Comment 6 for bug 854457

i also get this alerts every 2 or 3 days even i restart winbindd every night.

The Samba 'panic action' script, /usr/share/samba/panic-action,
was called for PID 2081 (/usr/sbin/winbindd).

This means there was a problem with the program, such as a segfault.
Below is a backtrace for this process generated with gdb, which shows
the state of the program at the time the error occurred. The Samba log
files may contain additional information about the problem.

If the problem persists, you are encouraged to first install the
samba-dbg package, which contains the debugging symbols for the Samba
binaries. Then submit the provided information as a bug report to
Ubuntu by visiting this link:
https://launchpad.net/ubuntu/+source/samba/+filebug

[Thread debugging using libthread_db enabled]
[New Thread 0xb73276d0 (LWP 2081)]
0xb773d410 in __kernel_vsyscall ()
#0 0xb773d410 in __kernel_vsyscall ()
#1 0xb74e6593 in waitpid () from /lib/tls/i686/cmov/libc.so.6
#2 0xb7489643 in ?? () from /lib/tls/i686/cmov/libc.so.6
#3 0x08123408 in smb_panic (why=0x82772c0 "internal error")
    at lib/util.c:1639
#4 0x0810dc2a in sig_fault (sig=6) at lib/fault.c:47
#5 <signal handler called>
#6 0xb773d410 in __kernel_vsyscall ()
#7 0xb747c085 in raise () from /lib/tls/i686/cmov/libc.so.6
#8 0xb747da01 in abort () from /lib/tls/i686/cmov/libc.so.6
#9 0xb747510e in __assert_fail () from /lib/tls/i686/cmov/libc.so.6
#10 0xb75bcc3a in ldap_parse_result () from /usr/lib/libldap_r-2.4.so.2
#11 0x0823a1ac in ads_do_paged_search_args (ads=0x83590b0,
    bind_path=<value optimized out>, scope=0,
    expr=0x8265a95 "(objectclass=*)", attrs=0xbfde68b0, args=0x0,
    res=0xbfde68b8, count=0xbfde67d4, cookie=0xbfde67d8) at libads/ldap.c:700
#12 0x0823a52f in ads_do_search_all_args (ads=0x83590b0,
    bind_path=0x8363070 "", scope=0, expr=0x8265a95 "(objectclass=*)",
    attrs=0xbfde68b0, args=0x0, res=0xbfde68b8) at libads/ldap.c:772
#13 0x08243ac9 in ads_do_search_retry_internal (ads=0x83590b0,
    bind_path=0x82aabd5 "", scope=0, expr=0x8265a95 "(objectclass=*)",
    attrs=0xbfde68b0, args=0x0, res=0xbfde68b8) at libads/ldap_utils.c:60
#14 0x0824403a in ads_do_search_retry (ads=0x83590b0, bind_path=0x82aabd5 "",
    scope=0, expr=0x8265a95 "(objectclass=*)", attrs=0xbfde68b0,
    res=0xbfde68b8) at libads/ldap_utils.c:124
#15 0x0823702c in ads_USN (ads=0x83590b0, usn=0x8333df4) at libads/ldap.c:2330
#16 0x080b42f9 in sequence_number (domain=0x8333970, seq=0x8333df4)
    at nsswitch/winbindd_ads.c:1021
#17 0x08098ad1 in refresh_sequence_number (domain=0x8333970,
    force=<value optimized out>) at nsswitch/winbindd_cache.c:479
#18 0x080990f9 in wcache_fetch (cache=0x8332888, domain=0x8333970,
    format=0x82609bd "NS/%s/%s") at nsswitch/winbindd_cache.c:601
#19 0x0809b74d in name_to_sid (domain=0x8333970, mem_ctx=0x82e93c8,
    domain_name=0xbfde6f24 "HKOFFICE", name=0xbfde7024 "root",
    sid=0xbfde6c74, type=0xbfde6cb8) at nsswitch/winbindd_cache.c:1358
#20 0x08094391 in winbindd_lookup_sid_by_name (mem_ctx=0x82e93c8,
    domain=0x8333970, domain_name=0xbfde6f24 "HKOFFICE",
    name=0xbfde7024 "root", sid=0xbfde6c74, type=0xbfde6cb8)
    at nsswitch/winbindd_util.c:707
#21 0x080bde18 in winbindd_dual_lookupname (domain=0x8333970,
    state=0xbfde6dc8) at nsswitch/winbindd_async.c:953
#22 0x080b9598 in schedule_async_request (child=0x8333e48)
    at nsswitch/winbindd_dual.c:481
#23 0x0809604e in init_child_connection (domain=0x8333970,
    continuation=0x80badb0 <domain_init_recv>, private_data=0x8336c20)
    at nsswitch/winbindd_util.c:373
#24 0x080bafa6 in async_domain_request (mem_ctx=0x8335660, domain=0x8333970,
    request=0x83356e0, response=0x8335f40,
    continuation=0x80967a0 <trustdom_recv>, private_data_data=0x8334318)
    at nsswitch/winbindd_dual.c:359
#25 0x08096690 in rescan_trusted_domains () at nsswitch/winbindd_util.c:217
#26 0x0808c1df in main (argc=) at nsswitch/winbindd.c:754
The program is running. Quit anyway (and detach it)? (y or n) [answered Y; input not from terminal]