[Bug 48482] Star Wars Knights of the Old Republic randomly crashes after failed malloc

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48482

--- Comment #11 from Matteo Bruni <matteo.mystral at gmail.com> ---
(In reply to Federico Dossena from comment #8)
> (In reply to Zebediah Figura from comment #7)
> > Sounds likely the program is running out of virtual address space. There may
> > or may not be anything we can do.
> 
> Can you help me understand the issue? I noticed that the game's virtual
> memory is 3.2gb in size, but only a few hundred megabytes are actually used.
> Is this some kind of memory leak?

That suggests that something is allocating / reserving memory but not actually
using it. I don't know that it tells us anything in particular though.

If the VIRT value goes up every time you go through the door then yeah, it does
sound like a memory leak. It isn't immediately obvious what's leaking the
memory though (e.g. is it the game itself or a specific Wine component?)

(In reply to Federico Dossena from comment #9)
> Would an strace be useful to investigate this issue? I've been trying to use
> ltrace but it won't attach to the kotor process, only to wineserver.
> I want to intercept mallocs and frees to see if there's anything interesting

You could get a +heap trace, with additional channels (+wgl,+opengl ?) to
figure out what's the source of those allocations. It's going to be pretty huge
though.
Another thing that might shed some light is /proc/<pid>/maps.

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