[Samba] Problem with Samba 3.4 Franky: Internal Error starting Samba3

Tue Sep 8 03:41:09 MDT 2009

I've investigated further onto this problem by starting smbd with debug 
level 10. The "no version information available" message seems not to be 
the problem. It further looks like smbd can generally connect to the 
Samba4-ADS ("pdb backend ads has a valid init" and several successful 
pathtree_add, though my interpretation might be wrong).

The real problem seems to be connected to the user:

-------- snip --------
Cache entry with key = IDMAP/UID2SID/0 couldn't be found
uid_to_sid: winbind failed to find a sid for uid 0
push_sec_ctx(0, 0) : sec_ctx_stack_ndx = 1
push_conn_ctx(0) : conn_ctx_stack_ndx = 0
setting sec ctx (0, 0) - sec_ctx_stack_ndx = 1
NT user token: (NULL)
UNIX token of user 0
Primary group is 0 and contains 0 supplementary groups
pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
LEGACY: uid 0 -> sid S-1-22-1-0
Cache entry with key = IDMAP/GID2SID/0 couldn't be found
gid_to_sid: winbind failed to find a sid for gid 0
push_sec_ctx(0, 0) : sec_ctx_stack_ndx = 1
push_conn_ctx(0) : conn_ctx_stack_ndx = 0
setting sec ctx (0, 0) - sec_ctx_stack_ndx = 1
NT user token: (NULL)
UNIX token of user 0
Primary group is 0 and contains 0 supplementary groups
pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
LEGACY: gid 0 -> sid S-1-5-21-1185138813-3764441650-1242382106-0
Create local NT token for S-1-22-1-0
Cache entry with key = IDMAP/SID2GID/S-1-5-32-544 couldn't be found
-------- snap --------

To my understanding, winbind cannot find a sid for user root (who has 
uid 0). That's probably due to the fact that I started smbd as root user 
for testing purposes.

Unfortunately this is where my knowledge ends. I'm a rather newbie to 
Samba and LDAP, so help is really appreciated. I'm quite sure it's just 
a small thing I missed.

Can anyone help?

Thx!
Chris

Am 07.09.2009 12:25, schrieb Christian Geiger:
> Hi all,
>
> I got a problem while trying to set up a Samba 3.4 Server in hybrid-mode.
> After trying for some time I managed doing a merged-build of Samba3 and
> Samba4 and I can now start samba4 without getting errors. However, the
> same is not true for Samba3: starting it, I get the below error message.
> Has anyone an idea about what the reason could be? Did I miss anything
> during build/setup?
>
> Thank you very much in advance for your help! If you need any further
> information, please let me know.
>
> Best regards
> Chris
>
>
> ----------------------
> =>  console output smbd
> -------- snip --------
>
> root at guardian:/var/run/samba/samba3# smbd -i -s /etc/samba/smb3.conf
> smbd: /usr/local/lib/liblber-2.4.so.2: no version information available
> (required by smbd)
> smbd: /usr/local/lib/libldap_r-2.4.so.2: no version information available
> (required by smbd)
> smbd version 3.4.0-GIT-38995d7-devel started.
> Copyright Andrew Tridgell and the Samba Team 1992-2009
> ===============================================================
> INTERNAL ERROR: Signal 6 in pid 1395 (3.4.0-GIT-38995d7-devel)
> Please read the Trouble-Shooting section of the Samba3-HOWTO
>
> From: http://www.samba.org/samba/docs/Samba3-HOWTO.pdf
> ===============================================================
> smb_panic: clobber_region() last called from [sid_to_fstring(178)]
> PANIC (pid 1395): internal error
> BACKTRACE: 18 stack frames:
>   #0 smbd(log_stack_trace+0x2b) [0x84874ab]
>   #1 smbd(smb_panic+0x180) [0x848724e]
>   #2 smbd [0x8470ab8]
>   #3 smbd [0x8470ac9]
>   #4 [0xb7f13400]
>   #5 /lib/tls/i686/cmov/libc.so.6(abort+0x188) [0xb7bee098]
>   #6 /usr/lib/libtalloc.so.1(talloc_free+0x22d) [0xb7afa5dd]
>   #7 /usr/lib/libwbclient.so.0(wbcFreeMemory+0x21) [0xb7d3cd93]
>   #8 /usr/lib/libwbclient.so.0(wbcSidToGid+0xb4) [0xb7d3f26d]
>   #9 smbd(winbind_sid_to_gid+0x3e) [0x8444936]
>   #10 smbd(sid_to_gid+0x1bd) [0x8409419]
>   #11 smbd(create_local_nt_token+0x3f8) [0x8507eca]
>   #12 smbd(get_root_nt_token+0x1be) [0x8506fff]
>   #13 smbd(svcctl_init_keys+0x2d) [0x832a88c]
>   #14 smbd(registry_init_full+0xa4) [0x8923a4c]
>   #15 smbd(main+0xe68) [0x895fed1]
>   #16 /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe5) [0xb7bd7775]
>   #17 smbd [0x80de0e1]
> smb_panic(): calling panic action [/bin/sleep 999999999]
>
> -------- snap --------
>
>
> ----------------------
> =>  console output samba4
> -------- snip --------
>
> root at guardian:/usr/local/samba/etc# samba4 -i -s /etc/samba/smb4.conf
> samba version 3.4.0-GIT-38995d7-devel started.
> Copyright Andrew Tridgell and the Samba Team 1992-2009
> samba: using 'standard' process model
>
> -------- snap --------
>
>
> ----------------------
> =>  smb3.conf
> -------- snip --------
>
> [globals]
>          netbios name    = guardian
>          workgroup       = myworkgroup
>          realm           = mydomain.de
>          security        = ads
>          passdb backend  = ads
>          pid directory   = /var/run/samba/samba3/
>
> [netlogon]
>          path = /usr/local/samba/var/locks/sysvol/mydomain.de/scripts
>          read only = no
>
> [sysvol]
>          path = /usr/local/samba/var/locks/sysvol
>          read only = no
>
> [share]
>          path = /share
>          read only = no
>
> -------- snap -------
>
>
> ----------------------
> =>  smb4.conf
> -------- snip --------
>
> [globals]
>          netbios name    = guardian
>          workgroup       = myworkgroup
>          realm           = mydomain.de
>          server role     = domain controller
>          server services = ldap, cldap, kdc
>          socket address  = 127.0.0.1
>          pid directory   = /var/run/samba/samba4/
>
> -------- snap --------
>