linux-kernel - Re: proposition for fixing Y292B bug

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Message-ID: <ZoJx5GaBDHg7nayw@archie.me>
Date: Mon, 1 Jul 2024 16:07:48 +0700
From: Bagas Sanjaya <bagasdotme@...il.com>
To: David Polakovic <email@...lakovic.space>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc: Theodore Ts'o <tytso@....edu>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Alexander Lobakin <alexandr.lobakin@...el.com>,
	Jakub Kicinski <kuba@...nel.org>
Subject: Re: proposition for fixing Y292B bug

On Sun, Jun 30, 2024 at 05:27:24PM +0200, David Polakovic wrote:
> Thanks for reply.

Please don't top-post on LKML, reply inline with appropriate context
instead.

> 
> My proposed solution was to create this BigInt datatype, which
> stores the value in array. The functions for division, multiplication,
> addition, subtraction and comparison could be stored in separate
> ".h" library for manipulation with BigInt datatype. The paper speaks
> more in detail.
> 
> And yes, this truly is an userspace solution, but for kernel space
> implementation I have zero to none experience. Therefore I wrote
> here.

There was a proposal for adding 128-bit unsigned integer (see [1]).
The signed counterpart should be analogous.

Thanks.

[1]: https://lore.kernel.org/lkml/20220722145514.767592-1-alexandr.lobakin@intel.com/

-- 
An old man doll... just what I always wanted! - Clara

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