<h3>Description</h3>
<p>Kamailio v5.2.2 rev. 9bc44f randomly crashes once a week. The problem seems to be related to TM and ASYNC modules as seen in back-trace of dump core below.</p>
<h3>Troubleshooting</h3>
<p>None. We have dump core file available for analysis.</p>
<h4>Reproduction</h4>
<p>Randomly, roughly once every 5 to 7 days.</p>
<h4>Debugging Data</h4>
<pre><code>Program terminated with signal 11, Segmentation fault.
#0 0xb4ecdb33 in faked_env (t=0x7ad779f8, msg=0x0, is_async_env=1) at t_reply.c:813
813 t_reply.c: No such file or directory.
(gdb) info locals
__FUNCTION__ = "faked_env"
(gdb) list
808 in t_reply.c
(gdb) bt full
#0 0xb4ecdb33 in faked_env (t=0x7ad779f8, msg=0x0, is_async_env=1) at t_reply.c:813
__FUNCTION__ = "faked_env"
#1 0xb4eedba2 in t_continue_helper (hash_index=48512, label=393930873, rtact=0xb5ba6184, cbname=0x0, cbparam=0x0) at t_suspend.c:337
t = 0x7ad779f8
backup_T = 0xffffffff
backup_T_branch = -1
faked_req = 0x7afdf1bc
brpl = 0x0
erpl = 0x8055fd2
faked_req_len = 3176
cancel_data = {cancel_bitmap = 3076137104, reason = {cause = 26896, u = {text = {s = 0xb51cc7e0 "\254\026\003", len = 134606304}, e2e_cancel = 0xb51cc7e0,
packed_hdrs = {s = 0xb51cc7e0 "\254\026\003", len = 134606304}}}}
branch = 0
uac = 0x7ad77b64
ret = 0
cb_type = 2
msg_status = -1256442488
last_uac_status = -1245318100
reply_status = 137942287
do_put_on_wait = 134606304
hdr = 0xb55987d8
prev = 0x0
tmp = 0x0
route_type_bk = 1
keng = 0x0
evname = {s = 0xb4f31305 "tm:continue", len = 11}
__FUNCTION__ = "t_continue_helper"
#2 0xb4ef0a2d in t_continue (hash_index=48512, label=393930873, route=0xb5ba6184) at t_suspend.c:583
No locals.
#3 0xb43ceac3 in async_exec_task (param=0x7a94bf54) at async_sleep.c:233
atp = 0x7a94bf54
keng = 0x0
cbname = {s = 0x0, len = 0}
evname = {s = 0xb43d1a94 "async:task-exec", len = 15}
__FUNCTION__ = "async_exec_task"
#4 0x080894c6 in async_task_run (idx=4) at core/async_task.c:282
ptask = 0x7a94bf4c
received = 4
__FUNCTION__ = "async_task_run"
#5 0x08087ca1 in async_task_child_init (rank=0) at core/async_task.c:185
pid = 0
i = 3
__FUNCTION__ = "async_task_child_init"
#6 0x08201d26 in init_child (rank=0) at core/sr_module.c:871
ret = 62
#7 0x0806b3d9 in main_loop () at main.c:1737
i = 4
pid = 5982
si = 0x0
si_desc = "udp receiver child=3 sock=85.118.42.43:5080\000\000\002a\267гn\267p\037\000\000\240\263n\267\364\237n\267\240\263n\267`\025\316\b\220W\371\277\315\002a\267\220\000\000\000`\025\316\b\364\237n\267\025\000\000\000\060X\371\277\355\ng\267\060/\316\b0/\316\b@q\245\265\000@\000\000@\220n\267\000\000\000"
nrprocs = 4
woneinit = 1
__FUNCTION__ = "main_loop"
#8 0x08071e84 in main (argc=13, argv=0xbff95be4) at main.c:2696
cfg_stream = 0x8bd3008
c = -1
r = 0
tmp = 0xbff96822 ""
tmp_len = -1218858976
port = 2209
proto = 1
options = 0x83779a8 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:x:X:Y:"
ret = -1
seed = 1217010649
rfd = 4
debug_save = 0
debug_flag = 0
dont_fork_cnt = 0
n_lst = 0xbff95be4
p = 0x805e474 "[\201\303\060\037@"
st = {st_dev = 14, __pad1 = 0, st_ino = 10873, st_mode = 16832, st_nlink = 2, st_uid = 0, st_gid = 0, st_rdev = 0, __pad2 = 0, st_size = 120,
st_blksize = 4096, st_blocks = 0, st_atim = {tv_sec = 1559687937, tv_nsec = 2808493}, st_mtim = {tv_sec = 1566372756, tv_nsec = 587274417}, st_ctim = {
tv_sec = 1567450779, tv_nsec = 139516276}, __unused4 = 0, __unused5 = 0}
__FUNCTION__ = "main"
</code></pre>
<h4>Log Messages</h4>
<pre><code>Sep 3 03:02:03 webrtc-as1 kernel: [7785063.653846] kamailio[5987]: segfault at 318 ip b4ecdb33 sp bff94f90 error 6 in tm.so[b4e15000+12a000]
</code></pre>
<h4>SIP Traffic</h4>
<p>Not available</p>
<h3>Possible Solutions</h3>
<p>N/A</p>
<h3>Additional Information</h3>
<ul>
<li><strong>Kamailio Version</strong> - output of <code>kamailio -v</code></li>
</ul>
<pre><code>version: kamailio 5.2.2 (i386/linux) 9bc44f
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, 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_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: 9bc44f -dirty
compiled on 11:33:22 Apr 29 2019 with gcc 4.7.2
</code></pre>
<ul>
<li><strong>Operating System</strong>:</li>
</ul>
<pre><code>Linux webrtc-as1 3.16.0-0.bpo.4-686-pae #1 SMP Debian 3.16.36-1+deb8u2~bpo70+1 (2016-10-19) i686 GNU/Linux
</code></pre>
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