GC crash in .NET 9 UWP and WinUI 3 apps published with Native AOT on win-x86 #110607
Description
Description
I am migrating an UWP applicaiton to .NET 9 and found a problem with win-x86 Native AOT publish. The app works when it's either unpackaged or published using win-x64 runtime. But when it's published using win-x86 runtime, gc crashes on random instructions when trying to collect memory. Example stack trace from crash dump:
The thread tried to read from or write to a virtual address for which it does not have the appropriate access.
UwpDotnet.exe!WKS::gc_heap::mark_phase(int condemned_gen_number=5150738) C++
UwpDotnet.exe!WKS::gc_heap::gc1() C++
UwpDotnet.exe!WKS::gc_heap::garbage_collect(int n) C++
UwpDotnet.exe!WKS::GCHeap::GarbageCollectGeneration(unsigned int gen=0, gc_reason reason=reason_alloc_soh) C++
UwpDotnet.exe!WKS::gc_heap::trigger_gc_for_alloc(int gen_number=0, gc_reason gr=reason_alloc_soh, WKS::GCDebugSpinLock * msl=0x0082f010, bool loh_p=false, WKS::msl_take_state take_state=mt_try_budget) C++
[Inline Frame] UwpDotnet.exe!WKS::gc_heap::try_allocate_more_space(alloc_context *) C++
UwpDotnet.exe!WKS::gc_heap::allocate_more_space(alloc_context * acontext=0x01640358, unsigned int size=4012, unsigned int flags=0, int alloc_generation_number=0) C++
[Inline Frame] UwpDotnet.exe!WKS::gc_heap::allocate(unsigned int) C++
UwpDotnet.exe!WKS::GCHeap::Alloc(gc_alloc_context * context=0x0082f010, unsigned int size=4012, unsigned int flags=0) C++
UwpDotnet.exe!GcAllocInternal(MethodTable * pEEType=0x008f319c, unsigned int uFlags=0, unsigned int numElements=1000, Thread * pThread=0x01640358) C++
UwpDotnet.exe!RhpGcAlloc(MethodTable * pEEType=0x008f319c, unsigned int uFlags=0, unsigned int numElements=1000, PInvokeTransitionFrame * pTransitionFrame=0x0782f8dc) C++
UwpDotnet.exe!@RhpNewArray@8() Unknown
> UwpDotnet.exe!UwpDotnet_UwpDotnet_Program__RunLoad() Unknown
UwpDotnet.exe!S_P_CoreLib_System_Threading_ThreadStart__InvokeOpenStaticThunk() Unknown
UwpDotnet.exe!S_P_CoreLib_System_Threading_Thread__StartThread() Unknown
UwpDotnet.exe!S_P_CoreLib_System_Threading_Thread__ThreadEntryPoint() Unknown
ntdll.dll!77cc809e() Unknown
[Frames below may be incorrect and/or missing, no symbols loaded for ntdll.dll]
ntdll.dll!77cc806e() Unknown
The same problem is reproduced for both WinUI 3 and UWP apps, but not reproduces for console application.
Reproduction Steps
It's reproducible on both UWP and WinUI 3, but for simplicity specifying WinUI 3 here.
- Create WinUI 3 app on net9.0-windows10.0.26100.0
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>WinExe</OutputType>
<TargetFramework>net9.0-windows10.0.26100.0</TargetFramework>
<TargetPlatformMinVersion>10.0.17763.0</TargetPlatformMinVersion>
<RootNamespace>WinUIAppTest</RootNamespace>
<ApplicationManifest>app.manifest</ApplicationManifest>
<Platforms>x86;x64;arm64</Platforms>
<RuntimeIdentifiers>win-x86;win-x64;win-arm64</RuntimeIdentifiers>
<PublishProfile>win-$(Platform).pubxml</PublishProfile>
<UseWinUI>true</UseWinUI>
<EnableMsixTooling>true</EnableMsixTooling>
<Nullable>enable</Nullable>
<AppendRuntimeIdentifierToOutputPath>false</AppendRuntimeIdentifierToOutputPath>
<AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
<PackageCertificateKeyFile>../TemporaryKey.pfx</PackageCertificateKeyFile>
</PropertyGroup>
<ItemGroup>
<Content Include="Assets\SplashScreen.scale-200.png" />
<Content Include="Assets\LockScreenLogo.scale-200.png" />
<Content Include="Assets\Square150x150Logo.scale-200.png" />
<Content Include="Assets\Square44x44Logo.scale-200.png" />
<Content Include="Assets\Square44x44Logo.targetsize-24_altform-unplated.png" />
<Content Include="Assets\StoreLogo.png" />
<Content Include="Assets\Wide310x150Logo.scale-200.png" />
</ItemGroup>
<ItemGroup>
<Manifest Include="$(ApplicationManifest)" />
</ItemGroup>
<ItemGroup Condition="'$(DisableMsixProjectCapabilityAddedByProject)'!='true' and '$(EnableMsixTooling)'=='true'">
<ProjectCapability Include="Msix" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.26100.1742" />
<PackageReference Include="Microsoft.WindowsAppSDK" Version="1.6.240923002" />
</ItemGroup>
<PropertyGroup Condition="'$(DisableHasPackageAndPublishMenuAddedByProject)'!='true' and '$(EnableMsixTooling)'=='true'">
<HasPackageAndPublishMenu>true</HasPackageAndPublishMenu>
</PropertyGroup>
</Project>- Configure NativeAOT publish in win-x86.pubxml
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<PublishProtocol>FileSystem</PublishProtocol>
<Platform>x86</Platform>
<RuntimeIdentifier>win-x86</RuntimeIdentifier>
<PublishAot>true</PublishAot>
<SelfContained>true</SelfContained>
</PropertyGroup>
</Project>- Add some GC-intensive worker in App.xaml.cs
using System;
using System.Collections.Concurrent;
using System.Threading;
using Microsoft.UI.Xaml;
namespace WinUIAppTest;
public partial class App : Application
{
private Window? m_window;
public App()
{
InitializeComponent();
var t = new Thread(RunLoad);
t.Start();
}
protected override void OnLaunched(LaunchActivatedEventArgs args)
{
m_window = new MainWindow();
m_window.Activate();
}
public static void RunLoad()
{
var queue = new ConcurrentQueue<object>();
while (true)
{
var obj = new
{
Property1 = new int[1000]
};
if (queue.Count > 100000)
{
queue.TryDequeue(out _);
}
queue.Enqueue(obj);
if (Random.Shared.Next() % 1000 == 0)
{
Thread.Sleep(10);
}
}
}
}- Publish app
dotnet publish /p:Platform=x86 /p:GenerateAppxPackageOnBuild=true- Install msix package and run app
Expected behavior
App launches and runs.
Actual behavior
App crashes with stacktrace specified in descripiton.
Regression?
No, since x86 is available in .NET 9 only.
Known Workarounds
No response
Configuration
Dotnet info:
.NET SDK:
Version: 9.0.100
Commit: 59db016f11
Workload version: 9.0.100-manifests.4a280210
MSBuild version: 17.12.7+5b8665660
Runtime Environment:
OS Name: Windows
OS Version: 10.0.19045
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\9.0.100\
.NET workloads installed:
[android]
Installation Source: SDK 9.0.100, VS 17.12.35521.163
Manifest Version: 35.0.7/9.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100\microsoft.net.sdk.android\35.0.7\WorkloadManifest.json
Install Type: Msi
[aspire]
Installation Source: SDK 9.0.100
Manifest Version: 8.2.2/8.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\8.0.100\microsoft.net.sdk.aspire\8.2.2\WorkloadManifest.json
Install Type: Msi
[ios]
Installation Source: SDK 9.0.100, VS 17.12.35521.163
Manifest Version: 18.1.9163/9.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100\microsoft.net.sdk.ios\18.1.9163\WorkloadManifest.json
Install Type: Msi
[maccatalyst]
Installation Source: SDK 9.0.100, VS 17.12.35521.163
Manifest Version: 18.1.9163/9.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100\microsoft.net.sdk.maccatalyst\18.1.9163\WorkloadManifest.json
Install Type: Msi
[macos]
Installation Source: SDK 9.0.100
Manifest Version: 15.1.9163/9.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100\microsoft.net.sdk.macos\15.1.9163\WorkloadManifest.json
Install Type: Msi
[maui-windows]
Installation Source: SDK 9.0.100, VS 17.12.35521.163
Manifest Version: 9.0.0/9.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100\microsoft.net.sdk.maui\9.0.0\WorkloadManifest.json
Install Type: Msi
Configured to use loose manifests when installing new manifests.
Host:
Version: 9.0.0
Architecture: x64
Commit: 9d5a6a9aa4
.NET SDKs installed:
7.0.410 [C:\Program Files\dotnet\sdk]
9.0.100 [C:\Program Files\dotnet\sdk]
.NET runtimes installed:
Microsoft.AspNetCore.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.11 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.11 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.11 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 9.0.0 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Other architectures found:
x86 [C:\Program Files (x86)\dotnet]
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]
Environment variables:
Not set
global.json file:
Not found
Windows SDKs installed;
- 10.0.26100.0
- 10.0.22621.0
- 10.0.18362.0
- 10.0.17763.0
- 10.0.16299.0
Other information
Repo with reproduction examples: https://github.com/andrew-kulikov/native-aot-test