On Tue, 2006-10-31 at 22:27 +0100, Ernst Herzberg wrote: > With 2.6.18.x everything works fine. > > But 2.16.19-rc does not boot if the laptop runs on battery _and_ lapic > is > defined as boot parameter. > > The kernel loads and starts, for a fraction of a second some messages > appears, > then the screen goes blank and nothing more happens. > > I'm unable to read the last message, screen blanking is to fast, but > the > 'picture' looks like that he stops near the messages where at the > normal > boot demsg "Local APIC disabled by BIOS -- you can enable it with > "lapic"" > appears. Hi, If you don't enable lapic, you will see cat /proc/interrupts with XT-PIC. if you try enable lapic, somehow IRQ routing should change and if /proc/interrupts still the same, with IRQs on XT-PIC. I think, lapic still not enable and you just get problems. Unless you know that lapic works, you should try it enable because it a trap that just give you a problem. Some years ago (2002/3) was a very common bug kernel try enable automatically lapic (when BIOS don't) and computer hangs . -- Sérgio M.B.
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