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kernel-headers-6.6.69_cube.pvm.host.005.x_gb85200d80fa2-1.x86_64.rpm 2026-05-07 1.5 MB
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kernel-6.6.69_cube.pvm.host.005.x_gb85200d80fa2-1.x86_64.rpm 2026-05-07 615.1 MB
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linux-headers-6.6.69-cube.pvm.host.005.x-gb85200d80fa2_6.6.69-gb85200d80fa2-1_amd64.deb 2026-05-07 9.4 MB
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linux-image-6.6.69-cube.pvm.host.005.x-gb85200d80fa2-dbg_6.6.69-gb85200d80fa2-1_amd64.deb 2026-05-07 678.7 MB
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linux-image-6.6.69-cube.pvm.host.005.x-gb85200d80fa2_6.6.69-gb85200d80fa2-1_amd64.deb 2026-05-07 59.4 MB
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linux-libc-dev_6.6.69-gb85200d80fa2-1_amd64.deb 2026-05-07 1.4 MB
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cube-sandbox-one-click-9c16021.tar.gz 2026-05-07 447.4 MB
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vmlinux-pvm 2026-05-07 52.3 MB
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README.md 2026-05-07 3.1 kB
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v0.2.0 source code.tar.gz 2026-05-07 7.9 MB
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v0.2.0 source code.zip 2026-05-07 9.0 MB
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Totals: 11 Items   1.9 GB 1

2026.05.07 Release v0.2.0

🌟 Major New Features

  • Web Management Console (Dashboard): A brand-new visual management UI with cluster overview, node and sandbox status, template management, and API key management; new CubeAPI web endpoints added to back the Dashboard.

  • PVM Deployment Mode: Powered by PVM (Pagetable-based Virtual Machine), ordinary cloud servers can now run CubeSandbox without bare-metal or nested virtualization. Tencent Cloud has deployed and validated PVM instances at scale in production, with improvements open-sourced in the OpenCloudOS kernel.

✨ Enhancements

  • Custom DNS for template creation: cubemastercli template gains a --dns flag, allowing a custom DNS server address to be specified when creating a template image.

🛠️ Critical Fixes

  • Fixed disk QoS (blk_qos) having no effect: Cubelet was reading the QoS annotation with the wrong key, silently ignoring IOPS/bandwidth limits; limits now apply as configured.

  • Fixed host-mount requests being silently dropped: CubeAPI wrote the annotation with key host-mount while CubeMaster read with hostdir-mount; the mismatch caused all host directory mounts to be ignored. Keys are now aligned and host-mount works correctly.

  • Fixed Cubelet mount namespace not receiving host mount events: Cubelet created its mount namespace in private mode, blocking propagation of subsequent host mounts; changed to slave mode so host mount events propagate one-way into the Cubelet namespace without affecting the host.

  • Fixed DeadGC permanently freezing paused sandboxes: scanDeadContainer issued a state() call to the shim while the sandbox held its mutex (during pausing/paused), causing a 5 s timeout, Cubelet marking the sandbox UNKNOWN, and CubeMaster giving up on resume. DeadGC now skips sandboxes in pausing/paused states.

🌐 Networking

  • Disabled virtio-net TAP offloads (TSO/UFO/CSUM): The hypervisor previously advertised hardware offload features to the guest; CHECKSUM_PARTIAL packets emitted by the guest could cause network errors or even disable tx-checksumming on the host NIC, affecting other tenants. The hypervisor no longer advertises these features; the guest handles checksumming and segmentation itself.

⚙️ Engineering Improvements

  • Cubelet CLI logging standardization: Migrated legacy myPrint output in cubecli sub-commands (cubebox, network, storage, volume, etc.) to structured logging.
  • Dead code removal: Removed the unused AppId field from CubeMaster affinityutil tests.

📚 Documentation Updates

  • New PVM Deployment guide (Chinese & English): full walkthrough covering PVM host kernel installation, GRUB configuration, module loading, and verification.
  • Quick Start updated: ordinary cloud servers can now be used via PVM — no bare-metal required.
  • Updated code-sandbox-quickstart example README (Chinese & English).
Source: README.md, updated 2026-05-07