On Thu, 2007-12-13 at 13:33 -0800, Christoph Lameter wrote: > > > > Ah ok, so that's a NUMA issue due to how the quicklists are > implemented, > > I see. Note that the flush isn't necessary a solution on all > platforms. > > On powerpc, I -still- need to defer with RCU as we don't do anything > in > > flush tlb. Our TLB invalidations are HW broadcast in the first > place, > > but what we need to sync with is the SW hash reload code. > > > > So your solution in the quicklists doesn't solve the problem for us. > > No this may mean that the problem does not exist on powerpc since it > seems to be okay to free pages before all processors have flushed the > TLBs? Or are you deferrring the freeing of the pages via RCU?
I'm deferring the freeing with RCU. Ben. -- 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/