Windows System Software -- Consulting, Training, Development -- Unique Expertise, Guaranteed Results
The free OSR Learning Library has more than 50 articles on a wide variety of topics about writing and debugging device drivers and Minifilters. From introductory level to advanced. All the articles have been recently reviewed and updated, and are written using the clear and definitive style you've come to expect from OSR over the years.
Check out The OSR Learning Library at: https://www.osr.com/osr-learning-library/
Upcoming OSR Seminars | ||
---|---|---|
OSR has suspended in-person seminars due to the Covid-19 outbreak. But, don't miss your training! Attend via the internet instead! | ||
Writing WDF Drivers | 7 Dec 2020 | LIVE ONLINE |
Internals & Software Drivers | 25 Jan 2021 | LIVE ONLINE |
Developing Minifilters | 8 March 2021 | LIVE ONLINE |
Comments
*think* it's a checked build only thing, but I don't have a Win7 Free
already installed to play with at the moment.
Steps were:
1. Copy gflags.exe and gflagsui.dll to the target machine
2. Under Object Reference Tracing tick the Enable box
3. In Pool Tags put: Devi
4. Click OK, reboot
kd> !obtrace 8d359830
Object: 8d359830
Image: System
Sequence (+/-) Tag Stack
-------- ----- ---- ---------------------------------------------------
41d7 +1 Dflt nt!ObCreateObject+1ab
nt!IoCreateDevice+17f
ksecdd!DriverEntry+df
nt!IopInitializeBuiltinDriver+34c
nt!PnpInitializeBootStartDriver+a1
nt!IopInitializeBootDrivers+377
nt!IoInitSystem+593
nt!Phase1InitializationDiscard+d67
nt!Phase1Initialization+d
nt!PspSystemThreadStartup+178
-scott
OSR
@OSRDrivers
-scott
OSR
My mistake was that I specified invalid tag value ('Dflt', for example).
Thanks, Scott.