From: terje.mathisen@nospicedham.tmsw.no   
      
   src153 wrote:   
   > On Fri, 5 Apr 2019 09:04:35 +0200, Terje Mathisen wrote:   
   >   
   >> You have of course considered Rowhammer and similar attacks?   
   >   
   > They say Rowhammer can defeat ECC too, with a 3-bit flip, because most   
   > ECC can only detect 1 or 2 bit errors.   
   >   
   >   
   >> shown to cause errors in otherwise perfectly OK memory chips   
   >   
   > It's like airplanes. Just when they tell you it's safe to fly, whoops   
   > there goes another nosedive.   
   >   
   >   
   Ouch.   
      
   The preliminary report from the ET flight (the second crash) indicates   
   that the pilots knew about the emergency procedures to be used in case   
   of MCAS trouble, applied them and still could not avoid a nosedive.   
      
   As programmers we really need to consider the possible error scenarios   
   our programs could experience, and what the consequences could be.   
      
   Just once in my life have I been called in to trouble-shoot a sw error   
   which was a real life-or-death problem:   
      
   A new hospital in Oslo had experienced a total failure of the emergency   
   notification system which should gather the crash surgical team, in this   
   case an immediate C-section was delayed because the surgeon could not be   
   contacted.   
      
   Thankfully I did figure that one out within a few days, used that   
   knowledge to get a workaround in place and flew from Norway to the US to   
   spend a week in the lab of one of the involved vendors.   
      
   We developed, tested out and verified a solid sw fix for a problem which   
   was really caused by another, larger (Canadian) vendor and got that   
   installed on all the 1200-1500 personal devices used by the medical staff.   
      
   Terje   
      
   --   
   -    
   "almost all programming can be viewed as an exercise in caching"   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)