Monthly Archives: March 2020

Driver Verifier !ruleinfo Bug – NdisFilterTimedDataSend

Driver Verifier is a great tool, but as we know from previous posts, this tool isn’t without it’s fair share of possible bugs. Quite recently, another potential bug has surfaced with Driver Verifier, and this appears to be related to … Continue reading

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The Complete Guide to Debugging a Stop 0x9F – Part 3

In the last part, we looked at how to debug a Stop 0x9F when the cause was due to a blocked IRP. In this final part, we’ll take a look a situation whereby the cause is related to a PnP … Continue reading

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The Complete Guide to Debugging Stop 0x9F – Part 2

Welcome to the second part of this debugging series for a Stop 0x9F, in this part we’ll continue exploring this very common bugcheck and learn some of the WinDbg commands which are useful in identifying the root cause. There is … Continue reading

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The Complete Guide to Debugging a Stop 0x9F – Part 1

Note: I originally wrote about this bugcheck on this site several years ago now, however, the original guide was written in a Word document which was attached to the post. Since then, there has been a number of different WinDbg … Continue reading

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