Bug 6457 - smbd: Internal Error 11 - seg fault in print change notify code
smbd: Internal Error 11 - seg fault in print change notify code
Status: NEW
Product: Samba 3.2
Classification: Unclassified
Component: File services
3.2.5
x86 Linux
: P3 major
: ---
Assigned To: Volker Lendecke
Samba QA Contact
:
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2009-06-09 23:01 UTC by David Castor
Modified: 2009-06-19 11:24 UTC (History)
1 user (show)

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Description David Castor 2009-06-09 23:01:47 UTC
Samba Panic and Internal Error periodically.  Mostly found in log for one client Windows XP machine.  Text of log file follows.  The cores directory was empty, despite the message below. 

[2009/06/09 10:55:31,  0] lib/fault.c:fault_report(41)
  INTERNAL ERROR: Signal 11 in pid 31514 (3.2.5)
  Please read the Trouble-Shooting section of the Samba3-HOWTO
[2009/06/09 10:55:31,  0] lib/fault.c:fault_report(43)
  
  From: http://www.samba.org/samba/docs/Samba3-HOWTO.pdf
[2009/06/09 10:55:31,  0] lib/fault.c:fault_report(44)
  ===============================================================
[2009/06/09 10:55:31,  0] lib/util.c:smb_panic(1663)
  PANIC (pid 31514): internal error
[2009/06/09 10:55:31,  0] lib/util.c:log_stack_trace(1767)
  BACKTRACE: 22 stack frames:
   #0 /usr/sbin/smbd(log_stack_trace+0x2d) [0x8201d24]
   #1 /usr/sbin/smbd(smb_panic+0x80) [0x8201e81]
   #2 /usr/sbin/smbd [0x81ecc73]
   #3 [0xb7f9e400]
   #4 /usr/sbin/smbd(cli_receive_smb+0x83) [0x80efe82]
   #5 /usr/sbin/smbd(cli_negprot+0x1a1) [0x80f1761]
   #6 /usr/sbin/smbd(cli_start_connection+0x3d7) [0x80f2060]
   #7 /usr/sbin/smbd(cli_full_connection+0x85) [0x80f55db]
   #8 /usr/sbin/smbd(_spoolss_rffpcnex+0x533) [0x816d31a]
   #9 /usr/sbin/smbd [0x815c9d6]
   #10 /usr/sbin/smbd(api_rpcTNP+0x2b6) [0x818d229]
   #11 /usr/sbin/smbd(api_pipe_request+0x238) [0x818d821]
   #12 /usr/sbin/smbd [0x8186d85]
   #13 /usr/sbin/smbd(write_to_pipe+0x13d) [0x818530e]
   #14 /usr/sbin/smbd [0x841506e]
   #15 /usr/sbin/smbd [0x84157d5]
   #16 /usr/sbin/smbd(reply_trans+0x726) [0x84163c8]
   #17 /usr/sbin/smbd [0x80de096]
   #18 /usr/sbin/smbd(smbd_process+0x429) [0x80dfbe1]
   #19 /usr/sbin/smbd(main+0xfa2) [0x80a747f]
   #20 /lib/i686/cmov/libc.so.6(__libc_start_main+0xe5) [0xb7b54455]
   #21 /usr/sbin/smbd [0x80a4511]
[2009/06/09 10:55:31,  0] lib/util.c:smb_panic(1668)
  smb_panic(): calling panic action [/usr/share/samba/panic-action 31514]
[2009/06/09 10:55:31,  0] lib/util.c:smb_panic(1676)
  smb_panic(): action returned status 0
[2009/06/09 10:55:31,  0] lib/fault.c:dump_core(201)
  dumping core in /var/log/samba/cores/smbd
[2009/06/09 10:56:06,  1] smbd/service.c:make_connection_snum(1194)
  hp-audrey (::ffff:192.168.1.199) connect to service Projects initially as user audrey (uid=1003, gid=1003) (pid
Comment 1 Volker Lendecke 2009-06-16 09:00:23 UTC
Is there a possibility that you install debuginfo packages? This way we would get the exact line number of the crash. It would be absolutely brilliant if you could run that smbd under valgrind --tool=memcheck. Be aware that valgrind slows down operations a LOT (10x or more).

Volker
Comment 2 David Castor 2009-06-18 11:53:27 UTC
(In reply to comment #1)
> Is there a possibility that you install debuginfo packages? This way we would
> get the exact line number of the crash. It would be absolutely brilliant if you
> could run that smbd under valgrind --tool=memcheck. Be aware that valgrind
> slows down operations a LOT (10x or more).
> 
> Volker
> 

I'm afraid I'm not familiar with debuginfo packages.  Is there somewhere I can download?   Running valgrind is probably not an option on this server at this point.  Sorry I can't be of more help. 
Comment 3 Volker Lendecke 2009-06-19 03:43:00 UTC
Ok, what kind of Unix are you using? If it is a recent Linux distro, it might be the case that you have additional Samba packages that have "debuginfo" in their names. Just install them and wait for the next crash, if all goes right then you will see line numbers in the backtrace. Please upload that.

Thanks,

Volker
Comment 4 David Castor 2009-06-19 11:24:53 UTC
The server is running Debian Lenny.  I did a package search but found nothing containing "debuginfo" related to Samba.

Regards,

David