The Samba-Bugzilla – Bug 4228
PANIC with LDAP
Last modified: 2008-12-17 18:33:15 UTC
Here is description of my first problem I encountered during setting up samba 3.0.23c and LDAP 2.3.28. Linux box is one of intel server platforms and debian etch (unstable) on board. Debian has its own ldap libraries in /usr/ldap.... and there are more then one but with different version ldap files. Despite of these I always compile almost everything from sources so this time I tried ldap-2.3.28. I compiled it, installed in opt/ldap, populated and run. So far so good.
Next I started compiling samba 3.0.23c but theres is no switch to pass LDAP directory so I simply exported CPPFLAGS and LDFLAGS so samba can find ldap.h and appropriate libraries. Done OK. Next I checked samba's libs with ldd to be sure that there are linked to good ldap libraries.
So I run samba. First attempt to authorize and PANIC:
[2006/11/13 11:23:10, 3] smbd/connection.c:yield_connection(69)
Yielding connection to
[2006/11/13 11:23:10, 3] smbd/server.c:exit_server(655)
Server exit (normal exit)
[2006/11/13 11:23:10, 0] lib/fault.c:fault_report(36)
[2006/11/13 11:23:10, 0] lib/fault.c:fault_report(37)
INTERNAL ERROR: Signal 11 in pid 27144 (3.0.22)
Please read the Trouble-Shooting section of the Samba3-HOWTO
[2006/11/13 11:23:10, 0] lib/fault.c:fault_report(39)
[2006/11/13 11:23:10, 0] lib/fault.c:fault_report(40)
[2006/11/13 11:23:10, 0] lib/util.c:smb_panic2(1554)
PANIC: internal error
[2006/11/13 11:23:10, 0] lib/util.c:smb_panic2(1562)
BACKTRACE: 13 stack frames:
#0 /opt/samba-3.0.22/sbin/smbd(smb_panic2+0x1ac) [0x7572b13d]
#1 /opt/samba-3.0.22/sbin/smbd(smb_panic+0x19) [0x7572b21d]
#2 /opt/samba-3.0.22/sbin/smbd [0x75716d03]
#4 /usr/lib/libldap_r.so.2 [0xa7b1ecf1]
#5 /usr/lib/libldap_r.so.2 [0xa7b05190]
#6 /usr/lib/libldap_r.so.2 [0xa7b2b4ba]
#7 /lib/ld-linux.so.2 [0xa7f4eede]
#8 /lib/tls/libc.so.6(exit+0xd0) [0xa7da24f0]
#9 /opt/samba-3.0.22/sbin/smbd [0x757b1f12]
#10 /opt/samba-3.0.22/sbin/smbd(main+0x1633) [0x757b38c3]
#11 /lib/tls/libc.so.6(__libc_start_main+0xc8) [0xa7d8bea8]
#12 /opt/samba-3.0.22/sbin/smbd [0x755904e1]
[2006/11/13 11:23:10, 3] smbd/sec_ctx.c:push_sec_ctx(256)
push_sec_ctx(0, 0) : sec_ctx_stack_ndx = 1
[2006/11/13 11:23:10, 3] smbd/uid.c:push_conn_ctx(393)
push_conn_ctx(0) : conn_ctx_stack_ndx = 0
[2006/11/13 11:23:10, 3] smbd/sec_ctx.c:set_sec_ctx(288)
setting sec ctx (0, 0) - sec_ctx_stack_ndx = 1
[2006/11/13 11:23:10, 3] smbd/sec_ctx.c:pop_sec_ctx(386)
pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
Why /usr/lib/libldap_2.so.2 in this log??? Hmmm it was strange, but I compiled samba with debug mode but it was too much helpfull or maybe I did something wrong:
1) compile with --enable-debug --enable-developer
2) run: gdb ; attach PID; bt; -> NOTHING - much less than in samba log file.
...so I can't provide this time more.... maybe you can help me what to do with this gdb and backtrace to get more details?
Anyway I found workaround .... I simply changed link /usr/lib/libldap_r.so.2 to point to /opt/ldap/lib/libldapxxxx - now it works. But it doesn't really explain why samba uses libldap_2 from /usr/lib/ since I've switched to /opt/ldap/???
this is really a screwed up setup. having different ldap libs around and use samba with the non-default ones is always a bad thing as the default system ldap libs almost always come in through other libs being used that are linked against the system ldap libs.