problem attaching to network file system on windows XP

NTFSD
1

Hi,

I am attaching to network file system on Windows XP(similar to how sfilter
does) and once my driver is loaded the system boots till the login dialogue
and crashes, could anyone tell why this is happening?

Thanks in advance,
Kedar.

2

kedar wrote:

Hi,

I am attaching to network file system on Windows XP(similar to how sfilter
does) and once my driver is loaded the system boots till the login dialogue
and crashes, could anyone tell why this is happening?

Thanks in advance,
Kedar.

I saw this same problem when I was playing with the SFilter sample. It
happened when I set one of the debug diplay flags. I think it was
SFDEBUG_ATTACH_TO_FSRECOGNIZER, but I’m not sure. I do remember that
setting one of them crashed just like you are describing. All the others
worked fine.

Kevin

3

Hi Kevin,

What you experienced is a known bug I reported to
Microsoft back in October. There is a bug in sfilter
which shows up when you attach to recognizers. You can
search the archive for info on how to fix it. However,
as Neal Christiansen said some time ago, there is no
reason why file system filter drivers should attach to
recognizers.

Best regards,
Razvan

— Kevin Lussier wrote:

> kedar wrote:
> > Hi,
> >
> > I am attaching to network file system on Windows
> XP(similar to how sfilter
> > does) and once my driver is loaded the system
> boots till the login dialogue
> > and crashes, could anyone tell why this is
> happening?
> >
> > Thanks in advance,
> > Kedar.
> >
> >
> >
>
> I saw this same problem when I was playing with the
> SFilter sample. It
> happened when I set one of the debug diplay flags. I
> think it was
> SFDEBUG_ATTACH_TO_FSRECOGNIZER, but I’m not sure. I
> do remember that
> setting one of them crashed just like you are
> describing. All the others
> worked fine.
>
> Kevin
>

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4

Hi Razvan.

Yeah, I sorta figured I wasn’t the first one to notice the crash, which
is why I didn’t bother to look into it further. I was just thinking that
perhaps kedar had set this flag inadvertently since he was basing his
driver off the SFilter sample.

Thanks,
Kevin

Razvan Hobeanu wrote:

Hi Kevin,

What you experienced is a known bug I reported to
Microsoft back in October. There is a bug in sfilter
which shows up when you attach to recognizers. You can
search the archive for info on how to fix it. However,
as Neal Christiansen said some time ago, there is no
reason why file system filter drivers should attach to
recognizers.

Best regards,
Razvan

— Kevin Lussier wrote:
>
>
>>kedar wrote:
>>
>>>Hi,
>>>
>>>I am attaching to network file system on Windows
>>
>>XP(similar to how sfilter
>>
>>>does) and once my driver is loaded the system
>>
>>boots till the login dialogue
>>
>>>and crashes, could anyone tell why this is
>>
>>happening?
>>
>>>Thanks in advance,
>>>Kedar.
>>>
>>>
>>>
>>
>>I saw this same problem when I was playing with the
>>SFilter sample. It
>>happened when I set one of the debug diplay flags. I
>>think it was
>>SFDEBUG_ATTACH_TO_FSRECOGNIZER, but I’m not sure. I
>>do remember that
>>setting one of them crashed just like you are
>>describing. All the others
>>worked fine.
>>
>>Kevin
>>
>
>
>
>
>
> __________________________________
> Do you Yahoo!?
> Yahoo! Mail - You care about security. So do we.
> http://promotions.yahoo.com/new_mail
>

5

Debug the crash in WinDbg using the usual ways.

Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
xxxxx@storagecraft.com
http://www.storagecraft.com

----- Original Message -----
From: “kedar”
Newsgroups: ntfsd
To: “Windows File Systems Devs Interest List”
Sent: Thursday, January 13, 2005 4:45 PM
Subject: [ntfsd] problem attaching to network file system on windows XP

> Hi,
>
> I am attaching to network file system on Windows XP(similar to how sfilter
> does) and once my driver is loaded the system boots till the login dialogue
> and crashes, could anyone tell why this is happening?
>
> Thanks in advance,
> Kedar.
>
>
>
> —
> Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17
>
> You are currently subscribed to ntfsd as: xxxxx@storagecraft.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com

6

The only thing I can tell you that it crashes
in the logon time because it is usually the phase
when requests to the network drive(s) start to come.

So the good news is - your driver is successfully attached
to the network volume

And the bad news it - you have a bug there.

Do as Max suggested.
And remember (also for other ones):

It is useless to post a question like
“Hi, I have a FSD driver and it crashes, don’t you know why ?”
No one will be able to help you, unless you generate
a crash dump and send at least a little excerpt from
WinDbg.

L.

----- Original Message -----
From: “kedar”
Newsgroups: ntfsd
To: “Windows File Systems Devs Interest List”
Sent: Thursday, January 13, 2005 2:45 PM
Subject: [ntfsd] problem attaching to network file system on windows XP

> Hi,
>
> I am attaching to network file system on Windows XP(similar to how sfilter
> does) and once my driver is loaded the system boots till the login
> dialogue
> and crashes, could anyone tell why this is happening?
>
> Thanks in advance,
> Kedar.
>
>
>
> —
> Questions? First check the IFS FAQ at
> https://www.osronline.com/article.cfm?id=17
>
> You are currently subscribed to ntfsd as: xxxxx@volny.cz
> To unsubscribe send a blank email to xxxxx@lists.osr.com
>
>