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([2601:188:c180:4250:ecbe:130d:668d:951d]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-720add668bdsm15895626d6.33.2025.09.02.11.47.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 02 Sep 2025 11:47:08 -0700 (PDT) From: Waiman Long X-Google-Original-From: Waiman Long Message-ID: <530b6d8f-8987-4fd7-9add-eed0a823b411@redhat.com> Date: Tue, 2 Sep 2025 14:47:07 -0400 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: next-20250805: ampere: WARNING: kernel/cgroup/cpuset.c:1352 at remote_partition_disable To: Naresh Kamboju , =?UTF-8?Q?Michal_Koutn=C3=BD?= Cc: Cgroups , "open list:KERNEL SELFTEST FRAMEWORK" , open list , lkft-triage@lists.linaro.org, Linux Regressions , Tejun Heo , Johannes Weiner , Dan Carpenter , Anders Roxell , Arnd Bergmann , kamalesh.babulal@oracle.com References: Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 9/2/25 6:58 AM, Naresh Kamboju wrote: > On Tue, 26 Aug 2025 at 19:56, Michal Koutný wrote: >> Hi. >> >> On Thu, Aug 07, 2025 at 01:57:34PM +0530, Naresh Kamboju 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. If this problem hasn't been seen again after next-20250805, it is probably caused by a bug in one of the new commits that has since been fixed. We are not going to look further into this until it is reproduced again. Cheers, Longman