[Freeswitch-users] Possible memory leak - need a second opinion

Brian West brian at freeswitch.org
Tue Jul 21 06:55:15 PDT 2009


If you're gonna open a jira we'll need a sipp scenario file that will  
reproduce the issue along with sip traces that can show what is going  
on.

/b

On Jul 21, 2009, at 8:29 AM, Apostolos Pantsiopoulos wrote:

> Since nobody replied I am posting it to JIRA.
>
> Apostolos Pantsiopoulos wrote:
>> Hi I noticed that after a day of relatively moderate traffic (about  
>> 400
>> simultaneous channels average) the memory used by FS reached 1.3 GB  
>> of
>> RAM. I tried to trace the leak (if any) with valgrind and got that :
>>
>> ==18894== 572 bytes in 1 blocks are definitely lost in loss record  
>> 148
>> of 193
>> ==18894==    at 0x40053C0: malloc (vg_replace_malloc.c:149)
>> ==18894==    by 0x7AFDE93: sofia_glue_do_invite (sofia_glue.c:1599)
>> ==18894==    by 0x7ACB191: sofia_on_init (mod_sofia.c:102)
>> ==18894==    by 0x405B124: switch_core_session_run
>> (switch_core_state_machine.c:480)
>> ==18894==    by 0x4058204: switch_core_session_thread
>> (switch_core_session.c:1064)
>> ==18894==    by 0x40CD6C5: dummy_worker (thread.c:138)
>> ==18894==    by 0xB5346A: start_thread (in /lib/libpthread-2.5.so)
>> ==18894==    by 0xAAADBD: clone (in /lib/libc-2.5.so)
>>
>>
>> So, I assummed that this happens for every call. I tried testing it
>> again by placing two calls before shutting down FS, but it only  
>> came up
>> once. I wanted to get a second opinion before posting this to JIRA  
>> as an
>> issue.
>>
>> I used revision 14269 of the SVN. I am attaching the valgrind  
>> output as
>> well.
>>
>> I also noticed that only one of my CPU cores gets really busy when
>> dealing with moderate traffic. From what I read in the mailing list
>> users are encouraged to use 64bit multi core servers for FS because  
>> it
>> scales up better. But this is not what I am seeing in practice. Could
>> the single threaded architecture of libsofia be the cause of that  
>> behavior?
>>
>>
>>
>>
>> ------------------------------------------------------------------------
>>
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>
>
> -- 
> -------------------------------------------
> Apostolos Pantsiopoulos
> Kinetix Tele.com R & D
> email: regs at kinetix.gr
> -------------------------------------------
>
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