smolvm

v1.5.1 Feature

This release adds 2 notable features for engineering teams evaluating rollout.

Published 15d Virtualization

✓ No known CVEs patched

✓ No known CVEs patched in this version

Topics

containers crun libkrun microvm rust virtual-machine

Summary

AI summary

Fix prevents a 5‑second stall when agent-rootfs is read‑only.

Type	Severity	Summary	CVE
Feature	Low	Preserves sparseness when copying disk templates during extraction. Preserves sparseness when copying disk templates during extraction. Source: llm_adapter@2026-07-15 Confidence: high	—
Performance	Medium	Improves cuBLASLt descriptor fast path, achieving 2x speedup on loopback. Improves cuBLASLt descriptor fast path, achieving 2x speedup on loopback. Source: llm_adapter@2026-07-15 Confidence: high	—
Bugfix	Medium	Fixes 5‑second stall when agent-rootfs is read‑only. Fixes 5‑second stall when agent-rootfs is read‑only. Source: llm_adapter@2026-07-15 Confidence: high	—

Full changelog

Notify the Homebrew tap to bump its formula on each release by @BinSquare in https://github.com/smol-machines/smolvm/pull/588
cuda: pipelined async forwarding, CUDA graph capture/replay, and cross-connection ordering — vLLM runs end-to-end with CUDA graphs by @BinSquare in https://github.com/smol-machines/smolvm/pull/589
Official Arch Linux pacman repository by @BinSquare in https://github.com/smol-machines/smolvm/pull/591
fix(boot): don't stall 5s when agent-rootfs is read-only by @BinSquare in https://github.com/smol-machines/smolvm/pull/592
Display init commands progress by @mart-e in https://github.com/smol-machines/smolvm/pull/573
cuda: cuBLASLt descriptor fast path — eager decode 2x on loopback, in-VM eager beats native by @BinSquare in https://github.com/smol-machines/smolvm/pull/593
Preserve sparseness when copying disk templates during extraction by @BinSquare in https://github.com/smol-machines/smolvm/pull/599
release: smolvm 1.5.1 by @BinSquare in https://github.com/smol-machines/smolvm/pull/594

@mart-e made their first contribution in https://github.com/smol-machines/smolvm/pull/573

Full Changelog: https://github.com/smol-machines/smolvm/compare/v1.5.0...v1.5.1

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About smolvm

Tool to build & run portable, lightweight, self-contained virtual machines.