added FAQ answer for EV/ithreads incompatibility

mojolicious · Oct 5, 2012 · de41c75 · de41c75
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diff --git a/Changes b/Changes
@@ -1,5 +1,5 @@
 
-3.45  2012-10-05
+3.45  2012-10-06
   - Improved documentation.
 
 3.44  2012-09-29

diff --git a/lib/Mojolicious/Guides/FAQ.pod b/lib/Mojolicious/Guides/FAQ.pod
@@ -85,6 +85,17 @@ any C<\r\n> terminated part of a HTTP message, such as request line, status
 line and headers. This limit is around C<10KB> by default, you can use the
 C<MOJO_MAX_LINE_SIZE> environment variable to change this value.
 
+=head2 What does the error "EV does not work with ithreads" mean?
+
+The L<Mojolicious> user agent and web servers are based on an event loop that
+supports multiple reactor backends. One of these backends is L<EV>, it is very
+fast and will be automatically used if installed. On Windows however, the
+C<ithreads> based C<fork()> emulation can interfere with it, and you may have
+to use the C<MOJO_REACTOR> environment variable to enforce a more portable
+one.
+
+  MOJO_REACTOR=Mojo::Reactor::Poll
+
 =head2 What does "Your secret passphrase needs to be changed" mean?
 
 L<Mojolicious> uses a secret passphrase for security features such as signed