Hi, Concerning the cpu : model name : Intel(R) Xeon(R) CPU L5640 @ 2.27GHz However, OpenLDAP is used in a virtual machine, with only one dedicated core. This is 32 bits version of OpenLDAP, on a 32 bits OS. Linux OS : Red Hat Enterprise Linux Server release 5.7 (Tikanga) kernel : 2 2.6.18-274.3.1.el5 You can get the server configuration below. Concerning the client, you can find the source code here : http://loadtesting.sourceforge.net/index.php?lang=en # ---------------------------------------------------------------------------- # Global section # ---------------------------------------------------------------------------- sizelimit 15000 allow bind_v2 password-hash {SSHA} threads 8 loglevel 256 serverID 2 include /opt/openldap/etc/openldap/inc_shemas/slapd-schemas.conf pidfile /opt/openldap/var/run/slapd.pid argsfile /opt/openldap/var/run/slapd.args # ACLs definition (cutted here) ####################################################################### # SSL definitions ####################################################################### # Definition of cert files # --------------------------------- TLSCipherSuite HIGH:MEDIUM:+SSLv2 TLSCACertificateFile /usr/local/openldap/etc/certs/ca.cert TLSCertificateFile /usr/local/openldap/etc/certs/ldap-master-2.cert TLSCertificateKeyFile /usr/local/openldap/etc/certs/ldap-master-2.key TLSVerifyClient never ####################################################################### # BDB database definitions ####################################################################### database monitor ####################################################################### # suffix dc=example,dc=com # -------------------- ####################################################################### database bdb directory /opt/openldap/var/openldap-data # some indexes # ---------------------------------------------------------------------------- # root suffix # ---------------------------------------------------------------------------- suffix "dc=example,dc=com" checkpoint 512 10 # ---------------------------------------------------------------------------- # cache settings # ---------------------------------------------------------------------------- cachesize 60000 dncachesize 60000 idlcachesize 60000 cachefree 100 rootdn "cn=Manager,dc=example,dc=com" rootpw secret # Password policy : hash the clear passwords overlay ppolicy ppolicy_hash_cleartext # ---------------------------------------------------------------------------- # REPLICATION definitions # ---------------------------------------------------------------------------- ####################################################################### # I am a master (provider) # ------------------------------------------ overlay syncprov syncprov-checkpoint 100 10 syncprov-sessionlog 100 # syncrepl directive (consummer infos) # ------------------------------------------ syncrepl rid=001 provider=ldap://ldap-master-1.example.com bindmethod=simple binddn="uid=ReplicationMaster,ou=Replication,ou=Special Users,dc=example,dc=com" credentials=secret searchbase="dc=example,dc=com" schemachecking=on type=refreshAndPersist retry="60 +" mirrormode on # ---------------------------------------------------------------------------- # limits # ---------------------------------------------------------------------------- limits dn.exact="uid=ReplicationMaster,ou=Replication,ou=Special Users,dc=example,dc=com" size=unlimited time=unlimited limits dn.exact="uid=ReplicationHub,ou=Replication,ou=Special Users,dc=example,dc=com" size=unlimited time=unlimited limits dn.exact="uid=ReplicationLSC,ou=Replication,ou=Special Users,dc=example,dc=com" size=unlimited time=unlimited ####################################################################### # suffix o=edition # ---------------- ####################################################################### database bdb directory /opt/openldap/var/openldap-data-edition # some indexes # ---------------------------------------------------------------------------- # root suffix # ---------------------------------------------------------------------------- suffix "o=edition" checkpoint 512 10 # ---------------------------------------------------------------------------- # cache settings # ---------------------------------------------------------------------------- cachesize 50000 dncachesize 50000 idlcachesize 50000 cachefree 100 # ---------------------------------------------------------------------------- # rootdn # ---------------------------------------------------------------------------- # Cleartext passwords, especially for the rootdn, should # be avoid. See slappasswd(8) and slapd.conf(5) for details. # Use of strong authentication encouraged. rootdn "cn=Manager,o=edition" rootpw secret # Password policy : hash the clear passwords overlay ppolicy ppolicy_hash_cleartext ####################################################################### # REPLICATION definitions ####################################################################### # I am a master (provider) # ------------------------------------------ overlay syncprov syncprov-checkpoint 100 10 syncprov-sessionlog 100 # syncrepl directive (consummer infos) # ------------------------------------------ syncrepl rid=002 provider=ldap://vspar-ldap-master-1.example.com bindmethod=simple binddn="uid=ReplicationMaster,ou=Replication,ou=Special Users,dc=example,dc=com" credentials=secret searchbase="o=edition" schemachecking=on type=refreshAndPersist retry="60 +" mirrormode on # ---------------------------------------------------------------------------- # Limits for current BDB # ---------------------------------------------------------------------------- limits dn.exact="uid=ReplicationMaster,ou=Replication,ou=Special Users,dc=example,dc=com" size=unlimited time=unlimited limits dn.exact="uid=ReplicationHub,ou=Replication,ou=Special Users,dc=example,dc=com" size=unlimited time=unlimited limits dn.exact="uid=ReplicationLSC,ou=Replication,ou=Special Users,dc=example,dc=com" size=unlimited time=unlimited Le 17/02/2012 19:00, Howard Chu a écrit : > dcoutadeur(a)linagora.com wrote: >> Full_Name: dcoutadeur >> Version: 2.4.28 >> OS: Red Hat Enterprise Linux Server release 5.7 (Tikanga) >> URL: ftp://ftp.openldap.org/incoming/ >> Submission from: (NULL) (109.197.176.10) >> >> >> >> Hello, >> >> >> I had a segfault in the last git version of OpenLDAP, after 10 to 15 >> tests, each >> interrupted by Ctrl+C. (see what's a test below) >> The segfault is also reproduced in version 2.4.28. >> >> I think I won't be able to reproduce the bug with Valgrind. > > If you expect us to try to reproduce the bug, you'll have to provide > more information. Since this crash is in syncprov there's obviously at > least two servers involved; what are their configurations? What hardware > are they running on (in particular, how many CPU cores per server)? > Since you're using a custom client, can you provide the client source code? >> >> Thank you in advance for any help. >> >> D. >> >> >> Note : A test is 100 times 100 threads, each doing a bind, an add, a >> modify, a >> delete, and a logout. >> >> >> >> >> >> (gdb) bt full >> #0 sp_avl_cmp (c1=0x8b4004c8, c2=0xa37cf28) at syncprov.c:366 >> rc =<value optimized out> >> #1 0x081afe3e in avl_delete (root=0xa255648, data=0x8b4004c8, >> fcmp=0x81948a0<sp_avl_cmp>) at avl.c:197 >> p =<value optimized out> >> q =<value optimized out> >> r =<value optimized out> >> top =<value optimized out> >> side =<value optimized out> >> side_bf =<value optimized out> >> shorter =<value optimized out> >> nside =<value optimized out> >> pptr = {0x89908, 0x0, 0x0, 0x0, 0xe8043c, 0x0, 0xfdc, >> 0x8d994858, 0xe7b95c, 0xfdc, 0xa372570, 0x0, 0xa288350, >> 0xe8043c, 0xa372570, 0x8d994878, 0xe7c324, 0xfdc, 0xa372570, >> 0x0, 0xe7af2c, 0x8cb9136e, 0x81b3634, 0x0, 0xe8043c, >> 0xe, 0xa3d3a40, 0x8d9948b8, 0xe7d081, 0xa3e3618, 0x8cb91358, >> 0x823c27} >> pdir = >> "\000\000\000\000lI\231\215\064\066\033\bn>\000\000\244\345t\000\310\004@\213\b\346\067\n\310H\231\215" >> >> depth = 0 >> #2 0x08199f7f in syncprov_op_cleanup (op=0xa37e608, rs=0x8d995108) at >> syncprov.c:1401 >> cb = 0x8cb91258 >> opc = 0x8cb91268 >> si = 0xa255610 >> sm = 0xa255688 >> snext =<value optimized out> >> mt = 0x8b4004c8 >> #3 0x08089654 in slap_cleanup_play (op=0xa37e608, rs=0x8d995108) at >> result.c:541 >> sc_next = 0x8d994dec >> sc = 0x8cb91258 >> scp = 0x8d994928 >> #4 0x0808a150 in send_ldap_response (op=0xa37e608, rs=0x8d995108) at >> result.c:733 >> berbuf = { >> buffer = "\000\000\001\000\000\001\000\000\377\377\377\377", >> '\000'<repeats 12 times>, >> "f\023\271\214\064#\271\214\000\000\000\000f\023\271\214p%7\n\000\000\000\000\314I\231\215\001\000\000\000\000\000\000\000\314mK\236x\271\347\000\001\000\000\000`+@\213D`K\236\230\063\066\n\250<6\n\000\000\000\000\000\000\000\000\005\000\000\000P7@\213`\343\070\n\000\000\000\000\n\000\000\000(\234\200\330\000\000\000\000\000\000\000\000@4\"\000\000\000\000\000(\234\200\330\210J\231\215\270\214 >> >> \000\230\063\066\n`+@\213\314mK\236\r\000\000\000\001\000\000\000\021\217;O(\234\200\330\000\000\000\000`&%\n`&%\n8J\231\215b\f\"\000\224mK\236\230\063\066\n(\234\200&#1571;\347\022\b\a", >> >> '\000'<repeats 31 times>, "D'%\n\224mK\236\000\000\000", >> ialign = 65536, lalign = 65536, falign = 9.18354962e-41, >> dalign = 5.4323095486619588e-312, >> palign = 0x10000<Address 0x10000 out of bounds>} >> ber =<value optimized out> >> rc = 32768 >> bytes = 14 >> __PRETTY_FUNCTION__ = "send_ldap_response" >> #5 0x0808af1f in slap_send_ldap_result (op=0xa37e608, rs=0x8d995108) at >> result.c:860 >> tmp = 0x0 >> otext = 0x0 >> oref = 0x0 >> __PRETTY_FUNCTION__ = "slap_send_ldap_result" >> #6 0x0812bde5 in bdb_add (op=0xa37e608, rs=0x8d995108) at add.c:511 >> pdn = {bv_len = 23, bv_val = 0x8b40372f >> "ou=people,dc=afp,dc=com"} >> p = 0x8fc4c0fc >> oe = 0x8fc4c804 >> ei = 0xa37d1c8 >> textbuf = "\000\000\000\000\320O\"\n", '\000'<repeats 48 >> times>, "\001", '\000'<repeats 198 times> >> children = 0xa223b20 >> entry = 0xa223980 >> ltid = 0x0 >> lt2 = 0x8b402bf0 >> eid = 57976 >> opinfo = {boi_oe = {oe_next = {sle_next = 0x8d99509c}, oe_key = >> 0x0}, boi_txn = 0x8b402b60, boi_locks = 0x0, >> boi_err = 0, boi_acl_cache = 0 '\000', boi_flag = 0 '\000'} >> lock = {off = 133260, ndx = 772, gen = 2004, mode = >> DB_LOCK_READ} >> num_retries = 0 >> success = 0 >> postread_ctrl = 0x0 >> ctrls = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0} >> num_ctrls = 0 >> #7 0x080e33a1 in overlay_op_walk (op=0xa37e608, rs=0x8d995108, >> which=op_add, oi=0xa254ff0, on=0xa255508) at backover.c:671 >> rc = 32768 >> #8 0x080e3a0a in over_op_func (op=0xa37e608, rs=0x8d995108, >> which=op_add) at backover.c:723 >> oi = 0xa254ff0 >> on = 0xa255508 >> be = 0xa252560 >> db = {bd_info = 0x821d41c, bd_self = 0xa252560, >> be_ctrls = >> "\000\001\001\001\000\001\000\000\001\000\000\001\001\000\001\001\000\000\000\000\001\000\001\000\000\000\000\000\000\000\000\000\001", >> >> be_flags = 563464, be_restrictops = 0, be_requires = 0, be_ssf_set = >> {sss_ssf = 0, >> sss_transport = 0, sss_tls = 0, sss_sasl = 0, sss_update_ssf >> = 0, sss_update_transport = 0, sss_update_tls = 0, >> sss_update_sasl = 0, sss_simple_bind = 0}, be_suffix = >> 0xa288350, be_nsuffix = 0xa288368, be_schemadn = { >> bv_len = 0, bv_val = 0x0}, be_schemandn = {bv_len = 0, >> bv_val = 0x0}, be_rootdn = {bv_len = 24, >> bv_val = 0xa287648 "cn=Manager,dc=afp,dc=com"}, be_rootndn = >> {bv_len = 24, >> bv_val = 0xa2876d0 "cn=manager,dc=afp,dc=com"}, be_rootpw = >> {bv_len = 38, >> bv_val = 0xa2876f0 >> "{SSHA}rEmMhg3MU5xkQX5Ng92tH4WzGMlA+nGU"}, be_max_deref_depth = 15, >> be_def_limit = { >> lms_t_soft = 3600, lms_t_hard = 0, lms_s_soft = 15000, >> lms_s_hard = 0, lms_s_unchecked = -1, lms_s_pr = 0, >> lms_s_pr_hide = 0, lms_s_pr_total = 0}, be_limits = >> 0xa255748, be_acl = 0x0, be_dfltaccess = ACL_READ, >> be_extra_anlist = 0x0, be_update_ndn = {bv_len = 0, bv_val = >> 0x0}, be_update_refs = 0x0, >> be_pending_csn_list = 0xa363388, be_pcl_mutex = {__data = >> {__lock = 0, __count = 0, __owner = 0, __kind = 0, >> __nusers = 0, {__spins = 0, __list = {__next = 0x0}}}, >> __size = '\000'<repeats 23 times>, __align = 0}, >> be_syncinfo = 0xa28aec8, be_pb = 0x0, be_cf_ocs = 0x821f840, >> be_private = 0xa252660, be_next = { >> stqe_next = 0xa288538}} >> cb = {sc_next = 0x0, sc_response = 0x80e30e0 >> <over_back_response>, sc_cleanup = 0, sc_private = 0xa254ff0} >> sc =<value optimized out> >> rc =<value optimized out> >> __PRETTY_FUNCTION__ = "over_op_func" >> #9 0x08081129 in fe_op_add (op=0xa37e608, rs=0x8d995108) at add.c:334 >> repl_user = 0 >> rc =<value optimized out> >> bd = 0x82234c0 >> textbuf = >> "\000\000\000\000\000\000\000\000\060[\231\215\000\000\000\000\035\000\000\000\020\070@\213\001\000\000\000xN\231\215\270\026@\213(I\"\n\002\000\000\000\250N\231\215\255\214\v\b\270\026@\213\224N\231\215\001\000\000\000\000\000\000\000x9@\213\000\000\000\000\n\000\000\000\001\000\000\000\340\067@\213\n\000\000\000\060\070@\213\320\026@\213(I\"\n\270\026@\213\370N\231\215oc\t\b\002\000\000\000X( >> >> \n\370N\231\215\321_\t\bh\234!\n\240\066@\213'<\202\000\000\000\000\000\f\000\000\000W.@\213n>\000\000\244\345t\000\320O\"\n\320O\"\n\370N\231\215\035\205q\000 >> >> .\"\b\314h\032\216\030O\231\215\245\063\b\b >> .\"\b\240\066@\213\000\000\000\000\270\026@\213\244i\032\216\000\000\000\000HO\231\215\267\r\b\b\320O\"\n\320O\"\n\001\000\000\000HO\231\215\020\000\000\000\340h\032\216\377\377\377\377" >> >> __PRETTY_FUNCTION__ = "fe_op_add" >> #10 0x08081a13 in do_add (op=0xa37e608, rs=0x8d995108) at add.c:194 >> ber =<value optimized out> >> last = 0x8b402e71 "" >> dn = {bv_len = 38, bv_val = 0x8b402d98 >> "uid=dcoutadeur,ou=People,dc=afp,dc=com"} >> len = 28 >> tag =<value optimized out> >> modlist = 0x8b4015f0 >> modtail = 0x8b403694 >> tmp = {sml_mod = {sm_desc = 0x80ce5ca, sm_values = 0x8b4036a0, >> sm_nvalues = 0x0, sm_numvals = 2375635128, >> sm_op = 0, sm_flags = 0, sm_type = {bv_len = 12, bv_val = >> 0x8b402e57 "userPassword"}}, sml_next = 0x823c27} >> textbuf = >> "\025\000\000\000\310\031@\213\b\026@\213\006\340(\000\220[\231\215\000\000\000\000\000\000\000\000\020\000@\213\025\000\000\000\310\031@\213\310+@\213\005\070/\000\200O@\213T\245(\000\000\000\000\000\020\000@\213\364\237\067\000\220[\231\215\000\000\000\000\233\071@\213@:=\n\370O\231\215T\213\202\000b\213\202\000;\334\347\000\"\000\000\000\233\071@\213\b\000\000\000\201\354(\000\fP\231\215<\004\350\000\270P\231\215\312\315\347\000\370\326\070\n\233\071@\213\b\000\000\000\001\200\255\373\b\347\067\n@\000\000\000\243P\231\215@\000@\213\026\347\067\n@\000@\213\b\347\067\n@\261\067\000,\000\000\000\020\000@\213", >> >> '\000'<repeats 20 times>, >> "5\000\000\000@\000@\213\000\000\000\000\340\021@\213\000\000\000\000\000\000\000\000\260+@\213\000\000\000\000\001\000\000\000\004\000\020\000\350Q\231\215\310P\231\215" >> >> rc =<value optimized out> >> freevals =<value optimized out> >> oex = {oe = {oe_next = {sle_next = 0x0}, oe_key = 0x8081330}, >> oe_db = 0x0} >> #11 0x0807988c in connection_operation (ctx=0x8d9951e8, arg_v=0xa37e608) >> at connection.c:1150 >> rc =<value optimized out> >> cancel =<value optimized out> >> rs = {sr_type = REP_RESULT, sr_tag = 105, sr_msgid = 2, sr_err = >> 0, sr_matched = 0x0, sr_text = 0x0, sr_ref = 0x0, >> sr_ctrls = 0x0, sr_un = {sru_search = {r_entry = 0x0, >> r_attr_flags = 0, r_operational_attrs = 0x0, r_attrs = 0x0, >> r_nentries = 0, r_v2ref = 0x0}, sru_sasl = {r_sasldata = >> 0x0}, sru_extended = {r_rspoid = 0x0, >> r_rspdata = 0x0}}, sr_flags = 0} >> tag = 104 >> opidx = SLAP_OP_ADD >> conn = 0xb7f3bc10 >> memctx = 0xa372570 >> memctx_null = 0x0 >> __PRETTY_FUNCTION__ = "connection_operation" >> #12 0x0807a0fd in connection_read_thread (ctx=0x8d9951e8, argv=0x22) at >> connection.c:1286 >> s =<value optimized out> >> #13 0x00717a24 in ldap_int_thread_pool_wrapper (xpool=0xa2265c8) at >> tpool.c:688 >> task = 0xa382e10 >> work_list =<value optimized out> >> ctx = {ltu_id = 2375637904, ltu_key = {{ltk_key = 0x80ce400, >> ltk_data = 0xa372570, >> ltk_free = 0x80ce430<slap_sl_mem_destroy>}, {ltk_key = >> 0xa363398, ltk_data = 0xa371a88, >> ltk_free = 0x812e4c0<bdb_reader_free>}, {ltk_key = >> 0x8078320, ltk_data = 0xa37de68, >> ltk_free = 0x80783f0<conn_counter_destroy>}, {ltk_key = >> 0x808dde0, ltk_data = 0x0, >> ltk_free = 0x808dbf0<slap_op_q_destroy>}, {ltk_key = 0x0, >> ltk_data = 0x0, ltk_free = 0}<repeats 28 times>}} >> kctx =<value optimized out> >> keyslot = 241 >> hash = 5278961 >> __PRETTY_FUNCTION__ = "ldap_int_thread_pool_wrapper" >> #14 0x00821832 in start_thread () from /lib/libpthread.so.0 >> No symbol table info available. >> #15 0x002f746e in clone () from /lib/libc.so.6 >> No symbol table info available. >> >> >> >> >> > >