Author: Nikolay Borisov

Continuing where we left off in the last installment, I turned my eye toward the microcode warnings in the VM. They seemed really strange because the machine now clearly had an updated microcode, and the host was correctly reporting the necessary flag, yet the VM wasn't able to recognize it. What was more puzzling was […]

Read More

Recently I was referred to a bug in one of our SLE kernels that manifested in the following warning being printed in dmesg, on a virtualized guest:     Subsequently it was reported that the same warning manifests on the host machine, where the guest VM was run. What those warnings actually mean […]

Read More