https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106763
--- Comment #5 from Richard Earnshaw <rearnsha at gcc dot gnu.org> --- My guess (and it's only a guess because I'm not a kernel expert) is that the OS has disabled the FP/SIMD unit because of something like a context switch and then is failing, somehow, to recognize that the instruction is part of the VFP extension, so not re-enabling it. That's plausible because this instruction was added as later extension. I note that your kernel is from the linux 4 series, which is pretty ancient these days.
