Update [Jan 10, 2018 12:30pm PT]
Our team is still fighting Meltdown/Spectre bugs. Please follow our CEO's blogpost for more updates. In that blogpost, we’ve previously suggested migrating to CloudLinux 6 Hybrid kernel for those clients with CloudLinux 6 kernel who were facing issues on Xen PV. However, it looks like none of the CloudLinux kernels start on Xen PV (including CL6, CL6h and CL7 kernels). It is still not entirely clear what causes the issue and quite likely the bug might have been brought with the RHEL patches.
We apologise for the inconvenience. Our team is restless and we put all the efforts to deliver the fix ASAP. We encourage you to wait until the solution is found. As an alternative you can migrate from Xen PV to Xen HVM, we haven’t had any complaints about the last one.
Update [Jan 9, 2018 6:52am PT]
We have released to beta an updated and more stable CL6 kernel 2.6.32-896.16.1.lve1.4.50 which might help with issues like unstable work of disk quotas. However this kernel will not resolve the issues that affect users of CentOS/RHEL kernels neither the issues when VM in Xen hypervisor is unable to start (which seems like a problem of CVE fix itself).
yum clean all --enablerepo=cloudlinux-updates-testing && yum install kernel-2.6.32-896.16.1.lve1.4.50.el6 --enablerepo=cloudlinux-updates-testing
New updated CloudLinux 6 kernel version 2.6.32-896.16.1.lve1.4.49 with patches for Meldown and Spectre vulnerabilities is available for download from our production repository.
- added patches for Meltdown and Spectre attacks (CVE-2017-5753, CVE-2017-5715, CVE-2017-5754);
- KMODLVE-142: resync stats before returning IO usage;
- KMODLVE-140: fix panic with module loading;
- KMODLVE-139: add ability to set debug level in load time;
- KMODLVE-138: properly check lve_cgroup_kernel_open return value;
- KMODLVE-134: code cleanup for better test coverage;
- KMODLVE-131: improve failure IDs handling;
- KMODLVE-127: lvp_lve_move implementation.
To update a kernel, please run the following command:
yum clean all && yum update kernel-firmware && yum install kernel-2.6.32-896.16.1.lve1.4.49.el6