samba gets "INTERNAL ERROR: Signal 11" when a OSX client connects

[Nathan Grennan]

   Connecting with an OSX client to a server running Precise 12.04 and samba 3.6.3-2ubuntu2.3 it has the error below.

[2012/06/25 13:35:13.252295, 0] lib/fault.c:47(fault_report)
  ===============================================================
[2012/06/25 13:35:13.252430, 0] lib/fault.c:48(fault_report)
  INTERNAL ERROR: Signal 11 in pid 21742 (3.6.3)
  Please read the Trouble-Shooting section of the Samba3-HOWTO
[2012/06/25 13:35:13.252481, 0] lib/fault.c:50(fault_report)

  From: http://www.samba.org/samba/docs/Samba3-HOWTO.pdf
[2012/06/25 13:35:13.252528, 0] lib/fault.c:51(fault_report)
  ===============================================================
[2012/06/25 13:35:13.252563, 0] lib/util.c:1117(smb_panic)
  PANIC (pid 21742): internal error
[2012/06/25 13:35:13.256665, 0] lib/util.c:1221(log_stack_trace)
  BACKTRACE: 21 stack frames:
   #0 smbd(log_stack_trace+0x1a) [0x7fd7a8206aea]
   #1 smbd(smb_panic+0x25) [0x7fd7a8206bc5]
   #2 smbd(+0x409e88) [0x7fd7a81f7e88]
   #3 /lib/x86_64-linux-gnu/libc.so.6(+0x364c0) [0x7fd7a4da94c0]
   #4 smbd(copy_serverinfo+0x1a) [0x7fd7a825b84a]
   #5 smbd(make_server_info_guest+0x10) [0x7fd7a825ba30]
   #6 smbd(+0x46cf25) [0x7fd7a825af25]
   #7 smbd(+0x467782) [0x7fd7a8255782]
   #8 smbd(reply_sesssetup_and_X+0x13ff) [0x7fd7a7f2b3bf]
   #9 smbd(+0x176fa4) [0x7fd7a7f64fa4]
   #10 smbd(+0x1773bb) [0x7fd7a7f653bb]
   #11 smbd(+0x1777d3) [0x7fd7a7f657d3]
   #12 smbd(run_events_poll+0x34e) [0x7fd7a82168ae]
   #13 smbd(smbd_process+0x812) [0x7fd7a7f66f42]
   #14 smbd(+0x68666f) [0x7fd7a847466f]
   #15 smbd(run_events_poll+0x34e) [0x7fd7a82168ae]
   #16 smbd(+0x428a4a) [0x7fd7a8216a4a]
   #17 smbd(_tevent_loop_once+0x90) [0x7fd7a82175d0]
   #18 smbd(main+0xed0) [0x7fd7a7ee5030]
   #19 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed) [0x7fd7a4d9476d]
   #20 smbd(+0xf7515) [0x7fd7a7ee5515]
[2012/06/25 13:35:13.257056, 0] lib/util.c:1122(smb_panic)
  smb_panic(): calling panic action [/usr/share/samba/panic-action 21742]
[2012/06/25 13:35:13.313672, 0] lib/util.c:1130(smb_panic)
  smb_panic(): action returned status 0
[2012/06/25 13:35:13.313788, 0] lib/fault.c:372(dump_core)
  dumping core in /var/log/samba/cores/smbd

[Nathan Grennan (ngrennan)]

I was able to solve this crash by upgrading to 3.6.5-3ubuntu2 for quantal.

[Serge Hallyn (serge-hallyn)]

Thanks for reporting this bug. I will mark it fix released for quantal, and nominate it for precise.

[Serge Hallyn (serge-hallyn)]

@Nathan,

could you say any more about (a) the configuration on the server, and (b) exactly how you connected from macosx?

[Nathan Grennan (ngrennan)]

   I used Finder via Go -> Connect to Server. The path was smb://server/Documents.

Here are the configuration:

[global]
   workgroup = WORKGROUP
   server string = %h server
   dns proxy = no
   log file = /var/log/samba/log.%m
   max log size = 1000
   syslog = 0
   panic action = /usr/share/samba/panic-action %d
security = share
   encrypt passwords = true
   passdb backend = tdbsam
   obey pam restrictions = yes
   restrict anonymous = no
   guest account = wgguest
   map to guest = bad user
   passwd program = /usr/bin/yppasswd %u
   passwd chat = *Enter\snew\sUNIX\spassword:* %n\n *Retype\snew\sUNIX\spassword:* %n\n *passwd:*password\supdated\ssuccessfully* .
   socket options = TCP_NODELAY
[homes]
   comment = Home Directories
   browseable = yes
   writable = yes
   create mask = 0755
   directory mask = 0755
[Documents]
   comment = Documents
   writable = yes
   path = /mnt/Documents
   public = yes
   guest ok = yes
   guest only = yes
   browsable = yes
   force user = guest
   force group = users
   force create mask = 0644
   force directory mask = 0755
[print]
   comment = print
   writable = yes
   path = /mnt/print
   read only = no
   public = yes
   guest only = yes
   browsable = yes
   force user = guest
   force group = users
   force create mask = 0644
   force directory mask = 0755
[light]
   comment = light
   writable = yes
   path = /mnt/light
   read only = no
   public = yes
   guest only = yes
   browsable = yes
   force user = guest
   force group = users
   force create mask = 0644
   force directory mask = 0755