On 12/20/22 06:50, Bill Gee wrote: > The two latest kernels for CentOS7 are complete fails for running KVM > and QEMU guest machines. > > Version 3.10.0-1160.76.1 works correctly. Both 3.10.0-1160.80.1 and > 3.10.0-1160.81.1 will hang within seconds of launching any virtual > machine. It is a HARD hang. I have to pull the power cord from the > computer in order to regain control. > > Since 81.1 came out within the last few days, I assumed it would contain > a fix for this problem. It does not. > > Does anyone know when a kernel will be released that fixed this problem? > This is not true for all KVM guests. This kernel is actually installed and test booted before release on a cold iron, KVM VM, Virtual Box VM, and ESXi VM. It also passes our t_functional test suite: All C7 updates run through all these tests for all new rpms. So this problem has some other specific cause. Is this on a E5507 processor? What OS is the KVM host running. I assume this is x86_64 arch?