3MB Memory Leak in KDrive Xfbdev

[Tiago Vignatti]

Hi, 

On Mon, Nov 01, 2010 at 11:45:57AM +0530, ext vrushali shinde wrote:
> Hello All,
> I need to fix memory leak issue urgently, any inputs regarding this would
> very useful to me.
> Thanks again.

Kdrive development is practically dead. We just have some few people working
on Xephyr backend and the other hw servers are due to be extinct. To
substitute kdrive + fbdev you can try Xorg + fbdev driver which should be all
the work you need.

 
> On Wed, Oct 27, 2010 at 4:33 PM, vrushali shinde <vrushali1201 at gmail.com>wrote:
> 
> > Hello All,
> > I need to launch XServer in a thread and terminate(release resources and
> > kill thread) XServer whenever required. To achieve this, I have created a
> > shared library of Kdrive-XServer. To start XServer I load the Xserver shared
> > lib, and launch the  Xfbdev server in a thread. For terminating Xserver, I
> > call    GiveUp (0); function, that releases the XServer resources, then I
> > dlclose on Xserver library. However, when I start and terminate XServer in
> > above way, there seems to happen 3MB of memory leak in every cycle. After
> > narrowing down it is seen that following 2 function calls increase the
> > memory to 3M at start and is not release at termination. The functions
> > are:   InitInput(argc, argv);  and InitAndStartDevices(); These are the
> > observation on ARM target board.
> > When above scenario is simulated on x86 machine, and Valgrind is run, it
> > does not show memory leaks in above mentioned functions, instead it shows
> > definite loss of 1,244 bytes of memory in KdInitOutput() and some other
> > minor definite losses.
> > I need to find out the 3M memory loss on target ARM board for
> > InitInput(argc, argv); and InitAndStartDevices(); functions. For this I did
> > try to release memory allocations in InitInput(), but no success. If I
> > comment   below lines from KdProcessArgument(), then the 3M chunk leak does
> > not happen however with this mouse and keyboard are not initialized and I
> > need to have keyboard and mouse. Can anyone help me out to find out the 3M
> > chunk and how to avoid it / release it?
> > <----------------------
> >  KdAddConfigKeyboard("keyboard,/dev/tty0");
> >     KdAddConfigPointer("mouse,/dev/input/mice");
> >     kdHasPointer = TRUE;
> >     kdHasKbd = TRUE;
> > ---------------------------->
> >
> > In addition to information below, I also get get following error when
> > closing VT "Cant deallocate console..." Can  this error contribute to some
> > or all of the 3M memory leak?
> > Please let me know if anyone has got any clue about this  or have faced
> > simlar issue.
> >
> > Thanks in advance,
> > Vrushali
> >

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             Tiago