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Date: Sat, 07 Feb 2015 17:23:33 +0100
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Cygwin --fork problems seem to be solved

Solar,

What is the reason you went with flock() for file locking? I'm guessing
you had specific reasons.

>From the looks of it so far, Cygwin works perfectly fine with --fork
when using fcntl() locking instead of flock(). We tried this after
establishing that the problem we've seen all the time is that flock()
deadlocks. This is obviously a bug in Cygwin that should be fixed, but
that's another story. We will implement fcntl locking an alternative and
use it for Cygwin at least, possibly others?

https://github.com/magnumripper/JohnTheRipper/issues/1044

magnum


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