linux-kernel - Re: Kernel 5.9-rc regression.

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Date:   Thu, 1 Oct 2020 23:55:48 +0200
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     Zhou Yanjie <zhouyanjie@...yeetech.com>
Cc:     "open list:MIPS" <linux-mips@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Kernel 5.9-rc regression.

On Fri, Oct 02, 2020 at 04:15:43AM +0800, Zhou Yanjie wrote:
> Hi Thomas and list,
> 
> There is a strange phenomenon in kernel 5.9-rc: when using kernel 5.9-rc
> with debian 10 and running htop, the memory footprint will be displayed as
> 3.99T. When the actual memory footprint increases, the displayed value will
> be reduced to 3.98T, 3.97T etc. These phenomena have been confirmed in
> X1000, X1830, and JZ4780 (disable SMP), this phenomenon does not seem to
> affect the SMP processor. When the JZ4780 turn on SMP, the memory footprint
> will be displayed normally.

try this fix

https://lore.kernel.org/lkml/20201001203931.GD2706729@carbon.DHCP.thefacebook.com/

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]