[Bug 55054] New: WineServer crash. (complete_async_poll: Assertion `output->count == signaled_count' failed)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55054

Bug ID: 55054
           Summary: WineServer crash. (complete_async_poll: Assertion
                    `output->count == signaled_count' failed)
           Product: Wine
           Version: 8.0.1
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: P2
         Component: wineserver
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Hello,

We are running two custom-built programs under Wine: a Manager (.Net framework
4.5) and a Streamer (WinApi).

The streamer program transfers audio/video streams from various devices (mostly
communicating over TCP), while the manager handles the starting/stopping of the
streamers (mostly communicating over HTTP). 
Up to 60-70 streamers can be running at once, with only one manager.

On Windows, these programs can run for weeks without any problems.

However, under Wine on Linux, I receive the following error message after about
an hour of operation:

wineserver: server/sock.c:1122: complete_async_poll: Assertion `output->count
== signaled_count' failed.

This leads to WineServer shutting down. 
Could you provide any insights into what this means, and if our own programs
are causing this, what modifications I would need to make to prevent this from
happening?

Wine-8.0.1 (64-bit)
Ubuntu 22.04.2 LTS (GNU/Linux 5.15.0-73-generic x86_64)

thank you,