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Thanks to the answer in this thread I found out that my Intel GPU driver is causing memory leak (4.1GB of non-paged pool). I tried to install various versions of driver and this problem comes back every install of drivers. On Windows 10 default driver non-paged pool is 110MB, but when I start installing driver it comes back to 4.1GB (screen goes black for a second during install and it's 4.1GB non-paged pool again). I tried installing driver from Snappy Driver Installer and from official Intel website (Beta 15.40.26.4474, 15.40.25.4463, 15.40.22.4424 i 15.40.10.4300). The result was the exact same every single time.
I was reinstalling the driver in this way:
1. Went to Safe mode
2. Uninstalled driver using Display Driver Uninstaller (from guru3d.com)
3. Restarted to Win 10 normal mode (every time i restarted the non paged pool was about 110MB)
4. Started installation of driver
5. During installation screen went black and non-paged pool was 4.1GB again.
Any thoughts how to fix this?
PS. If this may have something in common with what happens, I reduced my system partition size to 250GB (via Partition Master, because built-in system tool didn't let me reduce this partition as much as I wanted) and soon after graphic driver crashed (screen even didn't go black IIRC, just information about crash showed up). I also updated my drivers via Snappy Driver Installer, but I don't remember if it was before or after the driver's crash.
JERICHO
Posted 2016-08-07T21:51:44.763
Reputation: 1
I would update all the intel drivers using windows update or intel.com – Moab – 2016-08-07T22:05:56.763
Once I didn't blocked automatic update for drivers from Windows Update, Windows installed graphic driver (dedicated to Iris Pro 6200, not just the default one) directly after restart and that driver also had a problem with non-paged pool. The rest of drivers is up-to-date. I updated them via Snappy Driver Installer. – JERICHO – 2016-08-07T22:16:32.767
I have little faith in 3rd party driver updaters. – Moab – 2016-08-07T22:51:09.717
I used SDI once or maybe twice to check if it's responsible for this, but all drivers from SDI and Intel website cause the problem. I also wrote the drivers versions i installed from Intel website, so i'm sure that drivers from both sources cause the same problem. – JERICHO – 2016-08-07T23:18:53.107
are you sure it is the Intel driver? Which tag is used? Do you have an ETL file that shows the grow? – magicandre1981 – 2016-08-08T05:17:45.653
Of course it's not the Intel's driver itself fault, because it happens on various versions of drivers. If system uses default graphic driver, non-paged pool is about 110MB. When system uses Intel's driver, non-paged pool is 4,1GB. Poolmon shows it's @ GMM tag. "findstr /s @ GMM ." typed in CMD shows only System32/Drivers/igdkmd64.sys (directly after install, before restart, it shows also temporary directories but there're igdkmd64.sys files and igdkmd64lp.sys files. Do i really need to record installing process to prove that the problem has something in common with using dedicated driver? – JERICHO – 2016-08-08T09:18:48.377
I never saw this leak, so an ETL would be nice so that I can take a look at it – magicandre1981 – 2016-08-08T15:21:20.200
@magicandre1981 This file?
– JERICHO – 2016-08-08T17:59:00.630the allocation is outside the trace, but it is really the . Someone posted the issue 7 months ago: https://communities.intel.com/thread/96869 hope that Intel fixes it
– magicandre1981 – 2016-08-09T05:19:37.627@magicandre1981 On Polish forum where i also described this problem, i got advice to reset BIOS and then i suddenly recalled that i changed VRAM reserved for iGPU from 448(or something like that)MB to 1GB. I changed it to 512MB and there's no more memory leak. Thank you very much for your help with a problem i created. – JERICHO – 2016-08-09T12:05:44.757
ok, so this high usage came from allocating 4GB to the GPU? – magicandre1981 – 2016-08-10T06:51:32.847
1Not exactly. It seems driver can't allocate more than 512MB of RAM for iGPU. If you choose more than 512MB, there'll be memory leak. When i choosed 1GB, Task Manager showed about 630MB 'Hardware Reservd' memory. Now on 512MB chosen in UEFI Task Manager shows 593MB 'Hardware Reserved'. – JERICHO – 2016-08-10T08:37:46.013
ok. Post your finding as answer with all steps to solve it. – magicandre1981 – 2016-08-10T14:39:54.877