Firebase-ios-sdk: Protobuf crash on 32-bit devices in PHTFlatFilePhenotype and Firestore (leveldb)

[fangyuxi]

I'm using firebase 6.8.1
When new App is released at Appstore, I found more crashs appear in firebase dashboard. I do not use ProtoBuf directly
I updated all Pods, before upload package to Appstore. All componets are newest.

Crashed: PHTFlatFilePhenotype
0  Protobuf                       0x160efd8 GPBCodedInputStreamReadDouble + 88 (GPBUtilities_PackagePrivate.h:88)
1  Protobuf                       0x160efd1 GPBCodedInputStreamReadDouble + 103 (GPBCodedInputStream.m:103)
2  Protobuf                       0x1639fd1 -[GPBMessage mergeFromCodedInputStream:extensionRegistry:] + 2143 (GPBMessage.m:2143)
3  Protobuf                       0x160f9c5 -[GPBCodedInputStream readMessage:extensionRegistry:] + 296 (GPBCodedInputStream.m:296)
4  Protobuf                       0x163a47f MergeRepeatedNotPackedFieldFromCodedInputStream + 2294 (GPBMessage.m:2294)
5  Protobuf                       0x1639f6b -[GPBMessage mergeFromCodedInputStream:extensionRegistry:] + 2393 (GPBMessage.m:2393)
6  Protobuf                       0x160f9c5 -[GPBCodedInputStream readMessage:extensionRegistry:] + 296 (GPBCodedInputStream.m:296)
7  Protobuf                       0x163a47f MergeRepeatedNotPackedFieldFromCodedInputStream + 2294 (GPBMessage.m:2294)
8  Protobuf                       0x1639f6b -[GPBMessage mergeFromCodedInputStream:extensionRegistry:] + 2393 (GPBMessage.m:2393)
9  Protobuf                       0x160f9c5 -[GPBCodedInputStream readMessage:extensionRegistry:] + 296 (GPBCodedInputStream.m:296)
10 Protobuf                       0x163a47f MergeRepeatedNotPackedFieldFromCodedInputStream + 2294 (GPBMessage.m:2294)
11 Protobuf                       0x1639f6b -[GPBMessage mergeFromCodedInputStream:extensionRegistry:] + 2393 (GPBMessage.m:2393)
12 Protobuf                       0x1639647 -[GPBMessage mergeFromData:extensionRegistry:] + 1928 (GPBMessage.m:1928)
13 Protobuf                       0x1636d55 -[GPBMessage initWithData:extensionRegistry:error:] + 868 (GPBMessage.m:868)
14 Protobuf                       0x163971b +[GPBMessage parseFromData:extensionRegistry:error:] + 1957 (GPBMessage.m:1957)
15 Protobuf                       0x16396e5 +[GPBMessage parseFromData:error:] + 1951 (GPBMessage.m:1951)
16 SparkMusic                     0x526773 __69-[PHTHeterodyneSyncer syncAccount:syncedScopes:fetchReason:callback:]_block_invoke_2 + 4831091
17 libdispatch.dylib              0x1b461797 _dispatch_call_block_and_release + 10
18 libdispatch.dylib              0x1b46e59d _dispatch_queue_serial_drain + 854
19 libdispatch.dylib              0x1b464b71 _dispatch_queue_invoke + 886
20 libdispatch.dylib              0x1b46ea1f _dispatch_queue_override_invoke + 282
21 libdispatch.dylib              0x1b4701b5 _dispatch_root_queue_drain + 326
22 libdispatch.dylib              0x1b47000f _dispatch_worker_thread3 + 106
23 libsystem_pthread.dylib        0x1b61687d _pthread_wqthread + 1040
24 libsystem_pthread.dylib        0x1b61645c start_wqthread + 8

This is the details of the App that has Crash.

-Xcode Version 10.2.1 
-Base SDK iOS 12.2
-Crash iOS Version iOS9, iOS10 only.

The pod install info.

Installing AFNetworking (3.2.1)
Installing BoringSSL-GRPC (0.0.3)
Installing CYLTabBarController (1.28.3)
Installing Crashlytics (3.14.0)
Installing DeviceUtil (5.1.0)
Installing FBAudienceNetwork (5.5.0)
Installing FBSDKCoreKit (5.5.0)
Installing FBSDKLoginKit (5.5.0)
Installing Fabric (1.10.2)
Installing Firebase (6.8.1)
Installing FirebaseABTesting (3.1.1)
Installing FirebaseAnalytics (6.1.1)
Installing FirebaseAnalyticsInterop (1.4.0)
Installing FirebaseAuth (6.2.3)
Installing FirebaseAuthInterop (1.0.0)
Installing FirebaseCore (6.2.3)
Installing FirebaseCoreDiagnostics (1.0.1)
Installing FirebaseCoreDiagnosticsInterop (1.0.0)
Installing FirebaseDatabase (6.1.0)
Installing FirebaseFirestore (1.5.0)
Installing FirebaseInstanceID (4.2.5)
Installing FirebaseMessaging (4.1.4)
Installing FirebasePerformance (3.1.4)
Installing FirebaseRemoteConfig (4.4.0)
Installing FirebaseStorage (3.4.1)
Installing FirebaseUI (8.0.4)
Installing GTMSessionFetcher (1.2.2)
Installing Google-Mobile-Ads-SDK (7.49.0)
Installing GoogleAppMeasurement (6.1.1)
Installing GoogleDataTransport (1.2.0)
Installing GoogleDataTransportCCTSupport (1.0.3)
Installing GoogleMobileAdsMediationFacebook (5.5.0.0)
Installing GoogleSignIn (4.4.0)
Installing GoogleToolboxForMac (2.2.1)
Installing GoogleUtilities (6.2.5)
Installing IQKeyboardManager (6.4.2)
Installing KVOController (1.2.0)
Installing LEEAlert (1.2.8)
Installing MJRefresh (3.2.0)
Installing MOBFoundation (3.2.5)
Installing Masonry (1.1.0)
Installing NMEasyTipView (1.2)
Installing Protobuf (3.9.0)
Installing RTRootNavigationController (0.7.1)
Installing Reachability (3.2)
Installing ReactiveCocoa (2.5)
Installing SDWebImage (5.1.1)
Installing SJBaseVideoPlayer (2.7.1)
Installing SJUIKit (0.0.0.35)
Installing SVProgressHUD (2.2.5)
Installing TOWebViewController (2.2.8)
Installing TTGTagCollectionView (1.11.1)
Installing YYCache (1.0.4)
Installing YYCategories (1.0.4)
Installing YYModel (1.0.4)
Installing gRPC-C++ (0.0.9)
Installing gRPC-Core (1.21.0)
Installing leveldb-library (1.22)
Installing lottie-ios (2.5.3)
Installing mob_sharesdk (4.3.2)
Installing nanopb (0.3.901)
Installing youtube-ios-player-helper (0.1.6)

[google-oss-bot]

I found a few problems with this issue:

• I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.
• This issue does not seem to follow the issue template. Make sure you provide all the required information.

[paulb777]

Please share the Podfile and Podfile.lock. Also, any other patterns in where the crashes occur like iOS versions, etc.

[neilmorton]

I am seeing the same crash on 2 apps.

@paulb777 The crashes I am seeing appear to be from iOS 9 and iOS 10 only on both apps.
Also, these builds were compiled with the Xcode 11 GM Seed.

@fangyuxi what version of Xcode did you compile the build with? (Just wondering if other users haven’t spotted this yet, or if it is an issue compiling against the Xcode 11 GM seed?)

[fangyuxi]

@neilmorton The Xcode version is 10.3. Not Xcode 11 GM.
Now, this problem has caused a lot of Crash.
(Just wondering if other users haven’t spotted this yet)

@paulb777 The specific compilation environment and podfile or podfile lock will be available to you tomorrow.

[neilmorton]

@fangyuxi That’s interesting about the Xcode version.
Can you see what versions of iOS are affected for you? Are you seeing it limited to iOS 9 and 10?

[fangyuxi]

@neilmorton Yes iOS 9 and iOS 10 Only

[fangyuxi]

@neilmorton Now I am concerned about whether this Crash will cause iOS 9 and iOS 10 users to not use the App properly(I don't have an iPhone for iOS9 or iOS 10 to test.). If the user only occasionally encounters this Crash, then we still have time to fix it.

[neilmorton]

@fangyuxi ok. I was limiting Firebase to 6.5.0 before my latest build due to a previous issue. I thought that was fixed, but seems there is now a new issue.
I am going to limit the pod file back to 6.5.0 and resubmit whilst this gets figured out.

[neilmorton]

@fangyuxi Looking at the data in Fabric I am sufficiently concerned by the number of iOS 9 / 10 users affected that I am reverting to the Firebase build that I had limited to due to the past issues.

Podfile update:
pod 'Firebase/Core', '~> 6.5.0'

[fangyuxi]

@neilmorton Please check to see if these versions are stable? Thank you very much !

Installing AFNetworking (3.2.1)
Installing AppLovinSDK (6.8.0)
Installing BoringSSL-GRPC (0.0.3)
Installing CYLTabBarController (1.28.3)
Installing Crashlytics (3.14.0)
Installing DeviceUtil (5.1.0)
Installing FBAudienceNetwork (5.5.0)
Installing FBSDKCoreKit (5.6.0)
Installing FBSDKLoginKit (5.6.0)
Installing Fabric (1.10.2)
Installing Firebase (6.5.0)
Installing FirebaseABTesting (3.1.1)
Installing FirebaseAnalytics (6.0.4)
Installing FirebaseAnalyticsInterop (1.4.0)
Installing FirebaseAuth (6.2.1)
Installing FirebaseAuthInterop (1.0.0)
Installing FirebaseCore (6.1.0)
Installing FirebaseDatabase (6.0.0)
Installing FirebaseFirestore (1.4.2)
Installing FirebaseInstanceID (4.2.5)
Installing FirebaseMessaging (4.1.1)
Installing FirebasePerformance (3.1.1)
Installing FirebaseRemoteConfig (4.2.1)
Installing FirebaseStorage (3.4.1)
Installing FirebaseUI (8.0.4)
Installing Flurry-iOS-SDK (9.3.1)
Installing GTMSessionFetcher (1.2.2)
Installing Google-Mobile-Ads-SDK (7.49.0)
Installing GoogleAppMeasurement (6.0.4)
Installing GoogleMobileAdsMediationAppLovin (6.8.0.0)
Installing GoogleMobileAdsMediationFacebook (5.5.0.0)
Installing GoogleMobileAdsMediationInMobi (7.3.2.0)
Installing GoogleMobileAdsMediationMoPub (5.7.1.0)
Installing GoogleSignIn (4.4.0)
Installing GoogleToolboxForMac (2.2.1)
Installing GoogleUtilities (6.2.5)
Installing IQKeyboardManager (6.4.2)
Installing InMobiSDK (7.3.2)
Installing KVOController (1.2.0)
Installing LEEAlert (1.2.8)
Installing MJRefresh (3.2.0)
Installing MOBFoundation (3.2.5)
Installing Masonry (1.1.0)
Installing NMEasyTipView (1.2)
Installing Protobuf (3.9.0)
Installing RTRootNavigationController (0.6.7)
Installing Reachability (3.2)
Installing ReactiveCocoa (2.5)
Installing SDWebImage (5.1.1)
Installing SJBaseVideoPlayer (2.7.1)
Installing SJUIKit (0.0.0.35)
Installing SVProgressHUD (2.2.5)
Installing TOWebViewController (2.2.8)
Installing TTGTagCollectionView (1.11.1)
Installing YYCache (1.0.4)
Installing YYCategories (1.0.4)
Installing YYModel (1.0.4)
Installing gRPC-C++ (0.0.9)
Installing gRPC-Core (1.21.0)
Installing leveldb-library (1.22)
Installing lottie-ios (2.5.3)
Installing mob_sharesdk (4.3.2)
Installing mopub-ios-sdk (5.7.1)
Installing nanopb (0.3.901)

[neilmorton]

@fangyuxi
I am not sure what you want me to check, but what I can say is that the current config (with the issue) is:

Installing Firebase 6.8.1 (was 6.5.0)
Installing FirebaseABTesting 3.1.1 (was 3.1.0)
Installing FirebaseAnalytics 6.1.1 (was 6.0.4)
Using FirebaseAnalyticsInterop (1.4.0)
Installing FirebaseCore 6.2.3 (was 6.1.0)
Installing FirebaseCoreDiagnostics (1.0.1)
Installing FirebaseCoreDiagnosticsInterop (1.0.0)
Installing FirebaseInstanceID 4.2.5 (was 4.2.3)
Installing FirebasePerformance 3.1.4 (was 3.1.1)
Installing FirebaseRemoteConfig 4.4.0 (was 4.2.1)
Using GTMSessionFetcher (1.2.2)
Installing GoogleAppMeasurement 6.1.1 (was 6.0.4)
Installing GoogleDataTransport (1.2.0)
Installing GoogleDataTransportCCTSupport (1.0.3)
Using GoogleToolboxForMac (2.2.1)
Using GoogleUtilities (6.2.5)
Using Protobuf (3.9.0)
Using nanopb (0.3.901)

I have now locked Firebase back to 6.5.0 (reverted to what I was running previously):

Installing Firebase 6.5.0 (was 6.8.1)
Using FirebaseABTesting (3.1.1)
Installing FirebaseAnalytics 6.0.4 (was 6.1.1)
Using FirebaseAnalyticsInterop (1.4.0)
Installing FirebaseCore 6.1.0 (was 6.2.3)
Using FirebaseInstanceID (4.2.5)
Installing FirebasePerformance 3.1.1 (was 3.1.4)
Installing FirebaseRemoteConfig 4.2.1 (was 4.4.0)
Using GTMSessionFetcher (1.2.2)
Installing GoogleAppMeasurement 6.0.4 (was 6.1.1)
Using GoogleToolboxForMac (2.2.1)
Using GoogleUtilities (6.2.5)
Using Protobuf (3.9.0)
Using nanopb (0.3.901)
Removing FirebaseCoreDiagnostics
Removing FirebaseCoreDiagnosticsInterop
Removing GoogleDataTransport
Removing GoogleDataTransportCCTSupport

I have done this as there wasn't an issue previously and I want the iOS 9 and iOS 10 users back up and running.

Looking at your information, it seems that you have Installing FirebaseCore (6.1.0) shown.

Have you added the pod 'Firebase/Core', '~> 6.5.0' to your Podfile instead of the default and run pod update to get to this config? If so, then looking at the associated versions, then this looks to match with mine.

I hope this helps.

[fangyuxi]

@neilmorton OK Thank you.

[paulb777]

I believe that the backtrace shown would only come from FirebasePerformance. Would you confirm if removing FirebasePerformance makes the crash stop occurring?

[fangyuxi]

@paulb777

It seems that this Crash only come from FirebasePerformance, but now I am ready to roll back the version to 6.7.0. Because there are too many users showing this Crash.I guess that after removing FirebasePerformance, the Crash should not appear, but updating the app version takes time, affects many users, so dare not try to remove FirebasePerformance.

Thank you.

Also, if this is configured(pod 'Firebase/Core', '~> 6.7.0'), will all the dependent Pods roll back to 6.7.0?

Installing Fabric (1.10.2)
Installing Firebase (6.7.0)
Installing FirebaseABTesting (3.1.1)
Installing FirebaseAnalytics (6.1.1)
Installing FirebaseAnalyticsInterop (1.4.0)
Installing FirebaseAuth (6.2.3)
Installing FirebaseAuthInterop (1.0.0)
Installing FirebaseCore (6.2.1)
Installing FirebaseCoreDiagnostics (1.0.1)
Installing FirebaseCoreDiagnosticsInterop (1.0.0)
Installing FirebaseDatabase (6.1.0)
Installing FirebaseFirestore (1.4.5)
Installing FirebaseInstanceID (4.2.5)
Installing FirebaseMessaging (4.1.4)
Installing FirebasePerformance (3.1.2)
Installing FirebaseRemoteConfig (4.3.0)
Installing FirebaseStorage (3.4.1)
Installing FirebaseUI (8.0.4)
Installing Flurry-iOS-SDK (9.3.1)
Installing GTMSessionFetcher (1.2.2)
Installing Google-Mobile-Ads-SDK (7.49.0)
Installing GoogleAppMeasurement (6.1.1)
Installing GoogleDataTransport (1.2.0)
Installing GoogleDataTransportCCTSupport (1.0.4)
Installing GoogleMobileAdsMediationAppLovin (6.8.0.0)
Installing GoogleMobileAdsMediationFacebook (5.5.0.0)
Installing GoogleMobileAdsMediationInMobi (7.3.2.0)
Installing GoogleMobileAdsMediationMoPub (5.7.1.0)
Installing GoogleSignIn (4.4.0)
Installing GoogleToolboxForMac (2.2.1)
Installing GoogleUtilities (6.2.5)

Thank you again.

[neilmorton]

@neilmorton OK Thank you.

You are welcome @fangyuxi

[neilmorton]

I believe that the backtrace shown would only come from FirebasePerformance. Would you confirm if removing FirebasePerformance makes the crash stop occurring?

@paulb777 Unfortunately I am in the same position as @fangyuxi. I had issues after moving up past 6.5.0 previously in that I was seeing a raft of GDTUploadCoordinator.m crashes. At that point there was a comment from yourself that suggested reverting to 6.5.0 https://github.com/firebase/firebase-ios-sdk/issues/3547#issuecomment-520151994.

I had just made the decision to lift that version hold with this latest release to now experience this new issue across 4 apps with the latest builds ready for iOS 13.

I don't really want to risk just removing FirebasePerformance in case there is still an issue.

Rather I have, as mentioned above, locked them all back to 6.5.0. In the meantime I shall consider the options!

[neilmorton]

Also, if this is configured(pod 'Firebase/Core', '~> 6.7.0'), will all the dependent Pods roll back to 6.7.0?

@fangyuxi If you run pod update after making the change in the Podfile, then it should manage the dependencies, yes.

[paulb777]

If you run pod install, versions of existing pods won't necessarily change.

if you run pod update, versions will update to the latest unless there are version specifications in the Podfile.

pod 'Firebase/Core', '~> 6.7.0' indicates to use the latest Firebase pod at version 6.7.*. The Firebase pod specifies that its dependencies can do patch updates.

Thus if you do a pod update with pod 'Firebase/Core', '~> 6.7.0' you will get `FirebasePerformance 3.1.4 even though 6.7.0 released with 3.1.3.

@fangyuxi It looks like you still have 3.1.2. Please confirm the issue is still occurring with 3.1.4.

[fangyuxi]

Hi @paulb777

I have obtained the details of this app build binary. Hope to help.

This is the details of the App that has Crash.

-Xcode Version 10.2.1 
-Base SDK iOS 12.2
-Crash iOS Version iOS9, iOS10 only.

The pod install info.

Installing AFNetworking (3.2.1)
Installing BoringSSL-GRPC (0.0.3)
Installing CYLTabBarController (1.28.3)
Installing Crashlytics (3.14.0)
Installing DeviceUtil (5.1.0)
Installing FBAudienceNetwork (5.5.0)
Installing FBSDKCoreKit (5.5.0)
Installing FBSDKLoginKit (5.5.0)
Installing Fabric (1.10.2)
Installing Firebase (6.8.1)
Installing FirebaseABTesting (3.1.1)
Installing FirebaseAnalytics (6.1.1)
Installing FirebaseAnalyticsInterop (1.4.0)
Installing FirebaseAuth (6.2.3)
Installing FirebaseAuthInterop (1.0.0)
Installing FirebaseCore (6.2.3)
Installing FirebaseCoreDiagnostics (1.0.1)
Installing FirebaseCoreDiagnosticsInterop (1.0.0)
Installing FirebaseDatabase (6.1.0)
Installing FirebaseFirestore (1.5.0)
Installing FirebaseInstanceID (4.2.5)
Installing FirebaseMessaging (4.1.4)
Installing FirebasePerformance (3.1.4)
Installing FirebaseRemoteConfig (4.4.0)
Installing FirebaseStorage (3.4.1)
Installing FirebaseUI (8.0.4)
Installing GTMSessionFetcher (1.2.2)
Installing Google-Mobile-Ads-SDK (7.49.0)
Installing GoogleAppMeasurement (6.1.1)
Installing GoogleDataTransport (1.2.0)
Installing GoogleDataTransportCCTSupport (1.0.3)
Installing GoogleMobileAdsMediationFacebook (5.5.0.0)
Installing GoogleSignIn (4.4.0)
Installing GoogleToolboxForMac (2.2.1)
Installing GoogleUtilities (6.2.5)
Installing IQKeyboardManager (6.4.2)
Installing KVOController (1.2.0)
Installing LEEAlert (1.2.8)
Installing MJRefresh (3.2.0)
Installing MOBFoundation (3.2.5)
Installing Masonry (1.1.0)
Installing NMEasyTipView (1.2)
Installing Protobuf (3.9.0)
Installing RTRootNavigationController (0.7.1)
Installing Reachability (3.2)
Installing ReactiveCocoa (2.5)
Installing SDWebImage (5.1.1)
Installing SJBaseVideoPlayer (2.7.1)
Installing SJUIKit (0.0.0.35)
Installing SVProgressHUD (2.2.5)
Installing TOWebViewController (2.2.8)
Installing TTGTagCollectionView (1.11.1)
Installing YYCache (1.0.4)
Installing YYCategories (1.0.4)
Installing YYModel (1.0.4)
Installing gRPC-C++ (0.0.9)
Installing gRPC-Core (1.21.0)
Installing leveldb-library (1.22)
Installing lottie-ios (2.5.3)
Installing mob_sharesdk (4.3.2)
Installing nanopb (0.3.901)
Installing youtube-ios-player-helper (0.1.6)

[bill350]

Same issue here :'(

iOS 10 only, Firebase dependencies:

pod 'Firebase/Core', '= 6.8.1'
pod 'Firebase/Analytics', '= 6.8.1'
pod 'Firebase/Performance', '= 6.8.1'

[neilmorton]

@bill350 Is your lowest platform supported iOS 10?

[bill350]

@bill350 Is your lowest platform supported iOS 10?

Yes, iOS 10 -> iOS 13

[paulb777]

Thanks for the additional data about iOS versions.

It seems that this is an issue for iOS 9 and iOS 10. Maybe also iOS 8?

[neilmorton]

My lowest supported build is iOS 9, and iOS 9 and 10 are affected for me. As you say, it could be for 8 too, but I can’t say, sorry.

[patrickmarshall]

Hello,
We are also got same issue here.
We haven't change firebase version since 3 months ago and the problem just start occurred since September 13th.
Is it possible that the problem is from BE side?

pod 'Firebase/Core', '= 6.2.0'
pod 'Firebase/Analytics', '= 6.2.0'
pod 'Firebase/Performance', '= 6.2.0'

My lowest platform support is iOS 10.

@paulb777

[andrew-muzmatch]

Hello,
Same issue here but ours is also impacting iOS 11 and 12.
Having said that it's massively skewed towards iOS 10 (67%), not sure about iOS 9.x (we only support 10.2 and above).
Looking at the device range affected it's 70% iPhone 5 series.
These are always aligned so hard to tell if it's the device or the OS making it more likely to happen.

It only started occurring for us when we released custom tracing for the first time on 14th September. It hasn't happened for any other versions, this would seem to indicate something wrong with custom performance tracing. The following are the Firebase versions we're using:

    pod 'Firebase/Analytics', '~> 6.2.0'
    pod 'Firebase/Core', '~> 6.2.0'
    pod 'Firebase/Performance', '~> 6.2.0'
    pod 'Firebase/RemoteConfig', '~> 6.2.0'

We're going to remove custom tracing until we can figure out what this issue is.

[paulb777]

Internally tracked at b/141097962

[fangyuxi]

Hi @patrickmarshall

Can you share your Podfile and Podfile.lock?

[Strate]

Maybe related. More crashes started with our new release, ios 10 & ios 9 only:

Crashed: com.google.firebase.firestore
0  chatium                        0x3574e0 GPBCodedInputStreamReadDouble + 88 (GPBUtilities_PackagePrivate.h:88)
1  chatium                        0x3574d9 GPBCodedInputStreamReadDouble + 103 (GPBCodedInputStream.m:103)
2  chatium                        0x382415 -[GPBMessage mergeFromCodedInputStream:extensionRegistry:] + 2143 (GPBMessage.m:2143)
3  chatium                        0x357eb5 -[GPBCodedInputStream readMessage:extensionRegistry:] + 296 (GPBCodedInputStream.m:296)
4  chatium                        0x382593 -[GPBMessage mergeFromCodedInputStream:extensionRegistry:] + 2181 (GPBMessage.m:2181)
5  chatium                        0x357eb5 -[GPBCodedInputStream readMessage:extensionRegistry:] + 296 (GPBCodedInputStream.m:296)
6  chatium                        0x382593 -[GPBMessage mergeFromCodedInputStream:extensionRegistry:] + 2181 (GPBMessage.m:2181)
7  chatium                        0x357eb5 -[GPBCodedInputStream readMessage:extensionRegistry:] + 296 (GPBCodedInputStream.m:296)
8  chatium                        0x3828c3 MergeRepeatedNotPackedFieldFromCodedInputStream + 2294 (GPBMessage.m:2294)
9  chatium                        0x3823af -[GPBMessage mergeFromCodedInputStream:extensionRegistry:] + 2393 (GPBMessage.m:2393)
10 chatium                        0x357eb5 -[GPBCodedInputStream readMessage:extensionRegistry:] + 296 (GPBCodedInputStream.m:296)
11 chatium                        0x382593 -[GPBMessage mergeFromCodedInputStream:extensionRegistry:] + 2181 (GPBMessage.m:2181)
12 chatium                        0x357eb5 -[GPBCodedInputStream readMessage:extensionRegistry:] + 296 (GPBCodedInputStream.m:296)
13 chatium                        0x382593 -[GPBMessage mergeFromCodedInputStream:extensionRegistry:] + 2181 (GPBMessage.m:2181)
14 chatium                        0x357eb5 -[GPBCodedInputStream readMessage:extensionRegistry:] + 296 (GPBCodedInputStream.m:296)
15 chatium                        0x382593 -[GPBMessage mergeFromCodedInputStream:extensionRegistry:] + 2181 (GPBMessage.m:2181)
16 chatium                        0x357eb5 -[GPBCodedInputStream readMessage:extensionRegistry:] + 296 (GPBCodedInputStream.m:296)
17 chatium                        0x382593 -[GPBMessage mergeFromCodedInputStream:extensionRegistry:] + 2181 (GPBMessage.m:2181)
18 chatium                        0x381a8b -[GPBMessage mergeFromData:extensionRegistry:] + 1928 (GPBMessage.m:1928)
19 chatium                        0x37f199 -[GPBMessage initWithData:extensionRegistry:error:] + 868 (GPBMessage.m:868)
20 chatium                        0x381b5f +[GPBMessage parseFromData:extensionRegistry:error:] + 1957 (GPBMessage.m:1957)
21 chatium                        0x381b29 +[GPBMessage parseFromData:error:] + 1951 (GPBMessage.m:1951)
22 chatium                        0x2a7005 firebase::firestore::local::LevelDbQueryCache::DecodeTarget(absl::string_view) + 374 (leveldb_query_cache.mm:374)
23 chatium                        0x2a6bfd firebase::firestore::local::LevelDbQueryCache::GetTarget(FSTQuery*) + 164 (leveldb_query_cache.mm:164)
24 chatium                        0x251543 -[FSTLocalStore allocateQuery:] + 436 (FSTLocalStore.mm:436)
25 chatium                        0x27dd97 -[FSTSyncEngine listenToQuery:] + 221 (FSTSyncEngine.mm:221)
26 chatium                        0x2304c7 -[FSTEventManager addListener:] + 123 (FSTEventManager.mm:123)
27 chatium                        0x23d7b5 std::__1::__function::__func<-[FSTFirestoreClient listenToQuery:options:listener:]::$_8, std::__1::allocator<-[FSTFirestoreClient listenToQuery:options:listener:]::$_8>, void ()>::operator()() + 4517 (memory:4517)
28 chatium                        0x1f4dd1 firebase::firestore::util::AsyncQueue::ExecuteBlocking(std::__1::function<void ()> const&) + 1913 (functional:1913)
29 chatium                        0x20b189 firebase::firestore::util::internal::DispatchAsync(NSObject<OS_dispatch_queue>*, std::__1::function<void ()>&&)::$_0::__invoke(void*) + 1862 (functional:1862)
30 libdispatch.dylib              0x1da65ec5 _dispatch_queue_serial_drain + 840
31 libdispatch.dylib              0x1da5c379 _dispatch_queue_invoke + 566
32 libdispatch.dylib              0x1da6635d _dispatch_queue_override_invoke + 286
33 libdispatch.dylib              0x1da67a91 _dispatch_root_queue_drain + 378
34 libdispatch.dylib              0x1da678b7 _dispatch_worker_thread3 + 106
35 libsystem_pthread.dylib        0x1dc0e937 _pthread_wqthread + 1168
36 libsystem_pthread.dylib        0x1dc0e48c start_wqthread + 8

[tommyputranto]

Hi I have same issues with this , and its crash only for iOS 10 iPhone 5 @paulb777

[visumickey]

@Strate That crash messaged by you does not seem to be related to the current issue. Thanks for bring this to attention though. Can you create a separate issue to track that thread?

The recent changes to Firebase Performance SDK is not related to the stack trace shown. Seem to be a dependency issue. I will keep the group posted on the findings. We are working to make sure we crack this out soon.

[visumickey]

Has anyone been able to reproduce this issue locally? Curious to know if there are any log messages that happened around the crashing time?

[fangyuxi]

@visumickey

I have rolled back to version 6.7.0, but this Crash still appears. Below is the details.

[morganchen12]

Googlers-only: Related to go/phenotype-deadlock

[Strate]

@visumickey I see same frames on the right side of stacktrace, but okay

[ChristianVinterly]

Same issue here on iOS 10 (lowest supported).
Xcode 11 GM.

[ashokbhakharios]

Same issue here but also impacting iOS 11 and 12 users.

Firebase SDK- '6.7.0'

[ChristianVinterly]

[ChristianVinterly]

Using Firebase (6.7.0)
Using FirebaseABTesting (3.1.0)
Using FirebaseAnalytics (6.1.1)
Using FirebaseAnalyticsInterop (1.4.0)
Using FirebaseAuth (6.2.3)
Using FirebaseAuthInterop (1.0.0)
Using FirebaseCore (6.2.1)
Using FirebaseCoreDiagnostics (1.0.1)
Using FirebaseCoreDiagnosticsInterop (1.0.0)
Using FirebaseFirestore (1.4.5)
Using FirebaseInstanceID (4.2.3)
Using FirebasePerformance (3.1.2)
Using FirebaseRemoteConfig (4.3.0)
Using FirebaseStorage (3.4.0)

[ChristianVinterly]

If this crash is suddenly happening on versions 6.2.0 - 6.8.1, on Xcode 10 and 11 GM, and for people that haven't changed firebase version for 3 months, then it sounds like a BE issue like @patrickmarshall suggests?

[neilmorton]

Looking at the results from my updates to lock back to pod 'Firebase/Core', '~> 6.5.0' as mentioned early in this thread (which only went live last night to 3 apps), I can see that (in 1 app at least), the issue is still there now I reverted to the previous version.

Further, I now see that I have a previous build that was updated around 1 month ago has now got 1 single instance of this issue that is reporting as Sep 08 2019 08:06 (UTC) (iPhone 4s iOS 9.3.5).

As @ChristianVinterly & @patrickmarshall suggest, is this a backend change that has caused this?

All crashes I am seeing have been limited to iOS 9 / 10.

[ashokbhakharios]

Looks like most of the crashes are on jailbroken devices though crashlytics dashboard shows 0% jailbroken devices but while checking individual crash details, All devices are shown jailbroken devices.

[neilmorton]

I just looked at my stats and, unlike @ashokbhakharios mine are not showing as Jailbroken (either at the dashboard or individually). All are showing Jailbroken: No.
So I guess that may not be linked.

[ChristianVinterly]

Mine are also not Jailbroken

[Strate]

@ChristianVinterly is your crashes caused by updating pod versions? Or it just begin crash without your actions?

[bill350]

To add some information:

As suggested in my previous comment, it happens only on iOS 10 (min iOS 10 to iOS 13) and our last app version (1.6) :

We update Firebase regularly and we upgrade Firebase Core, Analytics and Performance from 6.7.0 to 6.9.1.

App shipped with Xcode 11 GM (not the GM 2).

[ChristianVinterly]

In our app, the crashes appeared yesterday after we released an update to TestFlight from Xcode 11 GM. The update did not change the Firebase SDKs, and the crash has not appeared on other versions of the app.

[paulb777]

Wondering if this is a build tools issue - stemming from building with Xcode 11 instead of Xcode 10. Has anyone seen the issue with an Xcode 10 build?

[ChristianVinterly]

I think the original post used Xcode Version 10.2.1.

[neilmorton]

My latest builds are with Xcode 11 Seed. But the one I have seen spring up from a build created 1 month ago was not the latest, so was 10.x

[patrickmarshall]

@paulb777 I am still using XCode 10.2.1 for distributing my app.

[patrickmarshall]

Here is more information about our crash,
Hope this will help Firebase SDK team here

Podfile:

pod 'Firebase/Core', '6.2.0'
pod 'Firebase/DynamicLinks', '6.2.0'
pod 'Firebase/Performance', '6.2.0'
pod 'Firebase/Messaging', '6.2.0'

Podfile.lock

  - Firebase/Core (6.2.0):
    - Firebase/CoreOnly
    - FirebaseAnalytics (= 6.0.1)
  - Firebase/CoreOnly (6.2.0):
    - FirebaseCore (= 6.0.2)
  - Firebase/DynamicLinks (6.2.0):
    - Firebase/CoreOnly
    - FirebaseDynamicLinks (~> 4.0.0)
  - Firebase/Messaging (6.2.0):
    - Firebase/CoreOnly
    - FirebaseMessaging (~> 4.0.2)
  - Firebase/Performance (6.2.0):
    - Firebase/CoreOnly
    - FirebasePerformance (~> 3.0.0)
  - FirebaseABTesting (3.0.0):
    - FirebaseCore (~> 6.0)
    - Protobuf (~> 3.5)
  - FirebaseAnalytics (6.0.1):
    - FirebaseCore (~> 6.0)
    - FirebaseInstanceID (~> 4.1)
    - GoogleAppMeasurement (= 6.0.1)
    - GoogleUtilities/AppDelegateSwizzler (~> 6.0)
    - GoogleUtilities/MethodSwizzler (~> 6.0)
    - GoogleUtilities/Network (~> 6.0)
    - "GoogleUtilities/NSData+zlib (~> 6.0)"
    - nanopb (~> 0.3)
  - FirebaseAnalyticsInterop (1.2.0)
  - FirebaseCore (6.0.2):
    - GoogleUtilities/Environment (~> 6.0)
    - GoogleUtilities/Logger (~> 6.0)
  - FirebaseDynamicLinks (4.0.0):
    - FirebaseAnalyticsInterop (~> 1.0)
    - FirebaseCore (~> 6.0)
  - FirebaseInstanceID (4.1.1):
    - FirebaseCore (~> 6.0)
    - GoogleUtilities/Environment (~> 6.0)
    - GoogleUtilities/UserDefaults (~> 6.0)
  - FirebaseMessaging (4.0.2):
    - FirebaseAnalyticsInterop (~> 1.1)
    - FirebaseCore (~> 6.0)
    - FirebaseInstanceID (~> 4.1)
    - GoogleUtilities/AppDelegateSwizzler (~> 6.2)
    - GoogleUtilities/Environment (~> 6.2)
    - GoogleUtilities/Reachability (~> 6.2)
    - GoogleUtilities/UserDefaults (~> 6.2)
    - Protobuf (~> 3.1)
  - FirebasePerformance (3.0.0):
    - FirebaseCore (~> 6.0)
    - FirebaseInstanceID (~> 4.0)
    - FirebaseRemoteConfig (~> 4.0)
    - GoogleToolboxForMac/Logger (~> 2.1)
    - "GoogleToolboxForMac/NSData+zlib (~> 2.1)"
    - GoogleUtilities/Environment (~> 6.0)
    - GoogleUtilities/ISASwizzler (~> 6.0)
    - GoogleUtilities/MethodSwizzler (~> 6.0)
    - GTMSessionFetcher/Core (~> 1.1)
    - Protobuf (~> 3.5)
  - FirebaseRemoteConfig (4.0.0):
    - FirebaseABTesting (~> 3.0)
    - FirebaseCore (~> 6.0)
    - FirebaseInstanceID (~> 4.0)
    - GoogleUtilities/Environment (~> 6.0)
    - "GoogleUtilities/NSData+zlib (~> 6.0)"
    - Protobuf (~> 3.5)

Fabric info:

Hope this will help.
@paulb777 @visumickey

[willsbor]

Hi, we also face this issue.
for iOS10 users

• Xcode 10.3
• lock file

  - Firebase/Analytics (6.6.0):
    - Firebase/Core
  - Firebase/Core (6.6.0):
    - Firebase/CoreOnly
    - FirebaseAnalytics (= 6.1.0)
  - Firebase/CoreOnly (6.6.0):
    - FirebaseCore (= 6.2.0)
  - Firebase/Performance (6.6.0):
    - Firebase/CoreOnly
    - FirebasePerformance (~> 3.1.2)
  - FirebaseABTesting (3.0.0):
    - FirebaseCore (~> 6.0)
    - Protobuf (~> 3.5)
  - FirebaseAnalytics (6.1.0):
    - FirebaseCore (~> 6.2)
    - FirebaseInstanceID (~> 4.2)
    - GoogleAppMeasurement (= 6.1.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 6.0)
    - GoogleUtilities/MethodSwizzler (~> 6.0)
    - GoogleUtilities/Network (~> 6.0)
    - "GoogleUtilities/NSData+zlib (~> 6.0)"
    - nanopb (~> 0.3)
  - FirebaseCore (6.2.0):
    - FirebaseCoreDiagnostics (~> 1.0)
    - FirebaseCoreDiagnosticsInterop (~> 1.0)
    - GoogleUtilities/Environment (~> 6.2)
    - GoogleUtilities/Logger (~> 6.2)
  - FirebaseCoreDiagnostics (1.0.1):
    - FirebaseCoreDiagnosticsInterop (~> 1.0)
    - GoogleDataTransportCCTSupport (~> 1.0)
    - GoogleUtilities/Environment (~> 6.2)
    - GoogleUtilities/Logger (~> 6.2)
  - FirebaseCoreDiagnosticsInterop (1.0.0)
  - FirebaseInstanceID (4.2.3):
    - FirebaseCore (~> 6.0)
    - GoogleUtilities/Environment (~> 6.0)
    - GoogleUtilities/UserDefaults (~> 6.0)
  - FirebasePerformance (3.1.2):
    - FirebaseCore (~> 6.2)
    - FirebaseInstanceID (~> 4.2)
    - FirebaseRemoteConfig (~> 4.2)
    - GoogleToolboxForMac/Logger (~> 2.1)
    - "GoogleToolboxForMac/NSData+zlib (~> 2.1)"
    - GoogleUtilities/Environment (~> 6.0)
    - GoogleUtilities/ISASwizzler (~> 6.0)
    - GoogleUtilities/MethodSwizzler (~> 6.0)
    - GTMSessionFetcher/Core (~> 1.1)
    - Protobuf (~> 3.5)
  - FirebaseRemoteConfig (4.2.1):
    - FirebaseABTesting (~> 3.0)
    - FirebaseCore (~> 6.1)
    - FirebaseInstanceID (~> 4.2)
    - GoogleUtilities/Environment (~> 6.0)
    - "GoogleUtilities/NSData+zlib (~> 6.0)"
    - Protobuf (~> 3.5)
...
 - Protobuf (3.9.0)
...

the crash stack is

and every crash log, it also has another thread call stack about CCTLogWriter
(not all of the crash log is the same stack.)

I'm not sure what relative between these two stack.
Hope can help this issue

[morganchen12]

@ChristianVinterly Yours is a Firestore/Protobuf issue, not related to Phenotype. Please file a separate issue.

[visumickey]

Thanks a lot @patrickmarshall @Strate @willsbor for sharing the crash details. Thanks everyone for chiming:

Trying to get some details clarified:

1. Any instance of these crashes happening only on the latest build of the App (After updating to the latest version of Firebase)? (We are trying to ascertain if this is occurring only on the latest version. Our understanding based on the comments above is NO).
2. Have the crashes started showing only from Sep 13th? (Trying to narrow down the date range)
3. Has the volume of crashes slowed down or is that still in the same range? (Trying to make sure if this is not sporadic).
4. Apart from iOS 9 and iOS 10, do we have any insights on the kind of devices where this issue is more dominant? (Helps us to reproduce the issue).

Based on our understanding until now, we do not expect this to be an SDK issue. We are still working hard to figure out what could have caused this impact.

Please share your inputs on the questions above. That can help us great!

[Strate]

@visumickey

1. I've tried to downgrade Firebase dependencies to ~> 5.20.1, build new version to Test Flight and asked one of my users to test (I do not have iOS 10 device) - it still fails, with exactly same stack trace & error. Btw, previous versions of my app, which are uses exactly same version of Pod are not affected - I do not see any errors in Crashlytics from previous app builds.

2. Can't answer, because my app released later

3. Volume of crashes is increased by 100% right now (our new version in production for 2 days). Looks like all iOS9 & ios10 devices are affected.

4. Top of my affected devices are iPhone 5 & iPhone 5c

Now I check the theory that this is build issue. When I test on iPhone 5 & ios10 simulator via "Play" button in Xcode everything is fine (no crash). Now I want to archive and export .ipa-file to test on emulator.

[visumickey]

Thanks @Strate. Can you share the podfile/podfile.lock after downgrading firebase to 5.20.1? May be we can try reproducing with that combination.

[Strate]

@visumickey

Podfile

# Uncomment the next line to define a global platform for your project
platform :ios, '9.0'


target 'chatium' do
  # Uncomment the next line if you're using Swift or would like to use dynamic frameworks
  # use_frameworks!

   # this is very important to have!
    rn_path = '../node_modules/react-native'
    pod 'yoga', path: "#{rn_path}/ReactCommon/yoga/yoga.podspec"
    pod 'React', path: rn_path, subspecs: [
      'Core',
      'RCTActionSheet',
      'RCTAnimation',
      'RCTGeolocation',
      'RCTImage',
      'RCTLinkingIOS',
      'RCTNetwork',
      'RCTSettings',
      'RCTText',
      'RCTVibration',
      'RCTWebSocket'
    ]

  # Pods for chatium
  #pod 'react-native-wkwebview', :path => '../node_modules/react-native-wkwebview-reborn'

  #pod 'react-native-splash-screen', :path => '../node_modules/react-native-splash-screen'

  pod 'RNFirebase', :path => '../node_modules/react-native-firebase/ios'

  pod 'RNVectorIcons', :path => '../node_modules/react-native-vector-icons'

  pod 'react-native-fast-image', :path => '../node_modules/react-native-fast-image'

  pod 'RNImageCropPicker', :path =>  '../node_modules/react-native-image-crop-picker'

  # Add new pods below this line
  pod 'RNAudio', :path => '../node_modules/react-native-audio'

  pod 'react-native-webview', :path => '../node_modules/react-native-webview'

  pod 'react-native-camera', :path => '../node_modules/react-native-camera'

  pod 'RNSha256', :path => '../node_modules/react-native-sha256'

  pod 'RNFS', :path => '../node_modules/react-native-fs'

  pod 'rn-fetch-blob', :path => '../node_modules/rn-fetch-blob'

  pod 'RNGestureHandler', :path => '../node_modules/react-native-gesture-handler'

  pod 'RNDeviceInfo', :path => '../node_modules/react-native-device-info'

  pod 'react-native-keep-awake', :path => '../node_modules/react-native-keep-awake'

  pod 'RNGoogleSignin', :path => '../node_modules/react-native-google-signin'

  pod 'react-native-image-resizer', :path => '../node_modules/react-native-image-resizer'

  pod 'MerryPhotoViewer', :path => '../node_modules/@merryjs/photo-viewer'

  pod 'NYTPhotoViewer',:git => 'https://github.com/NYTimes/NYTPhotoViewer.git', :branch => 'master'

  pod 'react-native-orientation-locker', :path => '../node_modules/react-native-orientation-locker'

  pod 'RNSVG', :path => '../node_modules/react-native-svg'

  pod 'react-native-video', :path => '../node_modules/react-native-video'

end

pod 'Firebase/Core', '~> 5.20.1'
pod 'Firebase/Auth', '~> 5.20.1'
pod 'Firebase/Firestore', '~> 5.20.1'
pod 'Firebase/DynamicLinks', '~> 5.20.1'
pod 'Firebase/Messaging', '~> 5.20.1'
pod 'Firebase/Database', '~> 5.20.1'
pod 'Firebase/Storage', '~> 5.20.1'
pod 'Firebase/Performance', '~> 5.20.1'

pod 'Fabric', '~> 1.9.0'
pod 'Crashlytics', '~> 3.12.0'

pod 'FacebookSDK', '~> 4.38.0'
pod 'FBSDKCoreKit', '~> 4.38.0'
pod 'FBSDKLoginKit', '~> 4.38.0'
pod 'FBSDKShareKit', '~> 4.38.0'
pod 'GoogleAppMeasurement', '5.8.1'
pod 'GoogleSignIn', '4.4.0'
# pod 'leveldb-library', '1.20'
pod 'FirebaseAnalyticsInterop', '1.2.0'
pod 'SDWebImage', '5.0.6'



# very important to have, unless you removed React dependencies for Libraries
# and you rely on Cocoapods to manage it
post_install do |installer|
  installer.pods_project.targets.each do |target|
    if target.name == "React"
      target.remove_from_project
    end
  end
end

Podilfe.lock

PODS:
  - Bolts (1.9.0):
    - Bolts/AppLinks (= 1.9.0)
    - Bolts/Tasks (= 1.9.0)
  - Bolts/AppLinks (1.9.0):
    - Bolts/Tasks
  - Bolts/Tasks (1.9.0)
  - BoringSSL-GRPC (0.0.2):
    - BoringSSL-GRPC/Implementation (= 0.0.2)
    - BoringSSL-GRPC/Interface (= 0.0.2)
  - BoringSSL-GRPC/Implementation (0.0.2):
    - BoringSSL-GRPC/Interface (= 0.0.2)
  - BoringSSL-GRPC/Interface (0.0.2)
  - Crashlytics (3.12.0):
    - Fabric (~> 1.9.0)
  - Fabric (1.9.0)
  - FacebookSDK (4.38.0):
    - Bolts (~> 1.9)
    - FacebookSDK/CoreKit (= 4.38.0)
    - FacebookSDK/MarketingKit (= 4.38.0)
  - FacebookSDK/CoreKit (4.38.0):
    - Bolts (~> 1.9)
    - FBSDKCoreKit
  - FacebookSDK/MarketingKit (4.38.0):
    - Bolts (~> 1.9)
    - FacebookSDK/CoreKit
    - FBSDKMarketingKit
  - FBSDKCoreKit (4.38.1):
    - Bolts (~> 1.9)
  - FBSDKLoginKit (4.38.1):
    - FBSDKCoreKit
  - FBSDKMarketingKit (4.38.0):
    - FBSDKCoreKit
  - FBSDKShareKit (4.38.1):
    - FBSDKCoreKit
  - Firebase/Auth (5.20.2):
    - Firebase/CoreOnly
    - FirebaseAuth (= 5.4.2)
  - Firebase/Core (5.20.2):
    - Firebase/CoreOnly
    - FirebaseAnalytics (= 5.8.1)
  - Firebase/CoreOnly (5.20.2):
    - FirebaseCore (= 5.4.1)
  - Firebase/Database (5.20.2):
    - Firebase/CoreOnly
    - FirebaseDatabase (= 5.1.1)
  - Firebase/DynamicLinks (5.20.2):
    - Firebase/CoreOnly
    - FirebaseDynamicLinks (= 3.4.3)
  - Firebase/Firestore (5.20.2):
    - Firebase/CoreOnly
    - FirebaseFirestore (= 1.2.1)
  - Firebase/Messaging (5.20.2):
    - Firebase/CoreOnly
    - FirebaseMessaging (= 3.5.0)
  - Firebase/Performance (5.20.2):
    - Firebase/Core
    - FirebasePerformance (= 2.2.4)
  - Firebase/Storage (5.20.2):
    - Firebase/CoreOnly
    - FirebaseStorage (= 3.1.1)
  - FirebaseABTesting (2.0.0):
    - FirebaseCore (~> 5.0)
    - Protobuf (~> 3.5)
  - FirebaseAnalytics (5.8.1):
    - FirebaseCore (~> 5.4)
    - FirebaseInstanceID (~> 3.8)
    - GoogleAppMeasurement (= 5.8.1)
    - GoogleUtilities/AppDelegateSwizzler (~> 5.2)
    - GoogleUtilities/MethodSwizzler (~> 5.2)
    - GoogleUtilities/Network (~> 5.2)
    - "GoogleUtilities/NSData+zlib (~> 5.2)"
    - nanopb (~> 0.3)
  - FirebaseAnalyticsInterop (1.2.0)
  - FirebaseAuth (5.4.2):
    - FirebaseAuthInterop (~> 1.0)
    - FirebaseCore (~> 5.2)
    - GoogleUtilities/Environment (~> 5.2)
    - GTMSessionFetcher/Core (~> 1.1)
  - FirebaseAuthInterop (1.0.0)
  - FirebaseCore (5.4.1):
    - GoogleUtilities/Environment (~> 5.2)
    - GoogleUtilities/Logger (~> 5.2)
  - FirebaseDatabase (5.1.1):
    - FirebaseAuthInterop (~> 1.0)
    - FirebaseCore (~> 5.2)
    - leveldb-library (~> 1.18)
  - FirebaseDynamicLinks (3.4.3):
    - FirebaseAnalytics (~> 5.1)
    - FirebaseAnalyticsInterop (~> 1.0)
    - FirebaseCore (~> 5.2)
  - FirebaseFirestore (1.2.1):
    - FirebaseAuthInterop (~> 1.0)
    - FirebaseCore (~> 5.2)
    - FirebaseFirestore/abseil-cpp (= 1.2.1)
    - "gRPC-C++ (= 0.0.6)"
    - leveldb-library (~> 1.20)
    - nanopb (~> 0.3.901)
    - Protobuf (~> 3.1)
  - FirebaseFirestore/abseil-cpp (1.2.1):
    - FirebaseAuthInterop (~> 1.0)
    - FirebaseCore (~> 5.2)
    - "gRPC-C++ (= 0.0.6)"
    - leveldb-library (~> 1.20)
    - nanopb (~> 0.3.901)
    - Protobuf (~> 3.1)
  - FirebaseInstanceID (3.8.1):
    - FirebaseCore (~> 5.2)
    - GoogleUtilities/Environment (~> 5.2)
    - GoogleUtilities/UserDefaults (~> 5.2)
  - FirebaseMessaging (3.5.0):
    - FirebaseAnalyticsInterop (~> 1.1)
    - FirebaseCore (~> 5.2)
    - FirebaseInstanceID (~> 3.6)
    - GoogleUtilities/Environment (~> 5.3)
    - GoogleUtilities/Reachability (~> 5.3)
    - GoogleUtilities/UserDefaults (~> 5.3)
    - Protobuf (~> 3.1)
  - FirebasePerformance (2.2.4):
    - FirebaseAnalytics (~> 5.8)
    - FirebaseInstanceID (~> 3.8)
    - FirebaseRemoteConfig (~> 3.1)
    - GoogleToolboxForMac/Logger (~> 2.1)
    - "GoogleToolboxForMac/NSData+zlib (~> 2.1)"
    - GoogleUtilities/ISASwizzler (~> 5.2)
    - GoogleUtilities/MethodSwizzler (~> 5.2)
    - GTMSessionFetcher/Core (~> 1.1)
    - Protobuf (~> 3.5)
  - FirebaseRemoteConfig (3.1.0):
    - FirebaseABTesting (~> 2.0)
    - FirebaseAnalytics (~> 5.3)
    - FirebaseCore (~> 5.1)
    - FirebaseInstanceID (~> 3.3)
    - GoogleUtilities/Environment (~> 5.2)
    - "GoogleUtilities/NSData+zlib (~> 5.2)"
    - Protobuf (~> 3.5)
  - FirebaseStorage (3.1.1):
    - FirebaseAuthInterop (~> 1.0)
    - FirebaseCore (~> 5.2)
    - GTMSessionFetcher/Core (~> 1.1)
  - FLAnimatedImage (1.0.12)
  - GoogleAppMeasurement (5.8.1):
    - GoogleUtilities/AppDelegateSwizzler (~> 5.2)
    - GoogleUtilities/MethodSwizzler (~> 5.2)
    - GoogleUtilities/Network (~> 5.2)
    - "GoogleUtilities/NSData+zlib (~> 5.2)"
    - nanopb (~> 0.3)
  - GoogleSignIn (4.4.0):
    - "GoogleToolboxForMac/NSDictionary+URLArguments (~> 2.1)"
    - "GoogleToolboxForMac/NSString+URLArguments (~> 2.1)"
    - GTMSessionFetcher/Core (~> 1.1)
  - GoogleToolboxForMac/DebugUtils (2.2.1):
    - GoogleToolboxForMac/Defines (= 2.2.1)
  - GoogleToolboxForMac/Defines (2.2.1)
  - GoogleToolboxForMac/Logger (2.2.1):
    - GoogleToolboxForMac/Defines (= 2.2.1)
  - "GoogleToolboxForMac/NSData+zlib (2.2.1)":
    - GoogleToolboxForMac/Defines (= 2.2.1)
  - "GoogleToolboxForMac/NSDictionary+URLArguments (2.2.1)":
    - GoogleToolboxForMac/DebugUtils (= 2.2.1)
    - GoogleToolboxForMac/Defines (= 2.2.1)
    - "GoogleToolboxForMac/NSString+URLArguments (= 2.2.1)"
  - "GoogleToolboxForMac/NSString+URLArguments (2.2.1)"
  - GoogleUtilities/AppDelegateSwizzler (5.8.0):
    - GoogleUtilities/Environment
    - GoogleUtilities/Logger
    - GoogleUtilities/Network
  - GoogleUtilities/Environment (5.8.0)
  - GoogleUtilities/ISASwizzler (5.8.0)
  - GoogleUtilities/Logger (5.8.0):
    - GoogleUtilities/Environment
  - GoogleUtilities/MethodSwizzler (5.8.0):
    - GoogleUtilities/Logger
  - GoogleUtilities/Network (5.8.0):
    - GoogleUtilities/Logger
    - "GoogleUtilities/NSData+zlib"
    - GoogleUtilities/Reachability
  - "GoogleUtilities/NSData+zlib (5.8.0)"
  - GoogleUtilities/Reachability (5.8.0):
    - GoogleUtilities/Logger
  - GoogleUtilities/UserDefaults (5.8.0):
    - GoogleUtilities/Logger
  - "gRPC-C++ (0.0.6)":
    - "gRPC-C++/Implementation (= 0.0.6)"
    - "gRPC-C++/Interface (= 0.0.6)"
  - "gRPC-C++/Implementation (0.0.6)":
    - "gRPC-C++/Interface (= 0.0.6)"
    - gRPC-Core (= 1.17.0)
    - nanopb (~> 0.3)
  - "gRPC-C++/Interface (0.0.6)"
  - gRPC-Core (1.17.0):
    - gRPC-Core/Implementation (= 1.17.0)
    - gRPC-Core/Interface (= 1.17.0)
  - gRPC-Core/Implementation (1.17.0):
    - BoringSSL-GRPC (= 0.0.2)
    - gRPC-Core/Interface (= 1.17.0)
    - nanopb (~> 0.3)
  - gRPC-Core/Interface (1.17.0)
  - GTMSessionFetcher/Core (1.2.2)
  - leveldb-library (1.22)
  - MerryPhotoViewer (3.0.1):
    - NYTPhotoViewer
    - React
  - nanopb (0.3.901):
    - nanopb/decode (= 0.3.901)
    - nanopb/encode (= 0.3.901)
  - nanopb/decode (0.3.901)
  - nanopb/encode (0.3.901)
  - NYTPhotoViewer (2.0.0):
    - NYTPhotoViewer/AnimatedGifSupport (= 2.0.0)
    - NYTPhotoViewer/Core (= 2.0.0)
  - NYTPhotoViewer/AnimatedGifSupport (2.0.0):
    - FLAnimatedImage (~> 1.0.12)
    - NYTPhotoViewer/Core
  - NYTPhotoViewer/Core (2.0.0)
  - Protobuf (3.9.0)
  - QBImagePickerController (3.4.0)
  - React (0.59.9):
    - React/Core (= 0.59.9)
  - react-native-camera (2.2.2):
    - React
    - react-native-camera/RCT (= 2.2.2)
    - react-native-camera/RN (= 2.2.2)
  - react-native-camera/RCT (2.2.2):
    - React
  - react-native-camera/RN (2.2.2):
    - React
  - react-native-fast-image (6.1.1):
    - React
    - SDWebImage (~> 5.0)
  - react-native-image-resizer (1.0.0):
    - React
  - react-native-keep-awake (4.0.0):
    - React
  - react-native-orientation-locker (1.0.22):
    - React
  - react-native-video (4.4.4):
    - React
    - react-native-video/Video (= 4.4.4)
  - react-native-video/Video (4.4.4):
    - React
  - react-native-webview (5.12.0):
    - React
  - React/Core (0.59.9):
    - yoga (= 0.59.9.React)
  - React/fishhook (0.59.9)
  - React/RCTActionSheet (0.59.9):
    - React/Core
  - React/RCTAnimation (0.59.9):
    - React/Core
  - React/RCTBlob (0.59.9):
    - React/Core
  - React/RCTGeolocation (0.59.9):
    - React/Core
  - React/RCTImage (0.59.9):
    - React/Core
    - React/RCTNetwork
  - React/RCTLinkingIOS (0.59.9):
    - React/Core
  - React/RCTNetwork (0.59.9):
    - React/Core
  - React/RCTSettings (0.59.9):
    - React/Core
  - React/RCTText (0.59.9):
    - React/Core
  - React/RCTVibration (0.59.9):
    - React/Core
  - React/RCTWebSocket (0.59.9):
    - React/Core
    - React/fishhook
    - React/RCTBlob
  - rn-fetch-blob (0.10.6):
    - React/Core
  - RNAudio (4.3.0):
    - React
  - RNDeviceInfo (2.1.2):
    - React
  - RNFirebase (5.4.2):
    - Firebase/Core
    - React
  - RNFS (2.13.3):
    - React
  - RNGestureHandler (1.3.0):
    - React
  - RNGoogleSignin (1.0.2):
    - GoogleSignIn
    - React
  - RNImageCropPicker (0.21.3):
    - QBImagePickerController
    - React/Core
    - RSKImageCropper
  - RNSha256 (1.2.3):
    - React
  - RNSVG (8.0.11):
    - React
  - RNVectorIcons (6.6.0):
    - React
  - RSKImageCropper (2.2.3)
  - SDWebImage (5.0.6):
    - SDWebImage/Core (= 5.0.6)
  - SDWebImage/Core (5.0.6)
  - yoga (0.59.9.React)

DEPENDENCIES:
  - Crashlytics (~> 3.12.0)
  - Fabric (~> 1.9.0)
  - FacebookSDK (~> 4.38.0)
  - FBSDKCoreKit (~> 4.38.0)
  - FBSDKLoginKit (~> 4.38.0)
  - FBSDKShareKit (~> 4.38.0)
  - Firebase/Auth (~> 5.20.1)
  - Firebase/Core (~> 5.20.1)
  - Firebase/Database (~> 5.20.1)
  - Firebase/DynamicLinks (~> 5.20.1)
  - Firebase/Firestore (~> 5.20.1)
  - Firebase/Messaging (~> 5.20.1)
  - Firebase/Performance (~> 5.20.1)
  - Firebase/Storage (~> 5.20.1)
  - FirebaseAnalyticsInterop (= 1.2.0)
  - GoogleAppMeasurement (= 5.8.1)
  - GoogleSignIn (= 4.4.0)
  - "MerryPhotoViewer (from `../node_modules/@merryjs/photo-viewer`)"
  - NYTPhotoViewer (from `https://github.com/NYTimes/NYTPhotoViewer.git`, branch `master`)
  - react-native-camera (from `../node_modules/react-native-camera`)
  - react-native-fast-image (from `../node_modules/react-native-fast-image`)
  - react-native-image-resizer (from `../node_modules/react-native-image-resizer`)
  - react-native-keep-awake (from `../node_modules/react-native-keep-awake`)
  - react-native-orientation-locker (from `../node_modules/react-native-orientation-locker`)
  - react-native-video (from `../node_modules/react-native-video`)
  - react-native-webview (from `../node_modules/react-native-webview`)
  - React/Core (from `../node_modules/react-native`)
  - React/RCTActionSheet (from `../node_modules/react-native`)
  - React/RCTAnimation (from `../node_modules/react-native`)
  - React/RCTGeolocation (from `../node_modules/react-native`)
  - React/RCTImage (from `../node_modules/react-native`)
  - React/RCTLinkingIOS (from `../node_modules/react-native`)
  - React/RCTNetwork (from `../node_modules/react-native`)
  - React/RCTSettings (from `../node_modules/react-native`)
  - React/RCTText (from `../node_modules/react-native`)
  - React/RCTVibration (from `../node_modules/react-native`)
  - React/RCTWebSocket (from `../node_modules/react-native`)
  - rn-fetch-blob (from `../node_modules/rn-fetch-blob`)
  - RNAudio (from `../node_modules/react-native-audio`)
  - RNDeviceInfo (from `../node_modules/react-native-device-info`)
  - RNFirebase (from `../node_modules/react-native-firebase/ios`)
  - RNFS (from `../node_modules/react-native-fs`)
  - RNGestureHandler (from `../node_modules/react-native-gesture-handler`)
  - RNGoogleSignin (from `../node_modules/react-native-google-signin`)
  - RNImageCropPicker (from `../node_modules/react-native-image-crop-picker`)
  - RNSha256 (from `../node_modules/react-native-sha256`)
  - RNSVG (from `../node_modules/react-native-svg`)
  - RNVectorIcons (from `../node_modules/react-native-vector-icons`)
  - SDWebImage (= 5.0.6)
  - yoga (from `../node_modules/react-native/ReactCommon/yoga/yoga.podspec`)

SPEC REPOS:
  https://github.com/cocoapods/specs.git:
    - Bolts
    - BoringSSL-GRPC
    - Crashlytics
    - Fabric
    - FacebookSDK
    - FBSDKCoreKit
    - FBSDKLoginKit
    - FBSDKMarketingKit
    - FBSDKShareKit
    - Firebase
    - FirebaseABTesting
    - FirebaseAnalytics
    - FirebaseAnalyticsInterop
    - FirebaseAuth
    - FirebaseAuthInterop
    - FirebaseCore
    - FirebaseDatabase
    - FirebaseDynamicLinks
    - FirebaseFirestore
    - FirebaseInstanceID
    - FirebaseMessaging
    - FirebasePerformance
    - FirebaseRemoteConfig
    - FirebaseStorage
    - FLAnimatedImage
    - GoogleAppMeasurement
    - GoogleSignIn
    - GoogleToolboxForMac
    - GoogleUtilities
    - "gRPC-C++"
    - gRPC-Core
    - GTMSessionFetcher
    - leveldb-library
    - nanopb
    - Protobuf
    - QBImagePickerController
    - RSKImageCropper
    - SDWebImage

EXTERNAL SOURCES:
  MerryPhotoViewer:
    :path: "../node_modules/@merryjs/photo-viewer"
  NYTPhotoViewer:
    :branch: master
    :git: https://github.com/NYTimes/NYTPhotoViewer.git
  React:
    :path: "../node_modules/react-native"
  react-native-camera:
    :path: "../node_modules/react-native-camera"
  react-native-fast-image:
    :path: "../node_modules/react-native-fast-image"
  react-native-image-resizer:
    :path: "../node_modules/react-native-image-resizer"
  react-native-keep-awake:
    :path: "../node_modules/react-native-keep-awake"
  react-native-orientation-locker:
    :path: "../node_modules/react-native-orientation-locker"
  react-native-video:
    :path: "../node_modules/react-native-video"
  react-native-webview:
    :path: "../node_modules/react-native-webview"
  rn-fetch-blob:
    :path: "../node_modules/rn-fetch-blob"
  RNAudio:
    :path: "../node_modules/react-native-audio"
  RNDeviceInfo:
    :path: "../node_modules/react-native-device-info"
  RNFirebase:
    :path: "../node_modules/react-native-firebase/ios"
  RNFS:
    :path: "../node_modules/react-native-fs"
  RNGestureHandler:
    :path: "../node_modules/react-native-gesture-handler"
  RNGoogleSignin:
    :path: "../node_modules/react-native-google-signin"
  RNImageCropPicker:
    :path: "../node_modules/react-native-image-crop-picker"
  RNSha256:
    :path: "../node_modules/react-native-sha256"
  RNSVG:
    :path: "../node_modules/react-native-svg"
  RNVectorIcons:
    :path: "../node_modules/react-native-vector-icons"
  yoga:
    :path: "../node_modules/react-native/ReactCommon/yoga/yoga.podspec"

CHECKOUT OPTIONS:
  NYTPhotoViewer:
    :commit: 533a1fa40d0d4d518df737b76318715408050b74
    :git: https://github.com/NYTimes/NYTPhotoViewer.git

SPEC CHECKSUMS:
  Bolts: ac6567323eac61e203f6a9763667d0f711be34c8
  BoringSSL-GRPC: 2a230d9cd93e7ce39916044f645cebb31f37dde6
  Crashlytics: 07fb167b1694128c1c9a5a5cc319b0e9c3ca0933
  Fabric: f988e33c97f08930a413e08123064d2e5f68d655
  FacebookSDK: 73f54b8b94e09b05647cdef0af147f470cd3edc6
  FBSDKCoreKit: 8d47857400e2f5bdea697a80daff882e91c84ef6
  FBSDKLoginKit: 4621c690d9dd8628031a4791497062183ea34b0d
  FBSDKMarketingKit: e609f39d74ab273cf52e2f8b7e8829ed412b2827
  FBSDKShareKit: 6ffe22f0a0618eb7424d4104ab0ef3ce9643d42a
  Firebase: 0c8cf33f266410c61ab3e2265cfa412200351d9c
  FirebaseABTesting: 1f50b8d50f5e3469eea54e7463a7b7fe221d1f5e
  FirebaseAnalytics: ece1aa57a4f43c64d53a648b5a5e05151aae947b
  FirebaseAnalyticsInterop: efbe45c8385ec626e29f9525e5ebd38520dfb6c1
  FirebaseAuth: dd7bbf03a5aee0eafb3a1aee4d2812bd74bac890
  FirebaseAuthInterop: 0ffa57668be100582bb7643d4fcb7615496c41fc
  FirebaseCore: f1a9a8be1aee4bf71a2fc0f4096df6788bdfda61
  FirebaseDatabase: 2c15b0ea6f2c6eb5e57413f9d6340f1e50b81ae3
  FirebaseDynamicLinks: f7a8717e2c7ea652923882a2d60b0045d6fd99d5
  FirebaseFirestore: faca891c0f0d1d6c10c793473e2f6a29d75014b5
  FirebaseInstanceID: a122b0c258720cf250551bb2bedf48c699f80d90
  FirebaseMessaging: 4235f949ce1c4e827aeb19705ba5c53f9b85aa10
  FirebasePerformance: 25ecee2a260bcf398d7f32d6f4804438df953100
  FirebaseRemoteConfig: 7e11c65f0769c09bff6947997c209515058c5318
  FirebaseStorage: 6162ef4322502b818d9de0ec552f5226d283de43
  FLAnimatedImage: 4a0b56255d9b05f18b6dd7ee06871be5d3b89e31
  GoogleAppMeasurement: ffe513e90551844a739e7bcbb1d2aca1c28a4338
  GoogleSignIn: 7ff245e1a7b26d379099d3243a562f5747e23d39
  GoogleToolboxForMac: b3553629623a3b1bff17f555e736cd5a6d95ad55
  GoogleUtilities: 04fce34bcd5620c1ee76fb79172105c74a4df335
  "gRPC-C++": e76441995900ac90e9bd98644ab4733f12521edf
  gRPC-Core: 4028031ed2c5267cca0d846c876d8046b1ecb9b6
  GTMSessionFetcher: 61bb0f61a4cb560030f1222021178008a5727a23
  leveldb-library: 55d93ee664b4007aac644a782d11da33fba316f7
  MerryPhotoViewer: 76fd45056ab0a3746b4c57155e86227169330b9e
  nanopb: 2901f78ea1b7b4015c860c2fdd1ea2fee1a18d48
  NYTPhotoViewer: 34b8bd6bcc297466adec1668f9a01249d73c90e6
  Protobuf: 1097ca58584c8d9be81bfbf2c5ff5975648dd87a
  QBImagePickerController: d54cf93db6decf26baf6ed3472f336ef35cae022
  React: a86b92f00edbe1873a63e4a212c29b7a7ad5224f
  react-native-camera: 6d4d176ad6b10fda0aeeeb287ed2fc8b0194b118
  react-native-fast-image: fdfc612dba58fd73136cf5efdaeb8cfcad7f63b2
  react-native-image-resizer: aa1600566fd336a044daf9273dcec5033c1d41ca
  react-native-keep-awake: eba3137546b10003361b37c761f6c429b59814ae
  react-native-orientation-locker: ccb550d3b1019a7cbbce0f51faa605e9e6b523cf
  react-native-video: 25d5aebb3c9d7cdefe7a909306c7ab40be4a892c
  react-native-webview: 26d8993b090ca5d59eb9a9466dcb8291baa3223e
  rn-fetch-blob: 766f85cabd2992300dfa1be2bc9e4e258abc6f04
  RNAudio: cae2991f2dccb75163f260b60da8051717b959fa
  RNDeviceInfo: fd8296de6fca8b743cdc499b896f48e8a9f1faf5
  RNFirebase: 891477280514b0cef3225cc48709cabedd192d5e
  RNFS: c9bbde46b0d59619f8e7b735991c60e0f73d22c1
  RNGestureHandler: 5329a942fce3d41c68b84c2c2276ce06a696d8b0
  RNGoogleSignin: 361174d9a3090d295b06257162b560d8efc8a6ed
  RNImageCropPicker: 754299983d07c450aec0834c0efe0ed114131ff3
  RNSha256: 6fe8087682400f376fd78bd7d24222f0ec8ef968
  RNSVG: c3d27cf99f8484d3d8f8bb017b5438fd321267cf
  RNVectorIcons: 0bb4def82230be1333ddaeee9fcba45f0b288ed4
  RSKImageCropper: a446db0e8444a036b34f3c43db01b2373baa4b2a
  SDWebImage: 920f1a2ff1ca8296ad34f6e0510a1ef1d70ac965
  yoga: 03ff42a6f223fb88deeaed60249020d80c3091ee

PODFILE CHECKSUM: e72b28149c347933e09a4f6f1cec28ced98357ea

COCOAPODS: 1.7.5

[visumickey]

Thanks @Strate. Will try reproducing with this combination.

[willsbor]

@visumickey

1. Any instance of these crashes happening only on the latest build of the App (After updating to the latest version of Firebase)? (We are trying to ascertain if this is occurring only on the latest version. Our understanding based on the comments above is NO).

after the version which we face this issue, we release a new version. but we doesn't change the Firebase version. So we still see the crash report on crashlytics.
and we do not see any errors in Crashlytics from previous app builds.

1. Have the crashes started showing only from Sep 13th? (Trying to narrow down the date range)

our time zone is +8:00

1. Has the volume of crashes slowed down or is that still in the same range? (Trying to make sure if this is not sporadic).

I'm not sure.

1. Apart from iOS 9 and iOS 10, do we have any insights on the kind of devices where this issue is more dominant? (Helps us to reproduce the issue).

Thanks 🙏

[ChristianVinterly]

@morganchen12 Sure, I can create another issue. But it has the exact same stack trace in Protobuf, even if call site from your framework is different.

[willsbor]

@visumickey

Another information...

in Sep 12, we released a version 2.36.1, but it had a crash issue (not this). so we fixed it and released a version 2.36.2 in Sep 13. This version just fix a bug without changing Podfile / Podfile.lock.

the result is "2.36.1 didn't face this crash issue, but 2.36.2 has this crash."
(These two versions are separated by 1 to 2 days.)

I'm not sure what happened between the fix and Firebase. But that fix is modifying object creating timing. 🙏

[paulb777]

Thanks for sharing the device information.

Given the device information we've seen so far, it seems that this is a 32-bit device only crash. Has anyone seen this on a 64-bit device?

The crash occurs converting a stream to a double, so it could be an unaligned access error. It's still totally a mystery to me why this just started occurring recently.

[paulb777]

I've reproduced the crash on an iPhone 5c with the Firestore quickstart app. It crashes every time when building in release mode.

[paulb777]

I found a workaround:

Update the GPBConvertInt64ToDouble function in . ./Pods/Protobuf/objectivec/GPBUtilities_PackagePrivate.h as follows with the volatile:

GPB_INLINE double GPBConvertInt64ToDouble(int64_t v) {
volatile union { double f; int64_t i; } u;
u.i = v;
return u.f;
}

• Clean the workspace
• Rebuild
• Reapply if the pods are updated

Here's my best guess rationale:

There's an optimizer bug such that the compiler does not properly honor the alignment restrictions of an inline function that can result in an unaligned exception when accessing 64 bit data on a 32 bit processor.

I suspect the bug has been there a while, but has been exposed by a recent backend protocol buffers change.

We'll follow up with the Protocol Buffers team on a fix.

[paulb777]

And here's a workaround that won't impact 64-bit performance:

GPB_INLINE double GPBConvertInt64ToDouble(int64_t v) {
#if __LP64__
  union { double f; int64_t i; } u;
#else
  volatile union { double f; int64_t i; } u;
#endif
  u.i = v;
  return u.f;
}

[neilmorton]

@paulb777 That is great that you managed to reproduce and resolve.
Are you releasing an urgent update? and if so, when do you expect? (Will it be an emergency release?) Or are we better to patch with this ourselves?
Thanks.

[paulb777]

@neilmorton The patch timeline is still TBD. Since the crash is in a Firebase dependency and not in Firebase itself, we need to coordinate the fix and release with the Protobuf team. Also, we don't yet understand what made this bug all of a sudden occur starting last week.

It would also be helpful if others could reproduce with a release configuration build running on a 32 bit device and then verify the workaround.

[neilmorton]

@paulb777 Thanks for the clarification.

Unfortunately I haven't got anyone I can reach out to with a 32 bit device.

How confident are you in this fix? (Only asking before we start adding it manually!). Thanks.

[paulb777]

I'm confident adding the volatile fixes the crash in the Firestore quickstart and it seems likely that it should fix any similar crashes.

However, given that we don't yet fully understand the root causes, there is still some uncertainty.

In summary, I would recommend that anyone using FirebaseFirestore or FirebasePerformance who cares about 32-bit device support to ship an update with the patch, ideally after verification if you can access a 32-bit device.

The patch should be a no-op for 64-bit devices and fix a likely crash for 32-bit devices.

[freezy7]

@paulb777 is you release ipa have a bitcode option YES, I guess it is the bitcode option cause, I have the same issue, and I have not updated the SDK.

[freezy7]

@fangyuxi did you release your app with a bitcode option?

[fangyuxi]

@freezy7 YES

[freezy7]

@fangyuxi I think it is caused by uploading ipa to App Connect and choosing rebuild with bicode. I think I can try not to select this option first, but it takes a certain amount of time to submit the review. I have not tried it yet.

[fangyuxi]

@freezy7 可能不是bitcode的原因。还是别试了。

[Strate]

@paulb777 thank you for workaround. I confirm that this fixes crash on iPhone 5 device for my app.

[fangyuxi]

@Strate Hello, Do I need to update my app or Firebase to fix this Crash ?

[Strate]

@fagyuxi I applied workaround manually and built new version of app to AppStore

[paulb777]

We're continuing to investigate. The initial proposed Protobuf PR (see above) still causes an alignment exception. The best known workaround is still to use the volatile change documented above.

Also, even though the initial bug report says Xcode 10 was used, we're only able to reproduce with Xcode 11 builds. Is anyone else seeing the issue from an Xcode 10 build?

[neilmorton]

@paulb777 I saw one instance in an app which was dated around the 8th and was on an Xcode 10 build. But looking now I can't see it in Fabric. So, I think it may have been an anomaly. The rest of mine were with Xcode 11.

[Strate]

@paulb777 I use xCode 10 right now. Can confirm crash & workaround.

[Nishant-goibibo]

Yes, we are getting this issue with Xcode 10.2.1 also.

[Nishant-goibibo]

We are getting same crash on iOS 11 and 12 with 64 Bit Devices.

[simonbengtsson]

Our production build that crashes is built with Xcode 10.3. We don't have any builds in production with Xcode 11 yet.

[thomasvl]

We are getting same crash on iOS 11 and 12 with 64 Bit Devices.

@Nishant-goibibo what specific device? I didn't think arm64 had unaligned memory issues. Or are you maybe build 32bit only and running that on arm64?

[paulb777]

The protobuf fix is in progress at https://github.com/protocolbuffers/protobuf/pull/6678

[alexanderkhitev]

hey everyone! when will be update?

[paulb777]

Protobuf 3.9.2 has now been published to CocoaPods with the fix.

pod update to pick it up.

[paulb777]

Thanks to everyone who contributed to this thread with backtraces and detailed crash information that helped us track this one down!

[datalogen]

@paulb777 any timeline for a carthage update including the fix?

[paulb777]

@datalogen Are you seeing the crash with a Carthage distribution?

[datalogen]

@paulb777 Debug builds are not showing the issue - release builds however are consistently crashing on my 32-bit device running iOS 9.3.5.

[paulb777]

Thanks @datalogen. The fix will be included in the Firebase 6.9.0 Carthage (and zip) release that is planned to go out early in the week.

[patrickmarshall]

Hello,
We have release our apps since september 27th and the problem doesn't seems to be appear anymore.
We just want to say thanks to @paulb777 @visumickey and other google team that help to fixed this issue.