JavaScript SDK: Segfault on catalog.getModel() on Linux (WSL2)

[pdebruin]

Description

catalog.getModel() causes a segmentation fault on Linux (Ubuntu 24.04 under WSL2). The native core library loads and initializes successfully, and downloadAndRegisterEps() completes without issue, but calling catalog.getModel('qwen2.5-0.5b') crashes with a segfault.

Repro steps

1. On Ubuntu 24.04 (WSL2, Windows 11):

mkdir test && cd test
npm init -y
# Remove foundry-local-sdk-winml from optionalDependencies if present (blocks Linux binary download)
npm install foundry-local-sdk

2. Run this minimal script:

import { FoundryLocalManager } from 'foundry-local-sdk';

const manager = FoundryLocalManager.create({ appName: 'test', logLevel: 'trace' });
await manager.downloadAndRegisterEps(() => {}); // OK
console.log('EPs done');

const model = await manager.catalog.getModel('qwen2.5-0.5b'); // Segfault here

3. Output:

EPs done
Getting model...
Segmentation fault (core dumped)

Environment

• OS: Ubuntu 24.04.2 LTS on WSL2 (Windows 11)
• Hardware: Intel i7-11370H, NVIDIA RTX A2000 Laptop (4 GB), 16 GB RAM
• Node.js: v22.22.1
• foundry-local-sdk: 1.0.0
• CUDA: 12.8 (driver 573.71)

Notes

• The native library Microsoft.AI.Foundry.Local.Core.so loads successfully via koffi
• FoundryLocalManager.create() and downloadAndRegisterEps() both work
• Crash only occurs when querying the catalog
• The foundry-local-sdk-winml optional dependency must be removed from package.json for the Linux native binaries to download (the install script skips when winml is detected)

[samuel100]

@pdebruin thanks for raising an issue... I was able to repro the bug. Will investigate further and report back.