Re: [SR-Users] Problems debugging memory issues

Hi, I'm trying to investigate a possible memory leak issue in Kamailio and I'm following the instructions indicated in https://www.kamailio.org/wiki/tutorials/troubleshooting/memory <https://www.kamailio.org/wiki/tutorials/troubleshooting/memory> I'm using Kamailo 4.4 with the following kamailio internals: Print out of kamailio internals   Version: kamailio 4.4.2 (x86_64/linux) 892ad6   Default config: /apollo/env/TachyonPlatformKamailio/etc/kamailio/kamailio.cfg   Default paths to modules: /apollo/env/TachyonPlatformKamailio/lib64/kamailio/modules   Compile flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, DBG_QM_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES   MAX_RECV_BUFFER_SIZE=262144   MAX_LISTEN=16   MAX_URI_SIZE=1024   BUF_SIZE=65535   DEFAULT PKG_SIZE=8MB   DEFAULT SHM_SIZE=64MB   ADAPTIVE_WAIT_LOOPS=1024   TCP poll methods: poll, epoll_lt, epoll_et, sigio_rt, select   Source code revision ID: 892ad6   Compiled with: x86_64-unknown-linux-gnu-gcc 4.9.4   Compiled on: 23:36:48 Dec  8 2020 Thank you for flying kamailio! I have attached to one of the kamailio tcp receiver processes via GDB and I am trying to dump memory blocks from the memory manager.  However, mem_block is not in the current_context. The following is the output from my gdb session: Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html <http://gnu.org/licenses/gpl.html>> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.  Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-amazon-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/ <http://www.gnu.org/software/gdb/bugs/>>... Reading symbols from /opt/codedeploy-agent/deployment-root/95bb1634-e653-4cec-b327-99b18b9227a8/d-7AJ1XZP58/deployment-archive/sbin/kamailio...done. Attaching to program: /apollo/env/TachyonPlatformKamailio/sbin/kamailio, process 8946 ptrace: Operation not permitted. (gdb) set $i=0 (gdb) set $a = mem_block->first_frag No symbol "mem_block" in current context. (gdb) info list Undefined info command: "list".  Try "help info". (gdb) info threads No threads. Is there something I need to do before accessing the mem_block symbol?   Also do you have any other suggestions for debugging memory leaks that may not be documented? Note: i can't upgrade to the latest version of Kamailio as we have custom modules and would require considerable effort to upgrade. Thanks, Sheldon. _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users