(gdb) bt full
#0  0xfef1eda0 in _libc_kill () from /usr/lib/libc.so.1
No symbol table info available.
#1  0xfeeb5c68 in abort () from /usr/lib/libc.so.1
No symbol table info available.
#2  0xfeeb5f08 in _assert () from /usr/lib/libc.so.1
No symbol table info available.
#3  0xfef76f90 in ldap_get_values (ld=0x210258, entry=0x0, target=0x161d58 "userPrincipalName") at getvalues.c:63
        ber = {ber_opts = {lbo_valid = 0, lbo_options = 48, lbo_debug = -17270468, lbo_meminuse = -4199428}, ber_tag = 4277696824, ber_len = 2169296, ber_usertag = 4290767992, ber_buf = 0xffbfeb78 "", ber_ptr = 0x0, ber_end = 0x0, ber_sos = 0x210210, ber_rwptr = 0x31 <Address 0x31 out of bounds>}
        attr = 0xff0ea304 ""
        found = 0
        vals = (char **) 0x0
#4  0x00118ea8 in ads_pull_string (ads=0x1e38e0, mem_ctx=0x210258, msg=0x0, field=0x161d58 "userPrincipalName") at libads/ldap.c:1519
        values = (char **) 0x0
        ret = 0x1e04a0 ""
        ux_string = 0xffbfebf8 ""
        rc = 2163288
#5  0x00119318 in ads_pull_username (ads=0x1e38e0, mem_ctx=0x1e04a0, msg=0x0) at libads/ldap.c:1745
        ret = 0xffbfec88 ""
        p = 0x1e38e0 ""
#6  0x00046bd8 in dn_lookup (ads=0x1e38e0, mem_ctx=0x1e04a0, dn=0x213218 "CN=Wquinn  (SNB),CN=Users,DC=snb,DC=ca", name=0xffbfed14, name_type=0xffbfed10, sid=0xffbfed20) at nsswitch/winbindd_ads.c:385
        ldap_exp = 0x0
        res = (void *) 0x0
        attrs = {0x12cd78 "userPrincipalName", 0x12cd68 "sAMAccountName", 0x12cd98 "objectSid", 0x12cdb8 "sAMAccountType", 0x0}
        rc = {error_type = ADS_ERROR_LDAP, err = {rc = 0, nt_status = {v = 0}}, minor_status = 0}
        atype = 2167256
        escaped_dn = 0x211260 ""
#7  0x00048028 in lookup_groupmem (domain=0x0, mem_ctx=0x1e04a0, group_sid=0xffbff530, num_names=0xffbff098, sid_mem=0xffbff094, names=0xffbff090, name_types=0xffbff09c) at nsswitch/winbindd_ads.c:748
        name_type = 0
        name = 0x210120 ""
        sid = {sid_rev_num = 0 '\0', num_auths = 30 '\036', id_auth = ":\030\0\0\0", sub_auths = {1, 4290768360, 50, 4290768703, 4290768248, 613708, 1968400, 65280, 4290768304, 248596, 959854903, 926166321, 808728888, 875902509, 2162976}}
        rc = {error_type = ADS_ERROR_LDAP, err = {rc = 0, nt_status = {v = 0}}, minor_status = 0}
        count = 0
        res = (void *) 0x1df070
        ads = (ADS_STRUCT *) 0x1e38e0
        ldap_exp = 0x2122b0 ""
        status = {v = 0}
        sidstr = 0x38 <Address 0x38 out of bounds>
        attrs = {0x12d3c0 "member", 0x0}
        members = (char **) 0x2102e8
        i = 0
        num_members = 14
        sid_string = "\0\036:\030ÿ¿ï?\0\0\0\004\0\023®P\0\0\0Ø", '\0' <repeats 12 times>, "ÿ¿î\210ÿ¿îx\0!\001 \0\0\0.\0\036\t\020\0\0ÿ\0ÿ¿î\020\0\003Å`ÿ¿î(\0\023¬\0\0\023¬", '\0' <repeats 14 times>, "\035î°\0\022¬Ð\0!\001 \0\0\0.\0\0\0ÿ\0\035êxÿ¿îH\0\003Ë \0\0\0.\0\0\0\032¨¢\220Z\0\0Nü\0\0\0\0ÿ¿î4\0\0\0\0þù\216Üÿ¿õL\0\0\0\005ÿ¿î\200\0\023¬\0\0\023¬\0\0\035î°\0\0\0\0\0\0\0\0\0\036\t\020\0\0366\030\0\022³èÿ¿ï\030\0\0\0\001\0\036"...
#8  0x0003e614 in lookup_groupmem (domain=0x1e3618, mem_ctx=0x1e04a0, group_sid=0xffbff530, num_names=0xffbff098, sid_mem=0xffbff094, names=0xffbff090, name_types=0xffbff09c) at nsswitch/winbindd_cache.c:1236
        cache = (struct winbind_cache *) 0x47da0
        centry = (struct cache_entry *) 0x0
        status = {v = 1967264}
        i = 4290769320
        sid_string = "S-1-5-21-1416833156-1238969774-10498456-512\0\0\021ëLÿ¿ï°ÿ¿ñ(ÿ¿ð \0\023¬\0\0\023¬", '\0' <repeats 14 times>, "\035î°\0\0\0\0ÿ¿õ0\0!\030È\0\0\0\002\0\004iÌÿ¿ðÀ\0\003Ý\214\0\0\0\0\0\0\0\003\0\0\0\0ÿ¿ï°\0\035ë\030\0\0\0\023ÿ¿ð¬\0\036\004 \0!\"P\0\0\0\0DOMAIN ADMINS\033156-1238969774-10498456-512\0ÿ¿ð \0\0\0ÿ"...
#9  0x000366f8 in fill_grent_mem (domain=0x1e3618, group_sid=0xffbff530, group_name_type=SID_NAME_DOM_GRP, num_gr_mem=0x1e47dc, gr_mem=0xffbff320, gr_mem_len=0xffbff31c) at nsswitch/winbindd_group.c:117
        sid_mem = (DOM_SID **) 0x2111d8
        num_names = 0
        name_types = (unsigned int *) 0x210f48
        buf_len = 0
        buf_ndx = 0
        i = 2
        names = (char **) 0x211220
        buf = 0x129400 "_list_users"
        result = 0
        mem_ctx = (TALLOC_CTX *) 0x1e04a0
        status = {v = 1217536}
        sid_string = "SNB:Domain Admins\0ò¤\0\030¸\0\0\030¸", '\0' <repeats 13 times>, "ÿ¿ò¤ÿ¿õ0\0\030¸", '\0' <repeats 21 times>, "ÿ¿õ0\0\0'\021\0\0\0\002ÿ¿ò¤\0\0\0\001\0\035êxÿ¿ò@\0\003\235àþõ\r´ÿ?\206Ì\0\0\0\001\0\0\0\212\0\027éh\0\0\0\024\0\0'\021\0\0\0\0ÿ¿ò\210ÿ<+à\0\0\0\0\0\0\0\004ÿ¿õ0\0\0366\030\0\036\004 ", '\0' <repeats 24 times>, "ÿ¿ô0ÿ¿ó0ÿ¿ó$\0\0\0\0\0\0\0\0ÿ¿ò¸\0\003tÈÿ¿ò¤\0\0\0\0\0\0'\021"...
#10 0x00037654 in winbindd_getgrgid (state=0x1e4088) at nsswitch/winbindd_group.c:392
        domain = (struct winbindd_domain *) 0x1e3618
        grp = (WINBINDD_GR *) 0xffbff530
        group_sid = {sid_rev_num = 1 '\001', num_auths = 5 '\005', id_auth = "\0\0\0\0\0\005", sub_auths = {21, 1416833156, 1238969774, 10498456, 512, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}
        name_type = SID_NAME_DOM_GRP
        dom_name = "SNB", '\0' <repeats 13 times>, "?9\036Ü\f//¸?9'ø\b<úp?9'ø\b<úp\0\0 ", '\0' <repeats 12 times>, "\002ufs", '\0' <repeats 15 times>, "u0ÿ¿÷Tÿ¿öÔþóò¬ÿ¿ôØ\0\0\0\004\0\0\0\021þóÀ\0\0\0u0þóò¨\0\0\0\0ÿ¿öÐÿ¿÷P\0\0\0\0ÿ¿õp\0\bÂ\230ÿ¿õp\0\bÂ\230\0\0\0\0\0\0\0\0\0\022¢ \0\022¾0\0\022ÁH\0\0\0ó\0\0\0\v\0@\0\0\0\0\0\f\0@\0\0\0\0\0\r\0@\0\0\0\0\0\020\0@\0@\0\0\0\017\0@\0@\0\0"...
        group_name = "Domain Admins\0\0\001\0\0\0s\0\0\0/\0\030Ê\224\0\0\0\0\0\030axÿ¿ô\0\0\0\0\0~þþÿ\0\0\0s\0\0\0/ÿ¿ó \0\b-p\0\0\0N\0\030ß0\0\0\0\0\0\0\0\0ÿ¿ó¸\0\a¬P\003 ", '\0' <repeats 20 times>, "°Ù\0\0\0\031\0\030È\0\0\0\0\0\0\0\0\001", '\0' <repeats 17 times>, "\030axÿ¿ô\0\0\023·\020\0\030ßX\0\0\003ÿ\0\0\0\0ÿ¿ô¨\0\bbX\0\0\0\0\0\0\0\024\0\0\0\0\0\0\0\0fifofs\0\0\003 \0\0\0\0\0\0\002 \0\004", '\0' <repeats 17 times>...
        gr_mem_len = 0
        gr_mem = 0xffbff328 ""
#11 0x000336c4 in process_request (state=0x1e4088) at nsswitch/winbindd.c:320
        table = (struct dispatch_table *) 0x17763c
#12 0x000339cc in winbind_process_packet (state=0x520) at nsswitch/winbindd.c:444
No locals.
#13 0x000342e0 in process_loop () at nsswitch/winbindd.c:741
        state = (struct winbindd_cli_state *) 0x1e4088
        r_fds = {fds_bits = {65536, 0 <repeats 31 times>}}
        w_fds = {fds_bits = {0 <repeats 32 times>}}
        maxfd = 1554432
        listen_sock = 11
        listen_priv_sock = 12
        selret = 1312
        timeout = {tv_sec = 30, tv_usec = 0}
        r_fds = {fds_bits = {65536, 0 <repeats 31 times>}}
        w_fds = {fds_bits = {0 <repeats 32 times>}}
        timeout = {tv_sec = 30, tv_usec = 0}
#14 0x0003492c in main (argc=0, argv=0xffbff750) at nsswitch/winbindd.c:943
        logfile = "/usr/local/samba/var/log.winbindd\0\211\204ÿ1ú", '\0' <repeats 17 times>, "ÿ¿ù\200ÿ1ù$", '\0' <repeats 32 times>, "ÿ3@", '\0' <repeats 29 times>, "ÿ3ZÌ", '\0' <repeats 20 times>, "ÿ¿ùàÿ2\001¬", '\0' <repeats 19 times>, "\002\0\200\0\0\177ÿÿÿ", '\0' <repeats 44 times>, "ÿ?\201ä\0\002í\0ÿ<Ê\020ÿ?\206Ìÿ¿ú@ÿ<Ê\030ÿ;\002\034ÿ;\002\034ÿ>@\nÿ;\002\034ÿ;\002\034\0\0\0\0ÿ<b\214ÿ?\200Èþú÷\0\0\0\0\030þõ\t\224ÿ"...
        interactive = 0
        Fork = 1
        log_stdout = 0
        long_options = {{longName = 0x0, shortName = 0 '\0', argInfo = 4, arg = 0x18c668, val = 0, descrip = 0x128c78 "Help options:", argDescrip = 0x0}, {longName = 0x128c88 "stdout", shortName = 83 'S', argInfo = 7, arg = 0x1777e8, val = 1, descrip = 0x128c90 "Log to stdout", argDescrip = 0x0}, {longName = 0x128ca0 "foreground", shortName = 70 'F', argInfo = 7, arg = 0x1777e4, val = 0, descrip = 0x128cb0 "Daemon in foreground mode", argDescrip = 0x0}, {longName = 0x128cd0 "interactive", shortName = 105 'i', argInfo = 0, arg = 0x0, val = 105, descrip = 0x128ce0 "Interactive mode", argDescrip = 0x0}, {longName = 0x128cf8 "single-daemon", shortName = 89 'Y', argInfo = 7, arg = 0x1775e4, val = 0, descrip = 0x128d08 "Single daemon mode", argDescrip = 0x0}, {longName = 0x128d20 "no-caching", shortName = 110 'n', argInfo = 7, arg = 0x1775e0, val = 0, descrip = 0x128d30 "Disable caching", argDescrip = 0x0}, {longName = 0x0, shortName = 0 '\0', argInfo = 4, arg = 0x17d4c8, val = 0, descrip = 0x128d40 "Common samba options:", argDescrip = 0x0}, {longName = 0x0, shortName = 0 '\0', argInfo = 0, arg = 0x0, val = 0, descrip = 0x0, argDescrip = 0x0}}
        pc = 0x1de850
        opt = 11