CODEWITHSUNDEEP
windbgdebug-symbolswindows-kernel
user3557422
user3557422

Reputation: 29

Trouble Loading local symbols in WinDBG - Kernel Driver

I cannot figure out why my local symbols are not loading for a kernel driver compiled using WDK and VS2013.
I build the driver and place myDriver.pdb in C:\Symbols\local, and copy the myDriver.sys to my virtual machine. Using VirtualKD I start the debugger, install the driver, and look at my loaded modules or try to set a breakpoint on myDriver!DriverEntry. When I try the breakpoint I get:

BP expression myDriver.sys!DriverEntry could not be resolved, adding deferred bp

My symbol path is: 

C:\Symbols\local;srv*C:\Symbols\symcache*http://msdl.microsoft.com/download/symbols

When I try to .reload /f myDriver.sys I get:

kd> .reload /f myDriver.sys

"myDriver.sys" was not found in the image list.
Debugger will attempt to load "myDriver.sys" at given base 00000000`00000000.

Please provide the full image name, including the extension (i.e. kernel32.dll)
for more reliable results.Base address and size overrides can be given as
.reload <image.ext>=<base>,<size>.
DBGENG:  myDriver.sys - Partial symbol image load missing image info
DBGHELP: No header for myDriver.sys.  Searching for dbg file
DBGHELP: c:\symbols\local\myDriver.dbg - file not found
DBGHELP: c:\symbols\local\sys\myDriver.dbg - path not found
DBGHELP: c:\symbols\local\symbols\sys\myDriver.dbg - path not found
DBGHELP: .\myDriver.dbg - file not found
DBGHELP: .\sys\myDriver.dbg - path not found
DBGHELP: .\symbols\sys\myDriver.dbg - path not found
DBGHELP: myDriver.sys missing debug info.  Searching for pdb anyway

DBGHELP: myDriver - private symbols & lines 
    c:\symbols\local\myDriver.pdb - unmatched
Unable to add module at 00000000`00000000

Any ideas as to how I can fix this? Thanks!

Upvotes: 1

Views: 2947

Answers (1)

Evgenii Gostiukhin
Evgenii Gostiukhin

Reputation: 980

Because driver isn`t loaded yet. Deffered bp is OK. They will be resolved on driver load. This is normal behavior, no need to "fix this".

Upvotes: 1

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