linux-kernel - Re: next-20250805: ampere: WARNING: kernel/cgroup/cpuset.c:1352 at remote_partition

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Message-ID: <CA+G9fYvA=945et87Q=_c6b-TWjSBxy4H-X9iNsb1_Pj9GCXUaw@mail.gmail.com>
Date: Tue, 2 Sep 2025 16:28:12 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: Michal Koutný <mkoutny@...e.com>
Cc: Cgroups <cgroups@...r.kernel.org>, 
	"open list:KERNEL SELFTEST FRAMEWORK" <linux-kselftest@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>, 
	lkft-triage@...ts.linaro.org, Linux Regressions <regressions@...ts.linux.dev>, 
	Tejun Heo <tj@...nel.org>, Johannes Weiner <hannes@...xchg.org>, 
	Dan Carpenter <dan.carpenter@...aro.org>, Anders Roxell <anders.roxell@...aro.org>, 
	Arnd Bergmann <arnd@...db.de>, kamalesh.babulal@...cle.com
Subject: Re: next-20250805: ampere: WARNING: kernel/cgroup/cpuset.c:1352 at remote_partition_disable

On Tue, 26 Aug 2025 at 19:56, Michal Koutný <mkoutny@...e.com> wrote:
>
> Hi.
>
> On Thu, Aug 07, 2025 at 01:57:34PM +0530, Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
> > Regressions noticed intermittently on AmpereOne while running selftest
> > cgroup testing
> > with Linux next-20250805 and earlier seen on next-20250722 tag also.
> >
> > Regression Analysis:
> > - New regression? Yes
> > - Reproducibility? Intermittent
> >
> > First seen on the next-20250722 and after next-20250805.
>
> Naresh, can you determine also the last good revision? That would be
> ideal to have some endpoints for bisection. (To look for any interacting
> changes that Waiman was getting at.)

Michal,
Since this was an intermittent issue, I do not have a good end point
of the bisection.

As I repeat,
First seen on the next-20250722 and after next-20250805
and not seen after this.

Reference:
- https://regressions.linaro.org/lkft/linux-next-master-ampere/next-20250805/log-parser-test/exception-warning-kernelcgroupcpuset-at-remote_partition_disable/history/?page=1

- Naresh

>
> Thanks,
> Michal