3MB Memory Leak in KDrive Xfbdev

[vrushali shinde]

Hello All,
I am able to fix the 3M memory leak. 1M as explained already and the other
2M was because of my mistake -one extra thread that I had launched and was
not getting freed.
However, I still see few kBs ~132kB of memory leaked in every 2-3 iterations
of Init-Term Xserver. Note: In some iterations of Init-TermX there is 0
memory leak and some there is a chunk of 132kB.
Also, I am still stuck with failure(Device or resource busy) is ioctl(fd,
DISALLOCATE, vtno) in LinuxFini(). I doubt this for the 132kB leak. Can
anyone help me out with this? Note: This ioctl failure happens only on
target board (ARM) and not on x86.
Any inputs related to above would be very useful to me.
Thanks again,
Vrushali

On Tue, Nov 2, 2010 at 9:48 AM, vrushali shinde <vrushali1201 at gmail.com>wrote:

> Thanks a lot for your responses.
> BTW, I need a light weight server and KDrive being a stripped down version
> of Xorg, I am using KDrive.
> Also I did get some success in freeing 1M out of 3M memory that was leaked.
> This is  achieved by calling mieqFini() at termination of Xserver. This
> function internally calls FreeEventlist() which frees the 1M memory
> allocated in InitEventList().
> If anyone has any more idea of the memory leak in KDrive please let me
> know.
> Thanks again,
> Vrushali
>
>
> On Mon, Nov 1, 2010 at 7:32 PM, Tiago Vignatti <tiago.vignatti at nokia.com>wrote:
>
>> 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
>> > >
>>
>> > _______________________________________________
>> > xorg at lists.freedesktop.org: X.Org support
>> > Archives: http://lists.freedesktop.org/archives/xorg
>> > Info: http://lists.freedesktop.org/mailman/listinfo/xorg
>> > Your subscription address: tiago.vignatti at nokia.com
>>
>>             Tiago
>>
>
>
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