[Mono-bugs] [Bug 332866] Runtime exits without error message on vbnc compiled program.

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Thu Oct 11 11:52:52 EDT 2007


Paolo Molaro <lupus at novell.com> changed:

           What    |Removed                                         |Added
          Component|misc                                            |Basic
            Product|Mono: Runtime                                   |Mono: Compilers

--- Comment #1 from Paolo Molaro <lupus at novell.com>  2007-10-11 09:52:52 MST ---
The vbnc issue: what seems to happen here is that an object of type
MyApplication.SimpleWinFormsAppIcWriteline.My is passed to
System.Windows.Forms.Control:set_Visible, but it is not a Control.
Using mono from svn the --trace output is clear and we issue the SIGSEGV
message because in set_Visible a virtual call is made to an address which is
not setup (since the object is not a Control) that happens to be 0, but it
could be almost anything. Since 0 is not an address in the generated native
code of managed methods, we have no idea how to handle it. I'll add a change to
svn to handle such cases better.

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