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Date:      Tue, 30 Jan 2018 00:01:57 +0100
From:      Dimitry Andric <dim@FreeBSD.org>
To:        "O. Hartmann" <ohartmann@walstatt.org>
Cc:        FreeBSD CURRENT <freebsd-current@freebsd.org>
Subject:   Re: CURRENT, CLANG 6: apache24, uid 80: exited on signal 11
Message-ID:  <0B0D5F42-8A40-4E00-812C-EFB6556E9444@FreeBSD.org>
In-Reply-To: <20180129194025.745c49bd@thor.intern.walstatt.dynvpn.de>
References:  <20180129194025.745c49bd@thor.intern.walstatt.dynvpn.de>

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On 29 Jan 2018, at 19:39, O. Hartmann <ohartmann@walstatt.org> wrote:
>=20
> Last weekend I updated a CURRENT server to recent CURRENT, > r328400 =
and performed
> updates of the ports tree. Since Sunday, I receive segmenatation =
faults (SIG 11) when
> accessing the server, especially with setup of nextcloud, refdb, =
phpldapadmin and any
> other access with LDAP backend (all https).
>=20
> The message on console is:
>=20
> pid 23108 (httpd), uid 80: exited on signal 11
> pid 32283 (httpd), uid 80: exited on signal 11
> pid 21286 (httpd), uid 80: exited on signal 11
> pid 10292 (httpd), uid 80: exited on signal 11
>=20
> I do not see anything else! Neither in the log (no matter what log =
level I switch on) nor
> elsewhere.
>=20
> Configuration hasn't changed.
>=20
> What the ... is up with the system? How can I dig into the problem?

Try debugging httpd, e.g.:

sudo /usr/local/sbin/httpd -X

then "run", and see if you can get a backtrace.

-Dimitry


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