[Bug 53588] New: listening tcp socket is removed after some time

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53588

Bug ID: 53588
           Summary: listening tcp socket is removed after some time
           Product: Wine
           Version: 3.0
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: P2
         Component: winsock
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Hi,

i'm testing a rather simple background windows application that uses only disk,
network, memory, processes and threads.
When starting, the application opens a pair (ip4 & ip6) of listening socket on
TCP port 80, and another pair of listening sockets on UDP port 13000. They are
always kept open.

At first everything works fine, all listening ports appear when doing netstat
and the application works great :

netstat -nap
    Active Internet connections (servers and established)
    Proto Recv-Q Send-Q Local Address           Foreign Address         State  
    PID/Program name
    tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN 
    15897/wineserver64
    tcp6       0      0 :::80                   :::*                    LISTEN 
    15897/wineserver64
    udp        0      0 0.0.0.0:13000           0.0.0.0:*                      
    15897/wineserver64
    udp6       0      0 :::13000                :::*                           
    15897/wineserver64

However, after some time (a few hours ?) suddenly the tcp listening sockets do
no longer appear when doing netstat :

netstat -nap
    Active Internet connections (servers and established)
    Proto Recv-Q Send-Q Local Address           Foreign Address         State  
    PID/Program name
    udp        0      0 0.0.0.0:13000           0.0.0.0:*                      
    15897/wineserver64
    udp6       0      0 :::13000                :::*                           
    15897/wineserver64

The UDP listening socket still appear, and the application responds fine to
requests on the UDP port.
However the TCP (http) connection on port 80 does not respond anymore.

What could be the cause of that, what can i test to pinpoint the problem ?
I saw the sockets are owned by wineserver64 so i guess they are managed by
wine.
Why does only the TCP disappear and not the UDP ?
Is there a timeout or some other settings ?

On pure Windows, the application works fine since years, so it must be some
problem with linux or wine.

I'm using wine-3.0 (Ubuntu 3.0-1ubuntu1)

i'm starting the app with the command line :

nohup wine planet_server.exe &

Thank you.