IsarError: Cannot open Environment: MdbxError (38): Function not implemented

[thorito]

Steps to Reproduce

I'm reporting a bug on Crashlytics for a OnePlus device, running Android 11

Fatal Exception: io.flutter.plugins.firebase.crashlytics.FlutterError: IsarError: Cannot open Environment: MdbxError (38): Function not implemented. Error thrown Error detected in runZonedGuarded.
#00 pc 0x81cc7b com.thorito.example (FirebaseCrashlytics.recordError [firebase_crashlytics.dart:119]) (BuildId: 63956a45f814b3c910d24405fe4de070)
#01 pc 0x869e77 com.thorito.example (main.<anonymous closure> [main.dart:56]) (BuildId: 63956a45f814b3c910d24405fe4de070)
#02 pc 0x869c07 com.thorito.example (runZonedGuarded.<anonymous closure> [zone.dart:1666]) (BuildId: 63956a45f814b3c910d24405fe4de070)
#03 pc 0x7b3eb7 com.thorito.example (_Zone._processUncaughtError [zone.dart:1081]) (BuildId: 63956a45f814b3c910d24405fe4de070)
#04 pc 0x26e0ef com.thorito.example (Future._propagateToListeners [zone.dart:1285]) (BuildId: 63956a45f814b3c910d24405fe4de070)
#05 pc 0x26e1e7 com.thorito.example (Future._completeError [future_impl.dart:674]) (BuildId: 63956a45f814b3c910d24405fe4de070)
#06 pc 0x79ccdb com.thorito.example (_SuspendState._handleException [async_patch.dart:425]) (BuildId: 63956a45f814b3c910d24405fe4de070)
        

Code sample

class IsarHelper {
  // Singleton pattern
  static IsarHelper? _isar;
  static Isar? _isarDb;

  static IsarHelper get instance => _isar ??= const IsarHelper._internal();

  Isar get isar => _isarDb!;

  const IsarHelper._internal();

  Future<void> init() async {
    if (_isarDb != null) return;

    final path = (await getApplicationDocumentsDirectory()).path;
    _isarDb = await Isar.open(
      [
        NotificationDbSchema,
        MqttLocalMessageSchema,
      ],
      directory: path,
    );
  }
}

Details

• Platform: OnePlus8Pro SDK: 11
• Flutter version: Channel stable, 3.24.5
• Isar version: ^3.1.8

Marca:OnePlus
Model: OnePlus8Pro
Orientation: Vertical
Available RAM: 1.97 GB
Available disk space: 2.86 GB

dependencies:
  
  isar:
    version: ^3.1.8
    hosted: https://pub.isar-community.dev/
  isar_flutter_libs:
    version: ^3.1.8
    hosted: https://pub.isar-community.dev/

---

• I searched for similar issues already
• I filled the details section with the exact device model and version
• I am able to provide a reproducible example

[ductranit]

I have the same crash report. Does anyone know how to workaround?

[erthink]

Most likely the Linux kernel and/or libc (aka Bionic) a target device didn't supports some syscall or feature required/used by libmdbx (the underlining key-value storage engine).

As the main developer/maintainer of libmdbx, I can help you with this and even make some up works:

1. Please use/try the latest stable release of libmdbx (v0.13.5 at the moment).
2. Provide exactly information about the Linux kernel and libc (Bionic) version from a target device.
   • Current versions of libmdbx require kernel version 4.x or later, but I can consider supporting older kernels if someone is interested enough to provide proper testing over a whole lifecycle.
   • I am not ready to specify the requirement for the minimum version of libc (Bionic) or the NDK level right now, since there were quite a lot of flaws, bugs and other glitches in all old versions, including in the toolchain. Nonetheless, I can provide Android support to a reasonable version depth if someone provides automated testing (a CI environment with a test suite).
3. Provide a debug logging from libmdbx, see mdbx_setup_debug().
4. Use a debug build of libmdbx (-DMDBX_DEBUG=1).
5. Be ready to use strace.