On Tue, Jun 11, 2013 at 4:59 PM, Pádraig Brady <[email protected]> wrote:

> I doubt dd is at issue here.
>
> There was an old kernel issue with O_DIRECT returning
> invalid data from sparse files, though that doesn't
> seem to be the case above.
>
> This only is an issue over NFS.
> NFS doesn't pass O_DIRECT to the server,
> but perhaps it's triggering some bug in the client?
>
> Is the corruption always 37,533,700 bytes in?
>

Thanks for the input.

Good question about the location of the corruption.

I may still have another file that had the issue - I will check this.




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