Kernel panics with 7.2 and ANS

Jeremy Stoltz jstoltz at
Wed Nov 7 10:46:01 CST 2001

Well after 18 hours and about 500,000 web hits the server is still doing
fine with the new drivers. Not the best test but it is a big improvement. It
will take a week or so before I know if they are stable.


----- Original Message -----
From: "Michael E Brown" <michael_e_brown at>
To: "David Kinnvall" <david.kinnvall at>
Cc: <Linux-PowerEdge at>
Sent: Tuesday, November 06, 2001 8:15 AM
Subject: Re: Kernel panics with 7.2 and ANS

> Attached are the "Dell Official" Red Hat Linux 7.2 drivers for Intel and
> Broadcom network cards. They are compiled for 2.4.7-10.
> I will officially announce them when we finally get the links into our
> download page. Our NIC team was delayed by a procedural problem getting
> them posted, but they should show up in the next week or so. These are
> the official released drivers for 7.2 and if you have any problems with
> them please call Dell technical support.
> --
> Michael
> David Kinnvall wrote:
> >From: "Ard van Breemen" <ard at>
> >
> >>On Mon, Nov 05, 2001 at 10:45:59AM -0800, Jeremy Stoltz wrote:
> >>
> >>>I have several 1550's which I recently started using Intel's ANS
> >>>
> >and
> >
> >>>etherchannel. I was having problems with occasional kernel panics on
> >>>machines. Yesterday I upgraded the machines to use e100-1.6.22 and
> >>>iANS-1.4.27. I saw a kernel panic on most of the machines with in a few
> >>>hours of the upgrade.
> >>>
> >>>I'm using Redhat 7.2 with 2.4.7-10smp on these machines. Any
> >>>
> >on
> >
> >>>how to
> >>>resolve this issue?
> >>>
> >>Yes: use a serial console, and cut and paste the panics and the oopses,
> >>and send them to this list.
> >>Ehhh, also run them through ksymoops before sending them to this list.
> >>If the panic seemed to be caused by iANS, you have to contact intel.
> >>Anyway, by using iANS, your kernel is tainted, so support is less
> >>likely to come from kernel-hackers.
> >>But without the panics and the oopses, we cannot help you.
> >>
> >
> >To add one more, albeit neither this one with anything more
> >helpful such as panics and/or oopses, I ran into this one as
> >well. Crashes with iANS loaded, on any kernel except the
> >2.4.3 from Red Hat 7.1. Upgrades to later kernels for 7.1
> >or a major upgrade to Red Hat 7.2 with any of the kernels
> >available for that release all lead to the same result:
> >crash and burn. Remove the iANS driver and all is well.
> >
> >Temporary solution on my part: Run Red Hat 7.2 on my dev.
> >servers in-house without iANS, stay with Red Hat 7.1 and
> >2.4.3 on my production servers and wait. If I get the time
> >and hardware necessary I'll try to reproduce and record
> >some useful data next time around.
> >
> >In other words: It's a problem with iANS and kernel revs.
> >
> >This would be the time to bug Intel, I guess.
> >
> >Regards,
> >
> >David.
> >
> >_______________________________________________
> >Linux-PowerEdge mailing list
> >Linux-PowerEdge at
> >
> >

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