[Bug 13706] Mankind encounters a page fault on startup

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=13706


Michael Karcher <wine at mkarcher.dialup.fu-berlin.de> changed:

           What    |Removed                     |Added
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  Attachment #13973|0                           |1
        is obsolete|                            |




--- Comment #6 from Michael Karcher <wine at mkarcher.dialup.fu-berlin.de>  2008-06-14 07:10:39 ---
Created an attachment (id=13997)
 --> (http://bugs.winehq.org/attachment.cgi?id=13997)
New fix

This seems to be an application bug. It checks the pointer in the variant
against NULL instead of checking the variant type against VT_EMPTY. With native
libraries, the whole var_post_data variant structure is filled with zeroes.
Native also allocates it on the stack, so I think it just works by accident.

The attached patch fixes the start of Mankind. This kind of bug explains why it
is reproducible only by some people: The contents of uninitialized stack
variables is highly dependent on compiler version and switches.


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