Tuesday, September 6, 2016

Waiting for concurrent page fault completion

An interesting call stack when a thread waits in a page fault for another thread completing paging data from a file

00 nt!KiSwapContext
01 nt!KiSwapThread
02 nt!KiCommitThreadWait
03 nt!KeWaitForSingleObject
04 nt!MiWaitForCollidedFaultComplete
05 nt!MiResolveTransitionFault
06 nt!MiResolveProtoPteFault
07 nt!MiDispatchFault
08 nt!MmAccessFault
09 nt!KiPageFault
0a nt!memcpy
0b nt!CcCopyBytesToUserBuffer
0c nt!CcMapAndCopyFromCache
0d nt!CcCopyReadEx
0e nt!CcCopyRead
0f nt!FsRtlCopyRead
10 ***
11 ***
12 ***
13 nt!NtReadFile
14 nt!KiSystemServiceCopyEnd

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