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<p>Hello,</p>
<p>you have to provide the full output of gdb command from the core
file:</p>
<p>bt full</p>
<p>To see the entire execution stack that cause the crash.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div class="moz-cite-prefix">On 08.05.20 19:09, Ilie Soltanici
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAJQ6-U0sacmf4-jSNaMH=a+CDc4EU8RmzLApOQmAbLbH9cWQqw@mail.gmail.com">
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<div dir="ltr">
<div>Hello,</div>
I'm trying to replicate a hash table to another 2 nodes by using
DMQ Module. That's the related configuration:<br>
<div><br>
</div>
<div>loadmodule "tm.so"</div>
loadmodule "tmx.so"<br>
loadmodule "dialog.so"<br>
loadmodule "dmq.so"<br>
<div>loadmodule "htable.so"</div>
<div><br>
</div>
<div>modparam("dmq", "server_address",
<a class="moz-txt-link-rfc2396E" href="sip:MY_INTERNAL_IP_ADDR:5062">"sip:MY_INTERNAL_IP_ADDR:5062"</a>)</div>
modparam("dmq", "notification_address",
<a class="moz-txt-link-rfc2396E" href="sip:dmq.domain.local:5062">"sip:dmq.domain.local:5062"</a>)<br>
modparam("dmq", "multi_notify", 1)<br>
modparam("dmq", "num_workers", 4)<br>
<div>modparam("dmq", "ping_interval", 90)</div>
<div><br>
</div>
<div>modparam("htable", "enable_dmq", 1)<br>
modparam("htable", "dmq_init_sync", 1)<br>
modparam("htable", "htable",
"test=>size=10;initval=0;dmqreplicate=1;")</div>
<div><br>
</div>
<div> if(is_method("KDMQ")) {<br>
dmq_handle_message();<br>
exit;<br>
}</div>
<div><br>
</div>
<div>After starting Kamailio - everything seems to be working
fine, Kamailio is able to discover other nodes and
replications is working fine, until after a few minutes I'm
getting such errors in the Kamailio Log file:</div>
<div><br>
</div>
<div>May 8 17:14:26 kamailio kamailio[28064]: CRITICAL:
<core> [core/mem/q_malloc.c:521]: qm_free(): BUG:
freeing already freed pointer (0x7f0ac62493e0), called from
dialog: dlg_var.c: free_local_varlist(145), first free dialog:
dlg_var.c: set_dlg_variable_unsafe(205) - ignoring</div>
<div><br>
</div>
<div>Then, if I'm getting any SIP messages from any Device -
Kamailio is crashing with the following info in the log file:</div>
<div><br>
</div>
<div>May 8 16:03:19 kamailio kam[10963]: CRITICAL: {REGISTER
(1) | Seq=45534 | Source IP=192.168.1.5 (tcp) | Call
ID=Kyb-KJjf.U9ttdOwQNYu6mUWCKb2bvk7} <core>
[core/mem/q_malloc.c:150]: qm_debug_check_frag(): BUG: qm:
prev. fragm. tail overwritten(0,
0)[0x7f62cc746a10:0x7f62cc746a48]!<br>
Memory allocator was called from dialog: dlg_var.c:147.
Fragment marked by dialog: dlg_var.c:108. Exec from
core/mem/q_malloc.c:511.</div>
<div>May 8 16:03:21 kamailio kam[10966]: CRITICAL: <core>
[core/pass_fd.c:277]: receive_fd(): EOF on 59<br>
May 8 16:03:21 kamailio kam[10966]: DEBUG: <core>
[core/tcp_main.c:3825]: handle_ser_child(): dead child 37, pid
10963 (shutting down?)<br>
May 8 16:03:21 kamailio kam[10966]: DEBUG: <core>
[core/io_wait.h:599]: io_watch_del(): DBG: io_watch_del
(0xa9e1c0, 59, -1, 0x0) fd_no=48 called<br>
May 8 16:03:21 kamailio kam[10966]: DEBUG: <core>
[core/tcp_main.c:3593]: handle_tcp_child(): dead tcp child 1
(pid 10963, no 37) (shutting down?)<br>
May 8 16:03:21 kamailio kam[10966]: DEBUG: <core>
[core/io_wait.h:599]: io_watch_del(): DBG: io_watch_del
(0xa9e1c0, 62, -1, 0x0) fd_no=47 called<br>
May 8 16:03:21 kamailio kam[10919]: ALERT: <core>
[main.c:767]: handle_sigs(): child process 10963 exited by a
signal 6<br>
May 8 16:03:21 kamailio kam[10919]: ALERT: <core>
[main.c:770]: handle_sigs(): core was generated<br>
May 8 16:03:21 kamailio kam[10919]: INFO: <core>
[main.c:792]: handle_sigs(): terminating due to SIGCHLD<br>
May 8 16:03:21 kamailio kam[10919]: DEBUG: <core>
[main.c:794]: handle_sigs(): terminating due to SIGCHLD<br>
May 8 16:03:21 kamailio kam[10966]: INFO: <core>
[main.c:847]: sig_usr(): signal 15 received</div>
<div><br>
</div>
<div><br>
</div>
<div>This is what i got from the dump core file:</div>
<div><br>
</div>
<div>uri = {user = {s = 0x3 <Address 0x3 out of bounds>,
len = -264573566}, passwd = {s = 0x788 <Address 0x788 out
of bounds>, len = 8208}, host = {s = 0x393100000000
<Address 0x393100000000 out of bounds>, len =
1588950199}, port = {s = 0x2 <Address 0x2 out of
bounds>,<br>
len = 24086112}, params = {s = 0x7ffcbb1600c0
"\200", len = -261173312}, sip_params = {s = 0x7ffcbb1601a8
"\300\317n\360b\177", len = 24086112}, headers = {s = 0x0, len
= -261173312}, port_no = 424, proto = 47894, type = 32764,<br>
flags = (URI_SIP_USER_PHONE | unknown: 4031456108),
transport = {<br>
s = 0x16f88cc "16:03:19 kamailio[10963]: CRITICAL:
{REGISTER (1) | Seq=45534 | Source IP=192.168.1.5 (tcp) | Call
ID=Kyb-KJjf.U9ttdOwQNYu6mUWCKb2bvk7} <core>
[core/mem/q_malloc.c:150]: qm_debug_check_frag(): BUG: qm:
pr"..., len = -261163168}, ttl = {<br>
s = 0x8 <Address 0x8 out of bounds>, len =
-263517049}, user_param = {<br>
s = 0x16f88cc "16:03:19 kamailio[10963]: CRITICAL:
{REGISTER (1) | Seq=45534 | Source IP=192.168.1.5 (tcp) | Call
ID=Kyb-KJjf.U9ttdOwQNYu6mUWCKb2bvk7} <core>
[core/mem/q_malloc.c:150]: qm_debug_check_frag(): BUG: qm:
pr"..., len = -264350686}, maddr = {<br>
s = 0x3336393031000080 <Address
0x3336393031000080 out of bounds>, len = 8187}, method = {s
= 0x0, len = 24086112}, lr = {s = 0x820ce8 "%s: %s%s(): cseq
<%.*s>: <%.*s> <%.*s>\n", len =
-1156185384}, r2 = {s = 0xb <Address 0xb out of bounds>,
len = 21}, gr = {<br>
s = 0xffffffff <Address 0xffffffff out of
bounds>, len = -264780793}, transport_val = {s = 0x1ff4
<Address 0x1ff4 out of bounds>, len = 24086720}, ttl_val
= {s = 0x7f62f06f0760 <main_arena> "", len = 128},
user_param_val = {s = 0x16f88b0 "`\002", len = 144},<br>
maddr_val = {s = 0x15 <Address 0x15 out of
bounds>, len = -264573566}, method_val = {s = 0x788
<Address 0x788 out of bounds>, len = 8208}, lr_val = {s
= 0x0, len = 1588950199}, r2_val = {s = 0x2 <Address 0x2
out of bounds>, len = 24086112}, gr_val = {<br>
s = 0x7ffcbb1601f0 "\006", len = -261173312}}<br>
next_hop = {user = {s = 0x0, len = 0}, passwd = {s =
0x0, len = 0}, host = {s = 0x7f62f06eef20
<_nl_C_LC_NUMERIC+32> "", len = 0}, port = {s = 0x0, len
= 0}, params = {s = 0x7f620000000b <Address 0x7f620000000b
out of bounds>, len = 0}, sip_params = {<br>
s = 0x7f62f03762cd <vfprintf+19661>
"\200\275\360\372\377\377", len = 0}, headers = {s = 0x0, len
= -1}, port_no = 25293, proto = 61495, type = 32610, flags =
(URI_USER_NORMALIZE | URI_SIP_USER_PHONE), transport = {s =
0x7ffcbb160038 "\267t\265^", len = 24086112},<br>
ttl = {s = 0xffffffff <Address 0xffffffff out of
bounds>, len = 0}, user_param = {s = 0x7d62e8 "%s:
%.*s%s%s(): preparing to run routing scripts...\n", len = 11},
maddr = {s = 0xbd <Address 0xbd out of bounds>, len =
3440}, method = {s = 0x7d631c "", len = -263511186},<br>
lr = {s = 0x16f88cc "16:03:19 kamailio[10963]:
CRITICAL: {REGISTER (1) | Seq=45534 | Source IP=192.168.1.5
(tcp) | Call ID=Kyb-KJjf.U9ttdOwQNYu6mUWCKb2bvk7} <core>
[core/mem/q_malloc.c:150]: qm_debug_check_frag(): BUG: qm:
pr"..., len = -261163168}, r2 = {<br>
s = 0x8 <Address 0x8 out of bounds>, len =
-263517049}, gr = {<br>
s = 0x16f88cc "16:03:19 kamailio[10963]: CRITICAL:
{REGISTER (1) | Seq=45534 | Source IP=192.168.1.5 (tcp) | Call
ID=Kyb-KJjf.U9ttdOwQNYu6mUWCKb2bvk7} <core>
[core/mem/q_malloc.c:150]: qm_debug_check_frag(): BUG: qm:
pr"..., len = -264350686}, transport_val = {<br>
s = 0x7d62ef "s%s%s(): preparing to run routing
scripts...\n", len = 8187}, ttl_val = {s = 0x0, len =
-264345823}, user_param_val = {s = 0x3000000010 <Address
0x3000000010 out of bounds>, len = -1156184608}, maddr_val
= {<br>
s = 0x7ffcbb160520
"\341+:\213'H\027\203\341+\342ޙ>\356|", len = 21},
method_val = {s = 0x7ffcbb160250 "\023", len = -1156186080},
lr_val = {s = 0x7f62f06eef80 <_nl_C_LC_TIME>
"r\036K\360b\177", len = -1156185648}, r2_val = {s = 0x17ff710
"IST", len = -1156186048},<br>
gr_val = {s = 0x0, len = -1156186058}}<br>
u = 0x400001ff4</div>
<div><br>
</div>
<div>By disabling DMQ Module i haven't noticed any crashes or
issues like that, so i suppose that Kamailio is crashing
because of this module, but i can be wrong. I've tried with 2
versions of Kamailio (5.2.6 and 5.3.4), both of them having
the same issue.</div>
<div><br>
</div>
<div>Thanks<br>
</div>
<div><br>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
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</pre>
</blockquote>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Funding: <a class="moz-txt-link-freetext" href="https://www.paypal.me/dcmierla">https://www.paypal.me/dcmierla</a></pre>
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