<!-- Kamailio Pull Request Template --> <!-- IMPORTANT: - for detailed contributing guidelines, read: https://github.com/kamailio/kamailio/blob/master/.github/CONTRIBUTING.md - pull requests must be done to master branch, unless they are backports of fixes from master branch to a stable branch - backports to stable branches must be done with 'git cherry-pick -x ...' - code is contributed under BSD for core and main components (tm, sl, auth, tls) - code is contributed GPLv2 or a compatible license for the other components - GPL code is contributed with OpenSSL licensing exception --> #### Pre-Submission Checklist <!-- Go over all points below, and after creating the PR, tick all the checkboxes that apply --> <!-- All points should be verified, otherwise, read the CONTRIBUTING guidelines from above--> <!-- If you're unsure about any of these, don't hesitate to ask on sr-dev mailing list --> - [X] Commit message has the format required by CONTRIBUTING guide - [X] Commits are split per component (core, individual modules, libs, utils, ...) - [X] Each component has a single commit (if not, squash them into one commit) - [X] No commits to README files for modules (changes must be done to docbook files in `doc/` subfolder, the README file is autogenerated) #### Type Of Change - [X] Small bug fix (non-breaking change which fixes an issue) - [ ] New feature (non-breaking change which adds new functionality) - [ ] Breaking change (fix or feature that would change existing functionality) #### Checklist: <!-- Go over all points below, and after creating the PR, tick the checkboxes that apply --> - [ ] PR should be backported to stable branches - [ ] Tested changes locally - [ ] Related to issue #XXXX (replace XXXX with an open issue number) #### Description <!-- Describe your changes in detail --> Setup: uac_req_send() with evroute=2 and tm module enable_uac_fr=1 Noticed following shm errors while intensively testing uac_req_send(), happening quite soon after a fresh restart (e.g. 10 min): ``` kamailio[5384]: ERROR: <core> [core/mem/q_malloc.c:297]: qm_find_free(): qm_find_free(0x7fe8943bc000, 40632); Free fragment not found! kamailio[5384]: ERROR: <core> [core/mem/q_malloc.c:430]: qm_malloc(): qm_malloc(0x7fe8943bc000, 40632) called from uac: uac_send.c: uac_send_info_clone(105), module: uac; Free fragment not found! kamailio[5384]: ERROR: uac [uac_send.c:108]: uac_send_info_clone(): no more shm memory kamailio[5384]: ERROR: uac [uac_send.c:837]: uac_req_send(): cannot clone the uac structure ``` I tried monitoring system memory using `free` tool and noticed that the "used" memory didn't grow alot. However, I noticed the "buff/cached" memory had a steep growth when 200OK(s) started to come, for my setup. Noticed that, for my setup, when 200OK come, event_route[uac:reply] is not called, so the tm callback set by UAC module is not called. => the "tp" callback parameter shm allocated by UAC module is not freed. By analogy, when using uac_req_send() with evroute=1 and timeout happens (e.g. no reply comes), event_route[uac:reply] won't be called and same leak should happen => *i didn;t tested that*, was just an analogy. I updated the code to call the callback on TMCB_DESTROY, and make sure tp parameter is freed, *one time*. Let me know what you think of this... in my setup/tests I got no kamailio shm logs anymore. Also "buff/cached" memory didn't have that steep growth anymore. Thank you, Stefan You can view, comment on, or merge this pull request online at: https://github.com/kamailio/kamailio/pull/3065 -- Commit Summary -- * uac: fix shm leak -- File Changes -- M src/modules/uac/uac_send.c (14) -- Patch Links -- https://github.com/kamailio/kamailio/pull/3065.patch https://github.com/kamailio/kamailio/pull/3065.diff -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/pull/3065 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/pull/3065(a)github.com>