Re: Panic on NetBSD 4 STABLE, possibly wm related

[Mark Cullen <mark.r.cullen%gmail.com@localhost>]

Giles Lean wrote:
> Mark Cullen <mark.r.cullen%gmail.com@localhost> wrote:
>
> > I was just wondering if there are any known issues with the wm driver
> > on 4.0-STABLE, amd64, SMP?
>
> Well ... I have had 4.0_STABLE/i386 (not SMP) panic when I
> enabled jumbo frames on wm0.  I was making a bunch of hardware
> changes at the time and running with a GENERIC kernel for
> which I hadn't disabled ddb and awkward console access, so I
> don't have crash dumps or even stack traces.
>
> Because of all the other changes I was making I didn't know
> what was at fault, but the other changes are still present and
> running wm0 without jumbo frames my system is stable.  (My
> memory says the panics were in virtual memory code, not the wm
> driver itself, for whatever that's worth.)
>
> I plan to rebuild 4.0_STABLE and retest, but I've been as so
> often overrun by other projects and "if it ain't broke, don't
> fix it" inertia, so no promises. :-(
>
> Giles
Hi Giles,

Am I correct in thinking enabling jumbo frames is just a case of setting 
the MTU to 4000 odd? I was doing that. I actually disabled all of the 
hardware checksum stuff and set the MTU back to 1500 last night.

Hopefully that might fix it then :)

Thanks for your reply!

--
Mark Cullen <mark.r.cullen%gmail.com@localhost>