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Re: (ITS#7175) Segv during cache entry delete pcache+back-mdb

To: openldap-its@OpenLDAP.org
Subject: Re: (ITS#7175) Segv during cache entry delete pcache+back-mdb
From: quanah@zimbra.com
Date: Mon, 20 Feb 2012 00:31:27 GMT
Auto-submitted: auto-generated (OpenLDAP-ITS)
Looks like a dupe of 7174 to me.

--Quanah

On Feb 19, 2012, at 3:26 PM, mhardin@symas.com wrote:

> Full_Name: Matthew Hardin
> Version: 2.4.29
> OS: Linux (Debian 6)
> URL: ftp://ftp.openldap.org/incoming/
> Submission from: (NULL) (170.215.93.127)
> 
> 
> During a cache delete operation (TTL expired) a segv is raised.
> 
> Log and backtrace follow:
> 
> 
> 4f41809b DELETING ENTRY TEMPLATE=7d824524-ef99-1030-9d9b-fbe800313ae3
> 4f41809b ==> mdb_delete: cn=managers,ou=group,dc=example,dc=com
> 4f41809b slap_queue_csn: queing 0x7fffb3e36150
> 20120219230707.188204Z#000000#000#000000
> 4f41809b mdb_dn2entry("ou=group,dc=example,dc=com")
> 4f41809b => mdb_dn2id("ou=group,dc=example,dc=com")
> 4f41809b <= mdb_dn2id: got id=0x4
> 4f41809b => mdb_entry_decode:
> 4f41809b <= mdb_entry_decode
> 4f41809b mdb_dn2entry("cn=managers,ou=group,dc=example,dc=com")
> 4f41809b => mdb_dn2id("cn=managers,ou=group,dc=example,dc=com")
> 4f41809b <= mdb_dn2id: got id=0x5
> 4f41809b => mdb_entry_decode:
> 4f41809b <= mdb_entry_decode
> 4f41809b => access_allowed: delete access to "ou=Group,dc=example,dc=com"
> "children" requested
> 4f41809b <= root access granted
> 4f41809b => access_allowed: delete access granted by manage(=mwrscxd)
> 4f41809b => access_allowed: delete access to
> "cn=managers,ou=Group,dc=example,dc=com" "entry" requested
> 4f41809b <= root access granted
> 4f41809b => access_allowed: delete access granted by manage(=mwrscxd)
> 4f41809b => mdb_dn2id_delete 0x5
> 4f41809b <= mdb_dn2id_delete 0x5: 0
> 4f41809b => index_entry_del( 5, "cn=managers,ou=Group,dc=example,dc=com" )
> 4f41809b mdb_idl_delete_keys: 5 [0096defd]
> 4f41809b mdb_idl_delete_keys: 5 [8cc4ebff]
> 
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0x7fffb3e37700 (LWP 12696)]
> 0x0000000000586b8b in lutil_str2bin (in=0x7fffb3e35e10, out=0x7fffb3e35e00, 
>    ctx=0xbb8b70) at /home/matth/suum4x/ldap24/libraries/liblutil/utils.c:812
> 812    /home/matth/suum4x/ldap24/libraries/liblutil/utils.c: No such file or
> directory.
> 
> (gdb) thr apply all bt
> 
> Thread 3 (Thread 0x7fffb3e37700 (LWP 12696)):
> #0  0x0000000000586b8b in lutil_str2bin (in=0x7fffb3e35e10, 
>    out=0x7fffb3e35e00, ctx=0xbb8b70)
>    at /home/matth/suum4x/ldap24/libraries/liblutil/utils.c:812
> #1  0x000000000048fe9f in integerVal2Key (in=0xbb9370, key=0xbb93c8, 
>    tmp=0x7fffb3e35eb0, ctx=0xbb8b70)
>    at /home/matth/suum4x/ldap24/servers/slapd/schema_init.c:2545
> #2  0x000000000049029c in integerIndexer (use=163, flags=4, syntax=0x89e3f0, 
>    mr=0x8a3c50, prefix=0x8b1158, values=0xbb9370, keysp=0x7fffb3e35f90, 
>    ctx=0xbb8b70) at /home/matth/suum4x/ldap24/servers/slapd/schema_init.c:2634
> #3  0x000000000053d589 in indexer (op=0x7fffb3e36480, txn=0xccd410, 
>    ai=0x91f8c0, ad=0x8b1280, atname=0x8b1158, vals=0xbb9370, id=5, opid=2, 
>    mask=4) at /home/matth/suum4x/ldap24/servers/slapd/back-mdb/index.c:211
> #4  0x000000000053d96a in index_at_values (op=0x7fffb3e36480, txn=0xccd410, 
>    ad=0x8b1280, type=0x8b10f0, tags=0x8b12a0, vals=0xbb9370, id=5, opid=2)
>    at /home/matth/suum4x/ldap24/servers/slapd/back-mdb/index.c:337
> #5  0x000000000053daf1 in mdb_index_values (op=0x7fffb3e36480, txn=0xccd410, 
>    desc=0x8b1280, vals=0xbb9370, id=5, opid=2)
>    at /home/matth/suum4x/ldap24/servers/slapd/back-mdb/index.c:386
> #6  0x000000000053dfb9 in mdb_index_entry (op=0x7fffb3e36480, txn=0xccd410, 
>    opid=2, e=0xbb9178)
>    at /home/matth/suum4x/ldap24/servers/slapd/back-mdb/index.c:558
> #7  0x00000000005324e1 in mdb_delete (op=0x7fffb3e36480, rs=0x7fffb3e36340)
>    at /home/matth/suum4x/ldap24/servers/slapd/back-mdb/delete.c:348
> #8  0x0000000000554935 in remove_query_data (op=0x7fffb3e36480, 
>    query_uuid=0xcc3090)
>    at /home/matth/suum4x/ldap24/servers/slapd/overlays/pcache.c:1838
> #9  0x0000000000559ce4 in consistency_check (ctx=0x7fffb3e36b90, arg=0x995050)
>    at /home/matth/suum4x/ldap24/servers/slapd/overlays/pcache.c:3579
> #10 0x00007ffff7b8fb32 in ldap_int_thread_pool_wrapper (xpool=0x8b3ae0)
>    at /home/matth/suum4x/ldap24/libraries/libldap_r/tpool.c:688
> #11 0x00007ffff66f98ba in start_thread () from /lib/libpthread.so.0
> #12 0x00007ffff646102d in clone () from /lib/libc.so.6
> #13 0x0000000000000000 in ?? ()
> 
> Thread 2 (Thread 0x7fffb4638700 (LWP 12695)):
> #0  0x00007ffff6461623 in epoll_wait () from /lib/libc.so.6
> #1  0x000000000043e986 in slapd_daemon_task (ptr=0x7fffffffe528)
>    at /home/matth/suum4x/ldap24/servers/slapd/daemon.c:2539
> #2  0x00007ffff66f98ba in start_thread () from /lib/libpthread.so.0
> #3  0x00007ffff646102d in clone () from /lib/libc.so.6
> #4  0x0000000000000000 in ?? ()
> 
> ---Type <return> to continue, or q <return> to quit---
> Thread 1 (Thread 0x7ffff7fef700 (LWP 12692)):
> #0  0x00007ffff66fabe5 in pthread_join () from /lib/libpthread.so.0
> #1  0x00007ffff7b91040 in ldap_pvt_thread_join (thread=140736219809536, 
>    thread_return=0x0)
>    at /home/matth/suum4x/ldap24/libraries/libldap_r/thr_posix.c:197
> #2  0x000000000043fab8 in slapd_daemon ()
>    at /home/matth/suum4x/ldap24/servers/slapd/daemon.c:2930
> #3  0x000000000041d43b in main (argc=3, argv=0x7fffffffe778)
>    at /home/matth/suum4x/ldap24/servers/slapd/main.c:1011
> (gdb) 
> 
> ## 
> ## SUUM v4 slapd Configuration File. Adjust settings as needed for your
> ## deployment.
> ##
> include        "/opt/suum/etc/schema/core.schema"
> include        "/opt/suum/etc/schema/cosine.schema"
> include        "/opt/suum/etc/schema/inetorgperson.schema"
> include        "/opt/suum/etc/schema/misc.schema"
> include        "/opt/suum/etc/schema/rfc2307bis.schema"
> include        "/opt/suum/etc/schema/ldapns.schema"
> 
> #TLSCACertificateFile "/opt/suum/ssl/cacert.pem"
> 
> pidfile            "/var/symas/suum/slapd.pid"
> argsfile        "/var/symas/suum/slapd.args"
> 
> modulepath    "/opt/suum/lib64/modules"
> moduleload    nssov.la
> 
> access to dn="" by * read
> access to *
>    by self write
>    by users read
>    by anonymous auth
> 
> database    ldap
> suffix        "dc=example,dc=com"
> rootdn        "dc=example,dc=com"
> uri        ldap://xxxxxxx
> idassert-bind    bindmethod=simple
>        binddn=cn=proxy,ou=restricted,dc=example,dc=com
>        credentials=secret
> 
> overlay    nssov
> nssov-pam userhost userservice usergroup
> 
> nssov-ssd passwd    ldap:///ou=People,dc=example,dc=com??one
> nssov-ssd shadow    ldap:///ou=People,dc=example,dc=com??one
> nssov-ssd group     ldap:///ou=Group,dc=example,dc=com??one
> nssov-ssd hosts     ldap:///ou=Hosts,dc=example,dc=com??one
> nssov-ssd services  ldap:///ou=Services,dc=example,dc=com??one
> nssov-ssd networks  ldap:///ou=Networks,dc=example,dc=com??one
> nssov-ssd protocols ldap:///ou=Protocols,dc=example,dc=com??one
> nssov-ssd rpc       ldap:///ou=Rpc,dc=example,dc=com??one
> nssov-ssd ethers    ldap:///ou=Hosts,dc=example,dc=com??one
> nssov-ssd netgroup  ldap:///ou=Netgroup,dc=example,dc=com??one
> nssov-ssd aliases   ldap:///ou=Aliases,dc=example,dc=com??one
> 
> overlay pcache
> response-callback head
> 
> pcache  mdb 500000 11 1000 300
> 
> pcachePersist FALSE
> 
> pcacheAttrset 0 cn uid uidNumber gidNumber
>                  homeDirectory userPassword loginShell
>                  gecos description objectClass
> pcacheAttrset 1 uid userPassword shadowLastChange shadowMin
>                  shadowMax shadowWarning shadowInactive
>                  shadowExpire shadowFlag description objectClass
> pcacheAttrset 2 cn gidNumber userPassword memberUid
>                  uniqueMember description objectClass
> pcacheAttrset 3 cn ipHostNumber l description
>                  manager objectClass
> pcacheAttrset 4 cn ipServicePort ipServiceProtocol description
>                  objectClass
> pcacheAttrset 5 cn ipNetworkNumber ipNetmaskNumber l
>                  description manager objectClass
> pcacheAttrset 6 cn ipProtocolNumber description objectClass
> 
> pcacheAttrset 7 cn oncRpcNumber description objectClass
> 
> pcacheAttrset 8 cn macAddress objectClass
> 
> pcacheAttrset 9 cn nisNetgroupTriple memberNisNetgroup description
>                  objectClass
> pcacheAttrset 10 cn rfc822MailMember objectClass
> 
> pcacheTemplate
>  (&(objectClass=)(uid=))                               0 60
> 
> pcacheTemplate
>  (&(objectClass=)(uidNumber=))                         0 60
> 
> pcacheTemplate
>  (objectClass=)                                        0 60
> 
> pcacheTemplate
>  (&(objectClass=)(uid=))                               1 60
> 
> pcacheTemplate
>  (objectClass=)                                        2 60
> 
> pcacheTemplate
>  (&(objectClass=)(cn=))                                2 60
> 
> pcacheTemplate
>  (&(objectClass=)(gidNumber=))                         2 60
> 
> pcacheTemplate
>  (&(objectClass=)(|(memberUid=)(uniqueMember=))        2 60
> 
> pcacheTemplate
>  (objectClass=)                                        3 60
> 
> pcacheTemplate
>  (&(objectClass=)(cn=))                                3 60
> 
> pcacheTemplate
>  (&(objectClass=)(ipHostNumber=))                      3 60
> 
> pcacheTemplate
>  (objectClass=)                                        4 60
> 
> pcacheTemplate
>  (&(objectClass=)(cn=))                                4 60
> 
> pcacheTemplate
>  (&(objectClass=)(ipServicePort=))                     4 60
> 
> pcacheTemplate
>  (&(objectClass=)(cn=)(ipServiceProtocol=))            4 60
> 
> pcacheTemplate
>  (&(objectClass=)(ipServicePort=)(ipServiceProtocol=)) 4 60
> 
> pcacheTemplate
>  (objectClass=)                                        5 60
> 
> pcacheTemplate
>  (&(objectClass=)(cn=))                                5 60
> 
> pcacheTemplate
>  (&(objectClass=)(ipNetworkNumber=))                   5 60
> 
> pcacheTemplate
>  (objectClass=)                                        6 60
> 
> pcacheTemplate
>  (&(objectClass=)(cn=))                                6 60
> 
> pcacheTemplate
>  (&(objectClass=)(ipProtocolNumber=))                  6 60
> 
> pcacheTemplate
>  (objectClass=)                                        7 60
> 
> pcacheTemplate
>  (&(objectClass=)(cn=))                                7 60
> 
> pcacheTemplate
>  (&(objectClass=)(oncRpcNumber=))                      7 60
> 
> pcacheTemplate
>  (&(objectClass=)(cn=))                                8 60
> 
> pcacheTemplate
>  (&(objectClass=)(macAddress=))                        8 60
> 
> pcacheTemplate
>  (&(objectClass=)(cn=))                                9 60
> 
> pcacheTemplate
>  (&(objectClass=)(cn=))                               10 60
> 
> directory    "/var/symas/suum/cache"
> 
> maxsize 1073741824
> 
> index    default        eq
> index    objectClass
> index    cn,uid,uidNumber,gidNumber
> index    memberUid,uniqueMember
> index    ipHostNumber,ipServicePort,ipServiceProtocol
> index    ipNetworkNumber,ipProtocolNumber
> index    oncRpcNumber,macAddress
> 
> # Monitor database
> database    monitor
>
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