apache-2.4.10 dies in reload

[David Favor]

net3# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.10
Release: 14.10
Codename: utopic

Different than https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/669005 which has to do with php5-curl. I deinstalled php5-curl + had no effect.

Using trace8 provides no additional detail.

Unable to get apache to generate a core dump, even after reading many articles + trying many command line incantations.

Someone tell me how to get a core dump + I'll post the stack trace of failure.

Thanks.

[David Favor (davidfavor)]

From /var/log/apache2/error.log

[Sun Feb 01 11:39:32.464302 2015] [mpm_prefork:notice] [pid 14428] AH00171: Graceful restart requested, doing restart
[Sun Feb 01 11:39:32.475487 2015] [core:trace3] [pid 14428] core.c(3051): Setting LogLevel for all modules to trace8
[Sun Feb 01 11:39:32.502279 2015] [core:notice] [pid 14428] AH00060: seg fault or similar nasty error detected in the parent process

[David Favor (davidfavor)]

Have narrowed problem down to a php module.

a2dismod php5 + restart + reload works, so now onto figuring out which php5 module is culprit, using apt-get purge on each ph5 module, to ensure all traces of related module cruft is removed.

[David Favor (davidfavor)]

Problem module is php5-librdf, so someone please update this bug report with how to collect a core dump + I'll attach the data for this bug.

Thanks.

[Robie Basak (racb)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

Reassinging to redland-bindings as you've identified the problem to be there. Sorry, I don't have instructions to give you to collect a core dump for Apache specifically.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Franz (franz.pammer)]

Hi,

My sytem is also affected with this bug
14.04 LTS

I don't have installed php5-librdf

ii libapache2-mod-php5 5.5.9+dfsg-1ubuntu4.9
ii php5 5.5.9+dfsg-1ubuntu4.9
ii php5-cli 5.5.9+dfsg-1ubuntu4.9
ii php5-common 5.5.9+dfsg-1ubuntu4.9
ii php5-curl 5.5.9+dfsg-1ubuntu4.9
ii php5-gd 5.5.9+dfsg-1ubuntu4.9
ii php5-intl 5.5.9+dfsg-1ubuntu4.9
ii php5-json 1.3.2-2build1
ii php5-ldap 5.5.9+dfsg-1ubuntu4.9
ii php5-mcrypt 5.4.6-0ubuntu5
ii php5-mysql 5.5.9+dfsg-1ubuntu4.9
ii php5-pspell 5.5.9+dfsg-1ubuntu4.9
ii php5-readline 5.5.9+dfsg-1ubuntu4.9

[Mon Apr 27 16:22:32.665619 2015] [mpm_prefork:notice] [pid 29096] AH00171: Graceful restart requested, doing restart
[Mon Apr 27 16:22:32.738211 2015] [core:notice] [pid 29096] AH00060: seg fault or similar nasty error detected in the parent proces

thx
franz

[Nico Brys (nbrys)]

We are having the same problem with Ubuntu 14.04 and the following modules:

 core_module (static)
 so_module (static)
 watchdog_module (static)
 http_module (static)
 log_config_module (static)
 logio_module (static)
 version_module (static)
 unixd_module (static)
 access_compat_module (shared)
 alias_module (shared)
 auth_basic_module (shared)
 auth_form_module (shared)
 authn_core_module (shared)
 authn_file_module (shared)
 authnz_ldap_module (shared)
 authz_core_module (shared)
 authz_host_module (shared)
 authz_user_module (shared)
 autoindex_module (shared)
 deflate_module (shared)
 dir_module (shared)
 env_module (shared)
 filter_module (shared)
 headers_module (shared)
 ldap_module (shared)
 mime_module (shared)
 mpm_prefork_module (shared)
 negotiation_module (shared)
 php5_module (shared)
 request_module (shared)
 security2_module (shared)
 session_module (shared)
 session_cookie_module (shared)
 session_crypto_module (shared)
 session_dbd_module (shared)
 setenvif_module (shared)
 socache_shmcb_module (shared)
 ssl_module (shared)
 status_module (shared)
 unique_id_module (shared)