That is not true. It *does* work, and I have tested it fairly recently. On August 17, 2015 9:47:01 AM PDT, Linus Torvalds <torva...@linux-foundation.org> wrote: >On Mon, Aug 17, 2015 at 1:01 AM, Ingo Molnar <mi...@kernel.org> wrote: >> >> Any objections against removing all of math-emu in v4.3? This would >simplify the >> FPU code in various places beyond math-emu/. > >Hmm. I guess we could just try. The fact that you argue that the FP >emulation likely hasn't worked for a few years is a pretty powerful >argument that nobody has cared. And if somebody does, and ends up >having a use case and willing to test, we can always re-animate the >zombie that is math emu support. > >Considering that we don't support the old i386 any more, the only chip >I know of that needs it is the i486sx. However, there are probably >several clone chips that did the "we're a 486" thing by adding the few >integer instructions but not doing a FPU. And there might well be >various embedded versions of the 486 that might even be in use still. >But afaik most distributions have required Pentium of P6-level >capabilities for some time, and I guess any existing old systems >aren't going to upgrade their kernels anyway. > > Linus
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