Upgraded cyrus 2.5.6: lmtpd segfaults

Ken Murchison murch at andrew.cmu.edu
Mon Nov 2 15:26:32 EST 2015

On 11/02/2015 03:16 PM, Stefan G. Weichinger wrote:
> Am 2015-11-02 um 20:06 schrieb Dave McMurtrie via Info-cyrus:
>> On Mon, 2015-11-02 at 19:11 +0100, Stefan G. Weichinger via Info-cyrus
>> wrote:
>>> Am 2015-11-02 um 14:06 schrieb Stefan G. Weichinger via Info-cyrus:
>>>> gentoo server here,
>>>> yesterday I upgraded cyrus-imapd from 2.4.x to 2.5.6
>>>> Alongside I reinstalled glibc, cyrus-sasl, postfix ... and corrected all
>>>> the new config options etc in cyrus.conf etc
>>>> I now see problems with lmtpd.
>>> I tried multiple things over the last few hours, even upgraded the
>>> kernel and rebuilt all(?) the relevant packages.
>>> I still have over 100 emails in the queue which don't get delivered to
>>> cyrus, and I still get the segfaults.
>>> Could someone pls advise how to proceed and maybe debug this issue?
>> We recently upgraded our MX servers to what will eventually be 3.x and
>> had a series of issues with lmtpproxyd (which is actually a link to
>> lmtpd).  I'm not sure how much of the code is common with what's in the
>> 2.5.x releases, but Ken (cc'd on this) managed to track down and fix our
>> sigsegv issues.  Ken, do you know if the things you fixed are present in
>> the 2.5.x code as well?
> I am thankful for any help on this as I have to get out these mails to
> my customers (right now it's 9pm here, but I should have that fixed tmrw
> morning or so).
> Maybe I could downgrade to 2.4 as well? I hesitate to do so as I don't
> want to make things even worse by panicking.
> Stefan

Can you get a backtrace from a lmtpd  core dump?

Kenneth Murchison
Principal Systems Software Engineer
Carnegie Mellon University

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