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    Meltdown and Spectre Linux Kernel fixes

    I have installed the latest OpenVZ kernel on several of our remaining Proxmox 3.x hosts using the .deb packages they provide. If you're using ZFS, you'll also need to add those modules to the new kernel. I have made .debs for ZFS 0.7.5 under Proxmox 3.x that you're welcome to (PM me), if you're...
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    LXC container reboot fails - LXC becomes unusable

    Overview We're seeing a new issue since in-place upgrading Proxmox 4.x to Proxmox 5.x. For 2 different LXC containers after 1-3 reboots, the shutdown will fail. This occurs if triggered inside the OS (shutdown -r now) or from the hypervisor using "pct shutdown XXX --forceStop 1". Once it...
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    ZFS cannot destroy XXX: dataset is busy -- Cause is nfsd

    Summary There are a number of posts about being unable to destroy datasets that ZFS reports as busy even when lsof, fuser and cat /proc/*/mounts show no references. I have traced this to nfsd kernel processes which are launched when the container starts but aren't cleaned up when the container...