[Samba] Re: INTERNAL ERROR: Signal 11 in pid 8928 (3.0.23c)

[Nolan Garrett]

Nolan Garrett wrote:
> Jeremy Allison wrote:
>> On Sat, Sep 16, 2006 at 02:25:47PM -0700, Nolan Garrett wrote:
>>> Hello!
>>>
>>> It seems my struggle with Samba isn't quite over.  My latest problem is
>>> exactly what you see above, followed by an attempt to core dump.  This
>>> occurs upon authentication to the system.  My system is part of a W2K3
>>> domain.  I looked at the Samba HOWTO, but apparently I have a system
>>> (FC5), that doesn't allow core dumps when the PID changes, since no core
>>> dumps are being created.  Also, smbstatus doesn't give me a PID, so I am
>>> having a hard time running gdb to further understand this issue.  Here
>>> is the log output:
>>>
>  snip
>>> I'm running:
>>> samba-3.0.23c-4
>>> samba-client-3.0.23c-4
>>> samba-common-3.0.23c-4
>>>
>>> Any ideas on this?
>> For a core dump, add the lines :
>>
>> panic action = /bin/sleep 999999
>>
>> to the [global] section of your smb.conf, and
>> reproduce the problem. The smbd will hang waiting
>> for the sleep to finish, allowing you to attach
>> to the waiting smbd process with gdb. You can then
>> print out a backtrace with symbols which is a much
>> more helpful review of the problem.
>>
>> Thanks,
>>
>> 	Jeremy.
>>
> 
> 
> I appreciate the response!  I am not 100% familiar with gdb, but I did
> what I could to get some more information.  Here are the results of the
> "backtrace" command in gdb:
> 
> #0  0x00203402 in __kernel_vsyscall ()
> #1  0x0049a4a3 in __waitpid_nocancel () from /lib/libc.so.6
> #2  0x0044293f in do_system () from /lib/libc.so.6
> #3  0x0060203d in system () from /lib/libpthread.so.0
> #4  0x00af7b7d in smb_panic () from /usr/sbin/smbd
> #5  0x00ae349a in dump_core_setup () from /usr/sbin/smbd
> #6  <signal handler called>
> #7  0x00b3fd54 in create_token_from_username () from /usr/sbin/smbd
> #8  0x00b40d61 in create_local_token () from /usr/sbin/smbd
> #9  0x00b42b55 in auth_ntlmssp_start () from /usr/sbin/smbd
> #10 0x009ce5b8 in ntlmssp_set_username () from /usr/sbin/smbd
> #11 0x009ccaa2 in ntlmssp_update () from /usr/sbin/smbd
> #12 0x00b427eb in auth_ntlmssp_update () from /usr/sbin/smbd
> #13 0x0095d4a9 in reply_sesssetup_and_X () from /usr/sbin/smbd
> #14 0x0098b0d0 in open_was_deferred () from /usr/sbin/smbd
> #15 0x0098c20b in smbd_process () from /usr/sbin/smbd
> #16 0x00ba6110 in main () from /usr/sbin/smbd
> 
> 
> "backtrace full" gives me:
> 
> #0  0x00203402 in __kernel_vsyscall ()
> No symbol table info available.
> #1  0x0049a4a3 in __waitpid_nocancel () from /lib/libc.so.6
> No symbol table info available.
> #2  0x0044293f in do_system () from /lib/libc.so.6
> No symbol table info available.
> #3  0x0060203d in system () from /lib/libpthread.so.0
> No symbol table info available.
> #4  0x00af7b7d in smb_panic () from /usr/sbin/smbd
> No symbol table info available.
> #5  0x00ae349a in dump_core_setup () from /usr/sbin/smbd
> No symbol table info available.
> #6  <signal handler called>
> No symbol table info available.
> #7  0x00b3fd54 in create_token_from_username () from /usr/sbin/smbd
> No symbol table info available.
> #8  0x00b40d61 in create_local_token () from /usr/sbin/smbd
> No symbol table info available.
> #9  0x00b42b55 in auth_ntlmssp_start () from /usr/sbin/smbd
> No symbol table info available.
> #10 0x009ce5b8 in ntlmssp_set_username () from /usr/sbin/smbd
> No symbol table info available.
> #11 0x009ccaa2 in ntlmssp_update () from /usr/sbin/smbd
> No symbol table info available.
> #12 0x00b427eb in auth_ntlmssp_update () from /usr/sbin/smbd
> No symbol table info available.
> #13 0x0095d4a9 in reply_sesssetup_and_X () from /usr/sbin/smbd
> No symbol table info available.
> #14 0x0098b0d0 in open_was_deferred () from /usr/sbin/smbd
> No symbol table info available.
> #15 0x0098c20b in smbd_process () from /usr/sbin/smbd
> No symbol table info available.
> #16 0x00ba6110 in main () from /usr/sbin/smbd
> No symbol table info available.
> 
> Clearly I don't have a package that was compiled with symbols.  Is it
> easy to rebuild the FC5 rpms from samba.org with debug symbols?
> 
> Thanks!
> 
> Nolan
> 
> 
> 
> 

Any further hints on the issue I am experiencing?

Thanks!

Nolan

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