Regression in Wine on FreeBSD (DVD Shrink)

[Travis Poppe]

Hello All,

Lately I've been trying to track down a problem that prevents DVD Shrink 3.2 
from starting on FreeBSD in any version of Wine built on/after 04-20-2005 
(including the recent beta releases). Any version built prior to this works 
fine.

I've tracked the problem down to the changes made to x11drv/dib.c (and 
associated) on 04-20-2005. I'm not fluent in C; I merely found the problem 
through trial and error.

If I copy the x11drv/dib.c (and ntdll/, so the old dib.c will work) from 
04-18-2005 in place of the one introduced on the 20th, the problem disappears 
and DVD Shrink fires right up. Changing dib.c (and dib.c only) back to the 
20th snapshot re-introduces the problem, and DVD Shrink hangs again.

As I don't understand the code, I don't know how to detect where the problem 
really lies, as the dib.c changes may only be indirectly responsible. I am 
very willing to test for or aid anyone who wouldn't mind helping with this 
problem, however.

I have already contacted the author of the changes (dib.c and associated) and 
he suggested I try this list. If anyone would like to glance at the 
differences between the two files I've mentioned above, I have posted a diff 
here:

http://lickwid.net/~tlp/dib.c.diff

--- are the old and working changes
+++ are the new and broken changes

Any help would be greatly appreciated.

Thanks,

[Robert Shearman]

Travis Poppe wrote:
> Hello All,
>
> Lately I've been trying to track down a problem that prevents DVD Shrink 3.2 
> from starting on FreeBSD in any version of Wine built on/after 04-20-2005 
> (including the recent beta releases). Any version built prior to this works 
> fine.
>
> I've tracked the problem down to the changes made to x11drv/dib.c (and 
> associated) on 04-20-2005. I'm not fluent in C; I merely found the problem 
> through trial and error.
>
> I have already contacted the author of the changes (dib.c and associated) and 
> he suggested I try this list. If anyone would like to glance at the 
> differences between the two files I've mentioned above, I have posted a diff 
> here:
>
> http://lickwid.net/~tlp/dib.c.diff

It's possible that on FreeBSD the signal -> exception translation code 
doesn't mark whether it was a read or write fault. Other than that, the 
code should behave the same as before.

BTW, you don't need to host the file on a server. People are more likely 
to look at it if you attach it to your message.