Sky2 NIC Problem? - Was F12 NFS Failures
John Austin
ja at jaa.org.uk
Wed Nov 25 20:45:22 UTC 2009
On Wed, 2009-11-25 at 14:32 -0500, Bill Davidsen wrote:
> John Austin wrote:
> > Hi
> >
> > I have been fighting my problem with system freezes
> > described in the previous thread
> > I have added a 2nd NIC to the machine
> > and tested across an NFS mount using md2sum as before
> >
> > The machine now has
> >
> > An on board Marvell 8380 GB/s nic that uses the sky2 driver
> > A D-Link 530T GB/s nic that uses the skge driver
> >
> > I am using a Netgear GS108T GB/s switch to a Centos 5.4
> > nfs4 server.
> >
> > The machine is booted with only one NIC connected at a time
> >
> > D-link Marvell
> > F11 OK OK
> > F12 OK Fails
> >
> > Fails = Hardware button press required after "random" time during
> > read/checksum calc of 8GB file set
> >
> > My conclusion was that it must be the F12 sky2 driver not NFS
> >
> > I then down loaded the latest "Working" F11 kernel source rpm and
> > extracted sky2.c and sky2.h
> > and compiled these against the F12 kernel
> >
> > I thought this must fix the problem - but no!
> > The machine still freezes during the md5sum test
> >
> > I am rapidly running out of ideas !!
> >
> > Any help appreciated
> >
> I have no help, but I do have information. There have been reports of problems
> in the sky2 driver in the 2.6.32-rc tests. These may have nothing to do with
> your problem, or may lead to a patch which will appear in the Fedora kernels.
>
> If you want to compare the sources from the two kernels it might tell you
> something, but the issue may be in interrupt handling, not the driver itself. I
> saw something on a chat suggesting that selecting a different hardware source
> for the clock may solve network hang issues. I neither know what issues or why
> that would help, unless it's some time jumps backward issue still with us.
>
> You now have all the relevant info I do, whether it qualifies as "help" is up to
> you.
>
> --
> Bill Davidsen <davidsen at tmr.com>
> "We have more to fear from the bungling of the incompetent than from
> the machinations of the wicked." - from Slashdot
>
Hi Bill
Thanks for the feedback
I will look into your suggestions as soon as I can - but the wind is
blowing in the UK, and its reasonably warm - windsurfing weather !
John
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