Comment # 28 on bug 947816 from Joey Lee

(In reply to Joey Lee from comment #27)
> (In reply to Takashi Iwai from comment #26)
> > OK, thanks for confirmation.  Yes, it sucks, I fully agree.
> > 
> > The workaround shouldn't be too hard, but it seems that upstream didn't like
> > the ideal to fall back.  Nevertheless, we may fix it inside kdump load.sh
> > instead of kexec, too.
> 
> Yes, the kexec upstream doesn't not take my patch on boo#951144 to fallback
> to old kexec system call. As you said, the kdump script needs to implement
> the fallback.

I simply traced the kdump code, my plan is to add the logic to
init/rc.kdump.functions.