StorMiniport debug prints in windbg

NTDEV
1

StorMiniport driver using DebugPrint function to print the debug messages.I have set the filter in the registry to 0xffffff.Debug prints are being capturing by the Dbgview tool.Wrt Windbg,its not capturing the debug prints.but ,its starts appering in the windbg,once i open the dbgview tool on the target machine where my storminiport driver is running…
wat could be the reason for this…

Thanks in advance,

2

DebugPrint for miniport StorPort driver is implemented in StorPort driver and you need to enable a filter of this function. The filter is defined in somewhere in
!nt module. I believe the variable is !nt.kd_storport_mask.

Igor Sharovar

3

I’m surprised that you were able to get debugview and a kd session to run concurrently.

  1. What registry key/value are you setting?

  2. Are you setting it on the host or target?

Personally, I would recommend doing what Igor suggested.

Good luck,

mm

4

Let me guess. You have enabled both verbose kernel output and pass
through options in the DebugView. Right? If so, it can work following
way. DebugView captures debug message which’d be normally filtered out
but because of verbose option it displays it. Then it sends new message
with the same contents to kernel because of pass through option and this
one isn’t filtered (which can be influence by your filter) out so WinDbg
displays it.

Best regards,

Michal Vodicka
UPEK, Inc.
[xxxxx@upek.com, http://www.upek.com]

-----Original Message-----
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Sent: Sunday, April 18, 2010 11:39 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] StorMiniport debug prints in windbg

StorMiniport driver using DebugPrint function to print the
debug messages.I have set the filter in the registry to
0xffffff.Debug prints are being capturing by the Dbgview
tool.Wrt Windbg,its not capturing the debug prints.but ,its
starts appering in the windbg,once i open the dbgview tool on
the target machine where my storminiport driver is running…
wat could be the reason for this…

Thanks in advance,

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