Comment # 4 on bug 1095699 from S. B.

(In reply to Takashi Iwai from comment #3)
> The ACPI error messages are mostly harmless, indicating the BIOS firmware
> error, not a kernel problem, per se.  You can ignore it unless you see any
> real problems related with it.
Ah OK, thanks.

> About the boot time, try to install the old Leap 42.3 kernel (with
> --oldpackage option), boot with it, and give the dmesg output.  Then we can
> compare the timestamps.
Good idea. I just did so, and it looks like the old Leap 42.3 kernel is
actually a few seconds *slower* to boot when compared with the Leap 15.0
version. I do still think feel like the system is slower to boot than before,
but it's probably not a kernel issue, and no easy way to verify the previous
boot time with 42.3.