On Mon, Aug 17, 2015 at 1:01 AM, Ingo Molnar <mi...@kernel.org> wrote: > So when I re-introduced static allocations math-emu started working again, to > a > limited degree: on a modern distro, trying to boot /bin/bash I got a prompt, > but > various programs would segfault. I did not investigate it any deeper, I > suppose > the FPU emulation does not go far enough for modern user-space, or maybe it > has > more bugs. >
Were you testing with just no387 or did you run a VM with SSE2 and such turned off? There's a *lot* of userspace that incorrectly checks for instructions without checking for the state support. I've filed bugs against libgcc for this and they're still not fixed IIRC. --Andy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
