In my previous post I talked about how FILE_SHARE_DELETE can cause ERROR_ACCESS_DENIED error.
Diagnose access denied error is hard, especially when it only happens under stress.
In the case of FILE_SHARE_DELETE cuasing ERROR_ACCESS_DENIED error, FileMon will show it as "DELETE PEND", instead of "ACCESS DENIED".
7190 4:47:18 PM repro.exe:56768 CREATE D:\temp\test.txt DELETE PEND Options: OverwriteIf Access: All
But in any case, DELETE PEND == ERROR_ACCESS_DENIED.