RE: [Xen-users] Xen Installation without virtualization enabled in Bios

[Steve Hayward <steve.hayward@xxxxxxxxxxxxxxxx>]

I had a similar issue with one of my Centos 5.1 servers, which was fixed by 
running the command:

ethtool -K eth0 tx off

I added this to my rc.local file of each DomU.

Hope it works for you.

Steve



________________________________________
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
[xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of s@l 
[sal.bayat@xxxxxxxxxxxxxxxx]
Sent: Friday, July 18, 2008 3:50 PM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Xen Installation without virtualization enabled in Bios

Hi there,

Having a problem with Xen using RHEL 5.  Using a dell poweredge 1950 with
BCM5708 integrated NIC's.

07:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708
Gigabit Ethernet (rev 12)
        Subsystem: Dell Unknown device 01b3
        Control: I/O- Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop- ParErr+
Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (16000ns min), Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at f4000000 (64-bit, non-prefetchable) [size=32M]
        Capabilities: [40] PCI-X non-bridge device
                Command: DPERE- ERO- RBC=512 OST=8
                Status: Dev=07:00.0 64bit+ 133MHz+ SCD- USC- DC=simple
DMMRBC=512 DMOST=8 DMCRS=32 RSCEM- 266MHz- 533MHz-
        Capabilities: [48] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=1 PME-
        Capabilities: [50] Vital Product Data
        Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable-
                Address: 214082b132d03000  Data: 0b40



Basically, I have this strange issue where everything is good, I can create
my virtual guests, but there is some issue with network connectivity.  I can
get to the outside world no problem from the virtual host, but on the
guests, I can only ping the local machine, I cant ping or access anything on
the outside world.

At first I was taking a look at drivers and other network related problems,
when I noticed that the virtualization option in the bios cpu settings was
NOT enabled.  I enabled it, but im still having the same problem.

My question is: Would installing RHEL 5 and Xen while this option was NOT
enabled in the bios cause problems and perhaps cause this networking
connectivity issue im experiencing? Do I need to reinstall xen?

Info:

version: xen-3.0.3-64.el5_2.1
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