[Bug 44168] New: Wizardry 8 hangs when starting a new game or loading a saved game

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=44168

            Bug ID: 44168
           Summary: Wizardry 8 hangs when starting a new game or loading a
                    saved game
           Product: Wine
           Version: 3.0-rc1
          Hardware: x86
               URL: https://www.fileplanet.com/81227/80000/fileinfo/Wizard
                    ry-8-Demo
                OS: Linux
            Status: NEW
          Keywords: download, regression
          Severity: normal
          Priority: P2
         Component: msvcrt
          Assignee: wine-bugs at winehq.org
          Reporter: gyebro69 at gmail.com
                CC: piotr.caban at gmail.com
   Regression SHA1: ee33d38c5041a8293c64257801572d1c742b0aba
      Distribution: ---

Created attachment 59933
  --> https://bugs.winehq.org/attachment.cgi?id=59933
terminal output

I tested this bug with the GOG.com version of the game, but it can be
reproduced with the demo version, too.
The demo contains only a sample save game but that will do to reproduce the
bug.

The game becomes unresponsive when I start a new game (after the party
selection and intro video), or when I try to load a previously saved game. The
game executable constantly pegging the CPU at 100% and the game needs to be
closed forcibly.

To reproduce the problem in the demo:
1. Install the demo and start Wiz8.exe. On first launch the game configuration
window will appear (requires mfc42.dll). Just accept the default settings and
get in the game.
2. In the menu select load game and choose the only available save game the
demo offers --> the game hangs for good.

Reverting the following commit fixes the problem for me:

commit ee33d38c5041a8293c64257801572d1c742b0aba
Author: Piotr Caban <piotr at codeweavers.com>
Date:   Mon Nov 27 20:29:44 2017 +0100

    msvcrt: Call cdecl functions with empty FPU stack in _CI* functions.

    The FPU stack should be empty on cdecl function call. Failing to do so
    breaks GCC 6.4.0 -O2 optimized code.


Using native msvcrt.dll also works around the problem (winetricks vcrun6).
I'm on Arch Linux (64-bit) and gcc version is: gcc version 7.2.1 20171128 (GCC)
I compiled Wine without compiler optimizations '-O0  -g' but that didn't solve
the problem.

wine-3.0-rc1-23-g081eae7ac3

Wiz8NetDemoEB.exe (143M)
md5sum: 728f87e9768102c71017675a1bb06425

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