On Mon, Jan 02, 2006 at 11:29:26PM +0000, Andy Burns wrote: > Dave Jones wrote: > > >Does acpi=off on the smp kernel make any difference? > > acpi=off with the SMP kernel doesn't break it > acpi=off with the UP kernel doesn't mend it > > >Any chance you can hook up another pc, and get a serial capture > >of the failing boot ? > > Below is the UP log, followed by SMP log for good measure > > Incidentally, is it correct that the UP kernel only approximates NX, yet > the SMP kernel makes proper use of NX? If the CPU has hardware NX support , then the SMP kernel does take advantage of it, whilst the UP one has to fall back on segment-limit approach to 'emulate' it. The reason for this is that the SMP kernel has support for physical address extensions (PAE) (Ie, >4GB RAM) and NX is dependant on that. The UP kernel doesn't have PAE because a kernel compiled with that supported doesn't boot on systems that lack it, (Celerons, early VIA, some mobile Pentium) > Would disabling HT in BIOS affect it? You tell me :) I can't think of any reason why this has suddenly broken that would be related to that though. Dave -- fedora-test-list mailing list fedora-test-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-test-list