Re: [PATCH] vfs: keep inodes with page cache off the inode shrinker LRU

From: Arnd Bergmann
Date: Sat Feb 15 2020 - 11:59:25 EST


On Sat, Feb 15, 2020 at 12:25 PM Geert Uytterhoeven
<geert@xxxxxxxxxxxxxx> wrote:
> On Thu, Feb 13, 2020 at 5:54 PM Arnd Bergmann <arnd@xxxxxxxx> wrote:
> > On Wed, Feb 12, 2020 at 9:50 AM Russell King - ARM Linux admin
> > <linux@xxxxxxxxxxxxxxx> wrote:
>
> The CIP-supported RZ/G1 SoCs can have up to 4 GiB, typically split (even
> for 1 GiB or 2 GiB configurations) in two parts, one below and one above
> the 32-bit physical limit.

Good to know. I think there are several other chips that have dual-channel
DDR3 and thus /can/ support this configuration, but this rarely happens.
Are you aware of commercial products that use a 4GB configuration, aside from
the reference board?

For TI AM54x, there is apparently a variant of the Dragonbox Pyro with 4G,
which is said to be shipping in the near future, see
https://en.wikipedia.org/wiki/DragonBox_Pyra

Arnd