[Pkg-samba-maint] Bug#517824: winbind crash

[Steve Langasek]

On Mon, Mar 02, 2009 at 12:04:00PM +0100, hybris0 at gmail.com wrote:
> After upgrading from etch to lenny windbind crashes regularly almost once a
> day.  When it crashes it usually triggers two panic actions separated by
> several minutes. This is happening on a machine that acts a as a file
> server and that uses windows credentials taken from a Windows Server 2003
> (called srvmexal below) to limit user access on the shares.

> *** crash log 1, happened at 05:39 ******************************

> [Thread debugging using libthread_db enabled]
> [New Thread 0xb7adb6d0 (LWP 19428)]
> 0xb7f65424 in __kernel_vsyscall ()
> #0  0xb7f65424 in __kernel_vsyscall ()
> #1  0xb7ce36f3 in waitpid () from /lib/i686/cmov/libc.so.6
> #2  0xb7c8146b in ?? () from /lib/i686/cmov/libc.so.6
> #3  0x0812b439 in smb_panic ()
> #4  0x08118bf3 in sig_fault ()
> #5  <signal handler called>
> #6  0xb7f65424 in __kernel_vsyscall ()
> #7  0xb7c73640 in raise () from /lib/i686/cmov/libc.so.6
> #8  0xb7c75018 in abort () from /lib/i686/cmov/libc.so.6
> #9  0xb7c6c5be in __assert_fail () from /lib/i686/cmov/libc.so.6
> #10 0xb7dd26de in ldap_parse_result () from /usr/lib/libldap_r-2.4.so.2
> #11 0x0826e154 in ads_do_paged_search_args ()
> #12 0x0826e4fc in ads_do_search_all_args ()
> #13 0x08273d8e in ads_do_search_retry_internal ()
> #14 0x08274969 in ads_do_search_retry ()
> #15 0x0826a5a1 in ads_USN ()
> #16 0x080b4e64 in sequence_number ()
> #17 0x0809d287 in refresh_sequence_number ()
> #18 0x0809d473 in wcache_fetch ()
> #19 0x0809e774 in lookup_useraliases ()
> #20 0x080bdd7f in winbindd_dual_getsidaliases ()
> #21 0x080bb73f in fork_domain_child ()
> #22 0x080bb90d in schedule_async_request ()
> #23 0x080bcbd7 in async_request ()
> #24 0x0809753d in init_child_connection ()
> #25 0x080bce3e in async_domain_request ()
> #26 0x08097781 in add_trusted_domains ()
> #27 0x08097b3b in rescan_trusted_domains ()
> #28 0x0808dd14 in main ()

This is the same as bug #484235, which we unfortunately haven't had any luck
debugging.

> *** crash log 2, happened at 05:44 **********************************
> 
> [Thread debugging using libthread_db enabled]
> [New Thread 0xb7adb6d0 (LWP 19425)]
> 0xb7f65424 in __kernel_vsyscall ()
> #0  0xb7f65424 in __kernel_vsyscall ()
> #1  0xb7ce36f3 in waitpid () from /lib/i686/cmov/libc.so.6
> #2  0xb7c8146b in ?? () from /lib/i686/cmov/libc.so.6
> #3  0x0812b439 in smb_panic ()
> #4  0x08118bf3 in sig_fault ()
> #5  <signal handler called>
> #6  0xb7f65424 in __kernel_vsyscall ()
> #7  0xb7c73640 in raise () from /lib/i686/cmov/libc.so.6
> #8  0xb7c75018 in abort () from /lib/i686/cmov/libc.so.6
> #9  0xb7dad795 in talloc_get_name () from /usr/lib/libtalloc.so.1
> #10 0xb7dad7d6 in talloc_check_name () from /usr/lib/libtalloc.so.1
> #11 0x0812b531 in talloc_check_name_abort ()
> #12 0x080bc8ce in async_request_timeout_handler ()
> #13 0x0813ba29 in run_events ()
> #14 0x0808dd0f in main ()

This appears unrelated.  You may get a more meaningful backtrace if you
install the samba-dbg package.

-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek at ubuntu.com                                     vorlon at debian.org