O_DIRECT on stdin?

Dan Stromberg strombrg at dcs.nac.uci.edu
Mon Nov 7 15:58:23 EST 2005


On Mon, 07 Nov 2005 20:42:50 +0000, Gordon Burditt wrote:

>> [quoted text muted]
> 
> Does O_DIRECT perhaps invoke some of the restrictions of "raw"
> device files, where the current offset and transfer size must be a
> multiple of some block size?  (I don't see any mention of that in
> FreeBSD's documentation.) What is the value of blocksize at the
> time of the traceback above?  I suggest keeping it well under 2G.
> 
> 						Gordon L. Burditt

I'm not aware of such a restriction on O_DIRECT, but then I just learned
of O_DIRECT's existence earlier today.  :)

The value of blocksize at the time of the error should be 1 megabyte.




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