[Mono-dev] Leaky JIT while running MonoDevelop

Rodrigo Kumpera kumpera at gmail.com
Tue Aug 19 21:06:29 EDT 2008

On Tue, Aug 19, 2008 at 9:53 PM, Casey Marshall
<casey.s.marshall at gmail.com>wrote:

> On Tue, Aug 19, 2008 at 5:34 AM, Rodrigo Kumpera <kumpera at gmail.com>
> wrote:
> > Hi,
> >
> > I spent a few hours yesterday trying to reproduce your bug without
> success.
> > I have to say that from your valgrind result, the issue is closely
> related
> > to how
> > your perforce library interact with unmanaged code - it happens when you
> > pass a delegate to a pinvoke and somehow memory is leaked.
> >
> Yeah, I'm willing to believe I'm doing something wrong with the
> pointer-to-delegate handling, but it's also unfortunately not the
> whole story -- it still leaks memory if I disable that code.
> Valgrind's choosy about what it reports, I think, and I get different
> leak reports on different runs, so it's super-hard to tell what the
> underlying problem(s) is(/are).

You can keep posting then as it should eventually pinpoint the culprit.
One thing that helps is to enable valgrind support in the runtime. Just
install the -devel package from your distro and reconfigure mono.

> > Do you mind sharing the code and say what exactly your code is calling so
> I
> > can try to produce a repro? You can send it directly to me if you don't
> want
> > to send it to
> > a public mailing list.
> >
> We're probably going to release this as free software at some point,
> but it isn't ready yet. The low-level stuff that's actually the
> potential problem is a swig-generated wrapper around the Perforce C++
> API. I can send you a copy of this, to spare the list a large
> attachment.
> Sigh. Sorry about the noise.

You can send it at your discretion, specially if you manage to get a
reproducible test
that leaks memory,

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