Bug#401487: If primary MX is down, SEGFAULT

[Marc Haber]

tags #401487 unreproducible moreinfo
thanks

On Tue, Dec 05, 2006 at 09:36:21AM +1100, Peter Chubb wrote:
> Unfortunately the offending destination MX is up again, so things are
> working.

You can try reproducing this with a REJECT packet filter rule
configured to send back an TCP RST packet.

Or you can send to foo at refusingmx.zugschlus.de. As the name suggests,
the MX for this domain does not run a mail service and is thus always
refusing connections.

> I'll try to manufacture a situation tonight which reproduces the
> problem.  
> 
> It's a bit hard because my mail gateway (where I see the
> problem) is a virtual host in New York, with very little spare disk
> space for a large trace.

I understand. I do not expect the strace to be that large if you pipe
the message directly to an straced exim process:

# echo foo | strace -f -s 2000 -o strace.exim exim target.address at example.com

You need to be root for the strace of the suid binary to work. While
testing, the trace was not even 200 KB large.

In the mean time, please attach the output of

dpkg --list 'exim4*' | grep '^ii'

and

reportbug --subject="none" --offline --body="none" --quiet --print --severity=wishlist $(COLUMNS=160 dpkg --list 'exim4-daemon-*' | grep '^ii' | awk '{print $2}')

to this bug report so that we see which daemon and libs you have
installed.

Greetings
MArc

-- 
-----------------------------------------------------------------------------
Marc Haber         | "I don't trust Computers. They | Mailadresse im Header
Mannheim, Germany  |  lose things."    Winona Ryder | Fon: *49 621 72739834
Nordisch by Nature |  How to make an American Quilt | Fax: *49 621 72739835