[sr-dev] [tracker] Task opened: Websocket module leaks tcp connection buffers

sip-router bugtracker at sip-router.org
Wed Jul 17 15:31:50 CEST 2013


A new Flyspray task has been opened.  Details are below. 

User who did this - Hugh Waite (hugh.waite) 

Attached to Project - sip-router
Summary - Websocket module leaks tcp connection buffers
Task Type - Bug Report
Category - tcp
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Normal
Reported Version - Development
Due in Version - Undecided
Due Date - Undecided
Details - The websocket module uses the tcpconn_get function when it needs to lookup the tcp connection from a websocket connection structure.

The tcpconn_get function increases to reference count of the connection, and the structure, including the buffer, is not freed while this count is positive.

I have tried solve this by adding a tcpconn_put function at the end of each function that did a get, but the system is still leaking buffers.
These buffers are not visible in the tcp.dump output because the connection has been closed, but they can be seen in a memory dump (the buffer is 1MB on our system)

More information can be found at the following URL:

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