linux-kernel - Re: [PATCH v9 00/24] x86/resctrl: monitored closid+rmid together, separate arch/fs locking

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Message-ID: <3c132975-a516-4386-8b60-35b5f600f1ab@intel.com>
Date: Wed, 21 Feb 2024 08:48:46 -0800
From: Reinette Chatre <reinette.chatre@...el.com>
To: James Morse <james.morse@....com>, Tony Luck <tony.luck@...el.com>,
	"Thomas Gleixner" <tglx@...utronix.de>
CC: Borislav Petkov <bp@...en8.de>, <x86@...nel.org>,
	<linux-kernel@...r.kernel.org>, Fenghua Yu <fenghua.yu@...el.com>, "Ingo
 Molnar" <mingo@...hat.com>, H Peter Anvin <hpa@...or.com>, Babu Moger
	<Babu.Moger@....com>, <shameerali.kolothum.thodi@...wei.com>, "D Scott
 Phillips OS" <scott@...amperecomputing.com>, <carl@...amperecomputing.com>,
	<lcherian@...vell.com>, <bobo.shaobowang@...wei.com>,
	<tan.shaopeng@...itsu.com>, <baolin.wang@...ux.alibaba.com>, Jamie Iles
	<quic_jiles@...cinc.com>, Xin Hao <xhao@...ux.alibaba.com>,
	<peternewman@...gle.com>, <dfustini@...libre.com>, <amitsinght@...vell.com>,
	David Hildenbrand <david@...hat.com>
Subject: Re: [PATCH v9 00/24] x86/resctrl: monitored closid+rmid together,
 separate arch/fs locking

Hi James,

On 2/21/2024 4:06 AM, James Morse wrote:
> Hi Tony, Reinette,
> 
> On 20/02/2024 22:58, Reinette Chatre wrote:
>> On 2/20/2024 12:59 PM, Tony Luck wrote:
>>> On Mon, Feb 19, 2024 at 05:49:29PM +0100, Thomas Gleixner wrote:
>>>> On Sat, Feb 17 2024 at 11:55, Borislav Petkov wrote:
>>>>
>>>>> On Tue, Feb 13, 2024 at 06:44:14PM +0000, James Morse wrote:
>>>>>> Hello!
>>>>>>
>>>>>> It's been back and forth for whether this series should be rebased onto Tony's
>>>>>> SNC series. This version isn't, its based on tip/x86/cache.
>>>>>> (I have the rebased-and-tested versions if anyone needs them)
>>>>>
>>>>> The set applied ontop of tip:x86/cache gives:
> 
>>> Testing tip x86/cache that WARN fires while running
>>> tools/tests/selftests/resctrl/resctrl_test.
> 
> I evidently need to build a newer version of that tool.

There has been a lot of changes in the last few cycles. You can find the
latest version on the "next" branch of the kselftest repo [1] where most recent
enhancements are queued up for inclusion. If you are interested, there is one
more series [2] pending merge to the kselftest repo, it adds a new test for
the recent non-contiguous CBM support.

Reinette

[1] git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git
[2] https://lore.kernel.org/lkml/cover.1708072203.git.maciej.wieczor-retman@intel.com/