Re: [Vala] Memory corruption&coredump on Exit in my first vala program spekle

[Alexander Kojevnikov <alexander kojevnikov com>]

On 29 August 2010 11:22, Niels Mayer <nielsmayer gmail com> wrote:
> Anybody have any ideas on
> http://code.google.com/p/spekle/wiki/EvidenceOfMemoryCorruptionOnExit
> (warning contains large images,
> http://spekle.googlecode.com/svn/wiki/evidence-of-memory-corruption-on-exit.txt
>  for error text only).
>
> issue: http://code.google.com/p/spekle/issues/detail?id=1
>
> Summary: after successfully writing a spectrogram image in my first
> Vala programming http://spekle.googlecode.com/ (a displayless-version
> of
> Alexander Kojevnikov's http://www.spek-project.org/ ) I get the
> following error, despite not explicitly calling free() out of my Vala
> code:
> [...]

You can try running spekle under valgrind [1]. After testing it on a
flac file I already see that spek_spectrogram_put_pixel() is used with
wrong arguments causing an out-of-bounds memory write.

On a side note, feel free to submit patches adding batch support to
Spek, there's even an open issue for it [2].

Cheers,
Alex

[1] http://valgrind.org/
[2] http://code.google.com/p/spek/issues/detail?id=6