[Bug 13128] New: Unhandled privileged instruction at address

http://bugs.winehq.org/show_bug.cgi?id=13128

Summary: Unhandled privileged instruction at address
           Product: Wine
           Version: CVS/GIT
          Platform: All
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Created an attachment (id=12925)
 --> (http://bugs.winehq.org/attachment.cgi?id=12925)
crash log

i'm testing medieval total war and the latest version (git or 1.0rc) crash very
early, when in the past it work longer... so this is a regression.

the crash log will be attached, but the error was:

wine: Unhandled privileged instruction at address 0x7c02edd8 (thread 0026),
starting debugger...
Unhandled exception: privileged instruction in 32-bit code (0x7c02edd8).

i tried to pin-point the patch that broke this and found this one:

653c7e7dcaf7ebee2cfc8a6e356779dc8974aac6 is first bad commit
commit 653c7e7dcaf7ebee2cfc8a6e356779dc8974aac6
Author: David Adam 
Date:   Sun Apr 27 12:10:32 2008 +0200

amstream: Fix the condition of existence of the IMediaStream interface.

:040000 040000 93801c98208e6fd29aff759a12bbee6b02241de9
339a6b671e82ef9c29cb5627b7b2d24ef26f8df1 M      dlls

before this patch, the game didnt crashed on start, after this patch, the game
crashes on startup