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Message-ID: <a7c155ed-71fc-4ed9-a8c8-f98024b74651@draconx.ca>
Date: Fri, 29 Mar 2024 16:11:06 -0400
From: Nick Bowler <nbowler@...conx.ca>
To: Sam Ravnborg <sam@...nborg.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
linux-kernel@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
sparclinux@...r.kernel.org, Andreas Larsson <andreas@...sler.com>,
Linux regressions mailing list <regressions@...ts.linux.dev>
Subject: Re: PROBLEM: Only one CPU active on Ultra 60 since ~4.8 (regression)
Hi Sam,
On 2024-03-29 05:44, Sam Ravnborg wrote:
> I took a look at this and may have a fix. Could you try the following
> patch. It builds - but I have not tested it.
With this patch applied on top of 6.9-rc1, both CPUs appear to come up:
% cat /proc/cpuinfo
[...]
ncpus probed : 2
ncpus active : 2
[...]
State:
CPU0: online
CPU2: online
Thanks,
Nick
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