[CentOS] Strange issue with CentOS7 on XenServer

Thu Sep 21 14:44:22 UTC 2017
Todor Petkov <petkovptodor at gmail.com>

Hello,

I stumbled upon a strange problem with CentOS upgrade on XenServer
environment, and I would like to ask if someone has this issue as
well:

XenServer 7.1, the VM is CentOS7, with kernel
3.10.0-514.26.2.el7.x86_64 running in PV mode
When I upgrade the kernel (running with yum update kernel), after
reboot in the VM console it says "dracut-pre-udev[212]: modprobe:
ERROR: could not insert 'dm-mod': Cannot allocate memory" and after a
while it drops to dracut shell

If I boot from from an old kernel with the updated kexec-tools/dracut,
it's fine.

Anyone experiencing this issue?

Regards,