[Samba] Winbind Issue?

[Mike Hurst]

Hello, we are having this issue on two of our RHEL 5.2 servers. We have them set up to authenticate to our Windows 2003 domain. Everything works well for a while, but for some reason every few days the winbind service will stop working, this is what we see in the log file:

[2009/02/25 04:02:01, 0] lib/fault.c:fault_report(41)
  ===============================================================
[2009/02/25 04:02:01, 0] lib/fault.c:fault_report(42)
  INTERNAL ERROR: Signal 11 in pid 7078 (3.0.33-3.7.el5)
  Please read the Trouble-Shooting section of the Samba3-HOWTO
[2009/02/25 04:02:01, 0] lib/fault.c:fault_report(44)

  From: http://www.samba.org/samba/docs/Samba3-HOWTO.pdf
[2009/02/25 04:02:01, 0] lib/fault.c:fault_report(45)
  ===============================================================
[2009/02/25 04:02:01, 0] lib/util.c:smb_panic(1655)
  PANIC (pid 7078): internal error
[2009/02/25 04:02:01, 0] lib/util.c:log_stack_trace(1759)
  BACKTRACE: 16 stack frames:
   #0 winbindd(log_stack_trace+0x2d) [0x34ce4d]
   #1 winbindd(smb_panic+0x5d) [0x34cf7d]
   #2 winbindd [0x337afa]
   #3 [0xb21420]
   #4 /lib/libc.so.6(cfree+0x67) [0xa0b007]
   #5 winbindd [0x342054]
   #6 winbindd(lp_do_parameter+0x511) [0x32b941]
   #7 winbindd [0x32cea5]
   #8 winbindd [0x32e468]
   #9 winbindd(pm_process+0x175) [0x32e8e5]
   #10 winbindd(lp_load+0x158) [0x32bd18]
   #11 winbindd [0x2b2c06]
   #12 winbindd(winbind_check_sighup+0xb0) [0x2b39a0]
   #13 winbindd(main+0xafd) [0x2b46fd]
   #14 /lib/libc.so.6(__libc_start_main+0xdc) [0x9b4dec]
   #15 winbindd [0x2b2641]
[2009/02/25 04:02:01, 0] lib/fault.c:dump_core(181)
  dumping core in /var/log/samba/cores/winbindd
[2009/02/25 07:33:23, 1] nsswitch/winbindd.c:main(1013)
  winbindd version 3.0.33-3.7.el5 started.
  Copyright Andrew Tridgell and the Samba Team 1992-2008
[2009/02/25 07:33:23, 0] nsswitch/winbindd_cache.c:initialize_winbindd_cache(2229)
  initialize_winbindd_cache: clearing cache and re-creating with version number 1
[2009/02/25 07:33:24, 0] libsmb/cliconnect.c:cli_session_setup_spnego(859)
  Kinit failed: KDC has no support for encryption type
[2009/02/25 08:02:51, 0] lib/util_sock.c:write_data(564)
  write_data: write failure. Error = Connection reset by peer
[2009/02/25 08:02:51, 0] libsmb/clientgen.c:write_socket(158)
  write_socket: Error writing 108 bytes to socket 18: ERRNO = Connection reset by peer
[2009/02/25 08:02:51, 0] libsmb/clientgen.c:cli_send_smb(188)
  Error writing 108 bytes to client. -1 (Connection reset by peer)
[2009/02/25 08:02:51, 1] rpc_client/cli_pipe.c:cli_rpc_pipe_open(2223)
  cli_rpc_pipe_open: cli_nt_create failed on pipe \NETLOGON to machine <domain-controller>.  Error was Write error: Connection reset by peer


We're running:
samba-common-3.0.33-3.7.el5
samba-3.0.33-3.7.el5
krb5-libs-1.6.1-31.el5
Linux 2.6.18-92.1.13.el5 #1 SMP Thu Sep 4 03:51:01 EDT 2008 i686 i686 i386 GNU/Linux

Our current workaround is to just restart the winbind service...

Any ideas?

Mike Hurst
UNIX Administrator II
Credit Acceptance Corporation
248.353.2700 ext. 5639
mhurst at creditacceptance.com<mailto:mhurst at creditacceptance.com>