Kamailio is generating a abort at qm_debug_frag function (BUG: qm_*: prev. fragm. tail overwritten) but I can't understanding the meaning this abort... Someone can tell me the purpose of qm_debug_frag function, it checks if some improper memory handling happened and abort the program?

Below is backtrace of abort:

#0 0x00f41402 in __kernel_vsyscall ()
#1 0x009fec10 in raise () from /lib/libc.so.6
#2 0x00a00521 in abort () from /lib/libc.so.6
#3 0x081797b7 in qm_debug_frag (qm=0xb5f83000, f=<value optimized out>) at mem/q_malloc.c:158
#4 0x0817a6f3 in qm_free (qm=0xb5f83000, p=0xb6109a54, file=0x43760e "perms_db: src_ip.c", func=0x4378a0 "list_destroy", line=79)
at mem/q_malloc.c:442
#5 0x0043563c in list_destroy (liste=0xb6107274) at src_ip.c:79
#6 0x00430a93 in reload_srcip_table () at db.c:163
#7 0x004313be in perms_db_srcip_reload (cmd_tree=0x835aeac, param=0x0) at fifo.c:107
#8 0x00335d97 in mi_fifo_server (fifo_stream=0x99561d8) at ../../lib/kmi/mi.h:77
#9 0x00337621 in fifo_process (rank=1) at mi_fifo.c:235
#10 0x003378a5 in mi_child_init (rank=0) at mi_fifo.c:199
#11 0x08120a02 in init_mod_child (m=0x82f4b88, rank=0) at sr_module.c:829
#12 0x081209dc in init_mod_child (m=0x82f4d1c, rank=0) at sr_module.c:826
#13 0x081209dc in init_mod_child (m=0x82f5164, rank=0) at sr_module.c:826
#14 0x081209dc in init_mod_child (m=0x82f79f4, rank=0) at sr_module.c:826
#15 0x081209dc in init_mod_child (m=0x82f7cf0, rank=0) at sr_module.c:826
#16 0x081209dc in init_mod_child (m=0x82f8174, rank=0) at sr_module.c:826
#17 0x081209dc in init_mod_child (m=0x82f8798, rank=0) at sr_module.c:826
#18 0x081209dc in init_mod_child (m=0x82f8b54, rank=0) at sr_module.c:826
#19 0x081209dc in init_mod_child (m=0x82f8eb4, rank=0) at sr_module.c:826
#20 0x081209dc in init_mod_child (m=0x82f90b4, rank=0) at sr_module.c:826
#21 0x081209dc in init_mod_child (m=0x82f952c, rank=0) at sr_module.c:826
#22 0x081209dc in init_mod_child (m=0x82fa980, rank=0) at sr_module.c:826
#23 0x081209dc in init_mod_child (m=0x82fab9c, rank=0) at sr_module.c:826
#24 0x081209dc in init_mod_child (m=0x82faff8, rank=0) at sr_module.c:826
#25 0x080ae175 in main_loop () at main.c:1624
#26 0x080b1256 in main (argc=3, argv=0xbf9a8f14) at main.c:2398

Best Regards