Author: W B Hacker Date: To: exim-users Subject: Re: [exim] O_NONBLOCK / ``421 lost input connection'' in exim 4.60
Philip Hazel wrote:
> On Tue, 21 Mar 2006, Chris Lightfoot wrote:
>
>
>>Further inspection with ktrace indicates that something
>>was setting O_NONBLOCK on the input stream (smtp_in in
>>smtp_in.c); the first read from the stream will then
>>typically fail with -EAGAIN, which is treated as an error.
>
>
> As you say, Exim doesn't use O_NONBLOCK on the input file descriptor,
> and this problem has not been reported by anybody else. There are
> certainly people running Exim under FreeBSD - indeed I tested it on the
> exim.org machine.
>
>
>>So, anyway, I have a temporary fix, but if it'd be useful
>>to investigate this further I'm happy to help.
>
>
> I don't think there's anything I can do myself, because the problem
> doesn't arise on the FreeBSD system to which I have access. Your fix
> seems innocuous, but I'm not too keen on just putting it in without
> understanding why it should be necessary.
>
JFWIW, we have never run Exim on anything *but* FreeBSD, both:
- from the 'ports' collection
- from Exim tarball, with apropriate edits of local.cfg
.. and have never (been aware of) experiencing the problem reported.
