Re: Memory leak in the Driver

Hi Mr.Paul,

i have tried things which are in my reach,
and regarding buying the tools,
it is not in my hands as my top management has to take a decision on it
!!!!

actually, i cannot do either i.e., buying or hiring !!!
it's a task given to me so, probably i'll be trying myself or i'll quit
this task !!!
i am new to Windows CE Driver Devlopment and i am unable to complete my
task.

anyway thank you and thanks all for giving hints and suggestions !!!
sorry for disturbing you all and sorry for the trouble !!!

tell me what more info i can provide to you so that you can help me ??
and if it's not possible then i am sorry for giving you the trouble.

Thanks and Regards,
Neo

Paul G. Tobey [eMVP] wrote:
We are not going to be able to help you remotely. Given that you are new to
driver development, it's most likely that you are at fault. Since we've
given you a list of things that you can try and you've either tried them and
failed or been unwilling or unable to try them, the rest is going to be up
to you. You're either going to have to buy some useful tools to help with
this, learn enough on your own by trying things, or hire someone who can
actually take your code and your hardware and try to find the problem.

Paul T.

"Neo" <rksandilya@xxxxxxxxx> wrote in message
news:1169123630.033007.67860@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi All,

The QFE has no impact on the leak but one thing is sure, there is
memory leak when i issue a bulk transfer request using
"lpIssueBulkTransfer" this seems to be troubling me !!!
help neeeded ASAP

Thanks and Regards,
Neo

Neo wrote:
Hi Mr. Paul,

i understand your words and i feel pity about myself and my helpless
condition.
anyway i had already put prints when i am allocating and deallocating,
i am sure that all the memory that i am allocating in my driver is
released.

i see problem with one of this call "lpIssueBulkTransfer", if i
comment this in my code then the amount of memory leak drastically
comes down, i do not understand the mystery behind this !!!
help needed regarding this !!!

and Also thank you for mentioning about QFE, which i am unaware of, i
will try that and let the group know the result.

Thank you alll for the help !!!

Thanks and Regards,
Neo

Paul G. Tobey [eMVP] wrote:
Have you applied all of the Platform Builder QFEs?

Paul T.

"Neo" <rksandilya@xxxxxxxxx> wrote in message
news:1169060894.231009.199230@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi,

Also i want to know whether there are any known leaks in the platform
builder 5.0(WinCE5.0) Edition.
i am developing USB-Serial Driver which uses both USB related
functions
and also the Serial related Code.
are there any known memory leaks in other dll's which will used in
usb-serial driver development.

Thanks and Regards,
Neo

Neo wrote:
Hi Mr.Chris Tacke

As of now i cannot get that tool in for me.
Anyway it is since a week i was trying to find this leak !!!!
i can understand what u said and it's right too !!!

but i need to go thru the normal way of debugging and i am limited
by
my resources !!!
hoping for more support from you guys !!!

Thanks and Regards,
Neo

<ctacke/> wrote:
Platform Builder wasn't free either, yet you're using it. If your
time
is
worth anything, then the time saved by using a tool pays for
itself
quickly.
You've probably already spent more than a day looking for this
leak -
what
was that day worth?


--
Chris Tacke
OpenNETCF Consulting
Managed Code in the Embedded World
www.opennetcf.com
--


"Neo" <rksandilya@xxxxxxxxx> wrote in message
news:1169050226.359701.123650@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi Mr. Helge Kruse,

i cannot use ENTREK TOOLBOX, bcoz it is not free !!!
And creating counters is already i did but in my DRIVER i am
deallocating all the memory which i am allocating using
localallocand
localfree.

i donot see any free memory in my driver for USB Device.
i did put a print statement with the localalloc and localfree
calls
and the corresponding calls matches.
but still when my device is just opened and closes continuosly
for 10
times i loose 28KB of memory or so.

can you be able to shed more light on the ToolhelpAPI, i'll try
to
work
on that !!!

Thanks and Regards,
Neo

Helge Kruse wrote:
The ENTREK Toolbox with CodeSnitch is very useful to find
memory
leaks in
application.

If this tools does not meet your needs, you can use ToolhelpAPI
functions
to
do the work by yourelf. But ... it's work. And you will have to
examine
the
results of heap blocks. That's much more work.

Another approach is to create counters fore object
creation/deletion. So
you
can find the class with not deleted objects. This can help with
the
code
review. But this will be application even for driver.

/Helge




.

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