On Wed, May 02, 2007 at 09:28:46AM -0700, Jeremy Fitzhardinge wrote: >>> I think this should be fixed now. Eric made all those writes >>> unconditional (to fix a problem with PSE superpages not being created). >>> The patch is in Andi's queue.
Bill Irwin <[EMAIL PROTECTED]> writes: >> It needs verification with the testcase from this thread. On Wed, May 02, 2007 at 11:16:27AM -0600, Eric W. Biederman wrote: > Sounds reasonable. > However there is no reason to suspect it won't fix this case because > unconditional writes are what we have always done, and we have always > kept swapper_pg_dir from early boot as well. > In essence my patch I sent out to Andi was a partial revert. It would not be so far out to be aware of what pagetable entries were carried over from the initial swapper_pg_dir and explicitly clobber them (for instance, modifying their protection bits while otherwise retaining them). On Wed, May 02, 2007 at 11:16:27AM -0600, Eric W. Biederman wrote: > It isn't slated to go in until nextround but I also rewrote the early > page table setup in C. Allowing set_fixmap to work in the early > kernel, and fix problems of not having enough memory mapped to build > the identity mappings, because we are then updating the page table > we have also in the PAE case. I'm not sure when we run into those problems, though I understand what they are. I suppose it would be good to resolve them. -- wli - 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/
