[Bug 53709] New: Janes Longbow 2 crashes due to privileged instruction in 32bit code

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53709

Bug ID: 53709
           Summary: Janes Longbow 2 crashes due to privileged instruction
                    in 32bit code
           Product: Wine
           Version: 7.0
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 73131
  --> https://bugs.winehq.org/attachment.cgi?id=73131
backtrace.txt

I'm trying to get 1997's "Jane's Longbow 2" running. I've tried Crossover on
macOS and Bottles on a SteamDeck and in both cases I get a crash while
launching the game, with an error message about a privileged instruction.

Since the game has long since stopped being sold, it's fairly easily available
in software preservation archives, if anybody is interested in taking a look.

I've attached a backtrace from the Steam Deck.

[Bug 53709] Janes Longbow 2 crashes due to privileged instruction in 32bit code

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53709

--- Comment #1 from Chris Jones  ---
AFAICT this particular game has never worked in WINE, there are nearly
identical comments reporting the same issue since 2007:
https://bugs.winehq.org/show_bug.cgi?id=9652#c8

[Bug 53709] Janes Longbow 2 crashes due to privileged instruction in 32bit code

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53709

--- Comment #2 from Zeb Figura  ---
    Wine build: wine-7.0.r0.g2fc92f8b ( TkG Staging )

I'm going to assume it's not relevant here, but in the future please either
test with upstream wine, or report bugs to third-party projects.

Does changing the Windows version to Windows 95 help? You may need to create a
new 32-bit prefix.

[Bug 53709] Janes Longbow 2 crashes due to privileged instruction in 32bit code

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53709

--- Comment #3 from Chris Jones  ---
I am not very good at wrangling a disassembler, but I think this is the
relevant section of code:

; ================ B E G I N N I N G   O F   P R O C E D U R E
================

; Variables:
        ;    arg_4: int, 8
        ;    arg_0: int, 4

sub_4530a0:
004530a0         xor        eax, eax                                           
; CODE XREF=sub_412273+26
004530a2         mov        dx, word [esp+arg_0]
004530a7         mov        al, byte [esp+arg_4]
004530ab         out        dx, al
004530ac         ret
                        ; endp

so 0x4530ab would be a call to OUT, which I guess could make some sense as a
privilege error if it's trying to write to some IO port it's not allowed to?

[Bug 53709] Janes Longbow 2 crashes due to privileged instruction in 32bit code

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53709

--- Comment #4 from Chris Jones  ---
(In reply to Zeb Figura from comment #2)
> Wine build: wine-7.0.r0.g2fc92f8b ( TkG Staging )
>
> I'm going to assume it's not relevant here, but in the future please either
> test with upstream wine, or report bugs to third-party projects.
>
> Does changing the Windows version to Windows 95 help? You may need to create
> a new 32-bit prefix.

I've tried a number of different versions and it seems to be pretty consistent
throughout. Apologies for using a non-upstream wine.

[Bug 53709] Janes Longbow 2 crashes due to privileged instruction in 32bit code

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53709

Zeb Figura  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

--- Comment #5 from Zeb Figura  ---
Hrm, usually (In reply to Chris Jones from comment #4)
> (In reply to Zeb Figura from comment #2)
> > Does changing the Windows version to Windows 95 help? You may need to create
> > a new 32-bit prefix.
>
> I've tried a number of different versions and it seems to be pretty
> consistent throughout. Apologies for using a non-upstream wine.
> > Wine build: wine-7.0.r0.g2fc92f8b ( TkG Staging )
> >
> > I'm going to assume it's not relevant here, but in the future please either
> > test with upstream wine, or report bugs to third-party projects.

Hrm. It should be trying to emulate the outsb in windows 95 mode. Can you
please attach a log with the version set to windows 95 and
WINEDEBUG=+pid,+module,+seh,+int,+io ?

[Bug 53709] Janes Longbow 2 crashes due to privileged instruction in 32bit code

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53709

--- Comment #6 from Chris Jones  ---
Ok, some progress at least - I switched to upstream wine and ran it on Linux
instead of macOS, and the game is at least trying to start now - I was able to
get it to object to not having a CD present, but when mounting that and running
again, I get a different crash that looks to be in something DLL related.

[Bug 53709] Janes Longbow 2 crashes due to privileged instruction in 32bit code

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53709

--- Comment #7 from Chris Jones  ---
Created attachment 73137
  --> https://bugs.winehq.org/attachment.cgi?id=73137
wine-debug-longbow2.txt

[Bug 53709] Janes Longbow 2 crashes due to privileged instruction in 32bit code

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53709

Zeb Figura  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW

--- Comment #8 from Zeb Figura  ---
The crashing address from the backtrace is not quite right; it seems to result
from a misguided attempt to handle access to the idtr in kernelbase. The actual
crash is a few instructions earlier, though. Either way it's in an application
DLL, with no easy clue what's causing it.

[Bug 53709] Janes Longbow 2 crashes on launch

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53709

Zeb Figura  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Janes Longbow 2 crashes due |Janes Longbow 2 crashes on
                   |to privileged instruction   |launch
                   |in 32bit code               |

[Bug 53709] Janes Longbow 2 crashes on launch

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53709

--- Comment #9 from Chris Jones  ---
Thanks very much for helping with the analysis here - I am definitely out of my
depth!
I don't think I am realistically going to be able to step through the assembly
and debug this, but there is at least one other version of the game around, and
it can be run in 3dfx/Direct3D/software rendering modes, so I'll try out some
permutations and see if anything changes.