hidden i/o

NTFSD
1

Hi. All.

I’m keeping FsContext value of a file. (i release this value in case of the file deleted only)
And i compare this value with every FsContext passed in IRP_MJ_WRITE dispatch routine. (tracking non-cached and paging i/o)

Almost i/o operations for file content same with my tracking exactly, but some range is not.
the content of last write operation for the range in my tracking is not same with the result content of the file.
i don’t know what is happen.

(Does exist a hidden i/o - can’t catch in a filter - anyway?)

Thanks in advances.

2

>> (Does exist a hidden i/o - can’t catch in a filter - anyway?)

Nope , it doesnt You miss IO because you most likely fail to employee a correct reference counting model. Recehck your logic for reference counting, I told you this one month ago if I recall right.

Ciao, Dan

----- Original Message -----
From: gyver-park
To: File Systems Developers
Sent: Saturday, August 10, 2002 5:57 AM
Subject: [ntfsd] hidden i/o

Hi. All.

I’m keeping FsContext value of a file. (i release this value in case of the file deleted only)
And i compare this value with every FsContext passed in IRP_MJ_WRITE dispatch routine. (tracking non-cached and paging i/o)

Almost i/o operations for file content same with my tracking exactly, but some range is not.
the content of last write operation for the range in my tracking is not same with the result content of the file.
i don’t know what is happen.

(Does exist a hidden i/o - can’t catch in a filter - anyway?)

Thanks in advances.

b?떴췾탂왂佳N떑꿩?툤z푤u?jy솳Ⅶ?j歎따?vBXФ??&

3

I think there is. For instance, right click a folder ( or some file, folders), click “send to”, and select “compressed (zipped) folder”, then the IOs for write new zip file created don’t passthrough filter driver.

Cary Fu
----- Original Message -----
From: Dan Partelly
To: File Systems Developers
Sent: Friday, August 09, 2002 8:09 PM
Subject: [ntfsd] Re: hidden i/o

> (Does exist a hidden i/o - can’t catch in a filter - anyway?)

Nope , it doesnt You miss IO because you most likely fail to employee a correct reference counting model. Recehck your logic for reference counting, I told you this one month ago if I recall right.

Ciao, Dan

----- Original Message -----
From: gyver-park
To: File Systems Developers
Sent: Saturday, August 10, 2002 5:57 AM
Subject: [ntfsd] hidden i/o

Hi. All.

I’m keeping FsContext value of a file. (i release this value in case of the file deleted only)
And i compare this value with every FsContext passed in IRP_MJ_WRITE dispatch routine. (tracking non-cached and paging i/o)

Almost i/o operations for file content same with my tracking exactly, but some range is not.
the content of last write operation for the range in my tracking is not same with the result content of the file.
i don’t know what is happen.

(Does exist a hidden i/o - can’t catch in a filter - anyway?)

Thanks in advances.

b?떴췾탂왂佳N떑꿩?툤z푤u?jy솳Ⅶ?j歎따?vBXФ??&

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4

True , it passes through a space time singularity.

Dan
----- Original Message -----
From: Cary Fu
To: File Systems Developers
Sent: Monday, August 12, 2002 7:43 PM
Subject: [ntfsd] Re: hidden i/o

I think there is. For instance, right click a folder ( or some file, folders), click “send to”, and select “compressed (zipped) folder”, then the IOs for write new zip file created don’t passthrough filter driver.

Cary Fu
----- Original Message -----
From: Dan Partelly
To: File Systems Developers
Sent: Friday, August 09, 2002 8:09 PM
Subject: [ntfsd] Re: hidden i/o

> (Does exist a hidden i/o - can’t catch in a filter - anyway?)

Nope , it doesnt You miss IO because you most likely fail to employee a correct reference counting model. Recehck your logic for reference counting, I told you this one month ago if I recall right.

Ciao, Dan

----- Original Message -----
From: gyver-park
To: File Systems Developers
Sent: Saturday, August 10, 2002 5:57 AM
Subject: [ntfsd] hidden i/o

Hi. All.

I’m keeping FsContext value of a file. (i release this value in case of the file deleted only)
And i compare this value with every FsContext passed in IRP_MJ_WRITE dispatch routine. (tracking non-cached and paging i/o)

Almost i/o operations for file content same with my tracking exactly, but some range is not.
the content of last write operation for the range in my tracking is not same with the result content of the file.
i don’t know what is happen.

(Does exist a hidden i/o - can’t catch in a filter - anyway?)

Thanks in advances.

b?떴췾탂왂佳N떑꿩?툤z푤u?jy솳Ⅶ?j歎따?vBXФ??&

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To unsubscribe send a blank email to %%email.unsub%%

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5

and pops out on a jazz drive in fidel castro’s office.

-----Original Message-----
From: Dan Partelly [mailto:xxxxx@rdsor.ro]
Sent: Monday, August 12, 2002 12:33 PM
To: File Systems Developers
Subject: [ntfsd] Re: hidden i/o

True , it passes through a space time singularity.

Dan

----- Original Message -----
From: Cary Fu mailto:xxxxx
To: File Systems Developers mailto:xxxxx
Sent: Monday, August 12, 2002 7:43 PM
Subject: [ntfsd] Re: hidden i/o

I think there is. For instance, right click a folder ( or some file, folders), click “send to”, and select “compressed (zipped) folder”, then the IOs for write new zip file created don’t passthrough filter driver.

Cary Fu

----- Original Message -----
From: Dan mailto:xxxxx Partelly
To: File Systems Developers mailto:xxxxx
Sent: Friday, August 09, 2002 8:09 PM
Subject: [ntfsd] Re: hidden i/o

>> (Does exist a hidden i/o - can’t catch in a filter - anyway?)

Nope , it doesnt You miss IO because you most likely fail to employee a correct reference counting model. Recehck your logic for reference counting, I told you this one month ago if I recall right.

Ciao, Dan

----- Original Message -----
From: gyver-park mailto:xxxxx
To: File Systems Developers mailto:xxxxx
Sent: Saturday, August 10, 2002 5:57 AM
Subject: [ntfsd] hidden i/o

Hi. All.

I’m keeping FsContext value of a file. (i release this value in case of the file deleted only)
And i compare this value with every FsContext passed in IRP_MJ_WRITE dispatch routine. (tracking non-cached and paging i/o)

Almost i/o operations for file content same with my tracking exactly, but some range is not.
the content of last write operation for the range in my tracking is not same with the result content of the file.
i don’t know what is happen.

(Does exist a hidden i/o - can’t catch in a filter - anyway?)

Thanks in advances.

b???v?j??ʢN???zǧu?jy???j???vBX???&

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6

“Benson Margulies” wrote in message
news:xxxxx@ntfsd…
>
>and pops out on a jazz drive in fidel castro’s office.
>

along with directions to a bar where you can share an Hartuey with Che…

7

Every 100 encryption amateurs or so this list just aches for a little
humor.

-----Original Message-----
From: Peter Viscarola [mailto:xxxxx@osr.com]
Sent: Monday, August 12, 2002 5:02 PM
To: File Systems Developers
Subject: [ntfsd] Re: hidden i/o

“Benson Margulies” wrote in message
news:xxxxx@ntfsd…
>
>and pops out on a jazz drive in fidel castro’s office.
>

along with directions to a bar where you can share an Hartuey with
Che…

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