Comment # 42 on bug 1112824 from Dead Mozay

(In reply to Zhiyuan Gao from comment #41)
> (In reply to Martin Wilck from comment #35)
> > (In reply to Michiel Janssens from comment #33)
> > > 3. boot with kernel parameters:
> > > spectre_v2=off
> > > Transition is smooth
> > > This parameter seems to have the biggest impact of all the tested parameters.
> > > 
> > 
> > Thanks a LOT for figuring this out. But reading above that only openSUSE is
> > affected - I'd assume that Ubuntu and Fedora are also shipping with these
> > mitigations enabled by default, no?
> 
> So I had a look upon fedora29.
> - kernel version 4.18.17
> - gnome version 3.30.2
> hyperthreading on and it seems spectre protection is also turned on
> 
> So presumably the only difference we have is that kernel version is
> different. 
> 
> What do you think?

Fedora kernel 4.19.2 there are no problems either