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Message from discussion Postfix SMTP Client Segfaults over TLS
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Daniel Sutcliffe  
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 More options May 28 2012, 10:54 am
Newsgroups: mailing.postfix.users
From: dan...@tcnow.com (Daniel Sutcliffe)
Date: Mon, 28 May 2012 10:54:18 -0400
Local: Mon, May 28 2012 10:54 am
Subject: Re: Postfix SMTP Client Segfaults over TLS
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Thanks for the response Wietse, most appreciated.

Daniel Sutcliffe wrote:
>> I'm having a very similar problem here on CentOS 6 - unfortunately moving or
>> removing the TLS session caches and restarting postfix is not fixing my problem
>> at all.  Coincidently the openssl package was updated the day before the problem
>> started.
>>   postfix 2.6.6-2.2.el6_1
>>   openssl 1.0.0-20.el6_2.4
Wietse Venema <wie...@porcupine.org> wrote:
> Was Postfix compiled for openssl 1.0.0? If it was built for 0.9.mumble,
> then the warranty is void and all bets are off.

CentOS 6 has always been OpenSSL 1.0.0 AFAIK and therefore the postfix
version was certainly originally built against this.

Trawling  back through the logs I can see that on May 16 openssl was
upgraded from 1.0.0-20.el6_2.3 to 1.0.0-20.el6_2.4 - and there had
been no issues running the postfix 2.6.6-2.2.el6_1 package with that
previous package build of openssl.

I have now tried stopping postfix, downgrading my openssl package back
to this previous version, deleting the TLS session caches, and
starting postfix again and the same problem is occurring - which would
infer to me that it isn't an OpenSSL package version which caused the
problem - and maybe the upgrade of this package in the same time-frame
as when the problem started occurring may be a bit of a red herring :(

The only other change in system which would seem to be even slightly
related was that the kernel was updated and a reboot occurred just
before the errors started to occur.  I am contemplating going back to
the previous version of the kernel but would like to take advice from
those more experienced and knowledgeable in postfix than myself as to
if this might possibly have caused the issue, or if there are any
other diagnostics I can do before this ... the server runs a live Web
site so downtime for a reboot is something I want to avoid and/or
timetable during a quiet period.

Any pointers gratefully received,
Cheers
/dan
--
Daniel Sutcliffe <Dan...@tcNOW.com>


 
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