How do I know if my laptop if affected? :)
$ grep ' pae ' < /proc/cpuinfo
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36
clflush dts acpi mmx fxsr sse sse2 ss ht tm
So that machine has the necessary harware. If ' pae ' is missing,
then such a machine does not have good enough hardware.
--