On Wed, Apr 27, 2011 at 22:18, James Bottomley
<James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote:
> These two fixes contain the agreed fix for our slub panic (agreed with
> the mm folks that we'll define SLUB broken in the !NUMA && DISCONTIGMEM
> case, which should fix m86k as well) and another buglet that turned up
> examining the parisc discontigmem code.
Do we still need to mark SLUB broken?
On m68k, the issue seems to have been fixed by setting the N_NORMAL_MEMORY flag
(pull request scheduled after one more linux-next build cycle).
Or do you plan to unmark it broken once every affected arch sets the
N_NORMAL_MEMORY flag?
> The patches are here:
>
> master.kernel.org:/pub/scm/linux/kernel/git/jejb/parisc-2.6.git#fixes
>
> The short changelog is:
>
> David Rientjes (1):
> Â Â Â[PARISC] set memory ranges in N_NORMAL_MEMORY when onlined
>
> James Bottomley (1):
> Â Â Â[PARISC] slub: fix panic with DISCONTIGMEM
>
> The diffstat is:
>
> Âarch/parisc/mm/init.c | Â Â4 +++-
> Âinit/Kconfig     Â|  Â1 +
> Â2 files changed, 4 insertions(+), 1 deletions(-)
>
> And the full diff are below.
>
> James
>
> ---
>
> diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
> index b7ed8d7..b1d1262 100644
> --- a/arch/parisc/mm/init.c
> +++ b/arch/parisc/mm/init.c
> @@ -266,8 +266,10 @@ static void __init setup_bootmem(void)
> Â Â Â Â}
> Â Â Â Âmemset(pfnnid_map, 0xff, sizeof(pfnnid_map));
>
> - Â Â Â for (i = 0; i < npmem_ranges; i++)
> + Â Â Â for (i = 0; i < npmem_ranges; i++) {
> + Â Â Â Â Â Â Â node_set_state(i, N_NORMAL_MEMORY);
> Â Â Â Â Â Â Â Ânode_set_online(i);
> + Â Â Â }
> Â#endif
>
> Â Â Â Â/*
> diff --git a/init/Kconfig b/init/Kconfig
> index 56240e7..a7ad8fb 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -1226,6 +1226,7 @@ config SLAB
> Â Â Â Â Âper cpu and per node queues.
>
> Âconfig SLUB
> + Â Â Â depends on BROKEN || NUMA || !DISCONTIGMEM
> Â Â Â Âbool "SLUB (Unqueued Allocator)"
> Â Â Â Âhelp
> Â Â Â Â Â SLUB is a slab allocator that minimizes cache line usage
Gr{oetje,eeting}s,
            Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
             Â Â -- Linus Torvalds
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