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/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
