>> And adding 'noibpb' kernel boot parameter helps, at least in my case.
However, according to: https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SpectreAndMeltdown/MitigationControls doing that, "Disabling these features removes mitigations for CVE-2017-5715 (aka Spectre / Variant 2).", which sort-of defeats what the microcode fix is for. However, the rest of the thread for Bug #1746418 does explain why my 18.04beta system is OK - it's running 4.15.0-xxx ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-5715 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1759920 Title: intel-microcode 3.20180312.0 causes lockup at login screen(w/ linux- image-4.13.0-37-generic) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/intel-microcode/+bug/1759920/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
