Re: USER/GDI Objects leak with (XWin.exe) Cygwin/X X Server Verion 1.7.6, Build Date 2010-03-18

[Jon TURNEY <jon dot turney at dronecode dot org dot uk>]

On 06/04/2010 20:05, Amal Khailtash wrote:
> Click on Session menu and while the menu is open, move to Edit, then View, Bookmarks,
> Settings and Help and click outside to withdraw menu:
>
> Image Name    User Objects    GDI Objects
> XWin.exe        39                  79
>
> Click on any menu item and while the menu is open and move cursor to other menu items
> a number of (20) times:
>
> Image Name    User Objects    GDI Objects
> XWin.exe        241                 483
>
> Keep doing this and you will see the allocated objects keeps increasing and increasing and
> they are never released even if I close my Konsole window!

Thanks for the clear reproduction steps.   With these, I can reproduce this 
problem.

According to the GdiUsage tool this seems to be a GDI bitmap handle being 
leaked.   Unfortunately GdiUsage seems to have rusted a bit and doesn't 
produce useful backtraces (and may well not be able to backtrace a cygwin 
executable, anyhow) so locating exactly where the leak is coming from is going 
to be a bit tricky...

The one thing I notice is that other applications with menus don't seem to 
show this problem.  The konsole I was testing with is relatively recent and 
has menus with rounded corners, I wonder if that is somehow related to the 
problem?

--
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

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