> Apart from the fact that both machines are about the same age, they don't > seem to have much in common. However, both fail to boot at the same > point. > NET: Registered protocol family 2 > > Then it just stops. I've tried many different kernel versions (2.6.17-rt8, > 2.6.17-rt5, even as far back as 2.6.13-rt14), to no avail. I also tried > turning ACPI and APIC on/off, which didn't help either. Now I'm at a > loss... The same kernels boot just fine on a more recent machine. > > What else can I try, or how do I find out where exactly (and why) it > hangs? you can try adding kernel arguments like: noapic, nolapic, noacpi, irqpoll (not all at once) you can try changing the kernel config. irq polling styles (at-apic vs acpi is it?) cpu types (i386 vs Athlon), scheduler types (cfq vs this vs that) if you find out how to debug a frozen kernel (ie, doesnt even get a chance to print a backtrace) let us know. ive been tryin out ingo's kernel every 6 month or so for the past couple of years on a few differet amd64 rigs using the above techniques. so far it always blackscreens/reboots right after grub, freezes during boot, or freezes anywhere from 3 to 20 minutes after booting regardless of load. i dont want to say the above techniques are a total waste of time, as they do tend to change when it freezes from eg, right after grub, to later on, etc. so theyre doing something.. Is anyone successfully running a realtime kernel on a similarly old > machine? > > Thanks, > Dominic >
