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OSR Developer's Blog

Welcome to the OSR Developer's technical blog. We've relocated the blog here from our OSR Online site to make room for renovations of that site.

This blog is an independent home for our developers to post technical items of interest to the community. It you enjoy it, you can follow our RSS feed from this URL.

PSA: FsRtlIsNameInExpression Can Raise an Exception

Well, THIS one was a surprise…After triggering a memory leak in a driver, the system surprisingly crashed due to a call to FsRtlIsNameInExpression:  # ChildEBP RetAddr  00 b7226d0c 816167b8 nt!RtlpBreakWithStatusInstruction Read more

NTFS Status Debugging

As a file system filter developer, one of the great pains in life is when a file system operation fails deep in the bowels of the file system. For example, Read more

Ready for the Community Move?

We’re ready… well, at least we think we’re ready.  Are YOU? New web site: Questions/Comments/Issues: To summarize key points about the move: The move is scheduled to take Read more

OSR Community Move: 19 September 2018

We have finally fixed on a date when the NTDEV, NTFSD, and WINDBG community site will move: Wednesday, 19 September 2018. Two weeks from now. That’s the TARGET date.  Assuming Read more