<div dir="ltr">Hey Daniel,<div><br></div><div>I am puzzled by how this could make any difference? Could you explain? Is this dependent on the compiler used and whether or not void* arithmetic is allowed? </div><div><br></div>
<div>Cheers</div><div>Jason</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Aug 22, 2014 at 1:17 PM, Daniel-Constantin Mierla <span dir="ltr"><<a href="mailto:miconda@gmail.com" target="_blank">miconda@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Hello,<br>
<br>
can you try this small patch?<br>
<br>
diff --git a/modules/pua_dialoginfo/pua_dialoginfo.c
b/modules/pua_dialoginfo/pua_dialoginfo.c<br>
index 1e88a04..0f02b2b 100644<br>
--- a/modules/pua_dialoginfo/pua_dialoginfo.c<br>
+++ b/modules/pua_dialoginfo/pua_dialoginfo.c<br>
@@ -347,7 +347,7 @@ struct str_list* get_str_list(unsigned short
avp_flags, int_str avp_name) {<br>
<br>
memset( list_current, 0, len);<br>
<br>
- list_current->s.s = (char*)( (void*) list_current
+ sizeof(struct str_list));<br>
+ list_current->s.s = (char*)list_current +
sizeof(struct str_list);<br>
list_current->s.len = avp_value.s.len;<br>
memcpy(list_current->s.s,avp_value.s.s,avp_value.s.len);<br>
<br>
It is for 4.1.<br>
<br>
I have some ongoing work to commit soon on the master branch. if you
confirm it is working fine, I will push this patch as well and
backport to 4.1.<br>
<br>
Cheers,<br>
Daniel<div><div class="h5"><br>
<br>
<div>On 22/08/14 13:03, Charles Chance
wrote:<br>
</div>
</div></div><blockquote type="cite"><div><div class="h5">
<div dir="ltr">Hi All,
<div><br>
</div>
<div>I wonder if some one could help me to diagnose a recurring
issue?</div>
<div><br>
</div>
<div>It happens at random times/intervals and under varying
load. But always, just before the time of crash, I see the
same critical error in log:</div>
<div><br>
</div>
<div><font face="courier new, monospace">CRITICAL: dialog
[dlg_hash.c:841]: log_next_state_dlg(): bogus event 6 in
state 1 for dlg 0xb0632134 [1367:5814] with clid '<a href="mailto:0695dd7a346188dd24e7520e6c01092c@sip.sipcentric.com" target="_blank">0695dd7a346188dd24e7520e6c01092c@sip.sipcentric.com</a>'
and tags 'as77c89620' ''<br>
</font></div>
<div><br>
</div>
<div><br>
</div>
<div>Analysing the core dump reveals:</div>
<div><br>
</div>
<div>
<div><font face="courier new, monospace">Core was generated by
`/usr/sbin/kamailio -P /var/run/kamailio.pid -m 128 -M 4
-u kamailio -g kamailio'.</font></div>
<div><font face="courier new, monospace">Program terminated
with signal 11, Segmentation fault.</font></div>
<div><font face="courier new, monospace">#0 0x081a737c in
parse_uri (buf=0x3a70006e <Address 0x3a70006e out of
bounds>, len=275, uri=0xbfa2fd2c) at
parser/parse_uri.c:389</font></div>
<div><font face="courier new, monospace">389<span style="white-space:pre-wrap"> </span>scheme=buf[0]+(buf[1]<<8)+(buf[2]<<16)+(buf[3]<<24);</font></div>
</div>
<div><br>
</div>
<div><font face="courier new, monospace">(gdb) frame 1</font></div>
<div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">#1 0x008fe5dd in
dialog_publish (state=0x903f37 "Trying", ruri=0xb0b5fd00,
entity=0xb0632188, peer=0xb0632190, callid=0xb0632180,
initiator=1, lifetime=7200, localtag=0x0, remotetag=0x0,
localtarget=0x0, </font></div>
<div><font face="courier new, monospace"> remotetarget=0x0,
do_pubruri_localcheck=1) at dialog_publish.c:275</font></div>
<div><font face="courier new, monospace">275<span style="white-space:pre-wrap"> </span>if
(parse_uri(ruri->s, ruri->len, &ruri_uri) <
0) {</font></div>
</div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">(gdb) p *ruri</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div>
<div>
<div><font face="courier new, monospace">$1 = {s =
0x3a70006e <Address 0x3a70006e out of bounds>, len
= 275}</font></div>
</div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">(gdb) up</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div>
<div><font face="courier new, monospace">#2 0x008ff277 in
dialog_publish_multi (state=0x903f37 "Trying",
ruris=0xb0b5fd00, entity=0xb0632188, peer=0xb0632190,
callid=0xb0632180, initiator=1, lifetime=7200,
localtag=0x0, remotetag=0x0, </font></div>
<div><font face="courier new, monospace">
localtarget=0x0, remotetarget=0x0,
do_pubruri_localcheck=1) at dialog_publish.c:387</font></div>
<div><font face="courier new, monospace">387<span style="white-space:pre-wrap"> </span>dialog_publish(state,&(ruris->s),entity,peer,callid,initiator,lifetime,localtag,remotetag,localtarget,remotetarget,do_pubruri_localcheck);</font></div>
</div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">(gdb) p *ruris</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div>
<div><font face="courier new, monospace">$2 = {s = {s =
0x3a70006e <Address 0x3a70006e out of bounds>, len
= 275}, next = 0x0}</font></div>
</div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">(gdb) up</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div>
<div><font face="courier new, monospace">#3 0x0090187a in
__dialog_created (dlg=0xb0632134, type=2,
_params=0x6db064) at pua_dialoginfo.c:470</font></div>
<div><font face="courier new, monospace">470<span style="white-space:pre-wrap"> </span>dialog_publish_multi("Trying",
dlginfo->pubruris_caller, &(dlg->from_uri),
(include_req_uri)?&(dlg->req_uri):&(dlg->to_uri),
&(dlg->callid), 1, dlginfo->lifetime, 0, 0, 0,
0, send_publish_flag==-1?1:0);</font></div>
</div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">(gdb) p
*dlginfo->pubruris_caller<br>
</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div>
<div><font face="courier new, monospace">$3 = {s = {s =
0x31590014 <Address 0x31590014 out of bounds>, len
= 275}, next = 0xb0b5fd00}</font></div>
</div>
<div><font face="courier new, monospace"><br>
</font></div>
<div>
<div><font face="courier new, monospace">(gdb) p
*dlginfo->pubruris_caller->next</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">$4 = {s = {s =
0x3a70006e <Address 0x3a70006e out of bounds>, len
= 275}, next = 0x0}</font></div>
</div>
<div><br>
</div>
<div><br>
</div>
<div>In config, for pua_dialoginfo we are enabling the option
"use_pubruri_avps" and setting "pubruri_caller_avp" and
"pubruri_callee_avp" accordingly.</div>
<div><br>
</div>
<div>Therefore, in pua_dialoginfo.c it is using get_str_list()
function to set dlginfo->pubruris_caller from the avp.</div>
<div><br>
</div>
<div>Could this be some race condition or something completely
different?</div>
<div><br>
</div>
<div>Thanks in advance,</div>
<div><br>
</div>
<div>Charles</div>
<div><br>
</div>
<div><br>
</div>
</div>
</div>
<br>
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<pre cols="72">--
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