[Bug 50166] New: Benchmark Sims BMS 4.34 flight sim hangs when air traffic control uses TTS, able to get backtrace

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50166

            Bug ID: 50166
           Summary: Benchmark Sims BMS 4.34 flight sim hangs when air
                    traffic control uses TTS, able to get backtrace
           Product: Wine
           Version: 5.21
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: setupapi
          Assignee: wine-bugs at winehq.org
          Reporter: freehand at tutanota.com
      Distribution: ---

Created attachment 68684
  --> https://bugs.winehq.org/attachment.cgi?id=68684
backtrace produced at the moment BMS 4.34 hangs, during air traffic TTS

The latest version of the Falcon 4 community patch project is BMS 4.34, which
adds sophisticated air traffic control.  Though it is maintained and developed
by volunteers, as of 2020 BMS 4.34 is one of the best combat flight sims
available, comparable to the best commercial products. Previous versions, such
as BMS 4.33, are rated platinum compatibility with wine.  With BMS 4.34,
though, wine hangs when air traffic control TTS is used.

I experimented with sound settings and was able to get a backtrace rather than
just a hang (see attachment).  

My specific procedure was:

I am using wine 5.21 (Staging) on Ubuntu 20.04 LTS.

As a first step, I got a reproduceable hang by starting BMS 434, choosing TE #1
ground ops, selecting the training flight entering 3D with the default ramp
start, then waiting for the hang at about 10:28:47 on the cockpit clock at
upper right. While waiting I was watching the running processes on a second
monitor using the linux top command. I saw the pulseaudio process active a lot,
so I exited BMS, set sound volume to zero in Ubuntu, restarted BMS, turned all
sound volume to zero, then started the TE #1 again. Then in top I killed the
pulseaudio process.

Why do all this with the sound? In hopes of generating a stack trace. It
worked! BMS produced the stack trace dialog at the point where it usually
hangs.

>From the stack trace it appears that the problem is in VoiceManager (see stack
trace below). Components involved appear to be:
installation and setup API ( dlls/{cfgmgr32,newdev,setupapi} )
Common Controls DLL ( dlls/comctl32/ )
winmm and mci ( dlls/{winmm,mciavi32,mcicda,mciseq,mciwave}/ )

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