`PublishAot` + `EFOptimizeContext` fork bombs the system

[sylveon]

Bug description

When a project is set to use NAOT, EF Core will always run in an AOT-compatible mode, meaning you have to compile models and queries for your application to be able to F5 debug (otherwise EF Core throws when creating the DbContext or doing a query), and query interceptors use system-specific paths so they can't be committed. I attempted to use the Microsoft.EntityFrameworkCore.Tasks package to get that working, but ran into my system getting all its RAM eaten instead. I narrowed it down to these two properies at once. This happens during build (which also means merely opening VS with this project will fork bomb the system as Intellisense initializes).

Your code

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net10.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
	<EFOptimizeContext>true</EFOptimizeContext>
	<EFScaffoldModelStage>build</EFScaffoldModelStage>
	<EFPrecompileQueriesStage>build</EFPrecompileQueriesStage>
	<PublishAot>true</PublishAot>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="10.0.5" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Tasks" Version="10.0.5">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
    </PackageReference>
    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="10.0.5">
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
      <PrivateAssets>all</PrivateAssets>
    </PackageReference>
  </ItemGroup>

</Project>

using Microsoft.EntityFrameworkCore;

namespace sakilaConsole;

public partial class AppDbContext : DbContext
{
    public AppDbContext()
    {
    }

    public AppDbContext(DbContextOptions<AppDbContext> options)
        : base(options)
    {
    }

    public virtual DbSet<Entity> Entities { get; set; }

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) => optionsBuilder.UseSqlite("Data Source=db.sqlite");
}

using System;
using System.Collections.Generic;
using System.Text;

namespace sakilaConsole;

public class Entity
{
    public int Id { get; set; }
}

// See https://aka.ms/new-console-template for more information
Console.WriteLine("Hello, World!");

Stack traces

N/A

Verbose output

Build started at 5:55 PM...
<nothing else>

EF Core version

10.0.5

Database provider

Microsoft.EntityFrameworkCore.Sqlite

Target framework

.NET 10

Operating system

Windows 11

IDE

Visual Studio 2026