BYOND Version:512.1454
Operating System:Linux
Web Browser:Chrome 64.0.3282.140
Applies to:Dream Daemon
Status: Open

Issue hasn't been assigned a status value.
Descriptive Problem Summary:

world.OpenPort() works almost all the times you'd expect it to on Linux EXCEPT when the security level is set to trusted

Code Snippet (if applicable) to Reproduce Problem:
Using this with a combination of strace and -params I have determined the port change isn't even attempted while running in trusted mode whereas it works fine in safe and ultrasafe modes

sleep_offline = FALSE


sec_level = params["sec_level"]
log << "Please run with -params \"sec_level=<DD security level>\""

//should have launched with strace
var/result = OpenPort(12346)
log << "Result: [result] ([result == null])"

set name = "Do test (with client)"
if(sec_level == "trusted")
var/pid = input("Enter DD PID") as num
shell("strace -y -yy -C -o /code/verb_with_client_[sec_level].log -p [pid] &")
var/result = world.OpenPort(12346)
world.log << "Result: [result] ([result == null])"

set name = "Do test (without client)"
if(sec_level == "trusted")
pid = input("Enter DD PID") as num
del_client_and_continue(src, pid)

/proc/del_client_and_continue(client/C, pid)
if(sec_level == "trusted")
shell("strace -y -yy -C -o /code/verb_no_client_[sec_level].log -p [pid] &")
var/result = world.OpenPort(12346)
world.log << "Result: [result] ([result == null])"

Expected Results:
The port changes and the new port value is returned
Actual Results:
The port doesn't change and null is returned

Does the problem occur:
Every time

When does the problem NOT occur?
Running on ultrasafe or safe

Did the problem NOT occur in any earlier versions? If so, what was the last version that worked? It occurs at least up to 512.1427 but probably earlier too

None in BYOND
Is the issue only in world.New() or is it everywhere? And what do you see in the logs, if anything?
This occurs everywhere (world/New(), client verbs, spawned code, etc). When it works, you get the standard "World no longer open to new players"/"World now open on port xxxx" messages. When it doesn't, there's no output
The issue still persist with 512.1463, is any more info needed?
I think I may have a fix for this in 512.1465 but I won't add it to the official release notes till it's confirmed.