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Date: Mon, 13 Oct 2008 10:16:38 -0400
From: "Andrew Medico" <a DOT medico AT gmail DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: dd fails with iflag=direct
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On Thu, Oct 9, 2008 at 8:42 AM, Corinna Vinschen <corinna-cygwin AT cygwin DOT com> wrote:

> I fixed that in CVS for Cygwin 1.7.  Apparently when reading over the
> end of a drive (but not a partition), Windows decides to return a weird
> error code ERROR_CRC instead of just returning EOF.
>
> For Cygwin 1.5.25, the workaround is not using iflag=direct but standard
> buffered reading.  It's much faster most of the time anyway.

Ok, thanks. I'll be on the lookout for 1.7.

I'm mostly using this in situations where getting all possible data is more important than speed (a single bad sector in buffered mode usually causes a much larger region to be reported as unavailable), so unbuffered is preferrable.

-- 
Andrew Medico <a DOT medico AT gmail DOT com>


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