[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: NS Segmentation errors and disappearing acks
This seemed to work and I no longer get segmentation errors, although
the acks still disappear from the trace file from time to time. I still
feel that there is problem somewhere, however I'm not able to duplicate
the symptoms with any regularity. If I find something definite I will
post it.
The "scoreboard too large" error was apparently caused by connecting a
SACK source to a non-SACK sink.
Thnx,
art mena
Boeing
> ----------
> From: Rajesh Krishnan[SMTP:[email protected]]
> Reply To: [email protected]
> Sent: 18 May, 1998 9:46 AM
> To: [email protected]
> Cc: [email protected]; [email protected]
> Subject: Re: NS Segmentation errors and disappearing acks
>
> Hi,
>
> Tcl commenting works differently from Unix shells. This may
> be the source of the problem. The "COMMENTS" entry in the
> "Frequently made mistakes in Tcl" may be of help :
>
> http://www.teraform.com/~lvirden/tcl-faq/
>
> Regards,
> Rajesh
>
> > All
> >
> > I have some strange things happening with ns 2.1b2. NS fails with a
> > segmentation error when I remove a line of #'s from the tcl code.
> Even
> > weirder when I remove all but a few of the #'s in the line ns works
> fine
> > but does not record any acks in the trace file. When I add the #'s
> the
> > acks come back. I can trigger the error with any character in the
> file
> > so its not directly related to '#' s My tcl code is pretty simple
> as
> > I'm just recreating some of the simulations in a Fall/Floyd paper.
> In
> > another simulation in the same source code file I get the error
> > "scoreboard too large".
> >
> > I'm using ns-2.1b2 compiled with gcc 2.7.2.3 on linux 2.0.20
> > (slackware). I tried ns-2.1b3 but gcc complains about declarations
> for
> > random() and fails.
> >
> >
> >
> > Any ideas out there about what's causing these
> > errors?
> >
> >
> > Thnx,
> >
> > art mena
> > Boeing
>