pv_ops 2.6.32.12: network problem: Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet

pv_ops 2.6.32.12: network problem: Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet

[Gerry Reno]

I am using a pv_ops dom0 kernel 2.6.32.12 with xen 4.0.0-rc8.  My domU's 
use 2.6.31-14-server ubuntu.

When I try to ping another computer on the network from the domU I still 
received this error:
Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet

I thought this error was fixed somewhere around 2.6.32.10 but apparently 
it is still in 2.6.32.12.

How do I get around this problem?


-Gerry

Re: pv_ops 2.6.32.12: network problem: Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet

[Jeremy Fitzhardinge]

On 05/19/2010 02:09 PM, Gerry Reno wrote:
> I am using a pv_ops dom0 kernel 2.6.32.12 with xen 4.0.0-rc8.  My
> domU's use 2.6.31-14-server ubuntu.
>
> When I try to ping another computer on the network from the domU I
> still received this error:
> Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet
>
> I thought this error was fixed somewhere around 2.6.32.10 but
> apparently it is still in 2.6.32.12.
>
> How do I get around this problem?

I applied a patch to fix up a checksum bug in netback, but I realized I
hadn't applied it to stable-2.6.32.  Please try again (it will be
2.6.32.13) and tell me how it goes.

Thanks,
    J

Re: pv_ops 2.6.32.12: network problem: Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet

[Richie]

Is this problem (and fix) also related to the issue described here?  
http://wiki.xensource.com/xenwiki/XenFaq#head-4ce9767df34fe1c9cf4f85f7e07cb10110eae9b7

I posted about a checksum problem not to long ago in this xen-users 
thread 
http://lists.xensource.com/archives/html/xen-users/2010-05/msg00456.html

TIA for any info.


Jeremy Fitzhardinge wrote:
> On 05/19/2010 02:09 PM, Gerry Reno wrote:
>   
>> I am using a pv_ops dom0 kernel 2.6.32.12 with xen 4.0.0-rc8.  My
>> domU's use 2.6.31-14-server ubuntu.
>>
>> When I try to ping another computer on the network from the domU I
>> still received this error:
>> Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet
>>
>> I thought this error was fixed somewhere around 2.6.32.10 but
>> apparently it is still in 2.6.32.12.
>>
>> How do I get around this problem?
>>     
>
> I applied a patch to fix up a checksum bug in netback, but I realized I
> hadn't applied it to stable-2.6.32.  Please try again (it will be
> 2.6.32.13) and tell me how it goes.
>
> Thanks,
>     J
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>   

Re: pv_ops 2.6.32.12: network problem: Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet

[Jeremy Fitzhardinge]

On 05/19/2010 03:22 PM, Richie wrote:
> Is this problem (and fix) also related to the issue described here? 
> http://wiki.xensource.com/xenwiki/XenFaq#head-4ce9767df34fe1c9cf4f85f7e07cb10110eae9b7
>
>
> I posted about a checksum problem not to long ago in this xen-users
> thread
> http://lists.xensource.com/archives/html/xen-users/2010-05/msg00456.html

Yes, both should be fixed now.

    J

Re: pv_ops 2.6.32.12: network problem: Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet

[Gerry Reno]

On 05/19/2010 05:24 PM, Jeremy Fitzhardinge wrote:
> On 05/19/2010 02:09 PM, Gerry Reno wrote:
>    
>> I am using a pv_ops dom0 kernel 2.6.32.12 with xen 4.0.0-rc8.  My
>> domU's use 2.6.31-14-server ubuntu.
>>
>> When I try to ping another computer on the network from the domU I
>> still received this error:
>> Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet
>>
>> I thought this error was fixed somewhere around 2.6.32.10 but
>> apparently it is still in 2.6.32.12.
>>
>> How do I get around this problem?
>>      
> I applied a patch to fix up a checksum bug in netback, but I realized I
> hadn't applied it to stable-2.6.32.  Please try again (it will be
> 2.6.32.13) and tell me how it goes.
>
> Thanks,
>      J
>
>    
Jeremy,  that fixed it.  Thanks.

-Gerry

Re: pv_ops 2.6.32.12: network problem: Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet

[Pasi Kärkkäinen]

On Wed, May 19, 2010 at 02:24:09PM -0700, Jeremy Fitzhardinge wrote:
> On 05/19/2010 02:09 PM, Gerry Reno wrote:
> > I am using a pv_ops dom0 kernel 2.6.32.12 with xen 4.0.0-rc8.  My
> > domU's use 2.6.31-14-server ubuntu.
> >
> > When I try to ping another computer on the network from the domU I
> > still received this error:
> > Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet
> >
> > I thought this error was fixed somewhere around 2.6.32.10 but
> > apparently it is still in 2.6.32.12.
> >
> > How do I get around this problem?
> 
> I applied a patch to fix up a checksum bug in netback, but I realized I
> hadn't applied it to stable-2.6.32.  Please try again (it will be
> 2.6.32.13) and tell me how it goes.
> 

Is this fix missing from xen/master (aka xen/stable-2.6.31.x) aswell?

There was an user complaining about this bug on ##xen (CC) and he said he was using
the latest xen/master.. he grabbed the patch from xen/stable-2.6.32.x and applied
it to his 2.6.31 tree and it started to work OK after that.

-- Pasi

Re: pv_ops 2.6.32.12: network problem: Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet

[Jeremy Fitzhardinge]

On 05/27/2010 07:08 AM, Pasi Kärkkäinen wrote:
> On Wed, May 19, 2010 at 02:24:09PM -0700, Jeremy Fitzhardinge wrote:
>   
>> On 05/19/2010 02:09 PM, Gerry Reno wrote:
>>     
>>> I am using a pv_ops dom0 kernel 2.6.32.12 with xen 4.0.0-rc8.  My
>>> domU's use 2.6.31-14-server ubuntu.
>>>
>>> When I try to ping another computer on the network from the domU I
>>> still received this error:
>>> Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet
>>>
>>> I thought this error was fixed somewhere around 2.6.32.10 but
>>> apparently it is still in 2.6.32.12.
>>>
>>> How do I get around this problem?
>>>       
>> I applied a patch to fix up a checksum bug in netback, but I realized I
>> hadn't applied it to stable-2.6.32.  Please try again (it will be
>> 2.6.32.13) and tell me how it goes.
>>
>>     
> Is this fix missing from xen/master (aka xen/stable-2.6.31.x) aswell?
>   

Yeah, looks like it.  I'll push out a fix shortly.

    J