[Bug 42554] New: The Magic School Bus Explores The Solar System crashes while loading

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=42554

            Bug ID: 42554
           Summary: The Magic School Bus Explores The Solar System crashes
                    while loading
           Product: Wine
           Version: 2.2
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: z.figura12 at gmail.com
      Distribution: ---

Created attachment 57458
  --> https://bugs.winehq.org/attachment.cgi?id=57458
backtrace without environment variables

The exact symptoms of the crash seem to vary depending on whether the WINEDEBUG
and WINEPREFIX variables are set (but not what they are set to). Other
environment variables might have an effect, but none of WINEARCH,
WINEDLLOVERRIDES, WINESERVER do.

If neither are set, the crash looks like:

fixme:mmio:MMIO_InstallIOProc Global procedures not implemented
wine: Unhandled page fault on read access to 0x00001240 at address
0x101f:0x0000f104 (thread 0039), starting debugger...
Unhandled exception: page fault on read access to 0x00001240 in segmented
32-bit code (101f:00000509).

If one of the two is set (it does not matter which), the crash looks like:

fixme:mmio:MMIO_InstallIOProc Global procedures not implemented
wine: Unhandled page fault on read access to 0xffffffff at address
0x101f:0x000016ca (thread 0039), starting debugger...
Unhandled exception: page fault on read access to 0xffffffff in segmented
32-bit code (101f:00000509).

If both are set, the crash looks like:

fixme:mmio:MMIO_InstallIOProc Global procedures not implemented
fixme:mciavi:MCIAVI_mciSetAudio (0002, 00004002, 0x66e3d8) Item 0000: stub
fixme:mciavi:MCIAVI_mciSetAudio (0002, 00002002, 0x66e3d8) Item 0000: stub
fixme:mciavi:MCIAVI_mciPlay Unsupported flag 01000005
fixme:mmio:MMIO_InstallIOProc Global procedures not implemented
wine: Unhandled page fault on read access to 0x00004540 at address
0x101f:0x000016b6 (thread 0039), starting debugger...
Unhandled exception: page fault on read access to 0x00004540 in segmented
32-bit code (101f:00000509).

In the former two cases, the program crashes immediately before playing the
introductory video; in the latter case, the program crashes immediately after
the video is played (or skipped).

It may be noteworthy that the crash always occurs in DPMI_PendingEventCheck()
rather than in the program proper, with the problematic instruction being
"testl        $0xffffffff,%fs:0x00000200".

I ran a +heap trace and didn't come up with anything.

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