Comment # 9 on bug 1094430 from Tony Mechelynck

(In reply to Josef Reidinger from comment #8)
> OK, so I worry there is not much we can do in advance. Especially when it
> fails not in yast2 itself but in grub2 mkconfig script, probably together
> with os-prober that probing windows partition.
> So sorry, we cannot do much to avoid this situation (and quessing how much
> free memory we will need in advance is hard job due to many other
> dependencies). Closing as won't fix.

OK. Next time I'll make sure memory isn't "almost full" when I change the
default kernel (and probably at other times too). I think WONTFIX is the only
thing to do, considering what you found out.