[ECOS] rattler PB
alix t
talix1603@yahoo.fr
Thu Dec 18 09:23:00 GMT 2003
We try to develop applications with goahead web server
and other network services on rattler card , but our
applications often crash.
So we want first validate ethernet and IP stacks.
I think to send very large packets is a good test to
validate ethernet stack.
alix
--- Gary Thomas <gary@mlbassoc.com> a écrit : > On
Wed, 2003-12-17 at 07:18, alix t wrote:
> > Hi,
> >
> > I'm using Rattler card with MPC8250.
> > I have build librairies with common ethernet
> package,
> > FreeBSD package and network package.
> > My application only calls function
> > init_all_network_interfaces() to start network.
> > When I ping the card with "ping -c 10000
> 192.168.0.2"
> > or "ping -c 10000 -s 1000 192.168.0.2" everything
> is
> > OK.
> > When I ping the card with "ping -c 10000 -s 13000
> > 192.168.0.2" to send packet with more bytes,
> following
> > messages appears:
> > "warning: eth_recv out of MBUFS" and after card
> has
> > strange behavior, ping often fail and BUS Error or
> > Illegal instuction appears.
> >
> > Does anyone have already seen such behavior with
> > Rattler?
>
> First of all, I doubt that this problem is unique to
> the Rattler.
> What I think you are seeing is the stack failing to
> handle very
> large IP packets (in particular, properly releasing
> the memory
> when they've been processed).
>
> As for the BUS Error and/or Illegal instruction, I
> tried this on
> a Rattler and did not observe them at all.
>
> Why are you trying to send such huge packets anyway?
>
> --
> Gary Thomas <gary@mlbassoc.com>
> MLB Associates
>
>
> --
> Before posting, please read the FAQ:
> http://sources.redhat.com/fom/ecos
> and search the list archive:
> http://sources.redhat.com/ml/ecos-discuss
>
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