[sr-dev] kamailio core at qm_status

[Jijo]

Hi All,

I'm observing a core intermittently at "qm_status (qm=0x786cd000) at
mem/q_malloc.c:763" for kamailio version 3.1.0

looking at the backtrace this is occurring while doing a tcp buffer
overrun. Please have a look and let me know if anyone observed this issue
or how can we debug it.


Please find the backtrace and kamailio version


osbprod-V2R0:~ # /usr/sbin/kamailio -V
version: kamailio 3.1.0 (i386/linux) 21a375
flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS,
DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC,
DBG_QM_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE,
USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16,
MAX_URI_SIZE 1024, BUF_SIZE 65535, PKG_SIZE 15MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: 21a375
compiled on 12:38:44 Apr 26 2012 with gcc 4.5.0



#0  qm_status (qm=0x786cd000) at mem/q_malloc.c:763

#1  0x0819c0f3 in qm_debug_frag (qm=0x786cd000, f=<value optimized out>) at
mem/q_malloc.c:167

#2  0x0819c352 in qm_free (qm=0x786cd000, p=0x7a6cb6ac, file=0x821cce2
"<core>: tcp_main.c", func=0x822285f "wbufq_run", line=880) at
mem/q_malloc.c:457

#3  0x0815f686 in wbufq_run (tcpconn=0x7a1a7548, ev=4, fd_i=-1) at
tcp_main.c:880

#4  handle_tcpconn_ev (tcpconn=0x7a1a7548, ev=4, fd_i=-1) at tcp_main.c:4141

#5  0x08169bf2 in io_wait_loop_epoll () at io_wait.h:1092

#6  tcp_main_loop () at tcp_main.c:4606

#7  0x080b0404 in main_loop () at main.c:1655

#8  0x080b1f84 in main (argc=9, argv=0xbfb4c9f4) at main.c:2446

(gdb) l

758             LOG_(DEFAULT_FACILITY, memlog, "qm_status: ",

759                             "dumping free list stats :\n");

760             for(h=0,i=0;h<QM_HASH_SIZE;h++){

761                     unused=0;

762                     for (f=qm->free_hash[h].head.u.nxt_free,j=0;

763                                     f!=&(qm->free_hash[h].head);
f=f->u.nxt_free, i++, j++){

764                                     if (!FRAG_WAS_USED(f)){

765                                             unused++;

766     #ifdef DBG_QM_MALLOC

767                                             LOG_(DEFAULT_FACILITY,
memlog, "qm_status: ",
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