Hi Henning,
  This is the coredump for the crash described:

#0  0xb7dcd7c6 in raise () from /lib/libc.so.6
#1  0xb7dcf0e1 in abort () from /lib/libc.so.6
#2  0xb7e04edb in __fsetlocking () from /lib/libc.so.6
#3  0xb7e0ce15 in malloc_set_state () from /lib/libc.so.6
#4  0xb7e108e0 in free () from /lib/libc.so.6
#5  0xb7c4ce71 in Perl_safesysfree () from /usr/lib/libperl.so.5.8
#6  0xb5931f2e in odbc_st_destroy () from
/usr/local/lib/perl/5.8.8/auto/DBD/ODBC/ODBC.so
#7  0xb59271fa in XS_DBD__ODBC__st_DESTROY () from
/usr/local/lib/perl/5.8.8/auto/DBD/ODBC/ODBC.so
#8  0xb5a30ac4 in XS_DBI_dispatch () from /usr/lib/perl5/auto/DBI/DBI.so
#9  0xb7c5c81b in Perl_pp_entersub () from /usr/lib/libperl.so.5.8
#10 0xb7bfcb91 in Perl_magicname () from /usr/lib/libperl.so.5.8
#11 0xb7bfd844 in Perl_call_sv () from /usr/lib/libperl.so.5.8
#12 0xb7c69627 in Perl_sv_clear () from /usr/lib/libperl.so.5.8
#13 0xb7c69e93 in Perl_sv_free () from /usr/lib/libperl.so.5.8
#14 0xb7c69951 in Perl_sv_clear () from /usr/lib/libperl.so.5.8
#15 0xb7c69e93 in Perl_sv_free () from /usr/lib/libperl.so.5.8
#16 0xb7c4e5bc in Perl_mg_free () from /usr/lib/libperl.so.5.8
#17 0xb7c69834 in Perl_sv_clear () from /usr/lib/libperl.so.5.8
#18 0xb7c69e93 in Perl_sv_free () from /usr/lib/libperl.so.5.8
#19 0xb7c69faf in Perl_sv_unref_flags () from /usr/lib/libperl.so.5.8
#20 0xb7c68ce6 in Perl_sv_force_normal_flags () from
/usr/lib/libperl.so.5.8
#21 0xb7c8b336 in Perl_leave_scope () from /usr/lib/libperl.so.5.8
#22 0xb7c8b413 in Perl_pop_scope () from /usr/lib/libperl.so.5.8
#23 0xb7c951eb in Perl_pp_return () from /usr/lib/libperl.so.5.8
#24 0xb7c5af19 in Perl_runops_standard () from /usr/lib/libperl.so.5.8
#25 0xb7bfcb6e in Perl_magicname () from /usr/lib/libperl.so.5.8
#26 0xb7bfd844 in Perl_call_sv () from /usr/lib/libperl.so.5.8
#27 0xb7bfe445 in Perl_call_pv () from /usr/lib/libperl.so.5.8
#28 0xb7d0a2df in perl_exec2 (_msg=0xb7d8b020, fnc=0x817e490 "CSP",
mystr=0x0) at perlfunc.c:150
#29 0xb7d0a56c in perl_exec1 (_msg=0xb7d8b020, fnc=0x817e490 "CSP",
foobar=0x0) at perlfunc.c:90
#30 0x08053116 in do_action (a=0x817e518, msg=0xb7d8b020) at
action.c:883
#31 0x080553ea in run_action_list (a=0x817e518, msg=0xb7d8b020) at
action.c:131
#32 0x08091582 in eval_expr (e=0x817e570, msg=0xb7d8b020,
val=0xbfb76b88) at route.c:1058
#33 0x08054d60 in do_assign (msg=0xb7d8b020, a=0x817e598) at
action.c:198
#34 0x080527cb in do_action (a=0x817e598, msg=0xb7d8b020) at
action.c:986
#35 0x080553ea in run_action_list (a=0x817e028, msg=0xb7d8b020) at
action.c:131
#36 0x080543dd in do_action (a=0x81819a0, msg=0xb7d8b020) at
action.c:801
#37 0x080553ea in run_action_list (a=0x817d250, msg=0xb7d8b020) at
action.c:131
#38 0x08053a3b in do_action (a=0x81830e8, msg=0xb7d8b020) at
action.c:111
#39 0x080553ea in run_action_list (a=0x8182e48, msg=0xb7d8b020) at
action.c:131
#40 0x08055669 in run_top_route (a=0x8182e48, msg=0xb7d8b020) at
action.c:111
#41 0xb7d79bb6 in t_should_relay_response (Trans=0xb5c87e18,
new_code=Variable "new_code" is not available.
) at t_reply.c:601
#42 0xb7d79e4d in relay_reply (t=0xb5c87e18, p_msg=0x8188a78, branch=0,
msg_status=503, cancel_bitmap=0xbfb773a0) at t_reply.c:1035
#43 0xb7d7c30b in reply_received (p_msg=0x8188a78) at t_reply.c:1383
#44 0x080614bb in forward_reply (msg=0x8188a78) at forward.c:489
#45 0x08084124 in receive_msg (
    buf=0x8140860 "SIP/2.0 503 Service Unavailable\r\nVia: SIP/2.0/UDP
192.168.3.35:5060;branch=z9hG4bK048c.9bab482.0\r\nVia: SIP/2.0/UDP
19---Type <return> to continue, or q <return> to quit---
2.168.3.186:5060\r\nTo: <sip:[EMAIL PROTECTED]>\r\nFrom:
<sip:115083400"..., len=334, rcv_info=Variable "rcv_info" is not
available.
) at receive.c:195
#46 0x080b534a in udp_rcv_loop () at udp_server.c:465
#47 0x0807011b in main_loop () at main.c:834
#48 0x08071e65 in main (argc=3, argv=0xbfb77684) at main.c:1399

  
  Apparently the problem is somewhere in Perl?

  Thanks,
    Murilo

 

-----Original Message-----
From: Henning Westerholt [mailto:[EMAIL PROTECTED] 
Sent: segunda-feira, 24 de setembro de 2007 05:23
To: users@openser.org
Cc: Murilo Lacerda Yoshida
Subject: Re: [OpenSER-Users] perl + unixODBC

On Friday 21 September 2007, Murilo Lacerda Yoshida wrote:
>  Hello all,
>  I'm new in the list, so first of all I would like to say hi to all
the
> list and say that openSer is a fantastic product, and that the
> documentation available on the internet is also fantastic. 
> [..]

Hello Murilo,

nice to hear that. :-)

>  The other and main reason is that for some unknown reason the openSer
> server crashes when using perl scripts that communicate with DB in
high
> load contexts. For some reason the perl script receives a sig_segv
> (segmentation fault) and this signal is passed to all others threads
and
> then the openSer server dies.
>
>  This error is that kind of error that is specially difficult to find,
> because there are too many different systems involded. The path from
> openSer to the DB would be:
>
>  openSer -> perl module -> perl -> perl DBI (DBD::ODBC) -> unixODBC ->
> FreeTDS -> MS SQLServer

Yes, there are quite a bit modules involved.

Take a look into the core dump (set core_dump = yes) with gdb, this
should 
give you further informations about the cause of the segmention fault.
To get 
a better backtrace install the debug package (debian) or compile with 
debugging enabled. If the error is located in openser, please post the 
backtrace also on the list.

Cheers,

Henning


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