[SR-Users] Keep-Alive in dialog "freeing a free fragment"

Hi, (Kamailio 4.2.3) Working to get dialogs closed and cleaned up nicely I'm looking into the ka_interval and ka_timer parameter of the dialog module. The following is now happening. Scenario: 1. Call gets setup 2. Callee's internet connection drops 3. Call gets terminated (nicely) due to ka_timer/ka_interval 4. Log fills with "freeing a free fragment" after about 10 seconds Digging into this I saw that the dialog is being closed and cleaned properly in step 3. But it fails to remove/clean the timers used for the keep-alive. That's what triggers step 4, which in turn tries to clean the (or some of the) dialog space again. Is this expected behaviour when using the keep-alive options, or am I running into somekind of (known) bug? Thanks in advance for any help. -- Cheers, Dirk Teurlings