I run 64-bit Ubuntu as a vmm guest, according to: https://gist.github.com/reyk/6d369c5c0bd0c76f4906f83933f3bb71
It works well for the most part; I have removed cloud-init becaue I do not need it. However, I used Python 2.7 with numpy 1.12 (installed via Pip), and experienced crashes which seemed to be related to AVX2 instructions, even though the cpu should support this, according to /proc/cpuinfo. (cf. https://github.com/numpy/numpy/issues/8128). For example, when I tried to reproduce this simple chart, https://matplotlib.org/examples/lines_bars_and_markers/fill_demo.html, this made Python exit with illegal instruction, according to gdb: Program received signal SIGILL, Illegal instruction. 0x00007ffff3ce5d56 in UBYTE_less_equal_avx2 (args=0x7fffffffba50, dimensions=<optimized out>, steps=<optimized out>, __NPY_UNUSED_TAGGEDfunc=<optimized out>) at numpy/core/src/umath/loops.c.src:899 Downgrading to numpy 1.11.1~rc1 (the version available from as an Ubuntu package) seems to have fixed the issue.
