RE: [Xen-users] Problems with GPLPV network latency

["Ian Tobin" <itobin@xxxxxxxxxxxxx>]

This box is running a newer kernel than the rest.

The other are running 2.6.32.13 while this is running 2.6.32.14.  The
motherboards just have different chipsets but are AMD boards.



-----Original Message-----
From: Nick Couchman [mailto:Nick.Couchman@xxxxxxxxx] 
Sent: 23 June 2010 15:55
To: james.harper@xxxxxxxxxxxxxxxx; xen-users@xxxxxxxxxxxxxxxxxxx; Ian
Tobin
Subject: RE: [Xen-users] Problems with GPLPV network latency

And they're all running the same version of Xen and the dom0 kernel?

At this point, I'm just trying to highlight differences that may be
causing this.  If you're running identical kernels, I highly doubt the
bridge mode is to blame, since that's part of the dom0 kernel.  If the
kernels are different, than it could be the bridge module or the module
for the specific network chipset you're using.

When you say the MBs are slightly different, do you know what those
differences are?

-Nick

>>> On 2010/06/23 at 08:46, "Ian Tobin" <itobin@xxxxxxxxxxxxx> wrote: 
> Hi,
> 
> No I have 5 servers. This is the only one im facing this issue with, 
> all built the same though this motherboard is slightly different.  I 
> don't have any problems with Dom0 out to the internet and back, its 
> just the DomUs.  Im using bridged mode so could it be that the bridge 
> is at fault?
> 
> Its strange why only the Windows DomU will work with no network 
> driver, just the standard one.
> 
> Im running XEN 4.0 on 2.6.32.14 kernel, the chipset is AMD 740G / AMD
> SB700 (http://www.pcwb.co.uk/catalogue/item/A0477614?cidp=Froogle)
> 
> Thanks
> 
> Ian
> 
> 
> 
> -----Original Message-----
> From: Nick Couchman [mailto:Nick.Couchman@xxxxxxxxx]
> Sent: 23 June 2010 14:52
> To: james.harper@xxxxxxxxxxxxxxxx; xen-users@xxxxxxxxxxxxxxxxxxx; Ian 
> Tobin
> Subject: RE: [Xen-users] Problems with GPLPV network latency
> 
> Do you only have one Xen server running - the one you're having 
> problems with?  Or do you have multiple servers running, and all of 
> them are having problems?  O r multiple ones running and only this one

> is seeing this problem?
> 
> What's the chipset of the network cards in your physical machine?  
> Also, I'm sure you've already posted it, but remind me what versions 
> of Xen and the dom0 kernel you're running.
> 
> -Nick
> 
>>>> "Ian Tobin"  06/23/10 4:33 AM >>>
> Hi,
> 
> Ive built a linux DomU and am facing the same network issue, massive 
> delays then no network at all so its not limited to Windows DomUs.  It

> seems that the only DomU to work is one which doesn't have the XEN 
> drivers running.
> 
> Any ideas?
> 
> Thanks
> 
> Ian
> 
> -----Original Message-----
> From: James Harper [mailto:james.harper@xxxxxxxxxxxxxxxx]
> Sent: 09 June 2010 14:03
> To: Nick Couchman; xen-users@xxxxxxxxxxxxxxxxxxx; Ian Tobin
> Subject: RE: [Xen-users] Problems with GPLPV network latency
> 
>> James,
>> What config options adjust the timer in Xen?
>> 
> 
> It's timer_mode I think. I'm not sure what all the different values 
> mean though.
> 
> James
> 
> 
> 
> 
> 
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