** Description changed: [Impact] without holding sufficient locks, accept_conn and shutdown_connections in AsyncMessenger could cause OSD processes crash [Test plan] + run ceph_test_async_networkstack repeatedly, this will trigger many async messenger events and make sure + 1. OSD process not crash + 2. no deadlock [Where problems could occur] hold sufficient locks and decrement l_msgr_active_connections can avoid OSD processes to crash due to race condition The only problem I can imagine is deadlock if one process is holding lock A and wait for lock B, the there is another process holding lock B and wait for lock A - [Other info] from upstream: octopus backport tracker https://tracker.ceph.com/issues/50482 octopus backport PR https://github.com/ceph/ceph/pull/43325
** Patch added: "0001-msgr-async-fix-unsafe-access-in-unregister_conn.patch" https://bugs.launchpad.net/ubuntu/+source/ceph/+bug/1953431/+attachment/5546429/+files/0001-msgr-async-fix-unsafe-access-in-unregister_conn.patch ** Tags added: sts sts-sru-needed verification-needed-focal ** Also affects: ceph (Ubuntu Focal) Importance: Undecided Status: New ** Changed in: ceph (Ubuntu Focal) Status: New => In Progress ** Changed in: ceph (Ubuntu Focal) Assignee: (unassigned) => gerald.yang (gerald-yang-tw) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1953431 Title: [SRU] fix unsafe access in unregister_conn() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ceph/+bug/1953431/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
