[OpenSIPS-Devel] [OpenSIPS/opensips] e75ebb: dialog: Fix possible deadlocks with pinging + HA

[Liviu Chircu]

  Branch: refs/heads/3.0
  Home:   https://github.com/OpenSIPS/opensips
  Commit: e75ebb8b80af41e9829368618618afe558f88ca0
      https://github.com/OpenSIPS/opensips/commit/e75ebb8b80af41e9829368618618afe558f88ca0
  Author: Liviu Chircu <liviu at opensips.org>
  Date:   2019-09-30 (Mon, 30 Sep 2019)

  Changed paths:
    M modules/dialog/dlg_replication.c

  Log Message:
  -----------
  dialog: Fix possible deadlocks with pinging + HA

The OPTIONS pinging + replicated dialog creation routines were
sufferring from a possible AB/BA deadlock, as they were
both attempting to grab the dialog and the ping timer list locks, but in
differring order.

Many thanks to 46Labs for supporting this fix