Module: kamailio Branch: master Commit: 0546af13b8e6e8e0255e1dc4ea406956913ec288 URL: https://github.com/kamailio/kamailio/commit/0546af13b8e6e8e0255e1dc4ea40695… Author: Julien Chavanton &lt;jchavanton(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2017-01-05T16:32:31+01:00 dmq_usrloc: fix deadlock (#911) * dmq_usrloc: fix deadlock caused by acquiring the same lock twice using get_urecord_by_ruid and lock_udomain * dmq_usrloc: get_urecord_by_ruid returns with the lock if the record was found --- Modified: src/modules/dmq_usrloc/usrloc_sync.c --- Diff: https://github.com/kamailio/kamailio/commit/0546af13b8e6e8e0255e1dc4ea40695… Patch: https://github.com/kamailio/kamailio/commit/0546af13b8e6e8e0255e1dc4ea40695… --- diff --git a/src/modules/dmq_usrloc/usrloc_sync.c b/src/modules/dmq_usrloc/usrloc_sync.c index 9b966d5..5a11e82 100644 --- a/src/modules/dmq_usrloc/usrloc_sync.c +++ b/src/modules/dmq_usrloc/usrloc_sync.c @@ -62,8 +62,6 @@ static int add_contact(str aor, ucontact_info_t* ci) return -1; } - dmq_ul.lock_udomain(_d, &aor); - LM_DBG("aor: %.*s\n", aor.len, aor.s); LM_DBG("ci->ruid: %.*s\n", ci->ruid.len, ci->ruid.s); LM_DBG("aorhash: %i\n", dmq_ul.get_aorhash(&aor)); @@ -81,6 +79,8 @@ static int add_contact(str aor, ucontact_info_t* ci) return 0; } } + + dmq_ul.lock_udomain(_d, &aor); res = dmq_ul.get_urecord(_d, &aor, &r); if (res < 0) { LM_ERR("failed to retrieve record from usrloc\n");