RE: [Xen-users] Very Strange network problem

["Ian Tobin" <itobin@xxxxxxxxxxxxx>]

Hi Chris,

Its very strange.  If you manage to fine anything let me know, im sure other 
people are having the same issue.  I can do some off list troubleshooting, my 
only issue is that the box is live in a data center so getting console access 
and rebooting is limited but i will test what i can.

Thanks

Ian


-----Original Message-----
From: chris [mailto:tknchris@xxxxxxxxx] 
Sent: 26 March 2010 16:46
To: Ian Tobin
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Very Strange network problem

I am experienced pretty much the same thing. I though it was possibly
my nic, but more likely the bridging itself. I have a spare machine
that's exhibiting the same symptoms so I will play with it a bit more
today and tomorrow and see if I can dig up anything else useful. I'd
be open to discussing off list if you want to work together
troubleshooting further.

- chris

On Fri, Mar 26, 2010 at 11:31 AM, Ian Tobin <itobin@xxxxxxxxxxxxx> wrote:
> Hi,
>
> Yes using bridged networking.  Strangely if i ping another host on the same 
> network (pinging router doesn't work) from the dom0 console and leave it 
> pinging the network stays up even after rebooting domUs.
>
> As soon as i stop the ping and reboot the DomU the network stays off but the 
> domU has network.  If I reboot the dom0 and reboot a domu say 5 times its 
> fine, anymore and it starts to drop until i start the ping or reboot the dom0.
>
> Its very odd, did you find a permanent fix? Obviously i can leave the ping 
> running but its certainly not a solution.
>
> Thanks
>
> Ian
>
>
>
> -----Original Message-----
> From: chris [mailto:tknchris@xxxxxxxxx]
> Sent: 26 March 2010 14:02
> To: Ian Tobin
> Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] Very Strange network problem
>
> Are you using bridged networking by chance? I had seen something like
> this on lenny where sometimes when I restarted or shutdown a domain
> the host networking would drop out for about 15-30 seconds and I
> always assumed it must be something related to the bridging.
>
> - chris
>
> On Fri, Mar 26, 2010 at 6:52 AM, Ian Tobin <itobin@xxxxxxxxxxxxx> wrote:
>> Hi,
>>
>>
>>
>> This is a weird one.
>>
>>
>>
>> Im, running Lenny with xen 3.4.2 on 2.6.31.6 pv_ops kernel.
>>
>>
>>
>> If I reboot my hvm guests so many times (7 i think) i then lose network
>> connectivity to the main host (dom0)
>>
>>
>>
>> All other DomUs are unaffected.  So far the only way i can get it back is to
>> reboot the dom0 but this isn't obviously not a fix.  Has anyone else had
>> this issue?
>>
>>
>>
>> Thanks
>>
>>
>>
>> Ian
>>
>>
>>
>> _______________________________________________
>> Xen-users mailing list
>> Xen-users@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-users
>>
>
>
>



_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users