Package: slapd
Version: 2.4.40+dfsg-1+deb8u1
Severity: important
Dear Maintainer,
* What led up to the situation?
Our ldap Admin reports that he was using Apache Directory Studio
copying a user record when slapd crashed. We had two crashes today
already.
* What exactly did you do (or not do) that was effective (or
ineffective)?
So far we weren't able to isolate and properly reproduce the issue but
we could gather the following stacktrace from gdb.
Program received signal SIGPIPE, Broken pipe.
(gdb) bt full
#0 0x00007f652b626a7d in write () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1 0x00007f652d0370f8 in ?? () from /usr/lib/x86_64-linux-gnu/liblber-2.4.so.2
No symbol table info available.
#2 0x00007f652c2e45d6 in ?? () from
/usr/lib/x86_64-linux-gnu/libgnutls-deb0.so.28
No symbol table info available.
#3 0x00007f652c2df551 in ?? () from
/usr/lib/x86_64-linux-gnu/libgnutls-deb0.so.28
No symbol table info available.
#4 0x00007f652c2ffa98 in gnutls_alert_send () from
/usr/lib/x86_64-linux-gnu/libgnutls-deb0.so.28
No symbol table info available.
#5 0x00007f652c2e1389 in gnutls_bye () from
/usr/lib/x86_64-linux-gnu/libgnutls-deb0.so.28
No symbol table info available.
#6 0x00007f652d276822 in ?? () from
/usr/lib/x86_64-linux-gnu/libldap_r-2.4.so.2
No symbol table info available.
#7 0x00007f652d037fe2 in ber_int_sb_close () from
/usr/lib/x86_64-linux-gnu/liblber-2.4.so.2
No symbol table info available.
#8 0x00007f652d0380d4 in ber_sockbuf_free () from
/usr/lib/x86_64-linux-gnu/liblber-2.4.so.2
No symbol table info available.
#9 0x00007f652d6e72c8 in slapd_remove (s=70, sb=0x7f650811f530,
wasactive=<optimized out>, wake=0, locked=<optimized out>) at
../../../../servers/slapd/daemon.c:908
waswriter = <optimized out>
wasreader = <optimized out>
id = 0
__PRETTY_FUNCTION__ = "slapd_remove"
#10 0x00007f652d6ec116 in connection_destroy (c=<optimized out>) at
../../../../servers/slapd/connection.c:705
connid = 1080
close_reason = 0x7f652d784740 <conn_lost_str> "connection lost"
sb = 0x7f650811f530
sd = 70
#11 connection_close (c=0x7f652e599230) at
../../../../servers/slapd/connection.c:855
No locals.
#12 0x00007f652d6ed195 in connection_read (cri=<optimized out>, s=<optimized
out>) at ../../../../servers/slapd/connection.c:1477
c = 0x7f652e599230
#13 connection_read_thread (ctx=0x46, argv=0x7f65001bba10) at
../../../../servers/slapd/connection.c:1284
No locals.
#14 0x00007f652d24dc62 in ?? () from
/usr/lib/x86_64-linux-gnu/libldap_r-2.4.so.2
No symbol table info available.
#15 0x00007f652b6200a4 in start_thread (arg=0x7f6515ffc700) at
pthread_create.c:309
__res = <optimized out>
pd = 0x7f6515ffc700
now = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140072137508608,
4154731789372546579, 0, 140072530411616, 1, 140072137508608,
-4079494405578105325, -4079482495802221037}, mask_was_saved = 0}}, priv = {pad
= {0x0, 0x0, 0x0, 0x0},
data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
not_first_call = <optimized out>
pagesize_m1 = <optimized out>
sp = <optimized out>
freesize = <optimized out>
__PRETTY_FUNCTION__ = "start_thread"
#16 0x00007f652b35504d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
(gdb) q
* What outcome did you expect instead?
slapd should not crash during disconnect.
I appreciate any input.
-- System Information:
Debian Release: 8.2
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.16.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=zh_CN.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages slapd depends on:
ii adduser 3.113+nmu3
ii coreutils 8.23-4
ii debconf [debconf-2.0] 1.5.56
ii libc6 2.19-18+deb8u1
ii libdb5.3 5.3.28-9
ii libgnutls-deb0-28 3.3.8-6+deb8u3
ii libldap-2.4-2 2.4.40+dfsg-1+deb8u1
ii libltdl7 2.4.2-1.11
ii libodbc1 2.3.1-3
ii libperl5.20 5.20.2-3+deb8u1
ii libsasl2-2 2.1.26.dfsg1-13+deb8u1
ii libslp1 1.2.1-10+deb8u1
ii libwrap0 7.6.q-25
ii lsb-base 4.1+Debian13+nmu1
ii multiarch-support 2.19-18+deb8u1
ii perl [libmime-base64-perl] 5.20.2-3+deb8u1
ii psmisc 22.21-2
Versions of packages slapd recommends:
ii libsasl2-modules 2.1.26.dfsg1-13+deb8u1
Versions of packages slapd suggests:
ii ldap-utils 2.4.40+dfsg-1+deb8u1
ii libsasl2-modules-gssapi-mit 2.1.26.dfsg1-13+deb8u1
-- Configuration Files:
/etc/default/slapd changed:
SLAPD_CONF=
SLAPD_USER="openldap"
SLAPD_GROUP="openldap"
SLAPD_PIDFILE=
SLAPD_SERVICES="ldaps:/// ldap:/// ldapi:///"
SLAPD_SENTINEL_FILE=/etc/ldap/noslapd
export KRB5_KTNAME=/etc/ldap/sasl2/krb5.keytab
SLAPD_OPTIONS=""
/etc/ldap/schema/README [Errno 13] Permission denied: u'/etc/ldap/schema/README'
/etc/ldap/schema/corba.schema [Errno 13] Permission denied:
u'/etc/ldap/schema/corba.schema'
/etc/ldap/schema/core.ldif [Errno 13] Permission denied:
u'/etc/ldap/schema/core.ldif'
/etc/ldap/schema/core.schema [Errno 13] Permission denied:
u'/etc/ldap/schema/core.schema'
/etc/ldap/schema/cosine.schema [Errno 13] Permission denied:
u'/etc/ldap/schema/cosine.schema'
/etc/ldap/schema/dyngroup.schema [Errno 13] Permission denied:
u'/etc/ldap/schema/dyngroup.schema'
/etc/ldap/schema/inetorgperson.schema [Errno 13] Permission denied:
u'/etc/ldap/schema/inetorgperson.schema'
/etc/ldap/schema/java.schema [Errno 13] Permission denied:
u'/etc/ldap/schema/java.schema'
/etc/ldap/schema/misc.schema [Errno 13] Permission denied:
u'/etc/ldap/schema/misc.schema'
/etc/ldap/schema/nis.schema [Errno 13] Permission denied:
u'/etc/ldap/schema/nis.schema'
/etc/ldap/schema/openldap.ldif [Errno 13] Permission denied:
u'/etc/ldap/schema/openldap.ldif'
/etc/ldap/schema/openldap.schema [Errno 13] Permission denied:
u'/etc/ldap/schema/openldap.schema'
/etc/ldap/schema/ppolicy.schema [Errno 13] Permission denied:
u'/etc/ldap/schema/ppolicy.schema'
-- debconf information:
slapd/dump_database_destdir: /var/backups/slapd-VERSION
slapd/dump_database: when needed
slapd/domain: aksw.org
slapd/password_mismatch:
slapd/allow_ldap_v2: false
slapd/upgrade_slapcat_failure:
slapd/backend: HDB
shared/organization: aksw.org
slapd/move_old_database: true
slapd/unsafe_selfwrite_acl:
slapd/purge_database: false
slapd/no_configuration: false
slapd/invalid_config: true
