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User who did this - Morten Tryfoss (mtryfoss)

Attached to Project - sip-router Summary - Memory leak in tm module? Task Type - Bug Report Category - tm Status - Unconfirmed Assigned To - Operating System - Linux Severity - Medium Priority - Normal Reported Version - 4.1 Due in Version - Undecided Due Date - Undecided Details - We have got a production system with a slow but steady increase of shared memory use when routing calls.

The kamailio version is 4.1.1.

I'm able to reproduce this in a lab. The call scenario is like this: Call from asterisk using udp to kamailio, which looks up the registered user (tested both udp and tls) and forwards using t_relay(). The call is then either answered or canceled.

When I stop kamailio I get two of those lines for each call that has been routed: Aug 25 15:23:55 sip1stage /usr/sbin/kamailio[14285]: qm_status: 8372. N address=0x7fc21369f348 frag=0x7fc21369f318 size=56 used=1 Aug 25 15:23:55 sip1stage /usr/sbin/kamailio[14285]: qm_status: alloc'd from tm: t_fwd.c: prepare_new_uac(574) Aug 25 15:23:55 sip1stage /usr/sbin/kamailio[14285]: qm_status: start check=f0f0f0f0, end check= c0c0c0c0, abcdefed Aug 25 15:23:55 sip1stage /usr/sbin/kamailio[14285]: qm_status: 8373. N address=0x7fc21369f3e0 frag=0x7fc21369f3b0 size=24 used=1 Aug 25 15:23:55 sip1stage /usr/sbin/kamailio[14285]: qm_status: alloc'd from tm: t_fwd.c: prepare_new_uac(589) Aug 25 15:23:55 sip1stage /usr/sbin/kamailio[14285]: qm_status: start check=f0f0f0f0, end check= c0c0c0c0, abcdefed

When the call is initiated, two of these lines appear in the log: Aug 25 15:23:40 sip1stage /usr/sbin/kamailio[14286]: <core> [mem/q_malloc.c:369]: qm_malloc(): qm_malloc(0x7fc2132db000, 21) called from tm: t_fwd.c: prepare_new_uac(574) Aug 25 15:23:40 sip1stage /usr/sbin/kamailio[14286]: <core> [mem/q_malloc.c:415]: qm_malloc(): qm_malloc(0x7fc2132db000, 24) returns address 0x7fc21369f348 frag. 0x7fc21369f318 (size=56) on 1 -th hit Aug 25 15:23:40 sip1stage /usr/sbin/kamailio[14286]: <core> [mem/q_malloc.c:369]: qm_malloc(): qm_malloc(0x7fc2132db000, 20) called from tm: t_fwd.c: prepare_new_uac(589) Aug 25 15:23:40 sip1stage /usr/sbin/kamailio[14286]: <core> [mem/q_malloc.c:415]: qm_malloc(): qm_malloc(0x7fc2132db000, 24) returns address 0x7fc21369f3e0 frag. 0x7fc21369f3b0 (size=24) on 1 -th hit

More information can be found at the following URL: http://sip-router.org/tracker/index.php?do=details&task_id=464

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