Xen users - Nov 2008 - PV 0.9.12-pre3 with Multiple NICs/Bridges, Hard Lock - Update - ODBC connector not compatible?

I have done some more testing and the problem is not related to having
two NICs, I think it is something to do with traffic going across the
LAN. Using WAN or LAN bridge is OK, using WAN or LAN MAC is OK but as
soon as Lan IP comes up I get a couple of pings before the VM hard
locks.

The only service running on the LAN is an SQL Server 2005 Native Client
ODBC connection to another system on the same LAN network. How do I go
about debugging/fixing this?


Thanks,

Rob
-----Original Message-----
From: xen-users-bounces@lists.xensource.com
[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Robert
Dunkley
Sent: 18 November 2008 15:27
To: xen-users@lists.xensource.com
Subject: [Xen-users] Xen PV 0.9.12-pre3 with Multiple NICs/Bridges, Hard
Lock

Hi Everyone,

I''m using a Xen 3.30 on Centos Dom0 setup with two bridges, one for WAN
and One for LAN (Both are on separate physical NICs within Dom0). 

I can use a 2 NIC setup with Server 2003 Pure HVM fine. A single NIC
setup works fine with the Pre3 drivers but as soon as I add the second
NIC the system hard locks within a few seconds of networking coming up.
Both NICs looks fine from device manager and Network connections.

Any ideas how I can get this working with 2 NICs. Is a different version
of the GPL PV driver more likely to work?

Thanks in advance,

Rob

The SAQ Group

Registered Office: 18 Chapel Street, Petersfield, Hampshire GU32 3DZ
SEMTEC Limited Trading as SAQ is Registered in England & Wales
Company Number: 06481952

 

http://www.saqnet.co.uk AS29219

SAQ Group Delivers high quality, honestly priced communication and I.T.
services to UK Business.

DSL : Domains : Email : Hosting : CoLo : Servers : Racks : Transit :
Backups : Managed Networks : Remote Support.

Find us in http://www.thebestof.co.uk/petersfield


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Could you post your Xen domU configuration?  Also, are there any Events
in the Event Log upon reboot that indicate why it hard locks?  Any
output in "xm dmesg" or "xm log" that may be related?

-Nick


-----Original Message-----
From: Robert Dunkley <Robert@saq.co.uk>
To: xen-users@lists.xensource.com
Subject: [Xen-users] PV 0.9.12-pre3 with Multiple NICs/Bridges, Hard
Lock - Update - ODBC connector not compatible?
Date: Tue, 18 Nov 2008 15:57:57 -0000


I have done some more testing and the problem is not related to having
two NICs, I think it is something to do with traffic going across the
LAN. Using WAN or LAN bridge is OK, using WAN or LAN MAC is OK but as
soon as Lan IP comes up I get a couple of pings before the VM hard
locks.

The only service running on the LAN is an SQL Server 2005 Native Client
ODBC connection to another system on the same LAN network. How do I go
about debugging/fixing this?


Thanks,

Rob
-----Original Message-----
From: xen-users-bounces@lists.xensource.com
[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Robert
Dunkley
Sent: 18 November 2008 15:27
To: xen-users@lists.xensource.com
Subject: [Xen-users] Xen PV 0.9.12-pre3 with Multiple NICs/Bridges, Hard
Lock

Hi Everyone,

I''m using a Xen 3.30 on Centos Dom0 setup with two bridges, one for WAN
and One for LAN (Both are on separate physical NICs within Dom0). 

I can use a 2 NIC setup with Server 2003 Pure HVM fine. A single NIC
setup works fine with the Pre3 drivers but as soon as I add the second
NIC the system hard locks within a few seconds of networking coming up.
Both NICs looks fine from device manager and Network connections.

Any ideas how I can get this working with 2 NICs. Is a different version
of the GPL PV driver more likely to work?

Thanks in advance,

Rob

The SAQ Group

Registered Office: 18 Chapel Street, Petersfield, Hampshire GU32 3DZ
SEMTEC Limited Trading as SAQ is Registered in England & Wales
Company Number: 06481952

 

http://www.saqnet.co.uk AS29219

SAQ Group Delivers high quality, honestly priced communication and I.T.
services to UK Business.

DSL : Domains : Email : Hosting : CoLo : Servers : Racks : Transit :
Backups : Managed Networks : Remote Support.

Find us in http://www.thebestof.co.uk/petersfield


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Hi Nick,

 

The event viewer on the VM shows nothing much at all. There are a couple of
XenVBD errors about internal data structures but these do not happen on most
boots.

 

Xm dmesg logs nothing, xm log shows debug information on creation of the VM but
nothing after that.

 

Here is the VM config using only the LAN bridge:

 

name = 'dns2'

maxmem = 768

memory = 768

vcpus = 1

cpus = ["7"]

builder = 'hvm'

kernel = '/usr/lib/xen/boot/hvmloader'

pae = 1

acpi = 1

apic = 1

hpet = 0

hap = 1

on_poweroff = 'destroy'

on_reboot = 'restart'

on_crash = 'restart'

device_model = '/usr/lib64/xen/bin/qemu-dm.drbd'

sdl = 0

vnc = 1

vncdisplay = 9

vncpasswd = ‘pass'

disk = [
'phy:/dev/drbd9,hda,w','file:/mnt/xenmedia/w2k3.iso,hdc:cdrom,r'
]

boot = 'd'

vif = [ 'mac=00:16:3e:44:d3:aa,bridge=lanbr' ]

serial = 'pty'

 

Any ideas on what might be causing this?

 

Thanks,

 

Rob

 

 

From: Nick Couchman [mailto:Nick.Couchman@seakr.com] 
Sent: 18 November 2008 19:34
To: Robert Dunkley
Cc: xen-users@lists.xensource.com
Subject: Re: [Xen-users] PV 0.9.12-pre3 with Multiple NICs/Bridges,Hard Lock -
Update - ODBC connector not compatible?

 

Could you post your Xen domU configuration?  Also, are there any Events in the
Event Log upon reboot that indicate why it hard locks?  Any output in "xm
dmesg" or "xm log" that may be related?

-Nick


-----Original Message-----
From: Robert Dunkley <Robert@saq.co.uk
<mailto:Robert%20Dunkley%20%3cRobert@saq.co.uk%3e> >
To: xen-users@lists.xensource.com
Subject: [Xen-users] PV 0.9.12-pre3 with Multiple NICs/Bridges, Hard Lock -
Update - ODBC connector not compatible?
Date: Tue, 18 Nov 2008 15:57:57 -0000

 
I have done some more testing and the problem is not related to having
two NICs, I think it is something to do with traffic going across the
LAN. Using WAN or LAN bridge is OK, using WAN or LAN MAC is OK but as
soon as Lan IP comes up I get a couple of pings before the VM hard
locks.
 
The only service running on the LAN is an SQL Server 2005 Native Client
ODBC connection to another system on the same LAN network. How do I go
about debugging/fixing this?
 
 
Thanks,
 
Rob
-----Original Message-----
From: xen-users-bounces@lists.xensource.com
[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Robert
Dunkley
Sent: 18 November 2008 15:27
To: xen-users@lists.xensource.com
Subject: [Xen-users] Xen PV 0.9.12-pre3 with Multiple NICs/Bridges, Hard
Lock
 
Hi Everyone,
 
I'm using a Xen 3.30 on Centos Dom0 setup with two bridges, one for WAN
and One for LAN (Both are on separate physical NICs within Dom0). 
 
I can use a 2 NIC setup with Server 2003 Pure HVM fine. A single NIC
setup works fine with the Pre3 drivers but as soon as I add the second
NIC the system hard locks within a few seconds of networking coming up.
Both NICs looks fine from device manager and Network connections.
 
Any ideas how I can get this working with 2 NICs. Is a different version
of the GPL PV driver more likely to work?
 
Thanks in advance,
 
Rob
 
The SAQ Group
 
Registered Office: 18 Chapel Street, Petersfield, Hampshire GU32 3DZ
SEMTEC Limited Trading as SAQ is Registered in England & Wales
Company Number: 06481952
 
 
 
http://www.saqnet.co.uk AS29219
 
SAQ Group Delivers high quality, honestly priced communication and I.T.
services to UK Business.
 
DSL : Domains : Email : Hosting : CoLo : Servers : Racks : Transit :
Backups : Managed Networks : Remote Support.
 
Find us in http://www.thebestof.co.uk/petersfield
 
 
_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users
 
 
________________________________


This e-mail may contain confidential and privileged material for the sole use of
the intended recipient. If this email is not intended for you, or you are not
responsible for the delivery of this message to the intended recipient, please
note that this message may contain SEAKR Engineering (SEAKR)
Privileged/Proprietary Information. In such a case, you are strictly prohibited
from downloading, photocopying, distributing or otherwise using this message,
its contents or attachments in any way. If you have received this message in
error, please notify us immediately by replying to this e-mail and delete the
message from your mailbox. Information contained in this message that does not
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> Hi Nick,
> 
> The event viewer on the VM shows nothing much at all. There are a
couple
> of XenVBD errors about internal data structures but these do not
happen on
> most boots.
> 
If that''s the error message I think it is then it shouldn''t
happen at
all. Can you post the event log entry for a few of those (or just one if
they are all the same)?

Thanks

James

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

> I have done some more testing and the problem is not related to having
> two NICs, I think it is something to do with traffic going across the
> LAN. Using WAN or LAN bridge is OK, using WAN or LAN MAC is OK but as
> soon as Lan IP comes up I get a couple of pings before the VM hard
> locks.
> 
> The only service running on the LAN is an SQL Server 2005 Native
Client
> ODBC connection to another system on the same LAN network. How do I go
> about debugging/fixing this?
> 
Can you please test with 0.9.12-pre4 and tell me if the problem still
exists?

Thanks

James


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

Hi James,

The problem still exists, the same two VBD errors occur. It seems the
XenVbd errors also occur if the system is not booted with /gplpv too
although the system is stable when not using /gplpv in boot.ini.

I will test to see if /gplpv is stable without any NICs.

Thanks,

Rob

-----Original Message-----
From: James Harper [mailto:james.harper@bendigoit.com.au] 
Sent: 19 November 2008 22:39
To: Robert Dunkley; xen-users@lists.xensource.com
Subject: RE: [Xen-users] PV 0.9.12-pre3 with Multiple NICs/Bridges,Hard
Lock - Update - ODBC connector not compatible?
> I have done some more testing and the problem is not related to having
> two NICs, I think it is something to do with traffic going across the
> LAN. Using WAN or LAN bridge is OK, using WAN or LAN MAC is OK but as
> soon as Lan IP comes up I get a couple of pings before the VM hard
> locks.
> 
> The only service running on the LAN is an SQL Server 2005 Native
Client
> ODBC connection to another system on the same LAN network. How do I go
> about debugging/fixing this?
> 
Can you please test with 0.9.12-pre4 and tell me if the problem still
exists?

Thanks

James


The SAQ Group

Registered Office: 18 Chapel Street, Petersfield, Hampshire GU32 3DZ
SEMTEC Limited Trading as SAQ is Registered in England & Wales
Company Number: 06481952

 

http://www.saqnet.co.uk AS29219

SAQ Group Delivers high quality, honestly priced communication and I.T. services
to UK Business.

DSL : Domains : Email : Hosting : CoLo : Servers : Racks : Transit : Backups :
Managed Networks : Remote Support.

Find us in http://www.thebestof.co.uk/petersfield


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

> Hi James,
> 
> The problem still exists, the same two VBD errors occur. It seems the
> XenVbd errors also occur if the system is not booted with /gplpv too
> although the system is stable when not using /gplpv in boot.ini.
> 
> I will test to see if /gplpv is stable without any NICs.
> 
Can you please run debugview from sysinternals and do ''xm sysrq
<domain>
C'' in dom0? It should dump some kernel logging info. Paste that into an
email to me.

Thanks

James

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