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	Replies: 9 - Pages: 1 - Last Post: 02-Aug-2012 20:57 Last Post By: xaver	Threads: [ Previous \| Next ]

balabhai

Posts: 8
Registered: 27/09/09

Satellite U500-18P memory leak
Posted: 02-May-2012 18:22

I have Satellite U500 18P PSU8CE with preinstalled Windows7 Home Premium x64 with 4GB RAM. When I start it in Safe mode then memory does not leaked. When I start it in Normal mode then nonpaged kernel memory grows up to 3011 MB (~ after 4 days running).

I have downloaded poolmon.exe and found growing pool tag: 'AmlH' (ACPI AMLI Pooltags). In Safe mode this pool has only 1 allocation unit. In Normal Mode ~ every 73 sec it is allocated new unit. Size of each unit is 524288 bytes.

Then I have downloaded and installed the "Windows Performance Toolkit" and run xperf.exe and xperfview.exe according to

http://blogs.msdn.com/b/maartenb/archive/2010/12/07/debugging-pool-leaks-with-x-perf.aspx.

xperfview shows stack for memory leak as

Root/ntkrnlmp.exe! KxStartSystemThread/ntkrnlmp.exe! PspSystemThreadStartup/ACPI.sys! ACPIWorkerThread/ACPI.sys! RestartCtxtPassive/ACPI.sys! InsertReadyQueue/ACPI.sys!RunContext/ACPI.sys!ParseTerm/ACPI.sys! Return/ACPI.sys!DupObjData/ACPI.sys!NewObjData/ACPI.sys!HeapAlloc/ACPI.sys! NewHeap/ntkrnlmp.exe!ExAllocatePoolWithTag

I have restored windows to factory state but memory leak still present.

Akuma

Posts: 4,190
Registered: 12/08/08

Re: Satellite U500-18P memory leak
Posted: 07-May-2012 04:34

in response to: balabhai

Looks like it may be a driver or OS problem.

Do you have Win7 Service Pack 1 installed?

balabhai

Posts: 8
Registered: 27/09/09

Re: Satellite U500-18P memory leak
Posted: 07-May-2012 08:32

in response to: Akuma

I had Service Pack 1 installed (and all other relevant updates from Microsoft, Intel and Toshiba) but memory leaked anyway.

Tonny

Posts: 3,225
Registered: 21/09/09

Re: Satellite U500-18P memory leak
Posted: 07-May-2012 09:21

in response to: balabhai

Memory leaks are a common error in programming.
memory leak, occurs when a computer program consumes memory but is unable to release it back to the operating system.

In your case it would be necessary to know what application or process which is running in the background do that…
This can be really long process… you would need to install an fresh system and would need to check the memory leak after each installation of driver or other application…

balabhai

Posts: 8
Registered: 27/09/09

Re: Satellite U500-18P memory leak
Posted: 07-May-2012 13:07

in response to: Tonny

I did just you wrote. I use my notebook not often and when I have understood that memory leaked then I have reinstalled OS but memory leaked even with factory state of my notebook.

I see many posts in this forum about U500. Does memory leaked only on my U500??

Tonny

Posts: 3,225
Registered: 21/09/09

Re: Satellite U500-18P memory leak
Posted: 07-May-2012 13:22

in response to: balabhai

I see many posts in this forum about U500. Does memory leaked only on my U500?

Memory leak does not depend on hardware but software… I used the search option in this forum but didn’t find any other threads about memory leak.

balabhai

Posts: 8
Registered: 27/09/09

Re: Satellite U500-18P memory leak
Posted: 09-May-2012 22:30

in response to: Tonny

I have installed clean (i.e. by Microsoft, not preinstalled by Toshiba) Windows7 and the memory leak disappeared. I tried to uninstall all Toshiba specific software (and drivers) from preinstalled version but not yet successful: memory still leaked.

And I tried to install all Toshiba drivers over clean Microsoft version and unsuccessful too: memory does not leaked. It is very difficult to find the cause of memory leak because I can not compare this two version simultaneously.

To reload another version I need boot my notebook from third OS and rename some directories like Windows, Program Files, Users ...

How can I extract preinstalled Toshiba software (and drivers) from my factory installation (HDDRecovery dir's *.SWM files?) to try it on clean Windows7?

Tonny

Posts: 3,225
Registered: 21/09/09

Re: Satellite U500-18P memory leak
Posted: 10-May-2012 09:07

in response to: balabhai

How can I extract preinstalled Toshiba software (and drivers) from my factory installation (HDDRecovery dir's *.SWM files?) to try it on clean Windows7?

From my experience this is not possible… you can download all drivers and toshiba tools from the Toshiba driver page… these are the same apps like included in the image.

balabhai

Posts: 8
Registered: 27/09/09

Re: Satellite U500-18P memory leak
Posted: 02-Aug-2012 19:58

in response to: balabhai

Hello, All.

I have found the cause of the memory leak. When I modify installed features for "TOSHIBA Value Added Package" and uncheck "Flash Cards" then memory not leaked anymore . To uncheck this feature I need also uncheck all other unchechable features ("Utilites", "PC Diagnostic Tool", "Power Saver", "Button Support" and "Zooming Utility").

I have tested two versions - original russian 1.2.26.64 and the last english 1.2.32.64 with same effects.

xaver

Posts: 2,106
Registered: 10/02/05

Re: Satellite U500-18P memory leak
Posted: 02-Aug-2012 20:57

in response to: balabhai

Thanks for the feedback.
Conclusion is: don’t play too much with original Toshiba stuff.

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