Re: [LUG] Cinelerra and Ubuntu Feisty

[Simon Waters <simon@xxxxxxxxxxxxxx>]

Afraid no specific knowledge on this one, but my steps to try to figure
out what went wrong would be something like ....

Anton Channing wrote:
> 
> I presume (core dumped) means some kind of
> error log has been produced.

core dump means literally a copy of memory was written to disk (or
historically other media - tape was a favourite at one point).

Except these days most systems don't actually record the core dump,
because it is huge, slow to write to disk, and was a routine source of
both security issues (passwords in memory and such like), and running
out of disk space.

My guess is it wasn't built for the right platform or right
dependencies. Sometimes it is worth trying "strace cinelerra" at a
command prompt and seeing if it dies on anything in particular but with
illegal instruction I doubt this will tell us much.

One can ensure that "core" files are written and use "gdb" but you don't
want to go there yet!

Although "illegal instruction" suggests also it might be compiled for
the wrong target CPU. As often multimedia applications are optimised for
particular processors, as some CPUs have instructions to help in
encoding/decoding mpeg, and if you can use them it is a massive
performance gain (one area the Gentoo folk should win out on, at least
if they know what they are doing and can afford good kit).

GCC can do those optimisations, but it can also put in alternative code
for processors that lack those features. Sometimes people manage to, or
deliberately omit the alternative code (makes the programs smaller and
faster).

Where did you get the deb files from, or is this just from Universe?

What does;

file `type cinelerra`

Produce as output?

Also post output of;

apt-cache show cinelerra

Or the low tech approach is to Google, as there is some discussion on
this out in Ubuntu land!

Or the Gentoo approach, it'll almost certainly work if you build it on
your own computer from source -- argh.....

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