Regression with txcsum/rxcsum on vge(4) drivers on 8.0-Release

Michael Loftis mloftis at wgops.com
Fri Jan 15 17:24:36 UTC 2010



--On Friday, January 15, 2010 10:32 AM +0100 Olivier Cochard-Labbé 
<olivier at 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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