On Thu, 2010-09-16 at 10:53 +0530, Ankita Garg wrote: > > With some debugging I found that that section has reserved pages. On > instrumenting the memblock_reserve() and reserve_bootmem() routines, I can see > that many of the memory areas are reserved for kernel and initrd by the > memblock reserve() itself. reserve_bootmem then looks at the pages already > reserved and marks them reserved. However, for the very last section, I see > that bootmem reserves it but I am unable to find a corresponding reservation > by the memblock code. It's probably RTAS (firmware runtime services). I'ts instanciated at boot from prom_init and we do favor high addresses for it below 1G iirc. Cheers, Ben. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>