Re: (ITS#4300) slapd crash with monitor backend

[lalot@univ-aix.fr]

OK.

Here are some news: it confirms the problem. I have a gdb trace
same thing on the fresh 2.3.15

   (gdb) bt
   #0  0x402f583b in raise () from /lib/tls/libc.so.6
   #1  0x402f6fa2 in abort () from /lib/tls/libc.so.6
   #2  0x402ef2df in __assert_fail () from /lib/tls/libc.so.6
   #3  0x0812191e in monitor_cache_dup ()
   (gdb)


and on the slapd terminal:

   => send_search_entry: conn 10 dn="cn=Backend
   5,cn=Backends,cn=Monitor" (attrsOnly)
   ber_flush: 46 bytes to sd 13
   <= send_search_entry: conn 10 exit.
   => send_search_entry: conn 10 dn="cn=Backend
   6,cn=Backends,cn=Monitor" (attrsOnly)
   ber_flush: 46 bytes to sd 13
   <= send_search_entry: conn 10 exit.
   send_ldap_result: conn=10 op=2 p=3
   send_ldap_response: msgid=3 tag=101 err=0
   ber_flush: 14 bytes to sd 13
   connection_get(13): got connid=10
   connection_read(13): checking for input on id=10
   ber_get_next
   ber_get_next: tag 0x30 len 82 contents:
   ber_get_next
   do_search
   ber_get_next on fd 13 failed errno=11 (Resource temporarily unavailable)
   ber_scanf fmt ({miiiib) ber:
    >>> dnPrettyNormal: <cn=Connection 9,cn=Connections,cn=Monitor>
   => ldap_bv2dn(cn=Connection 9,cn=Connections,cn=Monitor,0)
   ldap_err2string
   <= ldap_bv2dn(cn=Connection 9,cn=Connections,cn=Monitor)=0 Success
   => ldap_dn2bv(272)
   ldap_err2string
   <= ldap_dn2bv(cn=Connection 9,cn=Connections,cn=Monitor)=0 Success
   => ldap_dn2bv(272)
   ldap_err2string
   <= ldap_dn2bv(cn=connection 9,cn=connections,cn=monitor)=0 Success
   <<< dnPrettyNormal: <cn=Connection 9,cn=Connections,cn=Monitor>,
   <cn=connection 9,cn=connections,cn=monitor>
   ber_scanf fmt (m) ber:
   ber_scanf fmt ({M}}) ber:
   ==> limits_get: conn=10 op=3 dn="cn=adm,dc=univmed,dc=fr"
   => monitor_back_search
   slapd: cache.c:114: monitor_cache_lock: Assertion `e != ((void *)0)'
   failed.


Compile options:
export CFLAGS="-O3 -fomit-frame-pointer -mcpu=pentiumpro -march=i686 
-ffast-math -D_REENTRANT -fPIC"
export LDFLAGS=-lcrypt
./configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/sbin 
--enable-ldbm --sbindir=/usr/sbin\
--enable-ldbm-api=berkeley --enable-dynamic --enable-crypt 
--enable-monitor --with-monitor-module=static\
--enable-shared --without-kerberos --enable-password --enable-local 
--without-cyrus-sasl --with-tls\
--mandir=/usr/share/man



Kurt D. Zeilenga a écrit :

> You should see if any of the changes since 2.3.11 have
> addressed this.  That is, you should try to reproduce
> the problem using 2.3.14 (or .15 when its released,
> or OPENLDAP_REL_ENG_2_3).
>
> Kurt
>
> At 03:22 AM 1/4/2006, lalot@univ-aix.fr wrote:
>  
>
> > Full_Name: LALOT Dominique
> > Version: 2.3.11 bdb 4.3
> > OS: Linux 2.6 (debian stable)
> > URL: ftp://ftp.openldap.org/incoming/
> > Submission from: (NULL) (193.50.125.9)
> >
> >
> > database monitor
> > access to dn.subtree=cn=monitor
> >    by dn.exact=cn=adm,dc=xxx,dc=fr read
> >    by * none
> >
> > Using phpldapdmin 0.9.5 as a client, I can log in cn=monitor
> > see the branches
> > I open connections, then trying to see something under, see 3 branches
> > Clic the first and slapd crash.. Don't know how to debug (get a core dump?)
> >
> > Same if I do the test in some other branch
> >
> > Last extract of the logs:
> >
> > Jan  4 12:13:42 anuaire slapd[4094]: conn=23 op=4 SRCH attr=objectClass
> > Jan  4 12:13:42 anuaire slapd[4094]: conn=23 op=4 SEARCH RESULT tag=101 err=0
> > nentries=1 text=
> > Jan  4 12:13:42 anuaire slapd[4094]: conn=23 op=5 SRCH
> > base="cn=Current,cn=Connections,cn=Monitor" scope=0 deref=1
> > filter="(objectClass=*)"
> > Jan  4 12:13:42 anuaire slapd[4094]: conn=23 op=5 SRCH attr=objectClass
> > Jan  4 12:13:42 anuaire slapd[4094]: conn=23 op=5 SEARCH RESULT tag=101 err=0
> > nentries=1 text=
> > Jan  4 12:13:42 anuaire slapd[4094]: conn=23 op=6 UNBIND
> > Jan  4 12:13:42 anuaire slapd[4094]: conn=23 fd=18 closed
> > Jan  4 12:13:45 anuaire slapd[4094]: conn=24 fd=18 ACCEPT from
> > IP=127.0.0.1:32988 (IP=0.0.0.0:389)
> > Jan  4 12:13:45 anuaire slapd[4094]: conn=24 op=0 BIND dn="cn=adm,dc=xx,dc=fr"
> > method=128
> > Jan  4 12:13:45 anuaire slapd[4094]: conn=24 op=0 BIND dn="cn=adm,dc=xx,dc=fr"
> > mech=SIMPLE ssf=0
> > Jan  4 12:13:45 anuaire slapd[4094]: conn=24 op=0 RESULT tag=97 err=0 text=
> > Jan  4 12:13:45 anuaire slapd[4094]: conn=24 op=1 SRCH base="cn=Connection
> > 23,cn=Connections,cn=Monitor" scope=0 deref=1 filter="(objectClass=*)"
> > Jan  4 12:13:45 anuaire slapd[4094]: conn=24 op=1 SRCH attr=objectClass
> >    
>
>
>  

--
Dominique LALOT 
Ingénieur Système Réseau CISCAM Pole Réseau
Université de la Méditerranée http://annuaire.univmed.fr/showuser.php?uid=lalot