On Sat, Jun 15, 2019 at 6:15 AM Corbin Bird <corbinb...@charter.net> wrote:

> Disclosure :
> 1 : The CPU is a AMD FX-9590 ( Fam15h )
> 2 : Kernel command line parameter "eagerfpu=on" is being used.
>
> This kernel option was causing constant kernel hard locks.
> -----
> General setup --> [ ] CPU isolation.
> -----
> Anything that accessed the FPU would cause the CPU's ( SMP ) to "loose
> sync".
>

Just to clarify; do i have this right?

General setup --> [ ] CPU isolation. -> this is the broken setting

General setup --> [*] CPU isolation. -> this works (and is the default)

AFAICT in 5.x onward all the lazy FPU code is gone so its just eager.

Reply via email to