Bug#526518: apache2: segfault in ap_mpm_pod_check
Package: apache2.2-common
Version: 2.2.11-3
Severity: normal
I'm using this apache2 instance to run OTRS.
OTRS (see http://www.otrs.org) runs just fine UP TO THE POINT where I activate Apache::DBI.
Once I activated that, apache will crash with signal 11 -- sporadically.
Deactivating Apache::DBI makes the crash disappear. My workaround is to not use Apache::DBI (obviously!)
[Fri May 01 18:54:53 2009] [notice] Apache/2.2.11 (Debian) mod_ssl/2.2.11 OpenSSL/0.9.8g mod_perl/2.0.4 Perl/v5.10.0 configured -- resuming normal operations
[Fri May 01 19:23:26 2009] [notice] child pid 19781 exit signal Segmentation fault (11), possible coredump in /var/core
The core dump gives me the following backtrace:
...
#0 0xb7ef4430 in __kernel_vsyscall ()
(gdb) bt
#0 0xb7ef4430 in __kernel_vsyscall ()
#1 0xb7e62fcb in read () from /lib/i686/cmov/libpthread.so.0
#2 0x08094be4 in ap_mpm_pod_check (pod=0xbb47e40) at /tmp/buildd/apache2-2.2.11/server/mpm/worker/pod.c:54
#3 0x0809291d in child_main (child_num_arg=<value optimized out>) at /tmp/buildd/apache2-2.2.11/server/mpm/worker/worker.c:1267
#4 0x08092ab8 in make_child (s=0x9e1b9b8, slot=0) at /tmp/buildd/apache2-2.2.11/server/mpm/worker/worker.c:1350
#5 0x08093af5 in ap_mpm_run (_pconf=0x9de20a8, plog=0x9e14170, s=0x9e1b9b8) at /tmp/buildd/apache2-2.2.11/server/mpm/worker/worker.c:1384
#6 0x08068fa0 in main (argc=Cannot access memory at address 0x0) at /tmp/buildd/apache2-2.2.11/server/main.c:742
(gdb)
This crash is with apache2-mpm-worker
I also got crashes with apache2-mpm-event
Right now I'm trying with apache2-mpm-prefork
-- Package-specific info:
List of enabled modules from 'apache2 -M':
alias auth_basic authn_file authz_default authz_groupfile
authz_host authz_user autoindex cgi cgid deflate dir env mime
negotiation perl setenvif ssl status
-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.26-1-486
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages apache2 depends on:
ii apache2-mpm-worker 2.2.11-3 Apache HTTP Server - high speed th
apache2 recommends no packages.
apache2 suggests no packages.
Versions of packages apache2.2-common depends on:
ii apache2-utils 2.2.11-3 utility programs for webservers
ii libapr1 1.3.3-3 The Apache Portable Runtime Librar
ii libaprutil1 1.3.4+dfsg-1 The Apache Portable Runtime Utilit
ii libc6 2.9-4 GNU C Library: Shared libraries
ii libldap-2.4-2 2.4.11-1 OpenLDAP libraries
ii libmagic1 5.00-1 File type determination library us
ii libssl0.9.8 0.9.8g-16 SSL shared libraries
ii libuuid1 1.41.3-1 universally unique id library
ii lsb-base 3.2-22 Linux Standard Base 3.2 init scrip
ii mime-support 3.44-1 MIME files 'mime.types' & 'mailcap
ii net-tools 1.60-23 The NET-3 networking toolkit
ii perl 5.10.0-19 Larry Wall's Practical Extraction
ii procps 1:3.2.7-11 /proc file system utilities
ii zlib1g 1:1.2.3.3.dfsg-13 compression library - runtime
-- no debconf information
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