> On Fri, 28 Mar 2008 11:48:55 +0100 Pawe__ Staszewski <pstaszewski@artcom.pl> wrote:
>
> > Linus Torvalds pisze:
> > > On Thu, 27 Mar 2008, Christoph Lameter wrote:
> > >
> > >> Slab allocations can never use GFP_HIGHMEM.
> > >>
> > >
> > > Totally irrelevant.
> > >
> > > The page allocation path does
> > >
> > > if (gfp_flags & __GFP_ZERO)
> > > prep_zero_page(page, order, gfp_flags);
> > >
> > > and that will cause a warning REGARDLESS of whether the page is a HIGHMEM
> > > page or not.
> > >
> > > And the fact is, passing in GFP_ZERO from the SLUB code is a bug
> > > regardless, because it unnecessarily does the dual memset().
> > >
> > > So here's a damn big clue:
> > > - SLUB does its own GFP_ZERO handling
> > > - so passing GFP_ZERO down to the page allocator is a f*cking bug
> > > - and this has NOTHING what-so-ever to do with GFP_HIGHMEM or even
> > > whether the warning is "valid" or not - it's a bug even if the warning
> > > had never happened.
> > >
> > > So stop blathering, and just admit that this was buggy. It was also
> > > fundamentally fragile to leave GFP_ZERO around when it was known to not be
> > > valid at that point (exactly because GFP_ZERO was handled by the caller).
> > >
> > > Linus
> > >
> > >
> > >
> > Sorry for offtopic but i have the same problem with kernels 2.6.25-*
> > like:
> >
http://kerneltrap.org/mailarchive/linux-netdev/2008/3/27/1274804
> >
http://kerneltrap.org/mailarchive/linux-netdev/2008/3/27/1270334
> >
> > I search linux-netdev and found this links.
> > I only sugest that
> >
> > Denys Fedoryshchenko
> >
> > can have the same problem that i have with this kernels.
> > I must revert my all kernels to 2.6.23.11 to get stable work on high (ip
> > traffic) loads.
> >
> > And there is no documentation for LRO... and Stephen Hemminger write me
> > that LRO is not compatible with bridgeing and routing.
> > see this link:
> >
http://bugzilla.kernel.org/show_bug.cgi?id=10335
> >
> >
> > So there must be some documentation for this ... because people can have
> > many problems with this.
> >
>
> These are all networking things, so let's cc that list.
>
> >
> > Sorry for offtopic but this can resolve problems like my and Denys .
>
> It's very on-topic - thanks for the reminder.
>
> Rafael, are these things actually on the list?
