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React Native Android application crashing when using syncSession.addConnectionNotification #6579

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gfrancischini opened this issue Mar 26, 2024 · 13 comments · Fixed by #6612 · May be fixed by realm/realm-core#7963 or #6824
Open

React Native Android application crashing when using syncSession.addConnectionNotification #6579

gfrancischini opened this issue Mar 26, 2024 · 13 comments · Fixed by #6612 · May be fixed by realm/realm-core#7963 or #6824
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@jbreams
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Encryption:Off Frequency:Always O-Community SDK-Use:Sync T-Bug

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@gfrancischini
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gfrancischini commented Mar 26, 2024 •
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How frequently does the bug occur?

Always

Description

The react native application is crashing when there is an active syncSession.addConnectionNotification and the app gets reloaded

Stacktrace & log output

Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x30 in tid 8357 (mqt_js), pid 8292 (om.synctutorial)
2024-03-26 17:24:24.007  8292-8292  unknown:Re...nceManager com.synctutorial                     E  destroyRootView called
2024-03-26 17:24:24.009  8292-8292  unknown:Re...nceManager com.synctutorial                     E  destroyRootView called, unmountReactApplication

Cmdline: com.synctutorial
2024-03-26 17:24:25.208  8538-8538  DEBUG                   crash_dump64                         A  pid: 8292, tid: 8357, name: mqt_js  >>> com.synctutorial <<<
2024-03-26 17:24:25.208  8538-8538  DEBUG                   crash_dump64                         A        #00 pc 00000000003bfd00  /data/app/~~kwxPndNsCq5S-a142smnIA==/com.synctutorial-Jxnmi56nwT1pLTopnsEDBg==/lib/arm64/librealm.so (BuildId: edf6f0d435afef43e7dfceba74cfdd58b0289992)
2024-03-26 17:24:25.208  8538-8538  DEBUG                   crash_dump64                         A        #01 pc 00000000003c061c  /data/app/~~kwxPndNsCq5S-a142smnIA==/com.synctutorial-Jxnmi56nwT1pLTopnsEDBg==/lib/arm64/librealm.so (BuildId: edf6f0d435afef43e7dfceba74cfdd58b0289992)
2024-03-26 17:24:25.208  8538-8538  DEBUG                   crash_dump64                         A        #02 pc 000000000041c924  /data/app/~~kwxPndNsCq5S-a142smnIA==/com.synctutorial-Jxnmi56nwT1pLTopnsEDBg==/lib/arm64/librealm.so (BuildId: edf6f0d435afef43e7dfceba74cfdd58b0289992)
2024-03-26 17:24:25.208  8538-8538  DEBUG                   crash_dump64                         A        #03 pc 000000000041d634  /data/app/~~kwxPndNsCq5S-a142smnIA==/com.synctutorial-Jxnmi56nwT1pLTopnsEDBg==/lib/arm64/librealm.so (BuildId: edf6f0d435afef43e7dfceba74cfdd58b0289992)

Can you reproduce the bug?

Yes, always

Reproduction Steps

Using this branch: https://github.com/Spring-Global/realm-react-native-sample/tree/realm-crash-callback

  1. Run the application on android emulator
  2. Refresh the react native app with cmd+r

Version

realm@12.6.2

What services are you using?

Atlas Device Sync

Are you using encryption?

No

Platform OS and version(s)

Android - Emulator API 34

Build environment

Which debugger for React Native: ..

Cocoapods version

No response
@sync-by-unito Sync by Unito
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sync-by-unito bot commented Mar 26, 2024

➤ PM Bot commented:

Jira ticket: RJS-2784

@kneth
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kneth commented Apr 9, 2024

@gfrancischini Thank you for reporting.

The issue is similar to #6558, and we are investigating.

@kneth kneth mentioned this issue Apr 12, 2024
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@kneth
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kneth commented Apr 12, 2024

@gfrancischini I have a PR up which I think will fix the issue: #6612

@gfrancischini
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Hi Kneth, thanks for the update. It seems that the change is only on JS side right?

// Clear the internal state to prevent crashes when reloading on React Native
binding.RealmCoordinator.clearAllCaches();
binding.App.clearCachedApps();

I will give a try

@vatsal-gadhiya-searce
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@kneth We have tried hot reload this time and the app is still crashing for us with latest version of realm 12.7.1.

Note: It does not crashes normally though for the first time.

@kneth
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kneth commented Apr 26, 2024 •
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@vatsal-gadhiya-searce Sorry to hear. I'll reopen the issue and we need to investigate further. If you can share a stack trace, we will appreciate it.

@kneth kneth reopened this Apr 26, 2024
@Premshankar-Searce
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@kneth here repo realmDemo reproducible

  • on restarting app also crashing after 2 - 3 times
  • Attaching a video for steps to reproduce
test.mp4

@kraenhansen
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It seems to me we need to add a cleanup of connection state listeners, the same way we clean up other listeners passed to core, as part of the cleanup we do here:

realm-js/packages/realm/src/platform/react-native/index.ts

Lines 28 to 30 in 56112c7

// Clear the internal state to prevent crashes when reloading the app
binding.RealmCoordinator.clearAllCaches();
binding.App.clearCachedApps();

More specifically, we should expose a method on the SyncSession in Core (similiar to unregister_connection_change_callback) to remove all listeners from the underlying vector holding references to connection listener callbacks.

@altenorjr
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I'm finding this exact same issue on iOS since migrating to v12

@gfrancischini
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I'm still having this issue on android on 12.12.1.

You can use this repo to reproduce the issue: https://github.com/Spring-Global/realm-react-native-sample/tree/realm-crash-callback

This was referenced Jul 31, 2024
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@sync-by-unito sync-by-unito bot assigned gagik and unassigned kneth Jul 31, 2024
@danieltabacaru danieltabacaru linked a pull request Aug 7, 2024 that will close this issue
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@sync-by-unito Sync by Unito
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sync-by-unito bot commented Aug 19, 2024

➤ danieltabacaru commented:

[~kenneth.geisshirt@mongodb.com] Is anyone taking over from Gagik? Apparently the fix in realm/realm-core#7963 does not fully fix the crashes, so it'd be very helpful to get a repro.

@kneth
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kneth commented Aug 19, 2024

@danieltabacaru Maybe a combination of #6824 and the core fix?

@kraenhansen is probably the best one to take over.

@kraenhansen kraenhansen assigned kraenhansen and unassigned gagik Aug 19, 2024
@sync-by-unito Sync by Unito
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sync-by-unito bot commented Aug 19, 2024

➤ danieltabacaru commented:

[~kenneth.geisshirt@mongodb.com] Gagik tried that, but the race is still there.

@kraenhansen kraenhansen mentioned this issue Oct 1, 2024
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@jbreams jbreams

Labels
Encryption:Off Frequency:Always O-Community SDK-Use:Sync T-Bug
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8 participants
@jbreams @kneth @kraenhansen @altenorjr @gfrancischini @gagik @vatsal-gadhiya-searce @Premshankar-Searce