I've looked through all the stacks of running processes and can't see anything that looks tpg / iscsi related present that could be holding the mutex - at least per https://github.com/torvalds/linux/blob/818dbde78e0f4f11c9f804c36913a7ccfc2e87ad - but perhaps the Ubuntu kernel has some patch that affects this.
There are other stuck iscsi processes - thats definitely something going on: [<0>] iscsit_stop_session+0x18d/0x1a0 [iscsi_target_mod] [<0>] iscsi_check_for_session_reinstatement+0x1e7/0x280 [iscsi_target_mod] [<0>] iscsi_target_check_for_existing_instances+0x21/0x40 [iscsi_target_mod] [<0>] iscsi_target_do_login+0x1ec/0x570 [iscsi_target_mod] [<0>] iscsi_target_do_login_rx+0x24d/0x330 [iscsi_target_mod] [<0>] transport_generic_free_cmd+0x8b/0x150 [target_core_mod] [<0>] iscsit_free_cmd+0x5a/0xc0 [iscsi_target_mod] [<0>] iscsit_close_connection+0x4b9/0x850 [iscsi_target_mod] [<0>] iscsit_take_action_for_connection_exit+0x8c/0x110 [iscsi_target_mod] [<0>] iscsi_target_tx_thread+0x186/0x200 [iscsi_target_mod] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1904235 Title: targetctl hanging To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/targetcli-fb/+bug/1904235/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
