CentOS

Today I installed the new 3.10.0-1160.81.1.el7.x86_64 kernel and checked it.
Same result, machine does not start ...

If i disable "mem_encrypt=on" , the system starts normal .

So it looks to me like it the "new" mem_encrypt is the show stopper.

Silvio

My Bugreport in the RedHat Bugtracker was marked as a duplicate to bug https://bugzilla.redhat.com/show_bug.cgi?id=2122158 . This bug shows problems with SME on AMD systems with kdump enabled and RedHat marked SME as tech preview in 7.9. The strange thing for me is, we have this enabled since instal...

If you look into

rpm -q --changelog kernel-3.10.0-1160.80.1.el7.x86_64

it is quit a lot output.

Silvio

On my system the .80 kernel is noticeably larger file, but the initramfs is about same: $ ls -lh /boot [jlehtone@el7 ~]# ls -lh /boot total 263M -rw-r--r--. 1 root root 151K Aug 10 19:25 config-3.10.0-1160.76.1.el7.x86_64 -rw-r--r--. 1 root root 151K Nov 8 17:53 config-3.10.0-1160.80.1.el7.x86_64 d...

That bugs entry says it only crashes when kvm is used so a database server would probably be safe so long as you're not also running VMs on it. I have no kvm running on any server we have .... The systems a plain minimal installs with only the software dependencies we need for our software and virt...

Is it good or bad, if AMD CPU from 2019 is so similar to old Intel CPU (from 2009?) that same bug affects both? For the record, the .80 did install and boot cleanly with Intel Core i7-6700. Or so it seems. (Undefined behaviour can be sneaky.) We had a 7700 system as a dev playground .... :-) The ke...

Is it good or bad, if AMD CPU from 2019 is so similar to old Intel CPU (from 2009?) that same bug affects both? For the record, the .80 did install and boot cleanly with Intel Core i7-6700. Or so it seems. (Undefined behaviour can be sneaky.) At the moment the only system with a Intel cpu is the da...

TrevorH wrote: ↑

2022/11/24 09:11:14

https://bugs.centos.org/view.php?id=18539

Thanks Trevor,

I have seen this and have opened an entry in the RedHat Bugtracker:
Hope the info helps someone.

Silvio

First try was to reinstall all kernels but it changed nothing. ... The version 3.10.0-1160.71.1 starts without any problems: Why all? If older kernels seem fine and only the latest fails, then why would you risk the working kernels? In worst case the reinstall could have ruined them all. You surely...

BShT wrote: ↑

2022/11/23 19:56:09

did you update just the kernel or the whole system?

The whole system is up2date

Silvio