On Wed, Dec 16, 2015 at 11:58 AM, Paul Dembry <p...@trifox.com> wrote:
> [AA] > A gamma ray collided with a 1 and knocked it over, turning it into a 0. > That's the only explanation I can think of. I used to think it was > sunspots or coronal mass ejections, but I've moved on. > > [PD] > Never ignore that possibilty, it reminds me of a problem that Sun > Microsystems had in the early 2000s with the E10000 Starfire systems. There > was some problem with the cache memory that would randomly alter a bit > (http://www.eweek.com/c/a/IT-Infrastructure/AmericaWest-Flight-Plan/2/). I > spent a week or so pouring over a customer's core dump and was able to show > that the value stored in memory had in fact been altered by one bit within > about 10 instructions, 0x1001 became 0x0001. > Paul > > Or, as one co-worker tells it, they have their CEC up against the back wall. Unbeknownst to them, on the other side of the wall is a mega-Gauss electromagnet. Magnet on, CEC fails. -- Schrodinger's backup: The condition of any backup is unknown until a restore is attempted. Yoda of Borg, we are. Futile, resistance is, yes. Assimilated, you will be. He's about as useful as a wax frying pan. 10 to the 12th power microphones = 1 Megaphone Maranatha! <>< John McKown ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
