In our installation slapd will crash with a Segmentation Fault about once a week. It has been seen on the producer while the consumers connect but also on both producer and consumers at random. It seems to be related to authentication with GSSAPI.
syslog produces the followig message:
kernel: [513493.152760] slapd[1610]: segfault at 7fb242df9000 ip 00007fb242ad7122 sp 00007fb127ffd900 error 4 in libcrypto.so.0.9.8[7fb242a61000+168000]
gdb:
Core was generated by usr/sbin/slapd -d 0 -h ldap:/// ldaps:/// -f /local/sukat/conf/slapd.conf'. Program terminated with signal 11, Segmentation fault.
#0 sha1_block_data_order () at sha1-x86_64.s:133
133 sha1-x86_64.s: No such file or directory.
in sha1-x86_64.s
(gdb) bt
#0 sha1_block_data_order () at sha1-x86_64.s:133
#1 0x0000005e17000000 in ?? ()
#2 0x0000000017000000 in ?? ()
#3 0x0000000000000000 in ?? ()
The backtrace is incomplete as the debug packages are broken. Trying to reproduce this bug I trigger another segfault. I will file reports on thease issues in
separate tickets.
ProblemType: Bug
Architecture: amd64
Date: Wed Jan 25 11:13:22 2012
Dependencies:
adduser 3.112ubuntu1
base-files 5.0.0ubuntu20.10.04.4
base-passwd 3.5.22
coreutils 7.4-2ubuntu3
debconf 1.5.28ubuntu4
debconf-i18n 1.5.28ubuntu4
debianutils 3.2.2
dpkg 1.15.5.6ubuntu4.5 [modified: sbin/start-stop-daemon]
findutils 4.4.2-1ubuntu1
gcc-4.4-base 4.4.3-4ubuntu5
libacl1 2.2.49-2
libattr1 1:2.4.44-1
libbz2-1.0 1.0.5-4ubuntu0.2
libc-bin 2.11.1-0ubuntu7.8
libc6 2.11.1-0ubuntu7.8
libcomerr2 1.41.11-1ubuntu2.1
libdb4.7 4.7.25-9
libdb4.8 4.8.24-1ubuntu1
libgcc1 1:4.4.3-4ubuntu5
libgcrypt11 1.4.4-5ubuntu2
libgdbm3 1.8.3-9
libgnutls26 2.8.5-2
libgpg-error0 1.6-1ubuntu2
libgssapi-krb5-2 1.8.1+dfsg-2ubuntu0.10
libk5crypto3 1.8.1+dfsg-2ubuntu0.10
libkeyutils1 1.2-12
libkrb5-3 1.8.1+dfsg-2ubuntu0.10
libkrb5support0 1.8.1+dfsg-2ubuntu0.10
libldap-2.4-2 2.4.21-0ubuntu5.6
liblocale-gettext-perl 1.05-6
libltdl7 2.2.6b-2ubuntu1
libncurses5 5.7+20090803-2ubuntu3
libpam-modules 1.1.1-2ubuntu5.4
libpam0g 1.1.1-2ubuntu5.4
libperl5.10 5.10.1-8ubuntu2.1
libreadline6 6.1-1
libsasl2-2 2.1.23.dfsg1-5ubuntu1
libselinux1 2.0.89-4
libslp1 1.2.1-7.6ubuntu0.1
libstdc++6 4.4.3-4ubuntu5
libtasn1-3 2.4-1
libtext-charwidth-perl 0.04-6
libtext-iconv-perl 1.7-2
libtext-wrapi18n-perl 0.06-7
libwrap0 7.6.q-18
lzma 4.43-14ubuntu2
odbcinst 2.2.11-21
odbcinst1debian1 2.2.11-21
passwd 1:4.1.4.2-1ubuntu2.2
perl 5.10.1-8ubuntu2.1
perl-base 5.10.1-8ubuntu2.1
perl-modules 5.10.1-8ubuntu2.1
psmisc 22.10-1
readline-common 6.1-1
sensible-utils 0.0.1ubuntu3
tzdata 2011n-0ubuntu0.10.04
unixodbc 2.2.11-21
zlib1g 1:1.2.3.3.dfsg-15ubuntu1
DistroRelease: Ubuntu 10.04
NonfreeKernelModules: openafs
Package: slapd 2.4.21-0ubuntu5.6
PackageArchitecture: amd64
ProcEnviron:
SHELL=/bin/bash
PATH=(custom, no user)
LANG=en_GB.UTF-8
LC_CTYPE=en_GB.UTF-8
ProcVersionSignature: Ubuntu 2.6.32-37.81-generic 2.6.32.49+drm33.21
SourcePackage: openldap
Tags: lucid
Uname: Linux 2.6.32-37-generic x86_64
Status changed to 'Confirmed' because the bug affects multiple users.