On Mon, 1 Oct 2012, Jamie Gloudon wrote: > > Interesting. I am able to reproduce the same problem as you using mem=700M, > which shows: > > DirectMap4k: 4096 kB > DirectMap2M: 18446744073709547520 kB > > However, it appears to be normal without the boot parameter: > > DirectMap4k: 4096 kB > DirectMap2M: 15708160 kB
It appears to be normal because the calculations haven't wrapped around, but if you compare with 3.4 or before, I think you'll find that it still adds up to too little. > > What does your output looks like with the full amount on 3.6? On 3.6: MemTotal: 8060528 kB ... DirectMap4k: 2048 kB DirectMap2M: 7229440 kB So it's showing significantly less direct mapped than is included in MemTotal (which itself omits some areas of reserved memory). Whereas on 3.4: MemTotal: 8060760 kB ... DirectMap4k: 4096 kB DirectMap2M: 8275968 kB Hugh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
