Why ssh is slow on Red Hat Enterprise Linux 5.6 xen hypervisor with error: "virConfError:105 : /etc/xen/dommemstat:1: expecting a name"?

Solution Unverified - Updated -

Issue

  • The access via SSH is very slow and every-time with login attempt, it need to hit Enter key several times to get the prompt back.
  • By cleaning the memory cache fixes the problem temporarily.
  • Logs found in /var/log/message:
libvirtd: 13:02:02.228: error : virConfError:105 : /etc/xen/dommemstat:1: expecting a name 
libvirtd: 13:02:02.288: error : virConfError:105 : /etc/xen/dommemstat:1: expecting a name

Environment

  • Red Hat Enterprise Linux 5.6
  • xen kernel version: 2.6.18-238.9.1.el5xen

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