mail-archives/mono-bugs/2008-September/078906.html

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<TITLE> [Mono-bugs] [Bug 423975] New: SIGSEGV in mono_class_is_assignable_from
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<H1>[Mono-bugs] [Bug 423975] New: SIGSEGV in mono_class_is_assignable_from</H1>
<B>bugzilla_noreply at novell.com</B>
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TITLE="[Mono-bugs] [Bug 423975] New: SIGSEGV in mono_class_is_assignable_from">bugzilla_noreply at novell.com
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<I>Fri Sep 5 19:08:47 EDT 2008</I>
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<PRE><A HREF="https://bugzilla.novell.com/show_bug.cgi?id=423975">https://bugzilla.novell.com/show_bug.cgi?id=423975</A>
Summary: SIGSEGV in mono_class_is_assignable_from
Product: Mono: Runtime
Version: 2.0
Platform: x86-64
OS/Version: Ubuntu
Status: NEW
Severity: Normal
Priority: P5 - None
Component: misc
AssignedTo: <A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">mono-bugs at lists.ximian.com</A>
ReportedBy: <A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">casey.s.marshall at gmail.com</A>
QAContact: <A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">mono-bugs at lists.ximian.com</A>
Found By: ---
Created an attachment (id=238009)
--&gt; (<A HREF="https://bugzilla.novell.com/attachment.cgi?id=238009">https://bugzilla.novell.com/attachment.cgi?id=238009</A>)
Test case
Compiling the attached example results in a SIGSEGV in the function
mono_class_is_assignable_from, apparently because one of the types (the
&quot;Foo&lt;T&gt;&quot; type, I think) isn't completely constructed: the interface_bitmap
field is NULL, which is being accessed by the MONO_CLASS_IMPLEMENTS_INTERFACE
macro.
This is with the mono-2-0 branch, SVN revision 110293.
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