[Freeswitch-users] Advise on FS core dump
fieldpeak
fieldpeak at gmail.com
Tue Oct 25 06:57:37 MSD 2011
Hi Stephen,
i have resolved this issue, the root cause is that i define the cmd[100],
while the actual string leghth exceed this lenght (178), then caused the
core dump, now everything runs fine.
Appreciate for your kinldy help which encourging me to make it done,
Cheers!! my friend!
BR,
Charles
2011/10/25 fieldpeak <fieldpeak at gmail.com>
> Hi Stephen,
>
> Thanks for your advise, i tried it, i issued below commands, however, i did
> not find any core named files under freeswitch bin directory, and below is
> the screen showing, i could you identify the root cause, could you please
> help, thanks a lot!
>
> gdb -c core.xxx freeswitch
> ddb>run
> ...(fs running up)
> gdb>bt full
>
> freeswitch at freeswitch> 2011-10-25 10:30:44.161051 [WARNING]
> sofia_reg.c:1337 SIP auth challenge (INVITE) on sofia profile 'internal' for
> [13910936628 at 124.193.106.104] from ip 222.128.70.10
> 2011-10-25 10:30:45.081037 [NOTICE] switch_channel.c:897 New Channel
> sofia/internal/13580358068 at 124.193.106.104[38946a57-c673-4705-8433-36f4b066d01c]
> [New Thread 0xb71d6b90 (LWP 19991)]
> is_b is: 0
> excute external cmd: check_billing_before_answer 13580358068 13910936628
> 38946a57-c673-4705-8433-36f4b066d01c 9 222.128.70.10
> 2011-10-25 10:30:45.081037 [INFO] mod_nibblebill.c:1017
> check_billing_before_routing, in_username: 13580358068, in_calledstation:
> 13910936628, in_uniqueid: 38946a57-c673-4705-8433-36f4b066d01c in_type: 9,
> in_network_addr: 222.128.70.10
> Detaching after fork from child process 19992.
>
> the result of excuting external cmd:
> the result of excuting external cmd: 60
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0xb71d6b90 (LWP 19991)]
> 0x008ff698 in switch_core_get_state_handler at plt () from
> /usr/local/freeswitch/lib/libfreeswitch.so.1
> (gdb) bt full
> #0 0x008ff698 in switch_core_get_state_handler at plt ()
> from /usr/local/freeswitch/lib/libfreeswitch.so.1
> No symbol table info available.
> #1 0x0092d558 in switch_core_session_run (session=0x81bc238) at
> src/switch_core_state_machine.c:373
> global_proceed = 1
> proceed = <value optimized out>
> ptr = <value optimized out>
> rstatus = <value optimized out>
> state = <value optimized out>
> endstate = <value optimized out>
> endpoint_interface = <value optimized out>
> driver_state_handler = 0xcb8420
> application_state_handler = <value optimized out>
> new_loops = 60000
> __PRETTY_FUNCTION__ = "switch_core_session_run"
> __func__ = "switch_core_session_run"
> #2 0x009275ca in switch_core_session_thread (thread=0x823fdd8,
> obj=0x81bc238)
> at src/switch_core_session.c:1309
> session = 0x81bc238
> event = <value optimized out>
> event_str = 0x0
> val = <value optimized out>
> __func__ = "switch_core_session_thread"
> __PRETTY_FUNCTION__ = "switch_core_session_thread"
> #3 0x009c2d16 in dummy_worker (opaque=0x823fdd8) at
> threadproc/unix/thread.c:138
> ---Type <return> to continue, or q <return> to quit---
> No locals.
> #4 0x002af832 in start_thread () from /lib/libpthread.so.0
> No symbol table info available.
> #5 0x0078145e in clone () from /lib/libc.so.6
> No symbol table info available.
> (gdb)
>
> 2011/10/24 Stephen Wilde <wstephen80 at gmail.com>
>
>> You can issue a:
>>
>> gdb -c core.xxx freeswitch
>>
>> in freeswitch bin directory where core.xxx is the name of the generated
>> core dump then, in gdb:
>>
>> bt full
>>
>> to show the stack backtrace
>>
>> On Mon, Oct 24, 2011 at 11:53 AM, fieldpeak <fieldpeak at gmail.com> wrote:
>>
>>> Hi Stephen,
>>>
>>> Thanks for your kindly help, however, i changed it as your advise, the
>>> core still dumped.
>>>
>>> below is the updated code,
>>>
>>>
>>> static switch_status_t check_billing_before_routing(switch_core_session_t
>>> *session)
>>> {
>>> //charles, check billing before routing the call
>>>
>>> char buf[128];
>>> char cmd[100];
>>>
>>> FILE *pp = NULL;
>>>
>>> const char* in_username = NULL;
>>> const char* in_calledstation = NULL;
>>> const char* in_uniqueid = NULL;
>>> const char* in_network_addr = NULL;
>>> const char* in_type = "9";
>>> int is_b;
>>>
>>> //const char* full_cmd;
>>> int i_continue = 1;
>>> switch_channel_t *channel = NULL;
>>>
>>>
>>> in_uniqueid = switch_core_session_get_uuid(session);
>>>
>>> channel = switch_core_session_get_channel(session);
>>>
>>> /*only billing on a leg*/
>>> is_b = channel &&
>>> switch_channel_get_originator_caller_profile(channel);
>>> printf("is_b is: %d\n", is_b);
>>> if(is_b)
>>> {
>>> return SWITCH_STATUS_SUCCESS;
>>> }
>>>
>>> /* Lock this session's data for this module while we tinker with it
>>> */
>>> if (globals.mutex) {
>>> switch_mutex_lock(globals.mutex);
>>> }
>>>
>>>
>>> in_username = switch_channel_get_variable(channel,
>>> "caller_id_number");
>>> in_calledstation = switch_channel_get_variable(channel,
>>> "destination_number");
>>> in_network_addr = switch_channel_get_variable(channel,
>>> "network_addr");
>>>
>>>
>>> /* Done checking - release lock */
>>> if (globals.mutex) {
>>> switch_mutex_unlock(globals.mutex);
>>> }
>>>
>>>
>>> switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO,
>>> "check_billing_before_routing, in_username: %s, in_calledstation: %s,
>>> in_uniqueid: %s in_type: %s, in_network_addr: %s \n", in_username,
>>> in_calledstation, in_uniqueid, in_type, in_network_addr);
>>>
>>> strcpy(cmd,"");
>>> strcat(cmd, "check_billing_before_answer");
>>>
>>> strcat(cmd, " ");
>>> strcat(cmd, in_username);
>>> strcat(cmd, " ");
>>> strcat(cmd, in_calledstation);
>>> strcat(cmd, " ");
>>> strcat(cmd, in_uniqueid);
>>> strcat(cmd, " ");
>>> strcat(cmd, in_type);
>>> strcat(cmd, " ");
>>> strcat(cmd, in_network_addr);
>>>
>>> printf("excute external cmd: ");
>>> printf(cmd);
>>> printf("\n");
>>>
>>> if( (pp = popen(cmd, "r")) == NULL )
>>> {
>>> printf("popen() error!\n");
>>> exit(1);
>>> }
>>>
>>> while(fgets(buf, sizeof buf, pp))
>>> {
>>> printf("the result of excuting external cmd: %s", buf);
>>> }
>>>
>>> if(pp)
>>> {
>>> pclose(pp);
>>> }
>>>
>>> i_continue = atoi(buf);
>>>
>>> printf("i_continue: %d", i_continue);
>>>
>>>
>>> if (!i_continue) {
>>>
>>> switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session),
>>> SWITCH_LOG_INFO, "call was not authorized to continue \n");
>>>
>>> transfer_call(session, globals.nobal_action);
>>> }
>>>
>>>
>>>
>>>
>>> return SWITCH_STATUS_SUCCESS;
>>>
>>> }
>>>
>>>
>>> 2011/10/24 Stephen Wilde <wstephen80 at gmail.com>
>>>
>>>> Can you try to change the allocation of cmd as:
>>>>
>>>> char cmd[100];
>>>>
>>>> ....
>>>>
>>>> strcat(cmd, "check_billing_before_answer ");
>>>>
>>>> strcat(cmd, in_username);
>>>>
>>>> strcat(cmd, " ");
>>>>
>>>>
>>>> ....
>>>>
>>>> On Mon, Oct 24, 2011 at 10:39 AM, fieldpeak <fieldpeak at gmail.com>wrote:
>>>>
>>>>> Hi Friends,
>>>>>
>>>>> i'm using mod_nibblebill for billing on FS, i bundled event processing
>>>>> fucntions when status change,
>>>>> e.g. /* on_routing */ check_billing_before_routing,
>>>>> and * on_hangup */ process_hangup, as below,
>>>>> however, i found if i make a call containing two-legs e.g. user 1001
>>>>> call user 1002, then the FS core dump. but if i only make one leg call, e.g.
>>>>> call 888 for IVR, then no problem occure, i found the problem within
>>>>> function "check_billing_before_routing" (because once i comment all of lines
>>>>> within this func, the core did not dump). below is the func
>>>>> "check_billing_before_routing", can anyone help advise what's wrong? how
>>>>> should i correct it, thanks.
>>>>>
>>>>> static switch_status_t
>>>>> check_billing_before_routing(switch_core_session_t *session)
>>>>> {
>>>>> //charles, check billing before routing the call
>>>>>
>>>>> char buf[128];
>>>>> char cmd[100] = "check_billing_before_answer";
>>>>> FILE *pp = NULL;
>>>>>
>>>>> const char* in_username = NULL;
>>>>> const char* in_calledstation = NULL;
>>>>> const char* in_uniqueid = NULL;
>>>>> const char* in_network_addr = NULL;
>>>>> const char* in_type = "9";
>>>>> int is_b;
>>>>>
>>>>> //const char* full_cmd;
>>>>> int i_continue = 1;
>>>>> switch_channel_t *channel = NULL;
>>>>>
>>>>>
>>>>> in_uniqueid = switch_core_session_get_uuid(session);
>>>>>
>>>>> channel = switch_core_session_get_channel(session);
>>>>>
>>>>> /*only billing on a leg*/
>>>>> is_b = channel &&
>>>>> switch_channel_get_originator_caller_profile(channel);
>>>>> printf("is_b is: %d\n", is_b);
>>>>> if(is_b)
>>>>> {
>>>>> return SWITCH_STATUS_SUCCESS;
>>>>> }
>>>>>
>>>>> /* Lock this session's data for this module while we tinker with it
>>>>> */
>>>>> if (globals.mutex) {
>>>>> switch_mutex_lock(globals.mutex);
>>>>> }
>>>>>
>>>>>
>>>>> in_username = switch_channel_get_variable(channel,
>>>>> "caller_id_number");
>>>>> in_calledstation = switch_channel_get_variable(channel,
>>>>> "destination_number");
>>>>> in_network_addr = switch_channel_get_variable(channel,
>>>>> "network_addr");
>>>>>
>>>>>
>>>>> /* Done checking - release lock */
>>>>> if (globals.mutex) {
>>>>> switch_mutex_unlock(globals.mutex);
>>>>> }
>>>>>
>>>>>
>>>>> switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO,
>>>>> "check_billing_before_routing, in_username: %s, in_calledstation: %s,
>>>>> in_uniqueid: %s in_type: %s, in_network_addr: %s \n", in_username,
>>>>> in_calledstation, in_uniqueid, in_type, in_network_addr);
>>>>>
>>>>>
>>>>> strcat(cmd, " ");
>>>>> strcat(cmd, in_username);
>>>>> strcat(cmd, " ");
>>>>> strcat(cmd, in_calledstation);
>>>>> strcat(cmd, " ");
>>>>> strcat(cmd, in_uniqueid);
>>>>> strcat(cmd, " ");
>>>>> strcat(cmd, in_type);
>>>>> strcat(cmd, " ");
>>>>> strcat(cmd, in_network_addr);
>>>>>
>>>>> printf("excute external cmd: ");
>>>>> printf(cmd);
>>>>> printf("\n");
>>>>>
>>>>> if( (pp = popen(cmd, "r")) == NULL )
>>>>> {
>>>>> printf("popen() error!\n");
>>>>> exit(1);
>>>>> }
>>>>>
>>>>> while(fgets(buf, sizeof buf, pp))
>>>>> {
>>>>> printf("the result of excuting external cmd: %s", buf);
>>>>> }
>>>>>
>>>>> if(pp)
>>>>> {
>>>>> pclose(pp);
>>>>> }
>>>>>
>>>>> i_continue = atoi(buf);
>>>>>
>>>>> printf("i_continue: %d", i_continue);
>>>>>
>>>>>
>>>>> if (!i_continue) {
>>>>>
>>>>> switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session),
>>>>> SWITCH_LOG_INFO, "call was not authorized to continue \n");
>>>>>
>>>>> transfer_call(session, globals.nobal_action);
>>>>> }
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> return SWITCH_STATUS_SUCCESS;
>>>>>
>>>>> }
>>>>>
>>>>>
>>>>> Core dump logs:
>>>>>
>>>>> freeswitch at freeswitch> 2011-10-24 16:30:26.583369 [NOTICE]
>>>>> mod_xml_rpc.c:969 Starting HTTP Port 8787, DocRoot
>>>>> [/usr/local/freeswitch/htdocs]
>>>>> 2011-10-24 16:30:29.454743 [WARNING] sofia_reg.c:1337 SIP auth
>>>>> challenge (INVITE) on sofia profile 'internal' for [
>>>>> 6628 at 224.193.106.204] from ip 223.128.70.10
>>>>> 2011-10-24 16:30:30.254710 [NOTICE] switch_channel.c:897 New Channel
>>>>> sofia/internal/8068 at 224.193.106.204[196a50b8-eaa0-4ef0-a674-18602117f5ec]
>>>>> is_b is: 0
>>>>> excute external cmd: check_billing_before_answer 8068 6628
>>>>> 196a50b8-eaa0-4ef0-a674-18602117f5ec 9 223.128.70.10
>>>>> 2011-10-24 16:30:30.254710 [INFO] mod_nibblebill.c:1017
>>>>> check_billing_before_routing, in_username: 8068, in_calledstation: 6628,
>>>>> in_uniqueid: 196a50b8-eaa0-4ef0-a674-18602117f5ec in_type: 9,
>>>>> in_network_addr: 223.128.70.10
>>>>> the result of excuting external cmd:
>>>>> the result of excuting external cmd: 60
>>>>> Segmentation fault (core dumped)
>>>>> [root at freeswitch bin]#
>>>>>
>>>>> --
>>>>> Regards,
>>>>> Charles
>>>>>
>>>>>
>>>>>
>>>>> FreeSWITCH-users mailing list
>>>>> FreeSWITCH-users at lists.freeswitch.org
>>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>>> UNSUBSCRIBE:
>>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>>> http://www.freeswitch.org
>>>>>
>>>>>
>>>>
>>>>
>>>> FreeSWITCH-users mailing list
>>>> FreeSWITCH-users at lists.freeswitch.org
>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>>> UNSUBSCRIBE:
>>>> http://lists.freeswitch.org/mailman/options/freeswitch-users
>>>> http://www.freeswitch.org
>>>>
>>>>
>>>
>>>
>>> --
>>> Regards,
>>> Charles
>>>
>>>
>>>
>>> FreeSWITCH-users mailing list
>>> FreeSWITCH-users at lists.freeswitch.org
>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>> http://www.freeswitch.org
>>>
>>>
>>
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
>>
>
>
> --
> Regards,
> Charles
>
>
--
Regards,
Charles
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