[Samba] Samba 3.0.20a and Winbind crashing (bug?)

[sysrm at stvincent.ac.uk]

Hi all.

having major issues on all my servers at the moment.

All running RHES 3, all with samba 3.0.20a and all have the winbind
crashing problem :/

the main 2 are the filestore and email servers, also get the most usage.

in fact from my systems point of view, its definatly a most usage = most
frequent winbind crashing issue.

Any help from others or the dev team gratefully received.

NB i have also set a cron to restart smb at 22:00 every night.

Many thanks

Ross

LOG FOLLOWS

0:[2005/10/09 11:40:01, 1] nsswitch/winbindd_group.c:winbindd_getgrnam(255)
74-  group enstaff in domain ACADEMIC does not exist
124:[2005/10/09 11:40:02, 1] nsswitch/winbindd_group.c:winbindd_getgrnam(255)
198-  group gestaff in domain ACADEMIC does not exist
248:[2005/10/09 11:40:02, 1] nsswitch/winbindd_group.c:winbindd_getgrnam(255)
322-  group meweb in domain ACADEMIC does not exist
370:[2005/10/09 11:40:05, 1] nsswitch/winbindd_group.c:winbindd_getgrnam(255)
444-  group peweb in domain ACADEMIC does not exist
492:[2005/10/09 11:40:06, 1] nsswitch/winbindd_group.c:winbindd_getgrnam(255)
566-  group ssstaff in domain ACADEMIC does not exist
616:[2005/10/09 11:40:07, 1] nsswitch/winbindd_group.c:winbindd_getgrnam(255)
690-  group psyweb in domain ACADEMIC does not exist
739:[2005/10/09 11:40:08, 1] nsswitch/winbindd_group.c:winbindd_getgrnam(255)
813-  group paweb in domain ACADEMIC does not exist
861:[2005/10/09 11:40:08, 1] nsswitch/winbindd_group.c:winbindd_getgrnam(255)
935-  group citizweb in domain ACADEMIC does not exist
986:[2005/10/09 11:40:08, 1] nsswitch/winbindd_group.c:winbindd_getgrnam(255)
1060-  group lrcweb in domain ACADEMIC does not exist
1109-[2005/10/09 11:40:11, 0] lib/fault.c:fault_report(36)
1163-  ===============================================================
1229-[2005/10/09 11:40:11, 0] lib/fault.c:fault_report(37)
1283-  INTERNAL ERROR: Signal 6 in pid 28787 (3.0.20a)
1333-  Please read the Trouble-Shooting section of the Samba3-HOWTO
1396-[2005/10/09 11:40:11, 0] lib/fault.c:fault_report(39)
1450-
1453-  From: http://www.samba.org/samba/docs/Samba3-HOWTO.pdf
1510-[2005/10/09 11:40:11, 0] lib/fault.c:fault_report(40)
1564-  ===============================================================
1630-[2005/10/09 11:40:11, 0] lib/util.c:smb_panic2(1548)
1683-  PANIC: internal error
1707-[2005/10/09 11:40:11, 0] lib/util.c:smb_panic2(1556)
1760-  BACKTRACE: 28 stack frames:
1790:   #0 /usr/local/samba/sbin/winbindd(smb_panic2+0x1c5) [0xbf5bfa]
1856:   #1 /usr/local/samba/sbin/winbindd(smb_panic+0x1d) [0xbf5a30]
1920:   #2 /usr/local/samba/sbin/winbindd [0xbe2c4c]
1968:   #3 /usr/local/samba/sbin/winbindd [0xbe2ca4]
2016-   #4 /lib/tls/libc.so.6 [0x6edeb8]
2052-   #5 /lib/tls/libc.so.6(abort+0x1d5) [0x6ef4e5]
2101:   #6 /usr/local/samba/sbin/winbindd [0xc17279]
2149:   #7 /usr/local/samba/sbin/winbindd [0xc1761f]
2197:   #8 /usr/local/samba/sbin/winbindd(cli_krb5_get_ticket+0x1f2)
[0xc17972]
2272:   #9 /usr/local/samba/sbin/winbindd(spnego_gen_negTokenTarg+0x40)
[0xc18579]
2350:   #10 /usr/local/samba/sbin/winbindd [0xc9f2e7]
2399:   #11 /usr/local/samba/sbin/winbindd [0xc9f5db]
2448:   #12 /usr/local/samba/sbin/winbindd(ads_sasl_bind+0x125) [0xc9fbfb]
2518:   #13 /usr/local/samba/sbin/winbindd(ads_connect+0x23d) [0xc99dc1]
2586:   #14 /usr/local/samba/sbin/winbindd [0xba9ff5]
2635:   #15 /usr/local/samba/sbin/winbindd [0xbac0ab]
2684:   #16 /usr/local/samba/sbin/winbindd [0xb9cdfd]
2733:   #17 /usr/local/samba/sbin/winbindd [0xb9d03c]
2782:   #18 /usr/local/samba/sbin/winbindd [0xb9e481]
2831:   #19
/usr/local/samba/sbin/winbindd(winbindd_lookup_sid_by_name+0x28)
[0xb9ac1e]
2914:   #20 /usr/local/samba/sbin/winbindd(winbindd_getgrnam+0x20e)
[0xb973f5]
2988:   #21 /usr/local/samba/sbin/winbindd [0xb93630]
3037:   #22 /usr/local/samba/sbin/winbindd [0xb93d6e]
3086:   #23 /usr/local/samba/sbin/winbindd [0xb938df]
3135:   #24 /usr/local/samba/sbin/winbindd [0xb942ee]
3184:   #25 /usr/local/samba/sbin/winbindd(main+0x52c) [0xb94b15]
3245-   #26 /lib/tls/libc.so.6(__libc_start_main+0xda) [0x6db78a]
3306:   #27 /usr/local/samba/sbin/winbindd [0xb92ec2]