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This GDB was configured as "i586-suse-linux"...
Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) run -i -M single
Starting program: /usr/local/samba/sbin/samba -i -M single
[Thread debugging using libthread_db enabled]
[New Thread -1211712736 (LWP 4802)]
samba version 4.0.0alpha9-GIT-e595ba2 started.
Copyright Andrew Tridgell and the Samba Team 1992-2009
samba: using 'single' process model

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1211712736 (LWP 4802)]
0x0847622b in ldb_msg_find_element (msg=0x952b3c0,
    attr_name=0x8a50612 "objectClass") at lib/ldb/common/ldb_msg.c:52
52                      if (ldb_attr_cmp(msg->elements[i].name, attr_name) == 0) {
(gdb) bt full
#0  0x0847622b in ldb_msg_find_element (msg=0x952b3c0,
    attr_name=0x8a50612 "objectClass") at lib/ldb/common/ldb_msg.c:52
        i = 0
#1  0x084893a5 in map_objectclass_generate_local (module=0x94d92d8,
    mem_ctx=0x9332770, local_attr=0x8e45560 "objectClass", remote=0x952b3c0)
    at lib/ldb/ldb_map/ldb_map.c:797
        data = (const struct ldb_map_context *) 0x8ddf3c0
        ldb = (struct ldb_context *) 0x951f890
        el = (struct ldb_message_element *) 0x89962da
        oc = (struct ldb_message_element *) 0x8f38938
        val = {data = 0x8488181 "\205�u \213E\b\213\b\213E�\215\024\205",
  length = 145032722}
        i = 111
#2  0x08485732 in ldb_msg_el_merge (module=0x94d92d8, local=0x9332770,
    remote=0x952b3c0, attr_name=0x8e45560 "objectClass")
    at lib/ldb/ldb_map/ldb_map_outbound.c:331
        data = (const struct ldb_map_context *) 0x8ddf3c0
        map = (const struct ldb_map_attribute *) 0x8f38938
        old = (struct ldb_message_element *) 0x6f
        el = (struct ldb_message_element *) 0x0
        remote_name = 0x0
        ldb = (struct ldb_context *) 0x951f890
#3  0x08485a42 in ldb_msg_merge_remote (ac=0x8e45248, local=0x9332770,
---Type <return> to continue, or q <return> to quit---
    remote=0x952b3c0) at lib/ldb/ldb_map/ldb_map_outbound.c:434
        i = 0
        ret = 144270042
        attrs = (const char * const *) 0x8f77080
#4  0x08485b19 in map_reply_remote (ac=0x8e45248, ares=0x956a668)
    at lib/ldb/ldb_map/ldb_map_outbound.c:468
        msg = (struct ldb_message *) 0x9332770
        dn = (struct ldb_dn *) 0x956a4e8
        ret = 156414912
#5  0x0848756c in map_remote_search_callback (req=0x956bdd8, ares=0x956a668)
    at lib/ldb/ldb_map/ldb_map_outbound.c:1223
        ac = (struct map_context *) 0x8e45248
        ret = 156414864
#6  0x08479b96 in ldb_module_send_entry (req=0x956bdd8, msg=0x952b3c0,
    ctrls=0x0) at lib/ldb/common/ldb_modules.c:675
        ares = (struct ldb_reply *) 0x956a668
#7  0x084d9f5b in ps_callback (req=0x956bf40, ares=0x956a520)
    at lib/ldb/modules/paged_searches.c:173
        ac = (struct ps_context *) 0x8fd0e20
        ret = 156414864
#8  0x08479b96 in ldb_module_send_entry (req=0x956bf40, msg=0x952b3c0,
    ctrls=0x0) at lib/ldb/common/ldb_modules.c:675
        ares = (struct ldb_reply *) 0x956a520
---Type <return> to continue, or q <return> to quit---
#9  0x08497bcc in ildb_callback (req=0x917d608)
    at lib/ldb/ldb_ildap/ldb_ildap.c:326
        ldb = (struct ldb_context *) 0x951f890
        ac = (struct ildb_context *) 0x956bff8
        status = {v = 154696968}
        search = (struct ldap_SearchResEntry *) 0x917d960
        msg = (struct ldap_message *) 0x917d958
        controls = (struct ldb_control **) 0x0
        ldbmsg = (struct ldb_message *) 0x952b3c0
        referral = 0x899862a "\211E�\213E�\203�\024[]�U\211�S\203�\024�{Gt�\201�R�\033"
        callback_failed = false
        request_done = false
        ret = 155900120
        i = 0
#10 0x08499288 in ldap_match_message (conn=0x8f61940, msg=0x8f9d1c8)
    at libcli/ldap/ldap_client.c:177
        req = (struct ldap_request *) 0x917d608
        i = 1
        __FUNCTION__ = "ldap_match_message"
#11 0x084993c0 in ldap_recv_handler (private_data=0x8f61940, blob=
      {data = 0x8f9d018 "01\002\001\016e\a\n\001", length = 51})
    at libcli/ldap/ldap_client.c:209
---Type <return> to continue, or q <return> to quit---
        status = {v = 0}
        conn = (struct ldap_connection *) 0x8f61940
        msg = (struct ldap_message *) 0x8f9d1c8
        asn1 = (struct asn1_data *) 0x8e561a8
#12 0x086d1dd0 in packet_recv (pc=0x953fb48) at lib/stream/packet.c:414
        npending = 71
        status = {v = 0}
        nread = 51
        blob = {data = 0x8f9d018 "01\002\001\016e\a\n\001", length = 51}
        recv_retry = false
        __FUNCTION__ = "packet_recv"
#13 0x0849942e in ldap_read_io_handler (private_data=0x8f61940, flags=1)
    at libcli/ldap/ldap_client.c:221
        conn = (struct ldap_connection *) 0x8f61940
#14 0x084994b0 in ldap_io_handler (ev=0x8b77058, fde=0x9480ae0, flags=1,
    private_data=0x8f61940) at libcli/ldap/ldap_client.c:237
        conn = (struct ldap_connection *) 0x8f61940
#15 0x0899b6f4 in epoll_event_loop ()
No symbol table info available.
#16 0x0899bd55 in std_event_loop_once ()
No symbol table info available.
#17 0x089994eb in _tevent_loop_once ()
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#18 0x08470c26 in ldb_wait (handle=0x94aeae0, type=LDB_WAIT_ALL)
    at lib/ldb/common/ldb.c:506
        ev = (struct tevent_context *) 0x8b77058
        ret = 0
#19 0x0847209a in ldb_search (ldb=0x951f890, mem_ctx=0x951f890,
    result=0xbfdde708, base=0x8f73928, scope=LDB_SCOPE_SUBTREE,
    attrs=0xbfdde754, exp_fmt=0x8a72b0b "%s") at lib/ldb/common/ldb.c:1140
        req = (struct ldb_request *) 0x917dac8
        res = (struct ldb_result *) 0x8bc79f8
        expression = 0x940a2e8 "(objectclass=group)"
        ap = 0xbfdde6ec "�E�\bNTͷ\v+�\b"
        ret = 0
#20 0x085431f2 in gendb_search_v (ldb=0x951f890, mem_ctx=0x951f890,
    basedn=0x8f73928, msgs=0xbfdde758, attrs=0xbfdde754,
    format=0x8a52f4a "(objectclass=group)",
    ap=0xbfdde780 "P�\005\t\224y�\b��ݿwn\231\b\200�\005")
    at ../lib/util/util_ldb.c:53
        scope = LDB_SCOPE_SUBTREE
        res = (struct ldb_result *) 0x0
        expr = 0x8f845b8 "(objectclass=group)"
        ret = -1210478216
        __FUNCTION__ = "gendb_search_v"
#21 0x08513176 in samdb_search_count (sam_ldb=0x951f890, mem_ctx=0x951f890,
---Type <return> to continue, or q <return> to quit---
    basedn=0x8f73928, format=0x8a52f4a "(objectclass=group)")
    at dsdb/common/util.c:198
        ap = 0xbfdde780 "P�\005\t\224y�\b��ݿwn\231\b\200�\005"
        res = (struct ldb_message **) 0x8f85a00
        attrs = {0x0}
        ret = 88
#22 0x08496759 in construct_primary_group_token (module=0x94b9f50,
    msg=0x8bc32d8) at dsdb/samdb/ldb_modules/operational.c:105
        ldb = (struct ldb_context *) 0x951f890
        primary_group_token = 157199104
#23 0x08496877 in operational_search_post_process (module=0x94b9f50,
    msg=0x8bc32d8, attrs=0x8f840a0) at dsdb/samdb/ldb_modules/operational.c:169
        ldb = (struct ldb_context *) 0x951f890
        i = 4
        a = 0
#24 0x08496aa2 in operational_callback (req=0x902a9b0, ares=0x8f85a38)
    at dsdb/samdb/ldb_modules/operational.c:231
        ac = (struct operational_context *) 0x905cc80
        ret = 146551464
#25 0x08479b96 in ldb_module_send_entry (req=0x902a9b0, msg=0x8bc32d8,
    ctrls=0x0) at lib/ldb/common/ldb_modules.c:675
        ares = (struct ldb_reply *) 0x8f85a38
#26 0x084ebfb7 in extended_callback (req=0x905dc98, ares=0x9196bf8)
---Type <return> to continue, or q <return> to quit---
    at dsdb/samdb/ldb_modules/extended_dn_out.c:395
        ac = (struct extended_search_context *) 0x8bc3118
        control = (struct ldb_control *) 0x0
        dereference_control = (struct dsdb_openldap_dereference_result_control
     *) 0x0
        ret = 0
        i = 1
        j = 146110868
        msg = (struct ldb_message *) 0x8bc32d8
        p = (struct extended_dn_out_private *) 0x8bff368
#27 0x08479b96 in ldb_module_send_entry (req=0x905dc98, msg=0x8bc32d8,
    ctrls=0x0) at lib/ldb/common/ldb_modules.c:675
        ares = (struct ldb_reply *) 0x9196bf8
#28 0x0848f296 in kludge_acl_callback (req=0x8e45440, ares=0x92de2d0)
    at dsdb/samdb/ldb_modules/kludge_acl.c:294
        ldb = (struct ldb_context *) 0x951f890
        ac = (struct kludge_acl_context *) 0x8f75fb8
        data = (struct kludge_private_data *) 0x952e240
        i = 18
        ret = 146551464
#29 0x08479b96 in ldb_module_send_entry (req=0x8e45440, msg=0x8bc32d8,
    ctrls=0x0) at lib/ldb/common/ldb_modules.c:675
        ares = (struct ldb_reply *) 0x92de2d0
---Type <return> to continue, or q <return> to quit---
#30 0x084e391d in partition_req_callback (req=0x917d240, ares=0x8f76ef8)
    at dsdb/samdb/ldb_modules/partition.c:216
        ac = (struct partition_context *) 0x9453f40
        module = (struct ldb_module *) 0x0
        nreq = (struct ldb_request *) 0x8bc32d8
        ret = 154337976
#31 0x08479b96 in ldb_module_send_entry (req=0x917d240, msg=0x8bc32d8,
    ctrls=0x0) at lib/ldb/common/ldb_modules.c:675
        ares = (struct ldb_reply *) 0x8f76ef8
#32 0x0848715a in map_return_entry (ac=0x8e45248, ares=0x8ba7630)
    at lib/ldb/ldb_map/ldb_map_outbound.c:1088
        el = (struct ldb_message_element *) 0x917d2a8
        attrs = (const char * const *) 0x92de468
        ldb = (struct ldb_context *) 0x951f890
        i = 1
#33 0x084875de in map_remote_search_callback (req=0x956bdd8, ares=0x8ba7630)
    at lib/ldb/ldb_map/ldb_map_outbound.c:1234
        ac = (struct map_context *) 0x8e45248
        ret = 0
#34 0x08479b96 in ldb_module_send_entry (req=0x956bdd8, msg=0x917cfc0,
    ctrls=0x0) at lib/ldb/common/ldb_modules.c:675
        ares = (struct ldb_reply *) 0x8ba7630
#35 0x084d9f5b in ps_callback (req=0x956bf40, ares=0x8e8c728)
---Type <return> to continue, or q <return> to quit---
    at lib/ldb/modules/paged_searches.c:173
        ac = (struct ps_context *) 0x8fd0e20
        ret = 152555408
#36 0x08479b96 in ldb_module_send_entry (req=0x956bf40, msg=0x917cfc0,
    ctrls=0x0) at lib/ldb/common/ldb_modules.c:675
        ares = (struct ldb_reply *) 0x8e8c728
#37 0x08497bcc in ildb_callback (req=0x917d608)
    at lib/ldb/ldb_ildap/ldb_ildap.c:326
        ldb = (struct ldb_context *) 0x951f890
        ac = (struct ildb_context *) 0x956bff8
        status = {v = 155900072}
        search = (struct ldap_SearchResEntry *) 0x917d960
        msg = (struct ldap_message *) 0x917d958
        controls = (struct ldb_control **) 0x0
        ldbmsg = (struct ldb_message *) 0x917cfc0
        referral = 0x899862a "\211E�\213E�\203�\024[]�U\211�S\203�\024�{Gt�\201�R�\033"
        callback_failed = false
        request_done = false
        ret = 0
        i = 0
#38 0x08499288 in ldap_match_message (conn=0x8f61940, msg=0x917d958)
    at libcli/ldap/ldap_client.c:177
---Type <return> to continue, or q <return> to quit---
        req = (struct ldap_request *) 0x917d608
        i = 0
        __FUNCTION__ = "ldap_match_message"
#39 0x084993c0 in ldap_recv_handler (private_data=0x8f61940, blob=
      {data = 0x917d7b8 "0\201\200\002\001\016d{\004.cn=Administrators,cn=Builtin,dc=mesainc,dc=com0I0\037\004\tobjectSid1\022\004\020\001\002", length = 131})
    at libcli/ldap/ldap_client.c:209
        status = {v = 0}
        conn = (struct ldap_connection *) 0x8f61940
        msg = (struct ldap_message *) 0x917d958
        asn1 = (struct asn1_data *) 0x917d9c0
#40 0x086d1dd0 in packet_recv (pc=0x953fb48) at lib/stream/packet.c:414
        npending = 151
        status = {v = 0}
        nread = 131
        blob = {
  data = 0x917d7b8 "0\201\200\002\001\016d{\004.cn=Administrators,cn=Builtin,dc=mesainc,dc=com0I0\037\004\tobjectSid1\022\004\020\001\002", length = 131}
        recv_retry = false
        __FUNCTION__ = "packet_recv"
#41 0x0849942e in ldap_read_io_handler (private_data=0x8f61940, flags=1)
    at libcli/ldap/ldap_client.c:221
        conn = (struct ldap_connection *) 0x8f61940
---Type <return> to continue, or q <return> to quit---
#42 0x084994b0 in ldap_io_handler (ev=0x8b77058, fde=0x9480ae0, flags=1,
    private_data=0x8f61940) at libcli/ldap/ldap_client.c:237
        conn = (struct ldap_connection *) 0x8f61940
#43 0x0899b6f4 in epoll_event_loop ()
No symbol table info available.
#44 0x0899bd55 in std_event_loop_once ()
No symbol table info available.
#45 0x089994eb in _tevent_loop_once ()
No symbol table info available.
#46 0x08470c26 in ldb_wait (handle=0x8d9efe0, type=LDB_WAIT_ALL)
    at lib/ldb/common/ldb.c:506
        ev = (struct tevent_context *) 0x8b77058
        ret = 0
#47 0x083e6e54 in ldapsrv_SearchRequest (call=0x8e45638)
    at ldap_server/ldap_backend.c:399
        req = (struct ldap_SearchRequest *) 0x9332068
        ent = (struct ldap_SearchResEntry *) 0xb7cd544e
        done = (struct ldap_Result *) 0x50
        ent_r = (struct ldapsrv_reply *) 0xa
        done_r = (struct ldapsrv_reply *) 0xb7cd4ee4
        local_ctx = (TALLOC_CTX *) 0x8def178
        samdb = (struct ldb_context *) 0x951f890
        basedn = (struct ldb_dn *) 0x905bd88
---Type <return> to continue, or q <return> to quit---
        res = (struct ldb_result *) 0x94f21a8
        lreq = (struct ldb_request *) 0x925b198
        search_control = (struct ldb_control *) 0xb7d99140
        search_options = (struct ldb_search_options_control *) 0x8e454c0
        extended_dn_control = (struct ldb_control *) 0x0
        extended_dn_decoded = (struct ldb_extended_dn_control *) 0x0
        scope = LDB_SCOPE_BASE
        attrs = (const char **) 0x8f840a0
        scope_str = 0x8a363cc "BASE"
        errstr = 0x0
        success_limit = 0
        result = -1
        ldb_ret = 0
        i = 1
        j = 144268468
        extended_type = 1
        __FUNCTION__ = "ldapsrv_SearchRequest"
#48 0x083e9189 in ldapsrv_do_call (call=0x8e45638)
    at ldap_server/ldap_backend.c:911
        i = 0
        msg = (struct ldap_message *) 0x9332060
        __FUNCTION__ = "ldapsrv_do_call"
#49 0x083e45e9 in ldapsrv_process_message (conn=0x92d6c70, msg=0x9332060)
---Type <return> to continue, or q <return> to quit---
    at ldap_server/ldap_server.c:91
        call = (struct ldapsrv_call *) 0x8e45638
        status = {v = 146110868}
        blob = {data = 0x8d9ef60 "�6�\b", length = 153971824}
        __FUNCTION__ = "ldapsrv_process_message"
#50 0x083e497a in ldapsrv_decode (private_data=0x92d6c70, blob=
      {data = 0x0, length = 0}) at ldap_server/ldap_server.c:166
        status = {v = 0}
        conn = (struct ldapsrv_connection *) 0x92d6c70
        asn1 = (struct asn1_data *) 0x8d9ef90
        msg = (struct ldap_message *) 0x9332060
#51 0x086d1dd0 in packet_recv (pc=0x94bcd78) at lib/stream/packet.c:414
        npending = 137
        status = {v = 0}
        nread = 117
        blob = {data = 0x917d240 "", length = 117}
        recv_retry = false
        __FUNCTION__ = "packet_recv"
#52 0x083e4a73 in ldapsrv_recv (c=0x952a498, flags=1)
    at ldap_server/ldap_server.c:201
        conn = (struct ldapsrv_connection *) 0x92d6c70
#53 0x080e400c in stream_io_handler (conn=0x952a498,
    flags=<value optimized out>) at smbd/service_stream.c:94
---Type <return> to continue, or q <return> to quit---
No locals.
#54 0x0899b6f4 in epoll_event_loop ()
No symbol table info available.
#55 0x0899bd55 in std_event_loop_once ()
No symbol table info available.
#56 0x089994eb in _tevent_loop_once ()
No symbol table info available.
#57 0x0899970c in tevent_common_loop_wait ()
No symbol table info available.
#58 0x089997ca in _tevent_loop_wait ()
No symbol table info available.
#59 0x080dcbd5 in main (argc=4, argv=0x4) at smbd/server.c:375
No locals.
(gdb)
(gdb)