Is it known problem, that zfs.ko could not be built with system compiler (clang 3.9.1) without optimization?

[Steven Hartland]

I seem to remember this happening when I tried it too, likely it blows 
the stack, what's your panic?

When doing similar tracing before I've flagged the relevant methods with 
__noinline.

On 22/02/2017 20:47, Lev Serebryakov wrote:
> Hello Freebsd-stable,
>
>     Now if you build zfs.ko with -O0 it panics on boot.
>
>     If you use default optimization level, a lot of fbt DTreace probes are
>    missing.
>