> On Jun 30, 2017, at 10:56 PM, Rugxulo <rugx...@gmail.com> wrote: > > Hi, > >> On Fri, Jun 30, 2017 at 8:02 PM, Jerome Shidel <jer...@shidel.net> wrote: >> >> In case you haven't heard, there is a severe bug in Intel Skylake and Newer >> CPUs. > > Most of us aren't trendy. This Nehalem Westmere (Core gen #1) is my > newest machine (so far). ;-)
What? Are you telling me DOS users aren't trendy? ;-) > >> I only know a little about it. From what I heard, it crops up with >> hyper-threading >> inside loops less than 64 bytes effecting several high byte registers (AH, >> BH, etc). >> They are working on a microcode patch and hopefully will have it out soon. > > Don't panic! Bugs are part of life ("par for the course"). At least they claim they can fix it. :-) > > http://www.os2museum.com/wp/vme-fixed-on-amd-ryzen/ > >> So, I guess it could effect DOS asm code running inside a VM. >> >> I think it's been a while since there last major bug. Last one I recall was >> that Pentium 90 Floating Point problem. > > You mean the FDIV bug? That was fixed in 120 Mhz (and higher) models. > > But there have always been other cpu bugs: > > * https://en.wikipedia.org/wiki/Pentium_F00F_bug > * (P3 serializing bug) > http://web.archive.org/web/20070808143526/http://clio.rice.edu:80/djgpp/r5bug05.txt I was never bit by ether. So, my memory of them is foggy at best. > > So this is far from the last one we'll see. No doubt. CPUs are complex little monsters. > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Freedos-devel mailing list > Freedos-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-devel ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel