[HN Gopher] A debugger barrier
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       A debugger barrier
        
       Author : luu
       Score  : 23 points
       Date   : 2023-03-23 03:38 UTC (19 hours ago)
        
 (HTM) web link (msinilo.pl)
 (TXT) w3m dump (msinilo.pl)
        
       | amenghra wrote:
       | Memory Reordering Caught in the Act covers this topic and is very
       | well written: https://preshing.com/20120515/memory-reordering-
       | caught-in-th...
        
       | anyfoo wrote:
       | I kind of knew where this was going in terms of the actual bug,
       | but the way they've "proven" their fix is indeed pretty neat. I
       | would have thoroughly explained the bug and fix, but in order to
       | actually verify I honestly most probably would have just done
       | what they suggested (and rejected) first: Run it long enough to
       | show that the issue does not occur anymore.
       | 
       | As an aside, I have not stared at the problem long enough to say
       | this with full confidence, but if the barriers they inserted are
       | full barriers, they might be _too_ strong. acquire /release might
       | have been sufficient.
        
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       (page generated 2023-03-23 23:00 UTC)