freebsd stable - Jan 2010 - Regression with txcsum/rxcsum on vge(4) drivers on 8.0-Release

Hi,

I've just upgraded on of my server from 7.2 to 8.0-Release and meet a
problem with the vge(4) drivers:
All my SCP transferts didn't works since this upgrade: they close, after a
random time, with "Corrupted MAC on input" message.
And Putty SSH tunnel closed with "Incorrect MAC received on packet".

I need to disable txcsum and rxcsum on the vge network card for solving this
problem.

Does anyone meet the same regression between 7.2 and 8.0 ?

Thanks,

Olivier

On Fri, Jan 15, 2010 at 10:32:42AM +0100, Olivier Cochard-Labb?
wrote:
> I've just upgraded on of my server from 7.2 to 8.0-Release and meet a
> problem with the vge(4) drivers:
> All my SCP transferts didn't works since this upgrade: they close,
after a
> random time, with "Corrupted MAC on input" message.
> And Putty SSH tunnel closed with "Incorrect MAC received on
packet".
> 
> I need to disable txcsum and rxcsum on the vge network card for solving
this
> problem.
> 
> Does anyone meet the same regression between 7.2 and 8.0 ?
PYUN Yong-Hyeon will respond to this I'm sure, but have you tried the
vge(4) code from RELENG_8 (known as 8.0-STABLE)?  I've seen some commits
to this driver since 8.0-RELEASE:

http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/vge/

-- 
| Jeremy Chadwick                                   jdc@parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |

--On Friday, January 15, 2010 10:32 AM +0100 Olivier Cochard-Labb? 
<olivier@cochard.me> wrote:
> Hi,
>
> I've just upgraded on of my server from 7.2 to 8.0-Release and meet a
> problem with the vge(4) drivers:
> All my SCP transferts didn't works since this upgrade: they close,
after a
> random time, with "Corrupted MAC on input" message.
> And Putty SSH tunnel closed with "Incorrect MAC received on
packet".
>
> I need to disable txcsum and rxcsum on the vge network card for solving
> this problem.
nfe(4) has complete deadlocks with checksums enabled under high  transmit 
(and possibly receive) loads.  It appears to be a regression from 7.2 as 
well.  We think it might have something to do with error recovery, but 
aren't sure if it's related to *just* nfe(4) or to HW CSums in general.
>
> Does anyone meet the same regression between 7.2 and 8.0 ?
>
> Thanks,
>
> Olivier
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On Fri, Jan 15, 2010 at 10:32:42AM +0100, Olivier Cochard-Labb?
wrote:
> Hi,
> 
> I've just upgraded on of my server from 7.2 to 8.0-Release and meet a
> problem with the vge(4) drivers:
> All my SCP transferts didn't works since this upgrade: they close,
after a
> random time, with "Corrupted MAC on input" message.
> And Putty SSH tunnel closed with "Incorrect MAC received on
packet".
> 
This message comes from scp when it detects it received corrupted
frames. This means sender transmitted corrupted frames or the host
receiving the frame broke it.
> I need to disable txcsum and rxcsum on the vge network card for solving
this
> problem.
> 
I think there is no vge(4) source changes between 7.2-RELEASE and
8.0-RELEASE so I guess other kernel changes in 8.0-RELEASE might
reveal driver bug. Would you try latest vge(4) in stable/8? There
were a lot code changes including important bug fixes.
> Does anyone meet the same regression between 7.2 and 8.0 ?
> 
> Thanks,
> 
> Olivier