[Mono-bugs] [Bug 578169] New: Interlocked Increment/Decrement not working on mono as msdn suggests it should work.

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http://bugzilla.novell.com/show_bug.cgi?id=578169

http://bugzilla.novell.com/show_bug.cgi?id=578169#c0


           Summary: Interlocked Increment/Decrement not working on mono as
                    msdn suggests it should work.
    Classification: Mono
           Product: Mono: Class Libraries
           Version: 2.6.x
          Platform: x86
        OS/Version: openSUSE 11.3
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: CORLIB
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: tom_hindle at sil.org
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---


Created an attachment (id=341404)
 --> (http://bugzilla.novell.com/attachment.cgi?id=341404)
Interlocking Increment/Decrement example from msdn

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.7)
Gecko/20091222 SUSE/3.5.7-1.1.1 Firefox/3.5.7

Example taken from msdn: http://msdn.microsoft.com/en-us/library/dd78zt0c.aspx

I have run this on a single core / single processor laptop.


Reproducible: Sometimes

Steps to Reproduce:
1. Compile and run attached test case

Actual Results:  
It Varies but mostly:
UnsafeInstanceCount: 1
SafeCountInstances: 1
or:
UnsafeInstanceCount: 2
SafeCountInstances: 2

Expected Results:  
UnsafeInstanceCount: 0
SafeCountInstances: 0

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