[Samba] smbd crash when leaving large AD domain
shani wijaya
ridgetreeway at yahoo.com
Thu Oct 18 12:13:02 MDT 2012
Hi All
When we join a domain (With large number of user - ~25k)
and subsequently leave the domain smbd crashes with the following
backtrace in log.smbd
BACKTRACE: 21 stack frames:
#0 smbd(log_stack_trace+0x2d) [0x77cac5]
#1 smbd(smb_panic+0x7c) [0x77cbf7]
#2 smbd [0x76bd6c]
#3 [0xf7c420]
#4 /usr/lib/libkrb5.so.3(krb5int_locate_server+0x114) [0x217f14]
#5 /usr/lib/libkrb5.so.3(krb5_locate_kdc+0x46) [0x2184e6]
#6 /usr/lib/libkrb5.so.3(krb5_sendto_kdc+0xb0) [0x21a580]
#7 /usr/lib/libkrb5.so.3 [0x1f8b82]
#8 /usr/lib/libkrb5.so.3(krb5_get_init_creds+0x78d) [0x1f9c3d]
#9 /usr/lib/libkrb5.so.3(krb5_get_init_creds_password+0x2bb) [0x1fbecb]
#10 smbd(kerberos_kinit_password_ext+0x22b) [0xac5ccb]
#11 smbd(ads_kinit_password+0x11f) [0xac5fae]
#12 smbd [0xaba0b6]
#13 smbd(ads_sasl_bind+0x185) [0xab83f5]
#14 smbd(ads_connect+0xafd) [0xab69d9]
#15 smbd(check_published_printers+0x116) [0x7b5118]
#16 smbd(nt_printing_init+0xc1e) [0x7bc09b]
#17 smbd(print_backend_init+0x186) [0x7aee91]
#18 smbd(main+0xa62) [0xb0cf30]
#19 /lib/libc.so.6(__libc_start_main+0xdc) [0xd2ce9c]
#20 smbd [0x4b3b61]
[2012/10/17 14:29:59.452640, 0] lib/fault.c:326(dump_core)
Can anybody shed some light on this?
We are using CentOS 5.8 and using authconfig to configure AD.
As far as I can tell smb.conf and krb5.conf are configured properly.
This is not frequent though. We have to join and leave the domain several
times before we reproduce this problem. I have also seen cases that when we run
kinit, the knint segfaults in the same system. But I have seen this only a few
times.
Any insights will be much appreciated.
Thanks in advance
Ridgetree
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