RE: [Xen-users] Problem with Broadcom Corporation NetXtreme II BCM5708bnx2

[rem@xxxxxxx]

Hi all

I finally found the way to solve my problem. I install my windows virtual
machine using the guide on

 http://wiki.xensource.com/xenwiki/HowToXenWindowsOnCentOS5

The last time I did the installation using the "Virtual Machine Manager" but
now I do it using virt-install and when ping to other machines the time is
good.

Maybe a bug in VMM? I don't know but now with virt-install I can use without
problems my virtual machine.

Thanks a lot for all your help

Roberto




-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Jefferson Ogata
Sent: Viernes, 22 de Agosto de 2008 11:22 p.m.
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Problem with Broadcom Corporation NetXtreme II
BCM5708bnx2

[Re-sending; used wrong source address.]

rem@xxxxxxx wrote:
> I have a Dell PowerEdge 1950 with two NICs Broadcom NetXtreme II BCM5708
> 1000Base-T. I installed CentOS 5.1 and Xen 3.0.3 (RPM). One of my
> virtual machines has Windows 2003 Server. In this virtual machine my
> NICs appears like "Realtek RTL8139 Family PCI Fast Ethernet NIC". The
> problem is that when I ping to other machines sometimes the reply time
> value is very high:
>
> C:>  ping 10.1.1.1
> Reply from 10.1.1.1: bytes=32 time<1ms TTL=127
> Reply from 10.1.1.1: bytes=32 time<1ms TTL=127
> Reply from 10.1.1.1: bytes=32 time<1ms TTL=127
> Reply from 10.1.1.1: bytes=32 time=-29815ms TTL=127
> Reply from 10.1.1.1: bytes=32 time<1ms TTL=127
> Reply from 10.1.1.1: bytes=32 time<1ms TTL=127
> Reply from 10.1.1.1: bytes=32 time=-298341ms TTL=127
> Reply from 10.1.1.1: bytes=32 time<1ms TTL=127
> Reply from 10.1.1.1: bytes=32 time=29382ms TTL=127
> Reply from 10.1.1.1: bytes=32 time<1ms TTL=127
>
> It important to indicate that the "real" time is good ( approximately
> between 1 and 2 seconds ). The problem is some applications used this
> value to monitor some servers and send alarms when time value is high.
> How you can see some time the reply value is negative.
>
> The problem is only with virtual Windows machine.
>
> What can I do? Some idea?

Sounds like you have a clock problem to me.

Have you tried disabling acpi in the VM definition?

There's also something called timer_mode, but good luck finding any
documentation about it (like a lot of other Xen stuff).

--
Jefferson Ogata : Internetworker, Antibozo

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