We experienced kernel panics on a few guest systems after the deployment of the IBC patches in eu-de AZ1 and stopped further deployments. VMs using older kernels from the early stage of Meltdown/Spectre fixes are affected. We also know that our PaaS services might be affected, because they might be using kernels of that time.
Please find more information about affected kernel versions and PaaS services in the tables below.
Affected Kernel Versions
|Distribution||Version||Affected (yes/no)||Introduced in kernel version||Fixed in kernel version|
|CentOS||7.x||same kernels as RHEL 7.x|
|Oracle Linux||7.x||same kernels as RHEL 7.x|
Affected PaaS Services
|PaaS Service||Affected (yes/no)||Fixed by|
|MRS||Yes||tbd, workaround here|
(Back to OTC Patching April & May document.)
Imprint: T-Systems International GmbH