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Date: Wed, 09 Mar 2011 20:05:35 +0100
From: Robert Wruck <wruck AT tweerlei DOT de>
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To: cygwin AT cygwin DOT com
Subject: Re: 1.7.8: write fails with EAGAIN
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> I replaced the cygwin1.dll with cygwin1-20110309.dll and now a single
> write() with 78 MB never returns but seems to write repeatedly to the
> pipe (file was 5GB when I hit Ctrl-C).

... you don't want to keep_looping after calling 
write_overlapped_fallback ...

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