[exim] exim delivery process hang at 100% cpu

Hi

Today exim eat all server cpu to the point that i was unable to
login as root. Once recovered i see one exim process eating 100%
cpu when delivering a message to a remote host

[log]# top
   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  2855 exim      20   0 42168 2412 1232 R  100  0.0  15:44.75 exim

[log]# /usr/local/exim/bin/exiwhat
2853 delivering 1SIDML-0008Ls-OK: waiting for a remote delivery
subprocess to finish
2855 delivering 1SIDML-0008Ls-OK to fltr-in1.mail.dreamhost.com
[208.97.132.73] (kvmlcq3@???)

this process never ended and i have to kill it but in the next
queue run the same message was processed correctly

--
Best regards ...

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    David Saez
    On-Line Services 2000 S.L.
    http://www.ols.es
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