[SR-Users] Memory issue
Daniel-Constantin Mierla
miconda at gmail.com
Mon May 12 20:26:14 CEST 2014
Hello,
On 12/05/14 17:29, Igor Potjevlesch wrote:
>
> Hello Daniel,
>
> Thank you for this feedback.
>
> We are running 4.0.4 without custom module.
>
> I do a sqlops request in a very small table (40 rows) but on each
> REGISTER and INVITE.
>
> The bigger table is “aliases” with 154k rows.
>
> Can you highlight me the particular bug concerned and corrected?
>
> In the meantime, for the memory allocation, I have to grow the shared
> and/or private memory? What would be the next increment : -M 128?
>
it doesn't really matter the increment. I think the private memory is
already too big, so if you don't load big amount of data, there could be
a leak.
I backported related patches to branch 4.0 -- you should upgrade to
latest git branch 4.0. In this way you are sure you have all the fixes,
because 4.0.4 is old in the 4.0 branch.
You can use 'kamcmd pkg.stats' to monitor available pkg memory. When you
see the available memory keep decreasing, you can issue:
kam cmd cfg.set_now_int core mem_dump_pkg _PID_
replace PID with an appropriate value you take from pkg.stats. You can
send the output from syslog here for investigation, to see what can be
the potential leak.
If you still have the core file, you can look inside it to see allocated
memory chunks -- see the gdb script at:
-
http://www.kamailio.org/dokuwiki/doku.php/troubleshooting:memory#walking_through_pkg_with_gdb
Cheers,
Daniel
> Regards,
>
> Igor.
>
> *De :*sr-users-bounces at lists.sip-router.org
> [mailto:sr-users-bounces at lists.sip-router.org] *De la part de*
> Daniel-Constantin Mierla
> *Envoyé :* lundi 12 mai 2014 16:43
> *À :* Kamailio (SER) - Users Mailing List
> *Objet :* Re: [SR-Users] Memory issue
>
> Hello,
>
> what version are you using? Are you doing sql queries that return
> large number of records (e.g., via sqlops)? Are you using any custom
> module you developed?
>
> The crash was fixed in master branch, but somehow forgotten to be
> backported -- it is now in branch 4.1.
>
> Cheers,
> Daniel
>
> On 12/05/14 15:58, Igor Potjevlesch wrote:
>
> Hello,
>
> I had a memory issue this morning.
>
> First, I could see the following logs in /var/log/message :
>
> May 12 11:08:21 localhost /usr/local/sbin/kamailio[30268]: ERROR:
> <core> [rvalue.c:2370]: rval_expr_eval(): rv eval int expression:
> out of memory
>
> May 12 11:08:25 localhost /usr/local/sbin/kamailio[30268]: ERROR:
> <core> [msg_translator.c:2164]: build_res_buf_from_sip_req():
> ERROR: build_res_buf_from_sip_req: out of memory ; needs 482
>
> May 12 11:08:26 localhost /usr/local/sbin/kamailio[30268]: ERROR:
> <core> [msg_translator.c:2012]: build_res_buf_from_sip_res():
> ERROR: build_res_buf_from_sip_res: out of mem
>
> May 12 11:08:27 localhost /usr/local/sbin/kamailio[30268]: ERROR:
> <core> [msg_translator.c:1910]: build_req_buf_from_sip_req():
> ERROR: build_req_buf_from_sip_req: out of memory
>
> May 12 11:08:28 localhost /usr/local/sbin/kamailio[30268]: ERROR:
> <core> [rvalue.c:2370]: rval_expr_eval(): rv eval int expression:
> out of memory
>
> May 12 11:08:31 localhost /usr/local/sbin/kamailio[30268]: ERROR:
> <core> [msg_translator.c:1910]: build_req_buf_from_sip_req():
> ERROR: build_req_buf_from_sip_req: out of memory
>
> May 12 11:08:32 localhost /usr/local/sbin/kamailio[30268]: ERROR:
> <core> [db_res.c:181]: db_allocate_rows(): no private memory left
>
> May 12 11:08:32 localhost /usr/local/sbin/kamailio[30268]: ERROR:
> db_mysql [km_res.c:175]: db_mysql_convert_rows(): could not
> allocate rows
>
> May 12 11:08:32 localhost /usr/local/sbin/kamailio[30268]: ERROR:
> db_mysql [km_res.c:217]: db_mysql_convert_result(): error while
> converting rows
>
> May 12 11:08:32 localhost /usr/local/sbin/kamailio[30268]: ERROR:
> db_mysql [km_dbase.c:191]: db_mysql_store_result(): error while
> converting result
>
> May 12 11:08:33 localhost kernel: kamailio[30268]: segfault at 30
> ip 00007ff44dd93f93 sp 00007fffcb00a200 error 4 in
> db_mysql.so[7ff44dd8f000+19000]
>
> May 12 11:08:37 localhost /usr/local/sbin/kamailio[30235]: ALERT:
> <core> [main.c:788]: handle_sigs(): child process 30268 exited by
> a signal 11
>
> May 12 11:08:37 localhost /usr/local/sbin/kamailio[30235]: ALERT:
> <core> [main.c:791]: handle_sigs(): core was generated
>
> May 12 11:08:37 localhost /usr/local/sbin/kamailio[30235]: INFO:
> <core> [main.c:803]: handle_sigs(): INFO: terminating due to SIGCHLD
>
> This problem have already occurred and I have set –M 64 to avoid
> it. It looks that it’s not enough anymore.
>
> What is the next increment recommended after 64M?
>
> On the contrary of the first occurrence, Kamailio crash with
> coredump just after these errors. I’m not sure that the memory
> message errors are linked to the crash. I have tried a “bt full”:
>
> (gdb) bt full
>
> #0 db_mysql_store_result (_h=0x7ff44e0e70e0, _r=0x7fffcb00a408) at
> km_dbase.c:198
>
> code = <value optimized out>
>
> __FUNCTION__ = "db_mysql_store_result"
>
> #1 0x00007ff44d971e72 in db_do_query_internal (_h=0x7ff44e0e70e0,
> _k=0x7fffcb00a3e0, _op=0x0, _v=0x7fffcb00a3a0, _c=<value optimized
> out>,
>
> _n=<value optimized out>, _nc=2, _o=0x0, _r=0x7fffcb00a408,
> val2str=0x7ff44dd97fa0 <db_mysql_val2str>,
>
> submit_query=0x7ff44dd92ed0 <db_mysql_submit_query>,
> store_result=0x7ff44dd93d80 <db_mysql_store_result>, _l=0) at
> db_query.c:137
>
> tmp = <value optimized out>
>
> off = <value optimized out>
>
> ret = <value optimized out>
>
> __FUNCTION__ = "db_do_query_internal"
>
> #2 0x00007ff44d97269a in db_do_query (_h=<value optimized out>,
> _k=<value optimized out>, _op=<value optimized out>,
>
> _v=<value optimized out>, _c=<value optimized out>, _n=<value
> optimized out>, _nc=2, _o=0x0, _r=0x7fffcb00a408,
>
> val2str=0x7ff44dd97fa0 <db_mysql_val2str>,
> submit_query=0x7ff44dd92ed0 <db_mysql_submit_query>,
>
> store_result=0x7ff44dd93d80 <db_mysql_store_result>) at
> db_query.c:156
>
> Thanks in advance for your help.
>
> Regards,
>
> Igor.
>
>
>
>
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>
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>
>
> --
> Daniel-Constantin Mierla -http://www.asipto.com
> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> -http://www.linkedin.com/in/miconda
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
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