linux-kernel - Does Linux still support UP?

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Message-ID: <CAK2bqVKCdaD6-PZi6gXhf=9CiKGhxQM_UHyKV_onzDPnhbAmvw@mail.gmail.com>
Date: Thu, 21 Dec 2023 23:12:34 +0000
From: Chris Rankin <rankincj@...il.com>
To: LKML <linux-kernel@...r.kernel.org>
Cc: netdev@...r.kernel.org
Subject: Does Linux still support UP?

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

Thanks for any help here,
Cheers,
Chris