memory leak problem

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G

Guest

My computer is HP thin client and used windows xp embeded sp2.
My computer connects to LAN via an USB device (STACOM fast ethernet).
I found that the memory leak every time that the computer is
connecting to that device.
And it's no problem when I unpluged the usb.
How could I solve this problem?

Thank you
 
I'd say it is a driver problem (likely the driver of that STACOM device).
I am wondering how you were managed to find the memory leak? What tools you used and what debugging you performed?
 
I think so but do you have any idea to solve the problem?
Does it has any hot fix for embedded xp2 ? Or how could I replace
usb driver by SP1 ?
About the tool for tracking memory. I developed a small
program (agent) that can monitor resource on computer
(used the perfmon lib) And another one on other computer
to comunicate the agent and writed the resource values to
log file. But it doesn't work on SP1.

Wijit
 
Wijit,

I don't think you're going to be able to fix memory leak problems in a driver without having access to the source code of the
driver. I can only suggest you to contact the driver manufacturer (well, may be better to contact HP).

I am still not clear (and you may expect the same resistance from HP developers or support) as how exactly you managed to conclude
there is a memory leak occurs when you plug in a USB device. What parameters of the Perflib you're monitoring? Monitoring system
resources would be a bit erroneous in this case.
 
KM,

I think HP at here could not help or try to. But I haven't post the problem
to HP official web site yet.

About the monitoring tool, now my project get the problem about thin
clients could not run further a day. So we would like to find out the problem.
I use the property name 'memory/available byte' of perflib. I set my program
to get the value every 2 seconds and put them to a log file (at another PC).
After that, I can analyze the data by importing them to MS Excel.
I think the erroneous would not happen because I already tested the tool
and I did not found the memory leak (decrease) on the machines that did not
plug the USB.

Regards,
Wijit
 
Wijit,

Is your image based on SP1 or SP2? With SP2 there was a few USB memory related fixes issued.

If you suspect it is a 3rd party driver issue (STACOM?) you can try to reproduce it on XP Pro machine. Also check out that company
website, maybe they got a newer version of driver with the issue fixed.

Sorry, couldn't be of much help here.
 
KM,

My image baged on SP2.

I visited to SiteCom official webiste and download the latest version of
that devices. But it was the same one that I have and all Windows OS (XP, 9X,
2000, ME) use the save driver. I already posted the problem to SiteCom but no
responses back now.

Thank you for your advices, now we solve the problem by let users restart
thin client every day. It's so terrible for them but we have no choices.

Wijit
 
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