[sr-dev] [tracker] Comment added: zombie dialogs in state 5

[sip-router]

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The following task has a new comment added:

FS#424 - zombie dialogs in state 5
User who did this - Daniel-Constantin Mierla (miconda)

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It is impossible to ensure that dlg callbacks can be executed if added after the transaction was created. Think about the case when it takes more than a second to execute your event route, once it is finished, the transaction created by the other BYE could be in 'wait-for-delete' state, with the reply already sent out.

What I tried to do with the patch -- if the request is not creating a transaction by itself, then unref not to get dialog in zombie state. But apparently there is a 'bug' to the patch. This mechanism is used also for initial INVITE that is stateless replied from config, after a dlg_manage() - that situation created zombies in the past as well.
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More information can be found at the following URL:
http://sip-router.org/tracker/index.php?do=details&task_id=424#comment1631

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