I have downloaded and installed the SDK for my version of Windows However, when I browse or search for I am unable to find the exe and therefor I am unable to run the program to troubleshoot a. It is a bit more convoluted than that, but you get the picture.īTW, the system MS uses for the ticket tracking, sux. PoolMon monitors the bytes in the paged and Looking for ingredients for Refer to the below mentioned link to download Windows. The fix (known as a private) will then be tested (smoked) until they are sure it is ready for release.
If it needs fixing, then it will be escalated to Redmond where the Platform group will alter the code for a fix. CPR (critical product resolution) will then review and decide whether a problem is severe enough to require fixing. If the Exchange guys note an issue with a platform file, they will open a ticket with platform (in this case, networking) CPR and present them with evidence of a problem. However, during my time there, it was rare to see such regression.Īlso, when a group, like the Exchange group, needs a change to something like AFD.SYS, they don't make the change.
Their bugcheck page (MS internal only) helps keep things straight, but when you are dealing with a massive load of updates, things get screwy and you'll see a file regression. RE: AFDB tag in Poolmon using up non paged memoryĪctually they do a pretty good job cross referencing.
Version 2 drivers operate in Kernel mode, whereas Version 3 driver operate ONLY in User mode. Since Non-paged pool is in kernel mode and the spooler is allocating all non-paged pool, then I suspect it is a Version 2 driver. If anything breaks outright, just restore the keys and restart the spooler. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\MonitorsĪnd sometimes Microsof Document Imaging Writer Monitor.īackup the entire Monitors key and delete any subkeys that are not listed above, then restart the spooler. If you do have this key, and drivers listed in the subkey, then uninstall the driver, backup and delete the key, and restart the spooler. If you do not have this key, then you don't have any Version2 drivers. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Environments\Windows NT x86\Drivers\Version-2 Remove any version 2 drivers and any 3rd part port monitors for good measure, then restart the spooler service. Microsoft should fix that in some SP.let's hope soon.Most of the time I've seen non-paged pool leaks in the spooler, it has been caused by version 2 print drivers. Ndu driver was introduced with Win8 and is actually quite buggy in combination with RTL8168 NIC.
The following kernel drivers were not loaded in safe mode:Īfter disabling Ndu.sys (Windows Network Data Usage Monitoring Driver) with Autoruns and performing normal boot - voila memory leak has gone!!!! The next step was booting machine in “safe mode with networking” and I was surprised - no more memory leaks!! I made a list of loaded network drivers (using DriverView) and compared it with the list of drivers in normal boot. Therefore, the culprit is not NIC/WLAN driver at all.
I even disabled LAN interface and tried WLAN only -> still memory leak. installed Win8 latest drivers from Realtek -> memory leak remains installed Win7 drivers (Win8 still not supported) from HP official site -> memory leak remains Ģ.
Laptop has intergrated gigabit NIC from Realtek (RTL8168) so I tried to update it:ġ. Therefore, one of network related driver is a problem, so let’s find which one. The driver tag found by poolmon.exe was “Wfpn” and findstr found “ netio.sys” that is the part of Win8 core networking subsystem. Poolmon.exe showed that non-paged memory grows constantly when copying big files (few 100MB). I used the tool “ poolmon.exe” (part of Windows Driver Kit) to find out which driver is causing the memory leak ( link1, link2, link3). I suspected some third-party network driver is reason for this. Just Chrome browser and MS Word were running most of the mory usage 3.5GB !?!?! The new task manager was showing that the non-paged memory pool raised very fast memory usage stopped at ~3.6GB and then machine started to crawl. When I started to copy big files around LAN (ISO files, AVI.), torrents. Memory usage at start-up was similar as with Win7 (~1GB of total 4GB) but now the story begins. New Modern UI.nice.polished desktop, speed.nice too. I made a clean installation that took ~20min.
Win7 served me perfectly for the last two years and I was quite curious how Win8 (Windows 8 Pro Build 9200 圆4) compares with it.
Few days after Win8 RTM launch I decided to install it on my old good HP Pavilion DV7 laptop.