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  1. Corosync node out of sync with PVE 4.4

    Hi! Sorry but I've a question concerning the old PVE 4.4 version. I've a PVE cluster still using this version. The PVE cluster of 5 nodes. On the node one, corosync don't want to start. It say that the config is not in sync. corosync[28838]: [CMAP ] Received config version (7) is different...
  2. Meltdown and Spectre Linux Kernel fixes

    HP and Dell have removed their BIOS updates.
  3. Meltdown and Spectre Linux Kernel fixes

    Some news. The retpoline patches to mitigate Spectre 2 have been integrated in the 4.15 tree and back-ported in 4.9.77 & 4.14.14 kernels. https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.77 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.14 GCC is not upgraded yet for...
  4. Meltdown and Spectre Linux Kernel fixes

    Hi! Found a guy who tried Meltdown patch with Virtuozzo Container on a SSD HP blade. Nice result. ☹️ https://communities.intel.com/thread/121555?wapkw=meltdown
  5. Debian vs Ubuntu LTS

    No agree. For servers, Debian is rock solid not Ubuntu.
  6. Meltdown and Spectre Linux Kernel fixes

    Hi! Compatibility and stability problems with mitigation codes continue and rise. Spectre and Meltdown patches causing trouble as realistic attacks get closer https://arstechnica.com/gadgets/2018/01/spectre-and-meltdown-patches-causing-trouble-as-realistic-attacks-get-closer/ Meltdown/Spectre...
  7. Meltdown and Spectre Linux Kernel fixes

    Official: https://newsroom.intel.com/news/intel-security-issue-update-addressing-reboot-issues/
  8. Meltdown and Spectre Linux Kernel fixes

    Concern Haswell et Broadwell processors (all brand servers).
  9. Meltdown and Spectre Linux Kernel fixes

    Online talk of PTI not PCID. For PCID, I've not found yet any good bench of fix flaw impact. The article by arstechnica talks about this but does not provide very detailed proof of these statements...
  10. Meltdown and Spectre, special concerns for the virtualization industry

    A nice article from arstechnica. https://arstechnica.com/gadgets/2018/01/heres-how-and-why-the-spectre-and-meltdown-patches-will-hurt-performance/ Another one for OSX (look a syscall bench, crazy). https://reverse.put.as/2018/01/07/measuring-osx-meltdown-patches-performance/
  11. Meltdown and Spectre Linux Kernel fixes

    Impact with PTI on server. https://blog.online.net/2018/01/03/important-note-about-the-security-flaw-impacting-arm-intel-hardware/
  12. Meltdown and Spectre Linux Kernel fixes

    For Meltdown, not necessary but when Spectre 2 patched BIOS will be available, yes.
  13. Meltdown and Spectre Linux Kernel fixes

    Warning: problems with Meltdown patched BIOS on some Dell servers (instabilities). I've not more details.
  14. guest on kernel 4.14-12 fails to show NF conntrack

    If this can hep, works with 4.9.0-5 (Debian stretch + patch Meltdown) in KVM. # dmesg | grep "User page tables isolation" [ 0.000000] Kernel/User page tables isolation: enabled # /sbin/sysctl net.netfilter.nf_conntrack_count net.netfilter.nf_conntrack_count = 5 # /sbin/sysctl...
  15. Meltdown and Spectre Linux Kernel fixes

    Hi Fabian, This is not clear for me. Sorry, I'm not a KVM power user. Where do we need to type this, in PVE server on in the KVM VM? The story about ‘host’ is not clear too. Cheers,
  16. Automount not working, but manual mount from shell works fine. -Sequel-

    Hi! May be this will solve your problem. You need for each hardware server running PVE to modify this: In "/etc/apparmor.d/lxc/lxc-default-cgns" add these lines: mount fstype=nfs*, mount fstype=rpc_pipefs, In "/etc/apparmor.d/lxc/lxc-default-with-mounting "add this line: mount...
  17. Meltdown and Spectre Linux Kernel fixes

    More detail. Now it's public. Not nice at all as Spectre 2 is not mitigated in most softwares. Warning: kernel 4.4.0-108 is buggy. Still boot problem. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742323

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