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--- tutorials:troubleshooting:memory [2015/05/14 13:43]
miconda [Troubleshooting]
+++ tutorials:troubleshooting:memory [2015/09/04 00:47]
miconda [Memory Manager Debugging]
@@ Line 113: / Line 113: @@
     * for SHM memory:
 <code>
-kamcmd cfg.set_now_int core mem_dump_shm
+kamcmd cfg.set_now_int core mem_dump_shm 1
 </code>
@@ Line 135: / Line 135: @@
 For PKG is similar format, just SHM replaced with PKG in messages.
+To generate summary report, do:
+<code>
+# first set memlog lower than debug
+kamcmd cfg.set_now_int core memlog 1
+kamcmd corex.shm_summary
+</code>
+The log for f_malloc with debug enabled should look like:
+<code>
+(4082) NOTICE: fm_status: summarizing all alloc'ed. fragments:
+(4082) NOTICE: fm_status:  count=     1 size=     16640 bytes from <core>: counters.c: counters_prefork_init(207)
+(4082) NOTICE: fm_status:  count=     1 size=     14560 bytes from debugger: debugger_api.c: dbg_init_pid_list(572)
+(4082) NOTICE: fm_status:  count=     1 size=      4992 bytes from sl: sl_stats.c: init_sl_stats_child(125)
+(4082) NOTICE: fm_status:  count=     1 size=       256 bytes from tmx: tmx_pretran.c: tmx_init_pretran_table(90)
+(4082) NOTICE: fm_status:  count=     1 size=      6656 bytes from tm: t_stats.c: init_tm_stats_child(60)
+(4082) NOTICE: fm_status:  count=     1 size=      1248 bytes from kex: pkg_stats.c: pkg_proc_stats_init(79)
+(4082) NOTICE: fm_status:  count=     2 size=        64 bytes from <core>: cfg/cfg_struct.c: cfg_clone_str(130)
+(4082) NOTICE: fm_status:  count=     1 size=       704 bytes from <core>: cfg/cfg_struct.c: cfg_shmize(217)
+(4082) NOTICE: fm_status:  count=     3 size=        64 bytes from usrloc: udomain.c: build_stat_name(51)
+</code>
 ===== Using GDB =====
@@ Line 189: / Line 213: @@
 gdb --batch --command=/tmp/kamailio-dump-used-pkg.gdb /usr/sbin/kamailio 21907
 </code>
+===== PKG With System Malloc =====
+Kamailio can be compiled to use system malloc and free for PKG needs. You have to remove the PKG_MALLOC define from Makefile.defs and can add DBG_SYS_MALLOC to get more verbosity with memory operations in debug mode.
+Next is a diff showing the changes in Makefile.defs, but note that lines may vary on your specific Kamailio version.
+<code c>
+diff --git a/Makefile.defs b/Makefile.defs
+index 3890668..12ca37a 100644
+--- a/Makefile.defs
++++ b/Makefile.defs
+@@ -621,7 +621,7 @@ C_DEFS= $(extra_defs) \
+         -DSER_VER=$(SER_VER) \
+         -DCFG_DIR='"$(cfg_target)"'\
+         -DRUN_DIR='"$(run_target)"'\
+-        -DPKG_MALLOC \
++        -DDBG_SYS_MALLOC \
+         -DSHM_MEM  -DSHM_MMAP \
+         -DDNS_IP_HACK \
+         -DUSE_MCAST \
+</code>
+After updating Makefile.defs recompile and reinstall.
+Other tools available out there (e.g., valgrind) can be then used to track the PKG memory operations done by Kamailio.
 ===== OS Memory Reports =====

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