smbd doesn't start, fails to generate "machine SID," dumps core

[Can Berk Güder]

Binary package hint: samba

smbd crashes immediately upon start on Intrepid.

I have recently uninstalled libpam-smbpass due to a bug in that package, but reinstalling it doesn't change anything, so that's not the cause.

# lsb_release -rd
Description: Ubuntu 8.10
Release: 8.10

# apt-cache policy samba
samba:
  Installed: 2:3.2.3-1ubuntu3.1
  Candidate: 2:3.2.3-1ubuntu3.1
  Version table:
 *** 2:3.2.3-1ubuntu3.1 0
        500 http://archive.ubuntu.com intrepid-updates/main Packages
        100 /var/lib/dpkg/status
     2:3.2.3-1ubuntu3 0
        500 http://archive.ubuntu.com intrepid/main Packages

# sudo smbd -i
smbd version 3.2.3 started.
Copyright Andrew Tridgell and the Samba Team 1992-2008
tdb(/var/lib/samba/secrets.tdb): transaction_read: failed at off=1948282469 len=24
tdb(/var/lib/samba/secrets.tdb): transaction_read: failed at off=1948282469 len=24
tdb(/var/lib/samba/secrets.tdb): transaction_read: failed at off=1948282469 len=24
tdb(/var/lib/samba/secrets.tdb): transaction_read: failed at off=1948282469 len=24
tdb(/var/lib/samba/secrets.tdb): transaction_read: failed at off=1650750572 len=24
pdb_generate_sam_sid: Failed to store generated machine SID.
PANIC (pid 12135): could not generate a machine SID
BACKTRACE: 6 stack frames:
 #0 smbd(log_stack_trace+0x1c) [0x7f282ced6cbd]
 #1 smbd(smb_panic+0x5b) [0x7f282ced6dcb]
 #2 smbd(get_global_sam_sid+0x6ad) [0x7f282cdf5682]
 #3 smbd(main+0x980) [0x7f282cd9617d]
 #4 /lib/libc.so.6(__libc_start_main+0xe6) [0x7f2829a06466]
 #5 smbd [0x7f282cd94d89]
smb_panic(): calling panic action [/usr/share/samba/panic-action 12135]
smb_panic(): action returned status 0
dumping core in /var/log/samba/cores/smbd
Aborted (core dumped)

# tail -n 32 /var/log/samba/log.smbd
  smbd version 3.2.3 started.
  Copyright Andrew Tridgell and the Samba Team 1992-2008
[2008/11/26 22:36:12, 0] smbd/server.c:main(1264)
  standard input is not a socket, assuming -D option
[2008/11/26 22:36:12, 0] lib/util_tdb.c:tdb_wrap_log(886)
  tdb(/var/lib/samba/secrets.tdb): transaction_read: failed at off=1948282469 len=24
[2008/11/26 22:36:12, 0] lib/util_tdb.c:tdb_wrap_log(886)
  tdb(/var/lib/samba/secrets.tdb): transaction_read: failed at off=1948282469 len=24
[2008/11/26 22:36:12, 0] lib/util_tdb.c:tdb_wrap_log(886)
  tdb(/var/lib/samba/secrets.tdb): transaction_read: failed at off=1948282469 len=24
[2008/11/26 22:36:12, 0] lib/util_tdb.c:tdb_wrap_log(886)
  tdb(/var/lib/samba/secrets.tdb): transaction_read: failed at off=1948282469 len=24
[2008/11/26 22:36:12, 0] lib/util_tdb.c:tdb_wrap_log(886)
  tdb(/var/lib/samba/secrets.tdb): transaction_read: failed at off=1650750572 len=24
[2008/11/26 22:36:12, 0] passdb/machine_sid.c:pdb_generate_sam_sid(166)
  pdb_generate_sam_sid: Failed to store generated machine SID.
[2008/11/26 22:36:12, 0] lib/util.c:smb_panic(1663)
  PANIC (pid 9691): could not generate a machine SID
[2008/11/26 22:36:12, 0] lib/util.c:log_stack_trace(1767)
  BACKTRACE: 6 stack frames:
   #0 /usr/sbin/smbd(log_stack_trace+0x1c) [0x7f7b7fbbecbd]
   #1 /usr/sbin/smbd(smb_panic+0x5b) [0x7f7b7fbbedcb]
   #2 /usr/sbin/smbd(get_global_sam_sid+0x6ad) [0x7f7b7fadd682]
   #3 /usr/sbin/smbd(main+0x980) [0x7f7b7fa7e17d]
   #4 /lib/libc.so.6(__libc_start_main+0xe6) [0x7f7b7c6ee466]
   #5 /usr/sbin/smbd [0x7f7b7fa7cd89]
[2008/11/26 22:36:12, 0] lib/util.c:smb_panic(1668)
  smb_panic(): calling panic action [/usr/share/samba/panic-action 9691]
[2008/11/26 22:36:12, 0] lib/util.c:smb_panic(1676)
  smb_panic(): action returned status 0
[2008/11/26 22:36:12, 0] lib/fault.c:dump_core(201)
  dumping core in /var/log/samba/cores/smbd

[Can Berk Güder (cbguder)]

removing secrets.tdb solved the problem.