On 2/29/08, Gergely Kovacs <gergo at iptel.org> wrote:
>
> Hi Benny,
>
> It is a SIP UA application for Linux based on pjsip-perf. Maybe I use some
> PJSIP schedule function wrong. I enclosed the souce.
>
> I've met two other asserts since the last post:
> ../src/pj/timer.c:329: cancel: Assertion `entry ==
> ht->heap[timer_node_slot]' failed.
> ../src/pjsip/sip_transaction.c:2792:
> tsx_on_state_completed_uac: Assertion `event->body.timer.entry ==
> &tsx->timeout_timer' failed.
>
>
> I used SIPp as UAS and I reproduced the failure with these switches:
>
> ./stx -t sip:uaa2 at domain.com -o "sip:127.0.0.1;lr" -f sip:uaa1 at domain.com
> -p 5080 -c 3000 -w 50 --call-len=15 --rnd-call-len=15 --thread-count=4
>
> A pjsip_endpt_handle_events2 was called at stx.c:1450 when the failures
> occurred.
>
Hi Gergo,
it's a bit difficult to find out what's wrong, but my guess is it's
caused by the call duration timer not being canceled when the call
gets disconnected because of incoming BYE. Perhaps you should add this
in call_on_state_changed() callback, when the call state is
PJSIP_INV_STATE_DISCONNECTED:
if (this_call->timer.id != 0) {
pjsip_endpt_cancel_timer(app.sip_endpt, &this_call->timer)
}
And in call_duration_callback():
call_data *this_call = (call_data*)inv->mod_data[0];
this_call->timer.id = 0;
cheers,
-benny
>
> Cheers:
> Gergo
>
> --
> Gergely Kovacs
> http://www.iptel.org/~gergo
>
>
>
>
> Benny Prijono wrote:
> On 2/26/08, Gergely Kovacs <gergo at iptel.org> wrote:
>
>
> Hi,
>
> I developed an User Agent application based on pjsip-perf.c. If I use it
> as UAC, with thread-count > 1 and there are approximately more than 1000
> calls waiting to be finished (at the end of client_thread() function),
> then it will segmentation fault. I use the latest SVN version of PJSIP.
>
>
> Hi Gergo,
>
> Thanks for the report. Can you tell me what you have in config_site.h,
> and the command line options to invoke pjsip-perf?
>
> cheers,
> -benny
>
>
>
>
>
> Here's the backtrace:
>
> #0 0x080cd05f in pop_freelist (ht=0x810365c) at ../src/pj/timer.c:136
> #1 0x080cd6c3 in schedule_entry (ht=0x810365c, entry=0x8630150,
> future_time=0xa7bcd1fc) at ../src/pj/timer.c:300
> #2 0x080cdb81 in pj_timer_heap_schedule (ht=0x810365c, entry=0x8630150,
> delay=0x80f1b28) at ../src/pj/timer.c:472
> #3 0x080606c6 in pjsip_endpt_schedule_timer (endpt=0x8103474,
> entry=0x8630150, delay=0x80f1b28) at ../src/pjsip/sip_endpoint.c:733
> #4 0x08072978 in tsx_on_state_null (tsx=0x8630064, event=0xa7bcd284) at
> ../src/pjsip/sip_transaction.c:2013
> #5 0x080719b8 in pjsip_tsx_send_msg (tsx=0x8630064, tdata=0x88d12fc) at
> ../src/pjsip/sip_transaction.c:1528
> #6 0x0807688b in pjsip_dlg_send_request (dlg=0x84d346c,
> tdata=0x88d12fc, mod_data_id=5, mod_data=0x87a9ffc) at
> ../src/pjsip/sip_dialog.c:1139
> #7 0x08050f5f in pjsip_inv_send_msg (inv=0x84d3a6c, tdata=0x88d12fc) at
> ../src/pjsip-ua/sip_inv.c:2078
> #8 0x0804b838 in call_duration_callback (timer_heap=0x810365c,
> entry=0x80fb9a0) at stx.c:922
> #9 0x080cdd38 in pj_timer_heap_poll (ht=0x810365c,
> next_delay=0xa7bcd3a4) at ../src/pj/timer.c:518
> #10 0x08060560 in pjsip_endpt_handle_events2 (endpt=0x8103474,
> max_timeout=0xa7bcd3e0, p_count=0xa7bcd3dc) at
> ../src/pjsip/sip_endpoint.c:665
> #11 0x0804c99d in client_thread (arg=0x0) at stx.c:1461
>
> (gdb) frame 0
> #0 0x080cd05f in pop_freelist (ht=0x810365c) at ../src/pj/timer.c:136
> 136 ht->timer_ids_freelist =
> (gdb) l
> 131
> 132 PJ_CHECK_STACK();
> 133
> 134 // The freelist values in the <timer_ids_> are negative, so
> we need
> 135 // to negate them to get the next freelist "pointer."
> 136 ht->timer_ids_freelist =
> 137 -ht->timer_ids[ht->timer_ids_freelist];
> 138
> 139 return new_id;
> 140
> (gdb) p ht->timer_ids[ht->timer_ids_freelist]
> Cannot access memory at address 0xa8c5901c
> (gdb) p ht->timer_ids_freelist
> $1 = 4325376
>
> I can reproduce it any time.
>
> Cheers:
> Gergo
>
> --
> Gergely Kovacs
> http://www.iptel.org/~gergo
>
>
>
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