Corruptions seen with diskercise.exe tool

Jeremy Allison jra at
Thu Jun 16 18:52:29 UTC 2016

On Thu, Jun 16, 2016 at 10:33:22AM -0700, sandeep nag wrote:
> I am seeing read corruption with diskercise.exe tool on a CIFS share
> mounted on  windows server 2012 R2 datacenter operating system client
> Samba share is on samba 3.6.25 code base.
> [image: Inline image 1]
> Any thoughts on why this corruption is happening?
>  1. Is it because of packet transmission issue in other layers like
> tcp/sessions layer or so?


>  2. Is it a false positive?
>  3. The corruption is because of the underlying filesystem on the server,
> where samba reside.
>  4. If the issues happens to be in samba source, which part of the code
> could it be in.

Completely unknown based on the info you've given I'm afraid.
You'll have to narrow this down much more (e.g. when this
write call happens then corruption occurs) in order to find
out what's going on here.

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