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

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

> -----Original Message-----
> From: win-pv-devel [mailto:win-pv-devel-bounces@xxxxxxxxxxxxxxxxxxxx] On
> Behalf Of Paul Durrant
> Sent: 11 November 2016 14:57
> To: Michael Stern <mhstar89@xxxxxxxxx>; win-pv-
> devel@xxxxxxxxxxxxxxxxxxxx
> Subject: Re: [win-pv-devel] DRIVER_IRQL_NOT_LESS_OR_EQUAL in
> xenbus.sys
> 
> De-htmling...
> 
> -----
> From: win-pv-devel [mailto:win-pv-devel-bounces@xxxxxxxxxxxxxxxxxxxx] On
> Behalf Of Michael Stern
> Sent: 11 November 2016 14:52
> To: win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> Subject: [win-pv-devel] DRIVER_IRQL_NOT_LESS_OR_EQUAL in xenbus.sys
> 
> 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).

I tried this (SQL Server 2016 onto a Server 2016 VM) on my XenServer set up 
with my latest builds of the master branch of the drivers and I'm not seeing 
any immediate crash. I'll try it on my 'upstream' debian based rig... should be 
closer to your setup.

  Paul

> -----
> 
> Yes, please send me a memory dump if you can. Also, the drivers log to
> QEMU so if you can grab the QEMU log too then that may yield more info.
> 
> Thanks,
> 
>   Paul
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