If it's been like it for all this time then perhaps some other change recently has exasperated the issue, since it only became noticeable for us after upgrading to 4.3. It had been fine - or at least not noticeable - for several years prior to that, with the same setup everywhere (db mode 2).

On 18 Dec 2015 12:47 am, "Luis Azedo" <luis@2600hz.com> wrote:

Hi Charles,

i'm not entirely sure but it seems that its been like this for a long time time (2008 with little changes in 2012). i usually make use of notifier workers (db mode = 3) where this was no issue.

i received a report about the versioning, identified the code path (it was db_mode = 2 even tho the notifier_processes were 5) which was different , identified the issue and corrected it. sorry for the false start on the correction, i was fooled by travis and misread the return type which lead to crashing.

Best

From: sr-dev [sr-dev-bounces@lists.sip-router.org] on behalf of Charles Chance [charles.chance@sipcentric.com]
Sent: Thursday, December 17, 2015 4:11 PM
To: sr-dev
Subject: Re: [sr-dev] git:master:b6b7de88: presence_dialoginfo : aux_body should return xmldoc instead of char

Hi Luis,

It would be interesting to understand where the issue with document versioning was first introduced - it was working fine prior to 4.3 as far as I can tell.

We noticed some weirdness with BLF after upgrading to 4.3.4 on some production machines and soon realised it was due to the version being incorrect - however, these recent patches have only led to other issues/crashes in our offline tests today.

Can you shed any light on when it might have been introduced? I've not had much chance look myself but happy to spend some time over the weekend.

Cheers,
Charles

On 17 Dec 2015 10:09 pm, "Luis Azedo" <luis@2600hz.com> wrote:

Module: kamailio
Branch: master
Commit: b6b7de8832e4ab22ef2c00ebb2c1e1b6ced9ff35
URL: https://github.com/kamailio/kamailio/commit/b6b7de8832e4ab22ef2c00ebb2c1e1b6ced9ff35

Author: Luis Azedo <luis@2600hz.com>
Committer: Luis Azedo <luis@2600hz.com>
Date: 2015-12-17T21:02:43Z

presence_dialoginfo : aux_body should return xmldoc instead of char

---

Modified: modules/presence/notify.c
Modified: modules/presence_dialoginfo/notify_body.c

---

Diff: https://github.com/kamailio/kamailio/commit/b6b7de8832e4ab22ef2c00ebb2c1e1b6ced9ff35.diff
Patch: https://github.com/kamailio/kamailio/commit/b6b7de8832e4ab22ef2c00ebb2c1e1b6ced9ff35.patch

---

diff --git a/modules/presence/notify.c b/modules/presence/notify.c
index efb8a48..f6a0ba9 100644
--- a/modules/presence/notify.c
+++ b/modules/presence/notify.c
@@ -1535,8 +1535,7 @@ int send_notify_request(subs_t* subs, subs_t * watcher_subs,
{
aux_body = subs->event->aux_body_processing(subs, notify_body);
if(aux_body) {
- xmlFree(notify_body->s);
- pkg_free(notify_body);
+ free_notify_body(notify_body, subs->event);
notify_body = aux_body;
}
}
diff --git a/modules/presence_dialoginfo/notify_body.c b/modules/presence_dialoginfo/notify_body.c
index e6dc050..710fe91 100644
--- a/modules/presence_dialoginfo/notify_body.c
+++ b/modules/presence_dialoginfo/notify_body.c
@@ -595,5 +595,18 @@ str *dlginfo_body_setversion(subs_t *subs, str *body) {
memcpy(version_start, version, version_len);
memset(version_start + version_len, ' ', 12 - version_len);

+ xmlDocPtr doc = xmlReadMemory(aux_body->s, aux_body->len, "noname.xml", NULL, 0);
+ if (doc == NULL) {
+ LM_ERR("error allocation xmldoc\n");
+ pkg_free(aux_body->s);
+ pkg_free(aux_body);
+ return NULL;
+ }
+ pkg_free(aux_body->s);
+ xmlDocDumpFormatMemory(doc,(xmlChar**)(void*)&aux_body->s, &aux_body->len, 1);
+
+ xmlCleanupParser();
+ xmlMemoryDump();
+
return aux_body;
}

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