[Gllug] SIGSEGV error

[Richard Russell]

Hello Delioma,

I would suggest trying the following:

1) Consider using the newer version of titan2d - it may have fixed this bug,
and the authors may be happier supporting it!
2) Try running the software using some known good test data, ideally of a
similar size and 'nature' (I notice that the site you mention has some
sample data). If it always fails at the same point in the simulation, then
it's likely to be a combination of bad data and poor error detection on the
part of the program.
3) Recompile the original version of the software on the computer you are
currently using (though be sure to keep a backup)
4) Try running it on the computer you originally compiled it on
5) If the current computer and the original one are the same, do (3) anyway
- some libraries or other software may have changed in the meantime
6) Email the original authors with the version of Titan2d you are using,
linux (eg gubuntu X.Y) you are running, the current glibc version (I forget
how to discover this off the top of my head and am currently using a PC so
can't check), the gcc version (gcc -v) and the error message you get. If
possible, also include the versions of the same software that you had on the
original computer you compiled it on.

Cheers


On 29/08/2007, Delioma Oramas Dorta <delio79 at gmail.com> wrote:
>
> Thanks!
>
> I recently signed into the list in order to ask for guidance in respect of
> a problem I am getting while running a program in Linux. The program is used
> for simulating geological flows (such as landslides) over a digital
> representation of the terrain.
>
> The program was compiled apparently fine in Ubuntu version of Linux: the
> interface of the program opens, and I can key in the input data which is
> later on used by the program to make a simulation of the flow.
>
> But when I try to run the simulation, this will work only for 30 seconds
> (it stops at 30 seconds of simulated flow time) and it gives the error:
>
> p4_error: interrupt SIGSEGV: 11
>
> I have read a lot on Google and Forums and have found that it may be a
> segmentation fault which happens when the program is accessing memory which
> has not been allocated to it.... But to be honest I dont have a clue how to
> sort it out. I dont know anything of linux, but need to sort this out for
> running the simulation program.
>
> Does anyone know whether a total newby could sort this kind of thing out?
> Otherwise, is there any professional company or someone who does this kind
> of job?
>
> will look forward to any ideas!
>
> Many thanks
> --
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>
>
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