On 01/22/2013 07:20 AM, Thomas Renninger wrote: > From: Yinghai Lu <yinghai at kernel.org> > > memmap=exactmap will throw away all original, but also until then > user defined (through other provided memmap= parameters) areas. > That means all memmap= boot parameters passed before a memmap=exactmap > parameter are not recognized. > Without this fix: > memmap=x at y memmap=exactmap memmap=i#k > only i#k would get recognized. > > This is wrong, this fix will only throw away all original e820 areas once > when memmap=exactmap is found in the whole boot command line and before > any other memmap= option is parsed. > I don't understand why this is wrong. The kernel command line is always parsed from left to right, and I don't see anything inherently problematic with that with something like a big hammer like exactmap. -hpa
