On Wed, Aug 21, 2013 at 09:25:47PM +0400, Cyrill Gorcunov wrote: > > > > However, I do find the use of PTE bits in this way somewhat fragile. > > What other potential corner cases might still remain that will require > > further games with PTE bits? > > OK, so this is not a bug finally. The problem is that 2 level pte is > quite small and 7th bit is the only one spare I can use for soft dirty > tracking when page get swapped out. And swap engine is very depending > on pte being non-present, so we are on a safe side.
To make it clear: I'm working on patch that won't use pse bit for dirty page tracking, just give some time to cook it and test. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
