not sure but this could be a duplicate, do you have any thread with IOGPUMetalCommandBuffer ?