Memory Leaks

[g***@googlemail.com]

I am trying to write a graphics engine which uses managed directx and
I have noticed it seems to leak memory like a sieve.

I am confused since managed directx is managed (clue in the name) so
shouldn't it free all its unmanaged resources when my application
terminates? I haven't personally allocated any unmanaged resources,
so when the directx managed classes are finalized they should dispose
and tidy up anything I missed, right?

Viewing the DX debug outputs gives me :

[2968] Direct3D9: (INFO) :MemFini!
[2968] Direct3D9: (WARN) :Memory still allocated! Alloc count = 97
...
[2968] Direct3D9: (WARN) :Total Memory Unfreed From Current Process =
698771 bytes

An after i run my engine a few hundred times in unit tests it busts
DirectX so nothing can use it until a reboot is performed...

What am I missing?

Thanks, G

[g***@googlemail.com]

I have added some logging into my code which seems to show that every
DX object I create is later freed and still there is the memory leak

Is there something else I need to free that I am missing?

I have freed all my devices, swap chains, index/vertex buffers and
textures.

[legalize+ (Richard [Microsoft Direct3D MVP])]

[Please do not mail me a copy of your followup]

Post by g***@googlemail.com
An after i run my engine a few hundred times in unit tests it busts
DirectX so nothing can use it until a reboot is performed...

There is nothing that should persist after your process has exited.
If your system is leaking resources after a process exits, you have a
driver bug.

[g***@googlemail.com]

Interesting, thanks for the reply. I will update me drivers and see
if that helps.

I think something is persisting because after a few hundred unit tests
I get an out of video memory exception.
After receiving this error I can no longer run any application that
uses directx.

[legalize+ (Richard [Microsoft Direct3D MVP])]

[Please do not mail me a copy of your followup]

Post by g***@googlemail.com
I think something is persisting because after a few hundred unit tests
I get an out of video memory exception.
After receiving this error I can no longer run any application that
uses directx.

Once a process exits, all its resources should be freed. If a process
exits and video memory is no longer available, and you must reboot,
that can only be the fault of the video driver, not the process.

[wee willie wonka]

Post by g***@googlemail.com
I am trying to write a graphics engine which uses managed directx and
I have noticed it seems to leak memory like a sieve.
I am confused since managed directx is managed (clue in the name) so
shouldn't it free all its unmanaged resources when my application
terminates? I haven't personally allocated any unmanaged resources,
so when the directx managed classes are finalized they should dispose
and tidy up anything I missed, right?
[2968] Direct3D9: (INFO) :MemFini!
[2968] Direct3D9: (WARN) :Memory still allocated! Alloc count = 97
....
[2968] Direct3D9: (WARN) :Total Memory Unfreed From Current Process =
698771 bytes
An after i run my engine a few hundred times in unit tests it busts
DirectX so nothing can use it until a reboot is performed...
What am I missing?
Thanks, G

[wee willie wonka]

Post by g***@googlemail.com
I am trying to write a graphics engine which uses managed directx and
I have noticed it seems to leak memory like a sieve.
I am confused since managed directx is managed (clue in the name) so
shouldn't it free all its unmanaged resources when my application
terminates? I haven't personally allocated any unmanaged resources,
so when the directx managed classes are finalized they should dispose
and tidy up anything I missed, right?
[2968] Direct3D9: (INFO) :MemFini!
[2968] Direct3D9: (WARN) :Memory still allocated! Alloc count = 97
....
[2968] Direct3D9: (WARN) :Total Memory Unfreed From Current Process =
698771 bytes
An after i run my engine a few hundred times in unit tests it busts
DirectX so nothing can use it until a reboot is performed...
What am I missing?
Thanks, G
jack beebe civil/environmental engineer iz back