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Date: Thu, 10 Mar 2011 23:53:59 +0100
From: Robert Wruck <wruck@tweerlei.de>
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Subject: Re: 1.7.8: write fails with EAGAIN
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> How about if you try a snapshot rather than your own home-built
> version?

There is no snapshot dated 03-10 on http://cygwin.com/snapshots/.

Unfortunately, there is no "hard limit" of 64MB.
On the machine where I first encountered the error, the limit seems to 
be about 16MB. On another machine, it's higher, about 200MB.
When the real limit is less than MAX_OVERLAPPED_WRITE_LEN, 
write_overlapped_fallback cannot succeed.

-Robert

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