Marc Patermann wrote:
Howard Chu schrieb am 15.08.2011 23:20 Uhr:
Marc Patermann wrote:
Why does slapd crash here?
This looks like the same trace as ITS#6892, but that was already patched/fixed in 2.4.26. Need a bit more info from the crash. E.g. print *ss print *ss->s_op
This output shows that a consumer making a persistent search abandoned the search while syncprov was still setting up the psearch, and a modification whose target belonged to the psearch occurred at that time.
syncprov of course sets up locks to prevent this kind of crash from happening, but apparently there's still a bug there.
(gdb) print *ss No symbol "ss" in current context. (gdb) frame 1 #1 0x00007fb87c606b09 in syncprov_matchops (op=0x7fb7cc2174f0, opc=0x7fb7d8a468e8, saveit=1) at syncprov.c:1313 1313 syncprov.c: No such file or directory. in syncprov.c (gdb) print *ss $1 = {s_next = 0x7fb6d0b37b60, s_base = {bv_len = 56, bv_val = 0x7fb6d9b62450 "ou=linux,ou=steuer,o=landesverwaltung niedersachsen,c=de"}, s_eid = 1, s_op = 0x7fb7d8838da0, s_rid = 159, s_sid = -1, s_filterstr = {bv_len = 15, bv_val = 0x7fb7e4064760 "(objectClass=*)"}, s_flags = 1, s_inuse = 1, s_res = 0x0, s_restail = 0x0, s_mutex = {__data = {__lock = 0, __count = 0, __owner = 0, __nusers = 0, __kind = 0, __spins = 0, __list = {__prev = 0x0, __next = 0x0}}, __size = '\000'<repeats 39 times>, __align = 0}} (gdb) print *ss->s_op $2 = {o_hdr = 0x7fb7d8838f10, o_tag = 0, o_time = 0, o_tincr = 1, o_bd = 0x0, o_req_dn = {bv_len = 0, bv_val = 0x0}, o_req_ndn = {bv_len = 0, bv_val = 0x0}, o_request = {oq_add = {rs_modlist = 0x0, rs_e = 0x0}, oq_bind = {rb_method = 0, rb_cred = {bv_len = 0, bv_val = 0x0}, rb_edn = { bv_len = 0, bv_val = 0x0}, rb_ssf = 0, rb_mech = {bv_len = 0, bv_val = 0x0}}, oq_compare = {rs_ava = 0x0}, oq_modify = {rs_mods = { rs_modlist = 0x0, rs_no_opattrs = 0 '\000'}, rs_increment = 0}, oq_modrdn = {rs_mods = {rs_modlist = 0x0, rs_no_opattrs = 0 '\000'}, rs_deleteoldrdn = 0, rs_newrdn = {bv_len = 0, bv_val = 0x0}, rs_nnewrdn = {bv_len = 0, bv_val = 0x0}, rs_newSup = 0x0, rs_nnewSup = 0x0}, oq_search = {rs_scope = 0, rs_deref = 0, rs_slimit = 0, rs_tlimit = 0, rs_limit = 0x0, rs_attrsonly = 0, rs_attrs = 0x0, rs_filter = 0x0, rs_filterstr = {bv_len = 0, bv_val = 0x0}}, oq_abandon = {rs_msgid = 0}, oq_cancel = {rs_msgid = 0}, oq_extended = {rs_reqoid = {bv_len = 0, bv_val = 0x0}, rs_flags = 0, rs_reqdata = 0x0}, oq_pwdexop = {rs_extended = {rs_reqoid = {bv_len = 0, bv_val = 0x0}, rs_flags = 0, rs_reqdata = 0x0}, rs_old = {bv_len = 0, bv_val = 0x0}, rs_new = {bv_len = 0, bv_val = 0x0}, rs_mods = 0x0, rs_modtail = 0x0}}, o_abandon = 0, o_cancel = 0, o_groups = 0x0, o_do_not_cache = 0 '\000', o_is_auth_check = 0 '\000', o_dont_replicate = 0 '\000', o_acl_priv = ACL_NONE, o_nocaching = 0 '\000', o_delete_glue_parent = 0 '\000', o_no_schema_check = 0 '\000', o_no_subordinate_glue = 0 '\000', o_ctrlflag = '\000'<repeats 31 times>, o_controls = 0x7fb7d8839058, o_authz = {sai_method = 0, sai_mech = {bv_len = 0, bv_val = 0x0}, sai_dn = { bv_len = 0, bv_val = 0x0}, sai_ndn = {bv_len = 0, bv_val = 0x0}, sai_ssf = 0, sai_transport_ssf = 0, sai_tls_ssf = 0, sai_sasl_ssf = 0}, o_ber = 0x0, o_res_ber = 0x0, o_callback = 0x0, o_ctrls = 0x0, o_csn = {bv_len = 0, bv_val = 0x0}, o_private = 0x0, o_extra = {slh_first = 0x0}, o_next = {stqe_next = 0x0}} (gdb)
Marc