[Samba] Samba 4.4.5 segmentation fault on Darwin
Michael A Weber
mweber.subscriptions01 at gmail.com
Sat Jul 30 22:13:06 UTC 2016
First: Long-time samba user (since 2004), and my first reach-out to everyone, so thank you for the great work!
New issue: Both joining an AD domain and smbd fail with a segmentation fault on the Mac. I’ve tried to debug it the best I can but I’m not a C developer and can’t figure out what is the cause.
For smbd, I have the log errors and the stack trace from it which I hope will provide some clues. For net ads join, I have it on full debug (-d 10), but the only thing I get is the segmentation fault at the end. If there is a log file which may have more of a clue, I don’t know where to find it, but I’ll be happy to get any information out of it that I can.
I know… I hear the groans already. “Mac OS X????” Yep… I know. Sadly, I need to configure a Mac OS X machine as a member server to an AD domain. I know… YUCK. However, it’s something I must do.
I’m going to attempt to provide information that may help to identify the problem, but if there is anything else needed, I’ll do what I can to get it. Please just let me know.
Gratefully,
Mike
Here is the info from smbd log:
*****************************************************************************************************************************************************
[2016/07/29 16:09:59.994149, 0] ../source3/lib/util.c:1399(set_maxfiles)
set_maxfiles: setrlimit for RLIMIT_NOFILE for 16424 files failed with error Invalid argument
[2016/07/29 16:10:00.009840, 0] ../lib/util/become_daemon.c:124(daemon_ready)
STATUS=daemon 'smbd' finished starting up and ready to serve connections
[2016/07/29 16:10:00.154074, 0] ../lib/util/fault.c:78(fault_report)
===============================================================
[2016/07/29 16:10:00.155925, 0] ../lib/util/fault.c:79(fault_report)
INTERNAL ERROR: Signal 11 in pid 1698 (4.4.5)
Please read the Trouble-Shooting section of the Samba HOWTO
[2016/07/29 16:10:00.157317, 0] ../lib/util/fault.c:81(fault_report)
===============================================================
[2016/07/29 16:10:00.159240, 0] ../source3/lib/util.c:791(smb_panic_s3)
PANIC (pid 1698): internal error
[2016/07/29 16:10:00.161906, 0] ../source3/lib/util.c:902(log_stack_trace)
BACKTRACE: 21 stack frames:
#0 0 libsmbconf.dylib 0x0000000102107e0a log_stack_trace + 42
#1 1 libsmbconf.dylib 0x0000000102107be8 smb_panic_s3 + 152
#2 2 libsamba-util.dylib 0x000000010155a687 smb_panic + 39
#3 3 libsamba-util.dylib 0x000000010155ac50 string_sub_once + 0
#4 4 libsamba-util.dylib 0x000000010155a653 sig_fault + 19
#5 5 libsystem_platform.dylib 0x00007fff913a752a _sigtramp + 26
#6 6 ??? 0x0000000083442f30 0x0 + 2202283824
#7 7 libsystem_c.dylib 0x00007fff82d45f13 __memcpy_chk + 22
#8 8 libgssapi-samba4.dylib 0x0000000101ab5d06 _gss_copy_oid + 150
#9 9 libgssapi-samba4.dylib 0x0000000101ab89e3 gss_import_name + 259
#10 10 libads-samba4.dylib 0x0000000102b58677 ads_generate_service_principal + 359
#11 11 libads-samba4.dylib 0x0000000102b57bde ads_sasl_spnego_bind + 974
#12 12 libads-samba4.dylib 0x0000000102b5761a ads_sasl_bind + 650
#13 13 libads-samba4.dylib 0x0000000102b4a2f9 ads_connect + 3097
#14 14 libsmbd-base-samba4.dylib 0x000000010160f8ea check_published_printers + 442
#15 15 libsmbd-base-samba4.dylib 0x000000010160375b nt_printing_init + 107
#16 16 libsmbd-base-samba4.dylib 0x00000001015f81ac print_backend_init + 636
#17 17 libsmbd-base-samba4.dylib 0x0000000101611282 printing_subsystem_init + 50
#18 18 smbd 0x000000010152e652 main + 7570
#19 19 libdyld.dylib 0x00007fff84fed5ad start + 1
#20 20 ??? 0x0000000000000001 0x0 + 1
[2016/07/29 16:10:00.173382, 0] ../source3/lib/dumpcore.c:303(dump_core)
dumping core in /usr/local/samba/var/cores/smbd
*****************************************************************************************************************************************************
(It says at the end that it’s core dumping to that location, but there is nothing in there.)
Here is the trailing end of the net -d 10 ads join command and failure:
*****************************************************************************************************************************************************
create_local_private_krb5_conf_for_domain: wrote file /usr/local/samba/var/lock/smb_krb5/krb5.conf.WEBERAUTOMOTIVE with realm INT.WEBERAUTOMOTIVE.COM KDC list = kdc = 192.168.75.76
sitename_fetch: Returning sitename for INT.WEBERAUTOMOTIVE.COM: "Default-First-Site-Name"
internal_resolve_name: looking up addc.int.weberautomotive.com#20 (sitename Default-First-Site-Name)
name addc.int.weberautomotive.com#20 found.
remove_duplicate_addrs2: looking for duplicate address/port pairs
ads_try_connect: sending CLDAP request to 192.168.75.76 (realm: int.weberautomotive.com)
&response->data.nt5_ex: struct NETLOGON_SAM_LOGON_RESPONSE_EX
command : LOGON_SAM_LOGON_RESPONSE_EX (23)
sbz : 0x0000 (0)
server_type : 0x000013fd (5117)
1: NBT_SERVER_PDC
1: NBT_SERVER_GC
1: NBT_SERVER_LDAP
1: NBT_SERVER_DS
1: NBT_SERVER_KDC
1: NBT_SERVER_TIMESERV
1: NBT_SERVER_CLOSEST
1: NBT_SERVER_WRITABLE
1: NBT_SERVER_GOOD_TIMESERV
0: NBT_SERVER_NDNC
0: NBT_SERVER_SELECT_SECRET_DOMAIN_6
1: NBT_SERVER_FULL_SECRET_DOMAIN_6
0: NBT_SERVER_ADS_WEB_SERVICE
0: NBT_SERVER_DS_8
0: NBT_SERVER_HAS_DNS_NAME
0: NBT_SERVER_IS_DEFAULT_NC
0: NBT_SERVER_FOREST_ROOT
domain_uuid : 8f9e1b80-b8a8-47fd-898b-b9e68b3bc463
forest : 'int.weberautomotive.com'
dns_domain : 'int.weberautomotive.com'
pdc_dns_name : 'addc.int.weberautomotive.com'
domain_name : 'WEBERAUTOMOTIVE'
pdc_name : 'ADDC'
user_name : ''
server_site : 'Default-First-Site-Name'
client_site : 'Default-First-Site-Name'
sockaddr_size : 0x00 (0)
sockaddr: struct nbt_sockaddr
sockaddr_family : 0x00000000 (0)
pdc_ip : (null)
remaining : DATA_BLOB length=0
next_closest_site : NULL
nt_version : 0x00000005 (5)
1: NETLOGON_NT_VERSION_1
0: NETLOGON_NT_VERSION_5
1: NETLOGON_NT_VERSION_5EX
0: NETLOGON_NT_VERSION_5EX_WITH_IP
0: NETLOGON_NT_VERSION_WITH_CLOSEST_SITE
0: NETLOGON_NT_VERSION_AVOID_NT4EMUL
0: NETLOGON_NT_VERSION_PDC
0: NETLOGON_NT_VERSION_IP
0: NETLOGON_NT_VERSION_LOCAL
0: NETLOGON_NT_VERSION_GC
lmnt_token : 0xffff (65535)
lm20_token : 0xffff (65535)
sitename_store: realm = [WEBERAUTOMOTIVE], sitename = [Default-First-Site-Name], expire = [2085923199]
Did not store value for AD_SITENAME/DOMAIN/WEBERAUTOMOTIVE, we already got it
sitename_store: realm = [int.weberautomotive.com], sitename = [Default-First-Site-Name], expire = [2085923199]
Did not store value for AD_SITENAME/DOMAIN/INT.WEBERAUTOMOTIVE.COM, we already got it
Successfully contacted LDAP server 192.168.75.76
Opening connection to LDAP server '192.168.75.76:389', timeout 15 seconds
Initialized connection for LDAP server 'ldap://192.168.75.76:389'
Connected to LDAP server addc.int.weberautomotive.com
ads_closest_dc: NBT_SERVER_CLOSEST flag set
saf_store: domain = [WEBERAUTOMOTIVE], server = [addc.int.weberautomotive.com], expire = [1469828016]
Adding cache entry with key=[SAF/DOMAIN/WEBERAUTOMOTIVE] and timeout=[Fri Jul 29 16:33:36 2016 CDT] (900 seconds ahead)
saf_store: domain = [int.weberautomotive.com], server = [addc.int.weberautomotive.com], expire = [1469828016]
Adding cache entry with key=[SAF/DOMAIN/INT.WEBERAUTOMOTIVE.COM] and timeout=[Fri Jul 29 16:33:36 2016 CDT] (900 seconds ahead)
KDC time offset is -187 seconds
Found SASL mechanism GSS-SPNEGO
ads_sasl_spnego_bind: got OID=1.2.840.48018.1.2.2
ads_sasl_spnego_bind: got OID=1.2.840.113554.1.2.2
ads_sasl_spnego_bind: got OID=1.3.6.1.4.1.311.2.2.10
Segmentation fault: 11
*****************************************************************************************************************************************************
Build information for samba 4.4.5:
*****************************************************************************************************************************************************
Build environment:
Built by: mweber at macmini.int.weberautomotive.com
Built on: Thu Jul 28 22:30:57 CDT 2016
Built using: /usr/bin/gcc
Build host: Darwin macmini.int.weberautomotive.com 15.6.0 Darwin Kernel Version 15.6.0: Thu Jun 23 18:25:34 PDT 2016; root:xnu-3248.60.10~1/RELEASE_X86_64 x86_64
SRCDIR: /Users/mweber/Downloads/install/samba-4.4.5/source3
BUILDDIR: /Users/mweber/Downloads/install/samba-4.4.5/source3
Paths:
SBINDIR: /usr/local/samba/sbin
BINDIR: /usr/local/samba/bin
CONFIGFILE: /usr/local/samba/etc/smb.conf
LOGFILEBASE: /usr/local/samba/var
LMHOSTSFILE: /usr/local/samba/etc/lmhosts
LIBDIR: /usr/local/samba/lib
MODULESDIR: /usr/local/samba/lib
SHLIBEXT: dylib
LOCKDIR: /usr/local/samba/var/lock
STATEDIR: /usr/local/samba/var/locks
CACHEDIR: /usr/local/samba/var/cache
PIDDIR: /usr/local/samba/var/run
SMB_PASSWD_FILE: /usr/local/samba/private/smbpasswd
PRIVATE_DIR: /usr/local/samba/private
--with Options:
WITH_ADS
WITH_AUTOMOUNT
WITH_DNS_UPDATES
WITH_PAM
WITH_PAM_MODULES
WITH_PTHREADPOOL
WITH_QUOTAS
WITH_SENDFILE
WITH_SYSLOG
WITH_WINBIND
Builtin modules:
vfs_default auth_domain auth_builtin auth_sam auth_winbind pdb_smbpasswd pdb_tdbsam pdb_wbc_sam auth_unix auth_wbc nss_info_template idmap_tdb idmap_passdb idmap_nss pdb_ldapsam idmap_ldap charset_macosxfs
*****************************************************************************************************************************************************
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