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P1High-priority issues at the top of the work listcustomer: crowdAffects or could affect many people, though not necessarily a specific customer.dependency: dartDart team may need to help usdependency:dart-triagedTriaged by Dart teamengineflutter/engine related. See also e: labels.platform-iosiOS applications specificallyr: fixedIssue is closed as already fixed in a newer versiont: hot reloadReloading code during "flutter run"team-iosOwned by iOS platform teamtoolAffects the "flutter" command-line tool. See also t: labels.triaged-iosTriaged by iOS platform team
Description
Workarounds
Important
iOS 26 beta 1 breaks Flutter's debug mode on physical devices. If you have upgraded your device to 26 beta 1, please use the simulator until the issue is resolved, or downgrade to iOS 18.x.
Steps to reproduce
- Run flutter ios in debug mode with ios 18.4
- Notice the error ../../../flutter/third_party/dart/runtime/vm/virtual_memory_posix.cc: 428: error: mprotect failed: 13 (Permission denied)
- The build will fail. === Crash occurred when compiling unknown function in unoptimized JIT mode in unknown pass
Expected results
Fluter build should not fail when in debug mode.
Actual results
Flutter build fails on ios in debug mode with version 18.4
Code sample
This is related to the build and not the code.
Screenshots or Video
Screenshots / Video demonstration
[Upload media here]
Logs
Logs
../../../flutter/third_party/dart/runtime/vm/virtual_memory_posix.cc: 428: error: mprotect failed: 13 (Permission denied)version=3.7.0 (stable) (Wed Feb 5 04:53:58 2025 -0800) on "ios_arm64"pid=726, thread=259, isolate_group=vm-isolate(0x11ea52800), isolate=vm-isolate(0x11ebe5800)os=ios, arch=arm64, comp=no, sim=noisolate_instructions=10f8ab5a0, vm_instructions=10f8ab5a0fp=16eee4f50, sp=16eee4f30, pc=110302e84 pc 0x0000000110302e84 fp 0x000000016eee4f50 Dart_DumpNativeStackTrace+0x18 pc 0x000000010feb1428 fp 0x000000016eee4f70 dart::Assert::Fail(char const*, ...) const+0x30 pc 0x000000010ffac33c fp 0x000000016eee5420 dart::Code::FinalizeCode(dart::FlowGraphCompiler*, dart::compiler::Assembler*, dart::Code::PoolAttachment, bool, dart::CodeStatistics*)+0x82c pc 0x0000000110039cb0 fp 0x000000016eee5a30 dart::StubCode::Init()+0x320 pc 0x000000010fefc4f4 fp 0x000000016eee64e0 dart::Dart::DartInit(Dart_InitializeParams const*)+0x2b18 pc 0x00000001102e9754 fp 0x000000016eee6960 Dart_Initialize+0x60 pc 0x000000010fe71e24 fp 0x000000016eee6f30 flutter::DartVM::Create(flutter::Settings const&, fml::RefPtr<flutter::DartSnapshot const>, fml::RefPtr<flutter::DartSnapshot const>, std::_fl::shared_ptr<flutter::IsolateNameServer>)+0x1d64 pc 0x000000010fdcdf9c fp 0x000000016eee7690 flutter::Shell::Create(flutter::PlatformData const&, flutter::TaskRunners const&, flutter::Settings, std::_fl::function<std::_fl::unique_ptr<flutter::PlatformView, std::_fl::default_delete<flutter::PlatformView>> (flutter::Shell&)> const&, std::_fl::function<std::_fl::unique_ptr<flutter::Rasterizer, std::_fl::default_delete<flutter::Rasterizer>> (flutter::Shell&)> const&, bool)+0x310 pc 0x000000010f8ba564 fp 0x000000016eee8420 -[FlutterEngine createShell:libraryURI:initialRoute:]+0xa8c pc 0x000000010f8ece64 fp 0x000000016eee8480 -[FlutterViewController sharedSetupWithProject:initialRoute:]+0x198 pc 0x000000010f8ecca4 fp 0x000000016eee84b0 -[FlutterViewController awakeFromNib]+0x6c pc 0x000000018a580450 fp 0x000000016eee8980 <redacted>+0x6dc pc 0x000000018a5ef55c fp 0x000000016eee89f0 <redacted>+0xec pc 0x000000018a5ef368 fp 0x000000016eee8a20 <redacted>+0x50 pc 0x000000018a5eee68 fp 0x000000016eee8a80 <redacted>+0x8c pc 0x000000018a48d180 fp 0x000000016eee8ac0 <redacted>+0xa8 pc 0x000000018a48d980 fp 0x000000016eee8cd0 <redacted>+0x338 pc 0x000000018a4cebd8 fp 0x000000016eee8d10 <redacted>+0x84 pc 0x000000018a3e11e4 fp 0x000000016eee8d60 _UIScenePerformActionsWithLifecycleActionMask+0x70 pc 0x000000018a3e32c0 fp 0x000000016eee8e20 <redacted>+0xfc pc 0x000000018a3e2fb4 fp 0x000000016eee8e90 <redacted>+0xd4 pc 0x000000018a3e1cc8 fp 0x000000016eee8fa0 <redacted>+0x260 pc 0x000000018a3e19e8 fp 0x000000016eee9010 <redacted>+0xf4 pc 0x000000018a3e1594 fp 0x000000016eee9050 <redacted>+0x94 pc 0x000000018a28cc38 fp 0x000000016eee9150 <redacted>+0x2e0 pc 0x000000018a28c260 fp 0x000000016eee91c0 _UISceneSettingsDiffActionPerformChangesWithTransitionContextAndCompletion+0xe0 pc 0x000000018a3361d8 fp 0x000000016eee92c0 <redacted>+0x13c pc 0x000000018a335f64 fp 0x000000016eee9410 <redacted>+0x268 pc 0x000000018a3358b0 fp 0x000000016eee9580 <redacted>+0xd0 pc 0x000000018a2e13ac fp 0x000000016eee9640 <redacted>+0xf4 pc 0x000000018a2e0ed4 fp 0x000000016eee9720 <redacted>+0x2fc pc 0x000000018a2e0b6c fp 0x000000016eee97b0 <redacted>+0x120 pc 0x00000001a279330c fp 0x000000016eee98f0 <redacted>+0x120 pc 0x00000001a277f2d8 fp 0x000000016eee9920 <redacted>+0x44 pc 0x00000001a27998b8 fp 0x000000016eee99f0 <redacted>+0x1b4 pc 0x00000001a2798f2c fp 0x000000016eee9ab0 <redacted>+0x120 pc 0x00000001a2798c58 fp 0x000000016eee9af0 <redacted>+0xa8 pc 0x00000001a279913c fp 0x000000016eee9c40 <redacted>+0x1d8 pc 0x00000001051c5f80 fp 0x000000016eee9c50 _dispatch_client_callout+0x10 pc 0x00000001051b07fc fp 0x000000016eee9ca0 _dispatch_block_invoke_direct+0x128 pc 0x00000001a2795658 fp 0x000000016eee9cd0 <redacted>+0x34 pc 0x00000001a27955d8 fp 0x000000016eee9d60 <redacted>+0xf0 pc 0x00000001a27954b0 fp 0x000000016eee9d80 <redacted>+0x1c pc 0x0000000187884dc8 fp 0x000000016eee9d90 <redacted>+0x1c pc 0x0000000187884d5c fp 0x000000016eee9dc0 <redacted>+0xac pc 0x0000000187883ae0 fp 0x000000016eee9e20 <redacted>+0xe8 pc 0x0000000187882d20 fp 0x000000016eeeab90 <redacted>+0x348 pc 0x00000001878a77f0 fp 0x000000016eeeac10 CFRunLoopRunSpecific+0x23c pc 0x00000001d4afa190 fp 0x000000016eeeac70 GSEventRunModal+0xa8 pc 0x000000018a4ce158 fp 0x000000016eeeacf0 <redacted>+0x330 pc 0x000000018a4cc388 fp 0x000000016eeead80 UIApplicationMain+0x150 pc 0x000000018a927eb4 fp 0x000000016eeeadc0 <redacted>+0x265c pc 0x0000000102b0d26c fp 0x000000016eeeae10 $sSo21UIApplicationDelegateP5UIKitE4mainyyFZ+0x78 pc 0x0000000102b0d1e4 fp 0x000000016eeeae40 $s6Runner11AppDelegateC5$mainyyFZ+0x2c pc 0x0000000102b0d2e8 fp 0x000000016eeeae60 __debug_main_executable_dylib_entry_point+0x1c pc 0x00000001aee53a58 fp 0x000000016eeeb4c0 <redacted>+0x174c-- End of DumpStackTrace=== Crash occurred when compiling unknown function in unoptimized JIT mode in unknown pass=== Flow Graph not available```</details>### Flutter Doctor output<details open><summary>Doctor output</summary>```console[✓] Flutter (Channel stable, 3.29.0, on macOS 15.3.1 24D70 darwin-arm64, locale en-US)[!] Android toolchain - develop for Android devices (Android SDK version 35.0.0) ! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses[✓] Xcode - develop for iOS and macOS (Xcode 16.2)[✓] Chrome - develop for the web[✓] Android Studio (version 2024.2)[✓] IntelliJ IDEA Ultimate Edition (version 2024.1.1)[✓] VS Code (version 1.97.2)[✓] Connected device (5 available) ! Error: Browsing on the local area network for Nick’s iPhone. Ensure the device is unlocked and attached with a cable or associated with the same local area network as this Mac. The device must be opted into Developer Mode to connect wirelessly. (code -27)[✓] Network resources! Doctor found issues in 1 category.
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P1High-priority issues at the top of the work listcustomer: crowdAffects or could affect many people, though not necessarily a specific customer.dependency: dartDart team may need to help usdependency:dart-triagedTriaged by Dart teamengineflutter/engine related. See also e: labels.platform-iosiOS applications specificallyr: fixedIssue is closed as already fixed in a newer versiont: hot reloadReloading code during "flutter run"team-iosOwned by iOS platform teamtoolAffects the "flutter" command-line tool. See also t: labels.triaged-iosTriaged by iOS platform team
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Done