On Thu, 2005-01-20 at 22:20 -0800, Andrew Morton wrote: > Andrea Arcangeli <[EMAIL PROTECTED]> wrote: > > > > This is the forward port to 2.6 of the lowmem_reserved algorithm I > > invented in 2.4.1*, merged in 2.4.2x already and needed to fix workloads > > like google (especially without swap) on x86 with >1G of ram, but it's > > needed in all sort of workloads with lots of ram on x86, it's also > > needed on x86-64 for dma allocations. This brings 2.6 in sync with > > latest 2.4.2x. > > But this patch doesn't change anything at all in the page allocation path > apart from renaming lots of things, does it? > > AFAICT all it does is to change the default values in the protection map. > It does it via a simplification, which is nice, but I can't see how it > fixes anything. > > Confused.
It does turn on lowmem protection by default. We never reached an agreement about doing this though, but Andrea has shown that it fixes trivial OOM cases. I think it should be turned on by default. I can't recall what your reservations were...? - 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/
