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You changed the source code, so send the diff, not the entire files,
in order to be easier to see what code you wrote.<br>
<br>
Anyhow, the log messages say there is a buffer overflow -- you wrote
more into the buffer than the buffer size.<br>
<br>
Cheers,<br>
Danie<br>
<br>
<div class="moz-cite-prefix">On 01/10/15 20:04, jery john wrote:<br>
</div>
<blockquote
cite="mid:CAKs5Ka-dvz9AAHnenO_1797qZReGJOHnZDjjCBfXc+_2kS5Kxw@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>
<div>11(12454) : <core> [mem/q_malloc.c:149]:
qm_debug_frag(): BUG: qm_*: fragm. 0x7f9e8fcb2448 (address
0x7f9e8fcb2478) end overwritten(c0c0c000, abcdefed)!<br>
13(12456) CRITICAL: <core> [pass_fd.c:293]:
receive_fd(): EOF on 20<br>
0(12443) ALERT: <core> [main.c:784]: handle_sigs():
child process 12454 exited by a signal 6<br>
0(12443) ALERT: <core> [main.c:787]: handle_sigs():
core was generated<br>
0(12443) INFO: <core> [main.c:799]: handle_sigs():
terminating due to SIGCHLD<br>
13(12456) INFO: <core> [main.c:850]: sig_usr(): signal
15 received<br>
12(12455) INFO: <core> [main.c:850]: sig_usr(): signal
15 received<br>
9(12452) INFO: <core> [main.c:850]: sig_usr(): signal
15 received<br>
10(12453) INFO: <core> [main.c:850]: sig_usr(): signal
15 received<br>
8(12451) INFO: <core> [main.c:850]: sig_usr(): signal
15 received<br>
4(12447) INFO: <core> [main.c:850]: sig_usr(): signal
15 received<br>
3(12446) INFO: <core> [main.c:850]: sig_usr(): signal
15 received<br>
7(12450) INFO: <core> [main.c:850]: sig_usr(): signal
15 received<br>
6(12449) INFO: <core> [main.c:850]: sig_usr(): signal
15 received<br>
5(12448) INFO: <core> [main.c:850]: sig_usr(): signal
15 received<br>
2(12445) INFO: <core> [main.c:850]: sig_usr(): signal
15 received<br>
1(12444) INFO: <core> [main.c:850]: sig_usr(): signal
15 received<br>
0(12443) INFO: <core> [sctp_core.c:48]:
sctp_core_destroy(): SCTP API not initialized<br>
<br>
<br>
<br>
</div>
using kamailio 4.2 <br>
</div>
<div>with modified tcp_read.c and tcp_main.c files for buffer
manipulation both files attached<br>
</div>
<div><br>
</div>
gdb output<br>
<br>
Reading symbols from /usr/local/sbin/kamailio...done.<br>
<br>
warning: exec file is newer than core file.<br>
[New LWP 15502]<br>
<br>
warning: Error reading shared library list entry at
0x79e8c789480056e4<br>
<br>
warning: Error reading shared library list entry at
0x482a50b70fd8458b<br>
Core was generated by `/usr/local/sbin/kamailio -f
/usr/local/etc/kamailio/kamailio.cfg -P /var/run/ka'.<br>
Program terminated with signal SIGSEGV, Segmentation fault.<br>
#0 0x000000000061f73d in _shm_resize (p=0x61f729
<_shm_resize+541>, s=32767, file=0x3f <error: Cannot
access memory at address 0x3f>, func=0x0, line=-1433800800)<br>
at mem/shm_mem.c:111<br>
111 DBG("WARNING:vqm_resize: resize(0) called\n");<br>
<br>
<br>
<br>
<br>
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<div><br>
</div>
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a>
Book: SIP Routing With Kamailio - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
Kamailio Advanced Training, Sep 28-30, 2015, in Berlin - <a class="moz-txt-link-freetext" href="http://asipto.com/u/kat">http://asipto.com/u/kat</a></pre>
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