linux-kernel - Re: Does Linux still support UP?

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Message-ID: <ZYVYSBKhc-uvO8_o@archie.me>
Date: Fri, 22 Dec 2023 16:35:04 +0700
From: Bagas Sanjaya <bagasdotme@...il.com>
To: Chris Rankin <rankincj@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Regressions <regressions@...ts.linux.dev>,
	Linux Networking <netdev@...r.kernel.org>
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	David Ahern <dsahern@...nel.org>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	Yue Haibing <yuehaibing@...wei.com>,
	Leon Romanovsky <leon@...nel.org>,
	Qingfang DENG <qingfang.deng@...lower.com.cn>
Subject: Re: Does Linux still support UP?

[also Cc: netdev folks and get_maintainer output for include/net/neighbour.h]

On Thu, Dec 21, 2023 at 11:12:34PM +0000, Chris Rankin wrote:
> Hi,
> 
> I have an ancient i586 UP machine that happily runs vanilla Linux
> 6.4.16, but which locks up shortly after booting vanilla 6.5.0. The
> kernel *seems* to run into trouble as soon as the networking layer
> becomes busy. However, its SysRq-S/U/B sequence still seems to work as
> expected and so obviously *something* is still responding somewhere.
> 
> This problem still exists in vanilla 6.6.8.
> 
> FWIW I have raised this bug in bugzilla:
> https://bugzilla.kernel.org/show_bug.cgi?id=218296
> 

To be honest, you need to bisect. For reference, see
Documentation/admin-guide/bug-bisect.rst in the kernel sources.
Since you have problem with your old machine, you may want to compile
the kernel (which is a prerequisite for bisection) on faster machine,
then transfer the kernel image + modules into your old machine to
be installed there. Without bisection, no one will look into this
regression.

Thanks.

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

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