ifun_proto: Timeout in HELLO state

[DavoudTeimouri]

Hi,

I got some host error on my vCenter from my hosts, the errors are like the below:

1. <ERROR> ifun_proto: Timeout in HELLO state  (2014-05-25T07:56:59.241Z cpu22:17039)
2. DISP_MGR-7088924-0: Could not query ifun proto for disps  (2014-05-26T21:46:50.073Z cpu14:17039)
3. Unable to reset GMI Session! (2014-05-26T23:02:30.696Z cpu39:17039)

Usually, VM will be hanged after the error is happened.

The errors are happening on all my hosts but there is a likeness 17039, it's repeating in all vmkernel log but I couldn't find the process.

All hosts are HP DL585G7 with AMD Opteron, BIOS is updatet and we are using ESXi 5.1 build 1312873.

Can anyone help me to clarify this issue?