Since apache2 versions > 2.0.52 I encounter segmentation faults and messages about corrupted linked lists (in /var/log/apache2/error_log): [Thu Jun 30 18:16:26 2005] [notice] Digest: generating secret for digest authentication ... [Thu Jun 30 18:16:26 2005] [notice] Digest: done [Thu Jun 30 18:16:28 2005] [notice] LDAP: Built with OpenLDAP LDAP SDK [Thu Jun 30 18:16:28 2005] [notice] LDAP: SSL support available [Thu Jun 30 18:16:28 2005] [notice] Apache/2.0.54 (Gentoo/Linux) mod_ssl/2.0.54 OpenSSL/0.9.7e DAV/2 SVN/1.1.3 PHP/4.3.11 configured -- resuming normal operations [Thu Jun 30 18:21:37 2005] [notice] child pid 18114 exit signal Segmentation fault (11) *** glibc detected *** corrupted double-linked list: 0xb7c45a7c *** [Thu Jun 30 18:21:38 2005] [notice] child pid 18115 exit signal Aborted (6) *** glibc detected *** corrupted double-linked list: 0xb7c45a7c *** [Thu Jun 30 18:21:41 2005] [notice] child pid 18123 exit signal Aborted (6) *** glibc detected *** corrupted double-linked list: 0xb7c45a7c *** [Thu Jun 30 18:21:44 2005] [notice] child pid 18124 exit signal Aborted (6) [Thu Jun 30 18:21:57 2005] [notice] child pid 18113 exit signal Segmentation fault (11) *** glibc detected *** corrupted double-linked list: 0x08402a60 *** [Thu Jun 30 18:23:05 2005] [notice] child pid 18112 exit signal Aborted (6) *** glibc detected *** corrupted double-linked list: 0x083cc350 *** [Thu Jun 30 18:23:08 2005] [notice] child pid 18116 exit signal Aborted (6) *** glibc detected *** corrupted double-linked list: 0x08411558 *** [Thu Jun 30 18:23:21 2005] [notice] child pid 29449 exit signal Aborted (6) *** glibc detected *** corrupted double-linked list: 0x085a4cb8 *** [Thu Jun 30 18:25:00 2005] [notice] child pid 31821 exit signal Aborted (6) *** glibc detected *** corrupted double-linked list: 0x0831f0a0 *** [Thu Jun 30 18:25:03 2005] [notice] child pid 30726 exit signal Aborted (6) With the latest stable 2.0.52 the problem goes away. I haven't tested apache2 without PHP and/or Subversion, so I cannot say if it's a) apache2's fault b) mod_php's fault c) Subversion's fault (very unlikely, as it hasn't been involved in the tests) d) any other module's fault (e.g. the OpenLDAP authentication) However, all modules and web applications work flawlessly in 2.0.52. I re-emerged mod_php, subversion, and horde, but the bugs did not go away. If you have some proposals how to track down the error, I'll try it... Perhaps it's a well-known issue, but I haven't found anything about it in the database. Reproducible: Sometimes Steps to Reproduce: 1. Upgrade to 2.0.54r7 (the current stable one for x86) 2. Restart the server properly 3. Try to retrieve a web page from the server several times. In my case it was the start page of the Horde web application. If you try long enough (max. one minute) you encounter the errors I described above. Actual Results: See the messages above. Another example: [Fri May 13 08:58:42 2005] [notice] Digest: generating secret for digest authentication ... [Fri May 13 08:58:42 2005] [notice] Digest: done [Fri May 13 08:58:43 2005] [notice] LDAP: Built with OpenLDAP LDAP SDK [Fri May 13 08:58:43 2005] [notice] LDAP: SSL support available [Fri May 13 08:58:43 2005] [notice] Apache/2.0.54 (Gentoo/Linux) mod_ssl/2.0.54 OpenSSL/0.9.7e DAV/2 SVN/1.1.3 PHP/4.3.11 configured -- resuming normal operations [Fri May 13 08:59:35 2005] [error] [client 192.168.1.2] File does not exist: /var/www/localhost/htdocs/public/favicon.ico *** glibc detected *** corrupted double-linked list: 0xb7c5ba7c *** [Fri May 13 09:01:45 2005] [notice] child pid 2222 exit signal Aborted (6) *** glibc detected *** corrupted double-linked list: 0xb7c5ba7c *** [Fri May 13 09:02:07 2005] [notice] child pid 2106 exit signal Aborted (6) *** glibc detected *** corrupted double-linked list: 0x083b28a0 *** [Fri May 13 09:02:09 2005] [notice] child pid 2304 exit signal Aborted (6) *** glibc detected *** corrupted double-linked list: 0xb7c5ba7c *** [Fri May 13 09:02:12 2005] [notice] child pid 2103 exit signal Aborted (6) [Fri May 13 09:04:53 2005] [notice] child pid 2104 exit signal Segmentation fault (11) *** glibc detected *** corrupted double-linked list: 0xb7c5ba7c *** [Fri May 13 09:04:54 2005] [notice] child pid 2107 exit signal Aborted (6) *** glibc detected *** corrupted double-linked list: 0x08394ab8 *** [Fri May 13 09:04:55 2005] [notice] child pid 8419 exit signal Aborted (6) [Fri May 13 09:06:10 2005] [notice] child pid 2310 exit signal Segmentation fault (11) Expected Results: No aborts, no corrupted linked lists. Portage 2.0.51.19 (default-linux/x86/2005.0, gcc-3.3.5-20050130, glibc-2.3.4.20041102-r1, 2.6.11-gentoo-r11 i686) ================================================================= System uname: 2.6.11-gentoo-r11 i686 Pentium II (Deschutes) Gentoo Base System version 1.6.12 Python: dev-lang/python-2.3.5 [2.3.5 (#1, Apr 28 2005, 09:42:05)] dev-lang/python: 2.3.5 sys-apps/sandbox: [Not Present] sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.5, 1.8.5-r3, 1.6.3, 1.7.9-r1, 1.4_p6, 1.9.5 sys-devel/binutils: 2.15.92.0.2-r10 sys-devel/libtool: 1.5.16 virtual/os-headers: 2.6.8.1-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-O2 -march=i686 -fomit-frame-pointer -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -march=i686 -fomit-frame-pointer -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/Linux/distributions/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 X509 acl alsa apache2 apm berkdb bitmap-fonts bzlib crypt cups curl emboss encode fam foomaticdb gd gdbm gif imagemagick imap innodb ipv6 java jpeg ldap libg++ libwww mmap mp3 mysql mysqli ncurses nls oss pam pdflib perl php png postgres python readline samba session spell ssl tcpd tiff truetype truetype-fonts type1-fonts wmf xml2 zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTDIR_OVERLAY
Created attachment 62394 [details] /etc/xml/catalog working sample from my machine. I don't have a clue how the file is generated.
Broken mod_ldap... *** This bug has been marked as a duplicate of 94583 ***
