samba - Feb 2012 - smbd crashes repeatedly

Samba 3.6.3 on arch linux x86_64 member of an NT4 domain with winbindd
Clients' shares become temporary unavailable after unsuccessful open of 
files.
Happens after server has run for some time.
I'm unsure if some configuration error could be involved (have researched 
for some hours) or it is a bug-file candidate?
Log contains this:

Feb 29 12:11:56 localhost smbd[27433]:    #0 
/usr/sbin/smbd(log_stack_trace+0x1a) [0x7fdd196ea6aa]
Feb 29 12:11:56 localhost smbd[27433]:    #1 
/usr/sbin/smbd(smb_panic+0x25) [0x7fdd196ea785]
Feb 29 12:11:56 localhost smbd[27433]:    #2 /usr/sbin/smbd(+0x405a48) 
[0x7fdd196dba48]
Feb 29 12:11:56 localhost smbd[27433]:    #3 /lib/libc.so.6(+0x349f0) 
[0x7fdd162a69f0]
Feb 29 12:11:56 localhost smbd[27433]:    #4 
/usr/sbin/smbd(copy_serverinfo+0x1a) [0x7fdd1973f34a]
Feb 29 12:11:56 localhost smbd[27433]:    #5 
/usr/sbin/smbd(make_server_info_guest+0x10) [0x7fdd1973f530]
Feb 29 12:11:56 localhost smbd[27433]:    #6 /usr/sbin/smbd(+0x468a25) 
[0x7fdd1973ea25]
Feb 29 12:11:56 localhost smbd[27433]:    #7 /usr/sbin/smbd(+0x463282) 
[0x7fdd19739282]
Feb 29 12:11:56 localhost smbd[27433]:    #8 /usr/sbin/smbd(+0x46fed9) 
[0x7fdd19745ed9]
Feb 29 12:11:56 localhost smbd[27433]:    #9 
/usr/sbin/smbd(ntlmssp_server_auth+0x2da) [0x7fdd194b2a0a]
Feb 29 12:11:56 localhost smbd[27433]:    #10 
/usr/sbin/smbd(ntlmssp_update+0x1d2) [0x7fdd194a9842]
Feb 29 12:11:56 localhost smbd[27433]:    #11 
/usr/sbin/smbd(auth_ntlmssp_update+0x16) [0x7fdd194a9d86]
Feb 29 12:11:56 localhost smbd[27433]:    #12 
/usr/sbin/smbd(reply_sesssetup_and_X+0x1ab4) [0x7fdd1940ea44]
Feb 29 12:11:56 localhost smbd[27433]:    #13 /usr/sbin/smbd(+0x171f94) 
[0x7fdd19447f94]
Feb 29 12:11:56 localhost smbd[27433]:    #14 /usr/sbin/smbd(+0x1723ab) 
[0x7fdd194483ab]
Feb 29 12:11:56 localhost smbd[27433]:    #15 /usr/sbin/smbd(+0x1727c3) 
[0x7fdd194487c3]
Feb 29 12:11:56 localhost smbd[27433]:    #16 
/usr/sbin/smbd(run_events_poll+0x34e) [0x7fdd196fa46e]
Feb 29 12:11:56 localhost smbd[27433]:    #17 
/usr/sbin/smbd(smbd_process+0x812) [0x7fdd19449f32]
Feb 29 12:11:56 localhost smbd[27433]:    #18 /usr/sbin/smbd(+0x68788f) 
[0x7fdd1995d88f]
Feb 29 12:11:56 localhost smbd[27433]:    #19 
/usr/sbin/smbd(run_events_poll+0x34e) [0x7fdd196fa46e]
Feb 29 12:11:56 localhost smbd[27433]:    #20 /usr/sbin/smbd(+0x42460a) 
[0x7fdd196fa60a]
Feb 29 12:11:56 localhost smbd[27433]:    #21 
/usr/sbin/smbd(_tevent_loop_once+0x90) [0x7fdd196fb190]
Feb 29 12:11:56 localhost smbd[27433]:    #22 /usr/sbin/smbd(main+0xed0) 
[0x7fdd193c7fe0]
Feb 29 12:11:56 localhost smbd[27433]:    #23 
/lib/libc.so.6(__libc_start_main+0xed) [0x7fdd1629338d]
Feb 29 12:11:56 localhost smbd[27433]:    #24 /usr/sbin/smbd(+0xf24c5) 
[0x7fdd193c84c5]
Feb 29 12:11:56 localhost smbd[27433]: [2012/02/29 12:11:56.746562,  0] 
lib/fault.c:372(dump_core)
Feb 29 12:11:56 localhost smbd[27433]:   dumping core in 
/var/log/samba/cores/smbd
Feb 29 12:11:56 localhost smbd[27433]:
Feb 29 12:11:59 localhost smbd[27435]: [2012/02/29 12:11:59.832023,  0] 
lib/fault.c:47(fault_report)
Feb 29 12:11:59 localhost smbd[27435]: 
==============================================================Feb 29 12:11:59
localhost smbd[27435]: [2012/02/29 12:11:59.832129,  0]
lib/fault.c:48(fault_report)
Feb 29 12:11:59 localhost smbd[27435]:   INTERNAL ERROR: Signal 11 in pid 
27435 (3.6.3)
Feb 29 12:11:59 localhost smbd[27435]:   Please read the Trouble-Shooting 
section of the Samba3-HOWTO
Feb 29 12:11:59 localhost smbd[27435]: [2012/02/29 12:11:59.832174,  0] 
lib/fault.c:50(fault_report)
Feb 29 12:11:59 localhost smbd[27435]:
Feb 29 12:11:59 localhost smbd[27435]:   From: 
http://www.samba.org/samba/docs/Samba3-HOWTO.pdf
Feb 29 12:11:59 localhost smbd[27435]: [2012/02/29 12:11:59.832217,  0] 
lib/fault.c:51(fault_report)
Feb 29 12:11:59 localhost smbd[27435]: 
==============================================================Feb 29 12:11:59
localhost smbd[27435]: [2012/02/29 12:11:59.832248,  0]
lib/util.c:1117(smb_panic)
Feb 29 12:11:59 localhost smbd[27435]:   PANIC (pid 27435): internal error
Feb 29 12:11:59 localhost smbd[27435]: [2012/02/29 12:11:59.834508,  0] 
lib/util.c:1221(log_stack_trace)
Feb 29 12:11:59 localhost smbd[27435]:   BACKTRACE: 25 stack frames:
Feb 29 12:11:59 localhost smbd[27435]:    #0 
/usr/sbin/smbd(log_stack_trace+0x1a) [0x7fdd196ea6aa]
Feb 29 12:11:59 localhost smbd[27435]:    #1 
/usr/sbin/smbd(smb_panic+0x25) [0x7fdd196ea785]
Feb 29 12:11:59 localhost smbd[27435]:    #2 /usr/sbin/smbd(+0x405a48) 
[0x7fdd196dba48]
Feb 29 12:11:59 localhost smbd[27435]:    #3 /lib/libc.so.6(+0x349f0) 
[0x7fdd162a69f0]
Feb 29 12:11:59 localhost smbd[27435]:    #4 
/usr/sbin/smbd(copy_serverinfo+0x1a) [0x7fdd1973f34a]
Feb 29 12:11:59 localhost smbd[27435]:    #5 
/usr/sbin/smbd(make_server_info_guest+0x10) [0x7fdd1973f530]
Feb 29 12:11:59 localhost smbd[27435]:    #6 /usr/sbin/smbd(+0x468a25) 
[0x7fdd1973ea25]
Feb 29 12:11:59 localhost smbd[27435]:    #7 /usr/sbin/smbd(+0x463282) 
[0x7fdd19739282]
Feb 29 12:11:59 localhost smbd[27435]:    #8 /usr/sbin/smbd(+0x46fed9) 
[0x7fdd19745ed9]
Feb 29 12:11:59 localhost smbd[27435]:    #9 
/usr/sbin/smbd(ntlmssp_server_auth+0x2da) [0x7fdd194b2a0a]
Feb 29 12:11:59 localhost smbd[27435]:    #10 
/usr/sbin/smbd(ntlmssp_update+0x1d2) [0x7fdd194a9842]
Feb 29 12:11:59 localhost smbd[27435]:    #11 
/usr/sbin/smbd(auth_ntlmssp_update+0x16) [0x7fdd194a9d86]
Feb 29 12:11:59 localhost smbd[27435]:    #12 
/usr/sbin/smbd(reply_sesssetup_and_X+0x1ab4) [0x7fdd1940ea44]
Feb 29 12:11:59 localhost smbd[27435]:    #13 /usr/sbin/smbd(+0x171f94) 
[0x7fdd19447f94]
Feb 29 12:11:59 localhost smbd[27435]:    #14 /usr/sbin/smbd(+0x1723ab) 
[0x7fdd194483ab]
Feb 29 12:11:59 localhost smbd[27435]:    #15 /usr/sbin/smbd(+0x1727c3) 
[0x7fdd194487c3]
Feb 29 12:11:59 localhost smbd[27435]:    #16 
/usr/sbin/smbd(run_events_poll+0x34e) [0x7fdd196fa46e]
Feb 29 12:11:59 localhost smbd[27435]:    #17 
/usr/sbin/smbd(smbd_process+0x812) [0x7fdd19449f32]
Feb 29 12:11:59 localhost smbd[27435]:    #18 /usr/sbin/smbd(+0x68788f) 
[0x7fdd1995d88f]
Feb 29 12:11:59 localhost smbd[27435]:    #19 
/usr/sbin/smbd(run_events_poll+0x34e) [0x7fdd196fa46e]
Feb 29 12:11:59 localhost smbd[27435]:    #20 /usr/sbin/smbd(+0x42460a) 
[0x7fdd196fa60a]
Feb 29 12:11:59 localhost smbd[27435]:    #21 
/usr/sbin/smbd(_tevent_loop_once+0x90) [0x7fdd196fb190]
Feb 29 12:11:59 localhost smbd[27435]:    #22 /usr/sbin/smbd(main+0xed0) 
[0x7fdd193c7fe0]
Feb 29 12:11:59 localhost smbd[27435]:    #23 
/lib/libc.so.6(__libc_start_main+0xed) [0x7fdd1629338d]
Feb 29 12:11:59 localhost smbd[27435]:    #24 /usr/sbin/smbd(+0xf24c5) 
[0x7fdd193c84c5]
Feb 29 12:11:59 localhost smbd[27435]: [2012/02/29 12:11:59.834970,  0] 
lib/fault.c:372(dump_core)
Feb 29 12:11:59 localhost smbd[27435]:   dumping core in 
/var/log/samba/cores/smbd
Feb 29 12:11:59 localhost smbd[27435]:




Steen Meyer

On Wed, Feb 29, 2012 at 01:52:51PM +0100, Steen.L.Meyer at ibsen.dk
wrote:
> Samba 3.6.3 on arch linux x86_64 member of an NT4 domain with winbindd
> Clients' shares become temporary unavailable after unsuccessful open of
> files.
> Happens after server has run for some time.
> I'm unsure if some configuration error could be involved (have
researched
> for some hours) or it is a bug-file candidate?
In the [global] section of your smb.conf set :

panic action = /bin/sleep 999999

and reproduce the problem. When it crashes, attach
to the parent of the sleep process using gdb and
post a backtrace.

Jeremy.

On 02/29/2012 04:52 AM, Steen.L.Meyer at ibsen.dk wrote:
> Samba 3.6.3 on arch linux x86_64 member of an NT4 domain with winbindd
> Clients' shares become temporary unavailable after unsuccessful open of
> files.
> Happens after server has run for some time.
> I'm unsure if some configuration error could be involved (have
researched
> for some hours) or it is a bug-file candidate?
Please file a bug listing exact version information, configuration and 
ideally a level 10 log leading up to the crash.

Cheers,
Christian