On Wed, 3 Oct 2007, David Miller wrote: > > there is still code that does DMA from and to the stack.... > > how would this work with virtual allocated stack? > > That's a bug and must be fixed. > > There honestly shouldn't be that many examples around. > > FWIW, there are platforms using a virtually allocated kernel stack > already.
There would be a way to address this by checking in the DMA layer for a virtually mapped page and then segmenting I/O at the page boundaries to the individual pages. We may need that anyways for large block sizes. - 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/
