[Samba] Winbind dies

[Dimitri Yioulos]

Serious apologies if this has been discussed before, but my search 
didn't turn up much:

I have samba (kept up-to-date with latest) running on several CentOS 3 
and 4 boxes as part of a Win2k3 domain.  On one particular box, 
winbind dies on a regular basis (all the other installations run 
flawlessly).  A quick restart, and we're good again.  However, as 
this is a very active server that is accessed 18 hours a day, 7 days 
a week, I'm called at home during those few hours I spend there to 
restart winbind on this particular machine.

Here's the relevant syslog output (sorry for the length):

Jul 12 18:26:06 norwell winbindd[23775]: [2006/07/12 18:26:06, 0] 
lib/fault.c:fault_report(41)
Jul 12 18:26:06 norwell winbindd[23775]:   
===============================================================
Jul 12 18:26:06 norwell winbindd[23775]: [2006/07/12 18:26:06, 0] 
lib/fault.c:fault_report(42)
Jul 12 18:26:06 norwell winbindd[23775]:   INTERNAL ERROR: Signal 6 in 
pid 23775 (3.0.23)
Jul 12 18:26:06 norwell winbindd[23775]:   Please read the 
Trouble-Shooting section of the Samba3-HOWTO
Jul 12 18:26:06 norwell winbindd[23775]: [2006/07/12 18:26:06, 0] 
lib/fault.c:fault_report(44)
Jul 12 18:26:06 norwell winbindd[23775]:
Jul 12 18:26:06 norwell winbindd[23775]:   From: 
http://www.samba.org/samba/docs/Samba3-HOWTO.pdf
Jul 12 18:26:06 norwell winbindd[23775]: [2006/07/12 18:26:06, 0] 
lib/fault.c:fault_report(45)
Jul 12 18:26:06 norwell winbindd[23775]:   
===============================================================
Jul 12 18:26:06 norwell winbindd[23775]: [2006/07/12 18:26:06, 0] 
lib/util.c:smb_panic(1592)
Jul 12 18:26:06 norwell winbindd[23775]:   PANIC (pid 23775): internal 
error
Jul 12 18:26:06 norwell winbindd[23775]: [2006/07/12 18:26:06, 0] 
lib/util.c:log_stack_trace(1699)
Jul 12 18:26:06 norwell winbindd[23775]:   BACKTRACE: 28 stack frames:
Jul 12 18:26:06 norwell winbindd[23775]:    #0 
winbindd(log_stack_trace+0x2d) [0x5f5add]
Jul 12 18:26:06 norwell winbindd[23775]:    #1 
winbindd(smb_panic+0x75) [0x5f5985]
Jul 12 18:26:06 norwell winbindd[23775]:    #2 winbindd [0x5e10d6]
Jul 12 18:26:06 norwell winbindd[23775]:    #3 /lib/tls/libc.so.6 
[0x1b70d8]
Jul 12 18:26:06 norwell winbindd[23775]:    #4 /lib/tls/libc.so.6
(abort+0x1d5) [0x1b8705]
Jul 12 18:26:06 norwell winbindd[23775]:    #5 winbindd [0x61c6d2]
Jul 12 18:26:06 norwell winbindd[23775]:    #6 winbindd [0x61c955]
Jul 12 18:26:06 norwell winbindd[23775]:    #7 
winbindd(cli_krb5_get_ticket+0x242) [0x61ce32]
Jul 12 18:26:07 norwell winbindd[23775]:    #8 
winbindd(spnego_gen_negTokenTarg+0x62) [0x61e9c2]
Jul 12 18:26:07 norwell winbindd[23775]:    #9 winbindd [0x6def82]
Jul 12 18:26:07 norwell winbindd[23775]:    #10 winbindd [0x6df2ae]
Jul 12 18:26:07 norwell winbindd[23775]:    #11 
winbindd(ads_sasl_bind+0x150) [0x6dfb70]
Jul 12 18:26:07 norwell winbindd[23775]:    #12 
winbindd(ads_connect+0x1ea) [0x6d8f2a]
Jul 12 18:26:07 norwell winbindd[23775]:    #13 winbindd [0x6e5d3a]
Jul 12 18:26:07 norwell winbindd[23775]:    #14 
winbindd(ads_do_search_retry+0x46) [0x6e6026]
Jul 12 18:26:07 norwell winbindd[23775]:    #15 winbindd(ads_USN+0x66) 
[0x6dced6]
Jul 12 18:26:07 norwell winbindd[23775]:    #16 winbindd [0x593e59]
Jul 12 18:26:07 norwell winbindd[23775]:    #17 winbindd [0x57ab73]
Jul 12 18:26:07 norwell winbindd[23775]:    #18 winbindd [0x57b028]
Jul 12 18:26:07 norwell winbindd[23775]:    #19 winbindd [0x57d362]
Jul 12 18:26:07 norwell winbindd[23775]:    #20 
winbindd(winbindd_lookup_name_by_sid+0x5c) [0x57807c]
Jul 12 18:26:07 norwell winbindd[23775]:    #21 
winbindd(winbindd_getgrgid+0x109) [0x573e09]
Jul 12 18:26:07 norwell winbindd[23775]:    #22 winbindd [0x56ec77]
Jul 12 18:26:07 norwell winbindd[23775]:    #23 winbindd [0x56eeb8]
Jul 12 18:26:07 norwell winbindd[23775]:    #24 winbindd [0x57013a]
Jul 12 18:26:07 norwell winbindd[23775]:    #25 winbindd(main+0x5c5) 
[0x570745]
Jul 12 18:26:07 norwell winbindd[23775]:    #26 /lib/tls/libc.so.6
(__libc_start_main+0xda) [0x1a479a]
Jul 12 18:26:07 norwell winbindd[23775]:    #27 winbindd [0x56e532]
Jul 12 18:26:07 norwell winbindd[23775]: [2006/07/12 18:26:07, 0] 
lib/fault.c:dump_core(173)
Jul 12 18:26:07 norwell winbindd[23775]:   dumping core 
in /var/log/samba/cores/winbindd
Jul 12 18:26:07 norwell winbindd[23775]:
Jul 12 18:26:08 norwell winbindd[23792]: [2006/07/12 18:26:08, 0] 
nsswitch/winbindd_dual.c:child_read_request(49)
Jul 12 18:26:08 norwell winbindd[23792]:   Got invalid request length: 
0
Jul 12 18:26:08 norwell winbindd[23780]: [2006/07/12 18:26:08, 0] 
nsswitch/winbindd_dual.c:child_read_request(49)
Jul 12 18:26:08 norwell winbindd[23780]:   Got invalid request length: 
0
Jul 12 18:26:08 norwell winbindd[23776]: [2006/07/12 18:26:08, 0] 
nsswitch/winbindd_dual.c:child_read_request(49)
Jul 12 18:26:08 norwell winbindd[23776]:   Got invalid request length: 
0

The last few errors are thrown due to someone trying to access the box 
via samba?

Anyway, can someone give me some insight into the problem and how it 
might be fixed?

Sleepless in Seattle (well, no Dimitri really)

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