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authorPhilip Hazel <ph10@hermes.cam.ac.uk>2007-01-22 16:29:54 +0000
committerPhilip Hazel <ph10@hermes.cam.ac.uk>2007-01-22 16:29:54 +0000
commit54fc8428c5c4b3fa90347e5ca7d89c2d752a7032 (patch)
treea8aa051cef5aa113688b8d55008c73af1aecd63c /doc/doc-txt/NewStuff
parent34c5e8dd8f02edebfe8e54fae0941dc7ca3dc000 (diff)
Cautiously added ENABLE_DISABLE_FSYNC and disable_fsync, hedged about
with much warning text.
Diffstat (limited to 'doc/doc-txt/NewStuff')
-rw-r--r--doc/doc-txt/NewStuff13
1 files changed, 12 insertions, 1 deletions
diff --git a/doc/doc-txt/NewStuff b/doc/doc-txt/NewStuff
index 9cc8f81cc..ac707ae40 100644
--- a/doc/doc-txt/NewStuff
+++ b/doc/doc-txt/NewStuff
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/NewStuff,v 1.128 2007/01/18 15:35:42 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/NewStuff,v 1.129 2007/01/22 16:29:54 ph10 Exp $
New Features in Exim
--------------------
@@ -175,6 +175,17 @@ Version 4.67
preference order for the cipher algorithms. The first one in the client's
list that is also advertised by the server is tried first.
+ 4. There is a new compile-time option called ENABLE_DISABLE_FSYNC. You must
+ not set this option unless you really, really, really understand what you
+ are doing. No pre-compiled distributions of Exim should ever set this
+ option. When it is set, Exim compiles a runtime option called
+ disable_fsync. If this is set true, Exim no longer calls fsync() to force
+ updated files' data to be written to disc. Unexpected events such as
+ crashes and power outages may cause data to be lost or scrambled. Beware.
+
+ When ENABLE_DISABLE_FSYNC is not set, a reference to disable_fsync in a
+ runtime configuration generates an "unknown option" error.
+
Version 4.66
------------