linux-kernel - Re: stable: commit "cpuidle: menu: Avoid discarding useful information" causes regressions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ns2dglxkdqiidj445xal2w4onk56njkzllgoads377oaix7wuh@afvq7yinhpl7>
Date: Tue, 14 Oct 2025 22:56:32 +0900
From: Sergey Senozhatsky <senozhatsky@...omium.org>
To: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: Sergey Senozhatsky <senozhatsky@...omium.org>, 
	Christian Loehle <christian.loehle@....com>, "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>, 
	Sasha Levin <sashal@...nel.org>, Daniel Lezcano <daniel.lezcano@...aro.org>, 
	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, Tomasz Figa <tfiga@...omium.org>, 
	stable@...r.kernel.org
Subject: Re: stable: commit "cpuidle: menu: Avoid discarding useful
 information" causes regressions

On (25/10/14 15:47), Rafael J. Wysocki wrote:
> On Tue, Oct 14, 2025 at 12:23 PM Sergey Senozhatsky
> <senozhatsky@...omium.org> wrote:
> >
> > > Any details would be much appreciated.
> > > How do the idle state usages differ with and without
> > > "cpuidle: menu: Avoid discarding useful information"?
> > > What do the idle states look like in your platform?
> >
> > Sure, I can run tests.
> 
> Would it be possible to check if the mainline has this issue?  That
> is, compare the benchmark results on unmodified 6.17 (say) and on 6.17
> with commit 85975daeaa4 reverted?

I don't think mainline kernel can run on those devices (due to
a bunch of downstream patches).  Best bet is 6.12, I guess.