Re: Linux 5.9-rc7 / VmallocTotal wrongly reported | Patch OK

From: Bastian Bittorf
Date: Fri Oct 02 2020 - 03:06:26 EST


On Thu, Oct 01, 2020 at 01:39:31PM -0700, Roman Gushchin wrote:
> > # Processor type and features
> > #
> > # CONFIG_ZONE_DMA is not set
> > # CONFIG_SMP is not set
>
> Yes, here is the deal.
>
> The SMP-version of __mod_node_page_state() converts a passed value from bytes
> to pages, but the non-SMP doesn't.
>
> Thanks!
>
> --
>
> From 3d0233b37340c78012b991d3570b92f91cf5ebd2 Mon Sep 17 00:00:00 2001
> From: Roman Gushchin <guro@xxxxxx>
> Date: Thu, 1 Oct 2020 13:07:49 -0700
> Subject: [PATCH] mm: memcg/slab: fix slab statistics in !SMP configuration


I manually applied your patch and
this fixes to issue on my side too:

/ # free
total used free shared buff/cache available
Mem: 122176 2484 114848 0 4844
113228
Swap: 0 0 0

/ # uname -a
Linux (none) 5.9.0-rc7 #1 Fri Oct 2 08:50:59 CEST 2020 x86_64 GNU/Linux
/ #

Thanks a lot and sorry for the delay (my bisecting was too slow),
bye Bastian Bittorf