On Tuesday 10 March 2020 07:33:07 andy pugh wrote: > On Tue, 10 Mar 2020 at 11:31, andy pugh <[email protected]> wrote: > > https://yarchive.net/comp/linux/kernel_fp.html > > > > which is Linus so on that subject, fairly authoritative. > > Though clearly LinuxCNC has been doing a _lot_ of FP in kernel modules > for decades now...
On another list, the finger has been pointed at the compiler, gcc 8.3 uses a certain sse instruction to build rtai and it crashes, but gcc 6.x doesn't and rtai doesn't crash. How valid that claim is I haven't a clue. But it would seem to be worth checking out. sse/sse2 family instructions seemingly are not legal in kernel code. Or something like that. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
