Re: [libtorrent] Crash when linking in Release

SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 454-5900

Ok, I solved the MSV... / MSV....d issue, but I still experience strange crashes.

This may not be directly related to libtorrent so this might be quite off-topic, but I you feel
open-hearted I would be very grateful for any advice...
Otherwise fell free to skip this message --

With debug info and no code omtim, I'm tracing my code and I get averly strange behaviour , like :

    x = "....";        // x is std::string

If I trace into xstring I cas see that x's _Ptr has the right value, yet if I "watch" x._Ptr I get a
"expression cannot be evaluated".

Then in another member function :

    return x.c_str( );

=> return 0x00000064 (of course, "invalid pointer")

x is here a std::string as I wasn't using Boost in the first place. It is implemented in "xtring"
file.
My compiler options are "multithread dll" and "using MFC in a shared lib" (but same result sith
"standards libs")
I only link (statically) to libtorent and to Boost automatically (no specific boost libs in my
options).

I haven't tested Boost auto_link option yet.

Any idea ?

----- Original Message ----- 
From: <mog...@gm...>
To: "General discussion about libtorrent" <lib...@li...>
Sent: Tuesday, October 10, 2006 5:16 PM
Subject: Re: [libtorrent] Crash when linking in Release

> Yep, I checked this : MD + MFC shared (or standard libs, makes no difference)
> Thanks Arvid for the link, I'll try to figure out what's wrong with my options.
>
> I have a lead actually : it's sometimes crashing in msvcr71d.dll, so that means something links
the
> MFC in debug, which isn't normal for a full release version, for a start.
>
> As to build boost libs and libtorrent in devstudio, I just didn't want to lose another day (or
more)
> setting up the projects, for what seems to be a simple (yet sneaky) error. I have already tried
and
> failed you see :)
> Thanks for the help so far,
>
> M.
>
>
>
> ----- Original Message ----- 
> From: "Florin Braghis" <fl...@li...>
> To: "General discussion about libtorrent" <lib...@li...>
> Sent: Tuesday, October 10, 2006 3:21 PM
> Subject: Re: [libtorrent] Crash when linking in Release
>
>
> > It sounds like you are linking with different versions of the C Runtime.
> > Make sure that your app and libtorrent are linked to the same Runtime Library.
> >
> > See Project Settings->C/C++ -> Code Generation -> Runtime Library
> >
> > Make sure you select Multithreaded DLL for your app AND libtorrent.
> >
> > Hope this helps,
> > Florin
> >
> >
> >
> > On 10/10/06, Arvid Norberg <ar...@cs...> wrote:
> > > On Tue, Oct 10, 2006 at 01:00:16PM +0200, mog...@gm... wrote:
> > > > Hi,
> > > > I'm experiencing big issues linking libtorrent in Release configuration.
> > > > I'm using Bjam to compile libtorrent (and boost) which I link with my own DLL using VC 7.1,
> and
> > > > everything works fine in Debug.
> > > >
> > > > But using the release torrent.lib (no matter which configuration I use for my own module), I
> get
> > > > unexpected crashes, no matter which option I compile my own code with (I got through all the
> > > > combinations yesterday, nothing seems to work).
> > >
> > > Are you sure you actually tested all of them? There are quite a few, see:
> > > http://boost.org/more/separate_compilation.html#abi
> > >
> > > > I get crashes like "Acess violation reading 0x0000003e" in different DLLs each time, so it
> looks
> > > > like serious build errors.
> > >
> > > It definitely sounds like a link incompatibility problem, or maybe a memory error. In case
> > > your code can be built on linux you could try running it though valgrind.
> > >
> > > > Any idea ? Any example of a VC 7.1 project that works in release ?
> > > > Many thanks in advances, I'm completely stuck with this problem :(
> > >
> > > Your best bet may be to build the boost libs and libtorrent in devstudio
> > > as well. At least as long as you build everything in the same project
> > > I think you'll get the same (link compatible) configuration.
> > >
> > > Alternatively you build your project with boost-build, then it
> > > will make sure the dependencies are built with compatible settings.
> > >
> > > --
> > > Arvid Norberg
> > >
> > > -------------------------------------------------------------------------
> > > Take Surveys. Earn Cash. Influence the Future of IT
> > > Join SourceForge.net's Techsay panel and you'll get the chance to share your
> > > opinions on IT & business topics through brief surveys -- and earn cash
> > > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> > > _______________________________________________
> > > Libtorrent-discuss mailing list
> > > Lib...@li...
> > > https://lists.sourceforge.net/lists/listinfo/libtorrent-discuss
> > >
> >
> > -------------------------------------------------------------------------
> > Take Surveys. Earn Cash. Influence the Future of IT
> > Join SourceForge.net's Techsay panel and you'll get the chance to share your
> > opinions on IT & business topics through brief surveys -- and earn cash
> > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> > _______________________________________________
> > Libtorrent-discuss mailing list
> > Lib...@li...
> > https://lists.sourceforge.net/lists/listinfo/libtorrent-discuss
> >
> >
>
>
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share your
> opinions on IT & business topics through brief surveys -- and earn cash
> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> _______________________________________________
> Libtorrent-discuss mailing list
> Lib...@li...
> https://lists.sourceforge.net/lists/listinfo/libtorrent-discuss
>
>