[Pkg-samba-maint] Bug#484235: Panic or segfault in Samba

[Jim Barber]

Just a quick update.

The panics are still not fixed for winbind 3.3.3-1
So I'm eagerly awaiting the release of version 3.3.4.

The log file reports:

	[2009/04/29 05:26:11,  4] winbindd/winbindd_dual.c:fork_domain_child(1439)
	  child daemon request 17
	[2009/04/29 05:26:11,  3] winbindd/winbindd_ads.c:query_user_list(168)
	  ads: query_user_list
	winbindd: error.c:272: ldap_parse_result: Assertion `r != ((void *)0)' failed.
	[2009/04/29 05:26:14,  0] lib/fault.c:fault_report(40)
	  ===============================================================
	[2009/04/29 05:26:14,  0] lib/fault.c:fault_report(41)
	  INTERNAL ERROR: Signal 6 in pid 20787 (3.3.3)
	  Please read the Trouble-Shooting section of the Samba3-HOWTO
	[2009/04/29 05:26:14,  0] lib/fault.c:fault_report(43)

	  From: http://www.samba.org/samba/docs/Samba3-HOWTO.pdf
	[2009/04/29 05:26:14,  0] lib/fault.c:fault_report(44)
	  ===============================================================
	[2009/04/29 05:26:14,  0] lib/util.c:smb_panic(1673)
	  PANIC (pid 20787): internal error
	[2009/04/29 05:26:14,  0] lib/util.c:log_stack_trace(1777)
	  BACKTRACE: 25 stack frames:
	   #0 /usr/sbin/winbindd(log_stack_trace+0x2d) [0x81421e4]
	   #1 /usr/sbin/winbindd(smb_panic+0x80) [0x8142341]
	   #2 /usr/sbin/winbindd [0x812f5ee]
	   #3 [0xb7f82420]
	   #4 /lib/libc.so.6(abort+0x188) [0xb7caafd8]
	   #5 /lib/libc.so.6(__assert_fail+0xf0) [0xb7ca2840]
	   #6 /usr/lib/libldap_r-2.4.so.2 [0xb7df36de]
	   #7 /usr/sbin/winbindd [0x834d420]
	   #8 /usr/sbin/winbindd(ads_do_search_all_args+0xee) [0x834d84c]
	   #9 /usr/sbin/winbindd [0x83535ee]
	   #10 /usr/sbin/winbindd(ads_do_search_retry+0x3e) [0x83541c9]
	   #11 /usr/sbin/winbindd(ads_search_retry+0x4d) [0x8354281]
	   #12 /usr/sbin/winbindd [0x80c7d93]
	   #13 /usr/sbin/winbindd [0x80aedc3]
	   #14 /usr/sbin/winbindd(winbindd_dual_list_users+0x89) [0x80cf2f3]
	   #15 /usr/sbin/winbindd [0x80cbd2f]
	   #16 /usr/sbin/winbindd [0x80ccbcd]
	   #17 /usr/sbin/winbindd(async_request+0x208) [0x80cd58c]
	   #18 /usr/sbin/winbindd(init_child_connection+0x294) [0x80a59ad]
	   #19 /usr/sbin/winbindd(async_domain_request+0x123) [0x80cd7f3]
	   #20 /usr/sbin/winbindd [0x80a5bf1]
	   #21 /usr/sbin/winbindd(rescan_trusted_domains+0x52) [0x80a6048]
	   #22 /usr/sbin/winbindd(main+0xc65) [0x809b434]
	   #23 /lib/libc.so.6(__libc_start_main+0xe5) [0xb7c95775]
	   #24 /usr/sbin/winbindd [0x8098f71]
	[2009/04/29 05:26:14,  0] lib/util.c:smb_panic(1678)
	  smb_panic(): calling panic action [/usr/share/samba/panic-action 20787]
	Failed to read a valid object file image from memory.
	[2009/04/29 05:26:15,  0] lib/util.c:smb_panic(1686)
	  smb_panic(): action returned status 0
	[2009/04/29 05:26:15,  0] lib/fault.c:dump_core(231)
	  dumping core in /var/log/samba/cores/winbindd

And the email sent shows the following

root wrote:
The Samba 'panic action' script, /usr/share/samba/panic-action,
was called for PID 20787 (/usr/sbin/winbindd).

This means there was a problem with the program, such as a segfault.
Below is a backtrace for this process generated with gdb, which shows
the state of the program at the time the error occurred.  The Samba log
files may contain additional information about the problem.

If the problem persists, you are encouraged to first install the
samba-dbg package, which contains the debugging symbols for the Samba
binaries.  Then submit the provided information as a bug report to
Debian.  For information about the procedure for submitting bug reports,
please see http://www.debian.org/Bugs/Reporting or the reportbug(1)
manual page.

(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0xb7b046e0 (LWP 20787)]
0xb7d16e0e in waitpid () from /lib/libc.so.6
#0  0xb7d16e0e in waitpid () from /lib/libc.so.6
#1  0xb7cb6dfb in ?? () from /lib/libc.so.6
#2  0x081423b9 in smb_panic ()
#3  0x0812f5ee in ?? ()
#4  0x08417b3b in ?? ()
#5  0x00000000 in ?? ()
The program is running.  Quit anyway (and detach it)? (y or n) [answered Y; input not from terminal]

Regards,

----------
Jim Barber
DDI Health