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This likely means that it's being invoked often.ДЄ clue to why this is the case is seen in the routines that are earlier on the stack. It's in the fact that it's having to do a lot of work. After all this function (or an equivalent under another name) has been part of Windows since NT 3.1. The problem here is likely not inherent in MiWalkPageTablesRecursively. You will also still have paging, and page faults to and from disk, even if you don't have a pagefile.) (By the way: Not only will you still have page tables even if you don't have a pagefile.

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By 'defined', I mean it includes the process's mapped and private committed address space, and AWE regions if any it doesn't include reserved or free address space - regions which would throw an access violation if you tried to read or write them. Page tables are composed of page table entries there is one PTE for for each page - 4K - of the process's defined virtual address space. Every process has a set of page tables, and there's a set for the OS's address space ('kernel space') as well. Page tables are in-memory structures (and are present in all Windows systems regardless of pagefile configuration). Which I think means either use less virtual address space at one time, or add more RAM.Дetails: First, the routine you're seeing, MiWalkPageTablesRecursively, has little to do with the page file directly, but rather with page tables. The quick answer: Give that routine less work to do.

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Wouldn't it be cool if we had software AI that would be able to help with all these things? The problem persists of the zombie processes, so I will have to uninstall fences to resolve the issue.ДЄnd the list of zombie processes after a fresh restart.

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Also disabled synergy to ensure that wasn't the cause.ДЄfter a fresh restart and update of fences. This implies that FENCES.exe was the cause, so I've updated that program and will check again later. Currently pointed to system, but don't know which one it should point to.ДЄfter following the link for finding Zombie Processes, I discovered the following data (truncated to remove minor entries) 374 total zombie processes.Дў zombies held by RuntimeBroker.exe(12184)ДЎ zombie held by SecurityHealthService.exe(4536) Multiple versions of dbghelp.dll found on system. The configured symbol paths as recommended by Blog to speed up symbol loading This is after a fresh restart where the problem doesn't exist. (It's always ThreadID 56 I believe) But the several trace logs always seem to show what we saw above as the issue.ДЄdded images as requested for RAM. Process explorer typically shows the above, though at other times it can show debug filter state вЂ¦etc.

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I don't know how to reconcile this difference: However Process Explorer shows a different thread under the system image.

If any kernel expert can give advice on what I should try next, I'd be happy to do it. It seems to happen after the system has been up for a while.

That seemed to have solved the problem for a few weeks, but now it's here again, even though the pagefile is only 2GB. So I created a small pagefile about 100MB вЂ“ 2048MB. I thought it had to do with the Page file guessing by the function names, and disabled my page file, and restarted, but windows instead on having a page file and threw an error. I setup Windows Performance Analyzer and was able to trace the process to this: Following the post on tracking high CPU usage by the kernel, I thought I had debugged an issue that had been plaguing me, namely 20-30% consistent CPU usage by the System process.

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