On 07/02/2022 16.01, Alessio wrote:
Hello. I had a CentOS Stream 9 installation in a KVM VM. Today a "dnf upgrade" lead to an unusable system: dnf, rpm commands complain that "glibc cpu does not support x86-64-v2" or "CPU ISA level is lower than required". The updates leading to this state seem to be: python3 3.9.10-1, glibc 2.34-21, rpm 4.16.1.3-10
What happened?
glibc-2.34-20 includes a fix to more reliable detect CPU compatibility. See Bug https://bugzilla.redhat.com/show_bug.cgi?id=2040657
Does your CPU support x86-64-v2?
CentOS Stream for AMD and Intel 64-bit architectures requires at least x86-64-v2. See [1] for some background.
Is there an easy way to figure out if a CPU does support x86-64-v2? Something like a list of CPU families or a list of flags to check?
Regards, Simon