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RE: slapd seg. fault when repeated getpwnam (ITS#1329)

To: openldap-its@OpenLDAP.org
Subject: RE: slapd seg. fault when repeated getpwnam (ITS#1329)
From: Gerry.Morong@compaq.com
Date: Wed, 12 Sep 2001 21:45:01 GMT
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I reran the slapd with the -d 0 and -d 256 but the backtrace looks
similar.   Note that I have attached an email trail I have with Kurt on
this issue for additional information.=20
 <<RE: openldap 2.0.11 - getpwnam>>=20
Backtrace
(gdb) backtrace
#0  0x402d0322 in __libc_send () from /lib/i686/libc.so.6
#1  0x401de5b4 in send (fd=3D3, buf=3D0x8103cf8, n=3D82, flags=3D0)
    at wrapsyscall.c:211
#2  0x402cc22c in vsyslog (pri=3D7,=20
    fmt=3D0x809ebc0 "conn=3D%ld op=3D%ld SEARCH RESULT tag=3D%lu =
err=3D%ld
text=3D%s\n",=20
    ap=3D0x41c31954) at syslog.c:240
#3  0x402cbee7 in syslog (pri=3D7,=20
    fmt=3D0x809ebc0 "conn=3D%ld op=3D%ld SEARCH RESULT tag=3D%lu =
err=3D%ld
text=3D%s\n")
    at syslog.c:102
#4  0x08059e58 in strcpy () at ../sysdeps/generic/strcpy.c:31
#5  0x080734d2 in strcpy () at ../sysdeps/generic/strcpy.c:31
#6  0x08050de3 in strcpy () at ../sysdeps/generic/strcpy.c:31
#7  0x0804fab4 in strcpy () at ../sysdeps/generic/strcpy.c:31
#8  0x080845bd in strcpy () at ../sysdeps/generic/strcpy.c:31
#9  0x401d9bfd in pthread_start_thread (arg=3D0x41c31c00) at =
manager.c:262
(gdb)


Gerry Morong
Electronic Design Automation
ISSG
gerry.morong@compaq.com

 -----Original Message-----
From: 	Pierangelo Masarati [mailto:openldap-its@OpenLDAP.org]=20
Sent:	Wednesday, September 12, 2001 3:57 PM
To:	Morong, Gerry
Subject:	Re: slapd seg. fault when repeated getpwnam (ITS#1329)

This backtrace looks like the parent thread's, that terminates right
after
creating the listener. You need to start slurpd with '-d 0' or above to
keep it alive.

> Back Trace
> (gdb) where
> #0  0x402c990e in __select () from /lib/i686/libc.so.6
> #1  0x00000001 in __strtol_internal (nptr=3D0x0, endptr=3D0x40bbaca4,
base=3D0,=20
>     group=3D1075682130) at eval.c:36
> #2  0x401d9bfd in pthread_start_thread (arg=3D0x40bbac00) at
manager.c:262
> (gdb)

Pierangelo.


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Subject: RE: openldap 2.0.11 - getpwnam
Date: Wed, 12 Sep 2001 13:39:38 -0500
Message-ID: <778E9D0F077BD246A4B1CD040473B898236B28@cceexc15.americas.cpqcorp.net>
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Thread-Topic: openldap 2.0.11 - getpwnam
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From: "Morong, Gerry" <Gerry.Morong@Compaq.com>
To: "Kurt D. Zeilenga" <Kurt@OpenLDAP.org>
Cc: "Pierangelo Masarati" <masarati@aero.polimi.it>,
	<openldap-software@OpenLDAP.org>

I rebuilt them with slapindex and it still fails but with a more verbose
back-trace.

INDEX SETTING FROM SLAPD.CONF
index uid,cn,gidNumber,uidNumber,memberUid eq
index objectClass pres,eq

DEBUG
=3D> equality_candidates
=3D> ldbm_cache_open( "objectClass.dbb", 7, 600 )
<=3D ldbm_cache_open (cache 3)
=3D> key_read
<=3D idl_fetch 2071 ids (2071 max)
<=3D index_read 2071 candidates
<=3D equality_candidates 2071
<=3D filter_candidates 2071
=3D> filter_candidates
        EQUALITY
=3D> equality_candidates
=3D> ldbm_cache_open( "uid.dbb", 7, 600 )
<=3D ldbm_cache_open (cache 4)
=3D> key_read
<=3D index_read 1 candidates
<=3D equality_candidates 1
<=3D filter_candidates 1
<=3D list_candidates 2
<=3D filter_candidates 2
<=3D list_candidates 2
<=3D filter_candidates 2
<=3D list_candidates 1
<=3D filter_candidates 1
entry_rdwr_runlock: ID: 1
=3D=3D=3D=3D> cache_return_entry_r( 1 ): returned (0)
=3D> id2entry_r( 1034 )
=3D> ldbm_cache_open( "id2entry.dbb", 7, 600 )
<=3D ldbm_cache_open (cache 1)
=3D> str2entry
Segmentation fault


BACK TRACE
(gdb) where
#0  0x402d0322 in __libc_send () from /lib/i686/libc.so.6
#1  0x401de5b4 in send (fd=3D3, buf=3D0x41d3c2a0, n=3D84, flags=3D0)
    at wrapsyscall.c:211
#2  0x402cc22c in vsyslog (pri=3D7,=20
    fmt=3D0x809ebc0 "conn=3D%ld op=3D%ld SEARCH RESULT tag=3D%lu =
err=3D%ld
text=3D%s\n",=20
    ap=3D0x465ff954) at syslog.c:240
#3  0x402cbee7 in syslog (pri=3D7,=20
    fmt=3D0x809ebc0 "conn=3D%ld op=3D%ld SEARCH RESULT tag=3D%lu =
err=3D%ld
text=3D%s\n")
    at syslog.c:102
#4  0x08059e58 in strcpy () at ../sysdeps/generic/strcpy.c:31
#5  0x080734d2 in strcpy () at ../sysdeps/generic/strcpy.c:31
#6  0x08050de3 in strcpy () at ../sysdeps/generic/strcpy.c:31
#7  0x0804fab4 in strcpy () at ../sysdeps/generic/strcpy.c:31
#8  0x080845bd in strcpy () at ../sysdeps/generic/strcpy.c:31
#9  0x401d9bfd in pthread_start_thread (arg=3D0x465ffc00) at =
manager.c:262
(gdb)

Gerry Morong
Electronic Design Automation
ISSG
gerry.morong@compaq.com

 -----Original Message-----
From: 	Kurt D. Zeilenga [mailto:Kurt@OpenLDAP.org]=20
Sent:	Wednesday, September 12, 2001 11:20 AM
To:	Morong, Gerry
Cc:	Morong, Gerry; Pierangelo Masarati;
openldap-software@OpenLDAP.org
Subject:	RE: openldap 2.0.11 - getpwnam

At 08:44 AM 2001-09-12, Morong, Gerry wrote:
>Installed OpenLDAP 2.0.14 in place of 2.0.11 and have the same problem
>with segmentation faults when doing repetitive getpwnam from two
>clients.

Did you rebuild indices?

Kurt

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