On Tue, Jul 25, 2006 at 12:29:34PM -0700, keith mannthey wrote: > On Tue, 2006-07-25 at 14:34 -0400, Dave Jones wrote: > > On Tue, Jul 25, 2006 at 11:24:42AM -0700, keith mannthey wrote: > > > > > Modern Summit hardware x460 is EMT64e (x440,x445 is not) but as you > > > know sometimes customers run 32bit OS's on 64bit boxes. > > > > I hear this from time to time, and every time I ask "why doesn't > > 32bit emulation in 64bit kernel work for you work?", the only > > answers that seen to come back are various flavours of > > "we didn't know about it" or "haven't tried it". > > Is there a "Guarantee" that 32bit apps will just work with 64bit > kernels? I don't think all 32bit apps test (or work) on 64bit OS and a > such don't fall in the "Supported" configuration. Customers like to have > ground to stand on when things break. If they run unsupported in their > software stack things can get messy (who will fix it?) if problems arise > or performance is bad compared to 32bit native. This is exactly the sort of hand-waving I was talking about. If something doesn't work, lets find out why and _FIX_ it. Scaremongering, and handwaving isn't going to solve a single bug. 32bit emulation sees a fair amount of testing. I daresay, a significant amount more than i386 NUMA has ever seen, so "There might be bugs" is just a ridiculous position. Dave -- http://www.codemonkey.org.uk -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
