[Bug 9975] unhandled exception - Conquer Online 2 - patch 4354+

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=9975





--- Comment #7 from Juan Lang <juan_lang at yahoo.com>  2007-10-10 12:15:26 ---
If you mean errors like:
0009:CALL MFC42.765(<unknown, check return>(0x110000,00000002,00000040):
returning 0x1d633f8
) ret=00401730
0009:RET  MFC42.765() retval=00000000 ret=00401730

Those are a red herring.  It just means that the parameters to the function are
unknown by the relay/snoop mechanism until the function returns because of the
calling convention.  (If you don't know what that means, just ignore.)

The problem is an uninitialized variable somewhere or another.  From the log,
the first seh entry is:
0009:trace:seh:raise_exception code=c0000005 flags=0 addr=0x4383e0
0009:trace:seh:raise_exception  info[0]=00000000
0009:trace:seh:raise_exception  info[1]=55555555
0009:trace:seh:raise_exception  eax=00000000 ebx=00000000 ecx=55555555
edx=00000029 esi=01d5f5f4 edi=7e77e8b0

c0000005 is an access violation, and ecx has the bogus value: 0x55555555. 
Microsoft uses that value for uninitialized variables in debug versions of
their libraries to help you catch bugs.  This could well be an app bug that
happens not to occur on Windows.


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