MSI issues w/ Athlon64 X2 3800+ and nForce 430?

Thu Apr 26 21:48:00 UTC 2007

On Sunday 22 April 2007 01:53:54 pm Jack Vogel wrote:
> On 4/21/07, John-Mark Gurney <gurney_j at resnet.uoregon.edu> wrote:
> > I finally upgraded to -current that supports MSI, and I appear to be
> > having issues w/ it.  I have two different ethernet cards that exhibit
> > issues on this system.  An msk PCIe based card, and a PCI em based card...
> >
> > With MSI the msk card produced regular:
> > msk1: watchdog timeout (missed Tx interrupts) -- recovering
> >
> > But was usable enough to push ~110meg/sec out.  When I was watching an
> > HD program streamed over http, there were regular hickups ever few
> > minutes, which I figured was due to the above messages (though none
> > appeared while watching), so I decided to switch back to my em based
> > card, and w/ MSI the card is practically useless.  I get:
> > Apr 21 22:13:09 carbon kernel: em0: watchdog timeout -- resetting
> > Apr 21 22:13:09 carbon kernel: em0: link state changed to DOWN
> > Apr 21 22:13:12 carbon kernel: em0: link state changed to UP
> > Apr 21 22:14:19 carbon kernel: em0: watchdog timeout -- resetting
> > Apr 21 22:14:19 carbon kernel: em0: link state changed to DOWN
> >
> > Which ends up making things a bit difficult to pass usable traffic over
> > the interface.
> 
> That NIC is too old to use with MSI, anything not PCI Express is not
> going to work reliably, even if at this point you arent stopped from
> trying to set it, with changes to the driver forthcoming you will be.

FWIW, I actually have used MSI with at least some PCI-X em(4) parts and it 
worked fine.

-- 
John Baldwin