[win-pv-devel] DRIVER_IRQL_NOT_LESS_OR_EQUAL in xenbus.sys

[Michael Stern <mhstar89@xxxxxxxxx>]

I'm running a Windows 2016 VM under Xen, which works great - however, the moment I try to install Microsoft SQL Server 2016, Windows will crash with a BSOD due to DRIVER_IRQL_NOT_LESS_OR_EQUAL in xenbus.sys.

Here's what I found out:

- The bug is perfectly reproducible, it'll happen every time, and it'll happen within seconds of the attempted install.

- If the SQL Server 2016 Setup is started while xenbus.sys is not installed, the install works fine, but obviously the performance of the server is very poor without the PV drivers.

- This happens with the signed drivers, and with the bleeding edge drivers.

- This is not limited to Windows 2016 and SQL Server 2016, installing the SP3 of SQL Server 2012 on a Windows 2008 Server will also result in a BSOD in xenbus.sys.

Do you have any pointers as to what I could try? Would you be interested in a memory dump, or some other information? I can setup a pristine Windows 2016 Server with all the files in place to cause the crash.

Host system is a Xen 4.7.0 on Ubuntu 16.04 (however keep in mind that without the PV drivers, the install works without hiccups).

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