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Wed, 25 Jun 2025 14:03:26 +0000 Message-ID: Date: Wed, 25 Jun 2025 16:03:19 +0200 User-Agent: Mozilla Thunderbird Subject: Re: [Intel-wired-lan] Increased memory usage on NUMA nodes with ICE driver after upgrade to 6.13.y (regression in commit 492a044508ad) To: Jaroslav Pulchart , "intel-wired-lan@lists.osuosl.org" CC: "Keller, Jacob E" , Jakub Kicinski , "Damato, Joe" , "netdev@vger.kernel.org" , "Nguyen, Anthony L" , Michal Swiatkowski , "Czapnik, Lukasz" , "Dumazet, Eric" , "Zaki, Ahmed" , Martin Karsten , "Igor Raits" , Daniel Secik , "Zdenek Pesek" References: <4a061a51-8a6c-42b8-9957-66073b4bc65f@intel.com> <20250415175359.3c6117c9@kernel.org> <20250416064852.39fd4b8f@kernel.org> <20250416171311.30b76ec1@kernel.org> From: Przemek Kitszel Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-ClientProxiedBy: DU7PR01CA0013.eurprd01.prod.exchangelabs.com (2603:10a6:10:50f::8) To MN6PR11MB8102.namprd11.prod.outlook.com (2603:10b6:208:46d::9) Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MN6PR11MB8102:EE_|DS7PR11MB6150:EE_ X-MS-Office365-Filtering-Correlation-Id: dcaf1434-40d3-4a59-9f14-08ddb3f10e45 X-LD-Processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|7416014|366016|7053199007; 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We have identified some (unrelated) memory leaks, will soon ship fixes. And, as there were no clear issue with any commit/version you have posted to be a culprit, there is a chance that our random findings could help. Anyway going to zero kmemleak reports is good in itself, that is a good start. Will ask my VAL too to increase efforts in this area too. Przemek > > st 4. 6. 2025 v 10:42 odesílatel Jaroslav Pulchart > > > napsal: > > > > > čt 17. 4. 2025 v 19:52 odesílatel Keller, Jacob E > > > napsal: > > > > > > > > > > > > > -----Original Message----- > > > > From: Jakub Kicinski > > > > > Sent: Wednesday, April 16, 2025 5:13 PM > > > > To: Keller, Jacob E > > > > > Cc: Jaroslav Pulchart >; Kitszel, Przemyslaw > > > > >; Damato, Joe > >; intel-wired- > > > > lan@lists.osuosl.org ; > netdev@vger.kernel.org ; Nguyen, > Anthony L > > > > >; Igor Raits >; Daniel Secik > > > > >; Zdenek Pesek > >; > > > > Dumazet, Eric >; Martin Karsten > > > > >; Zaki, > Ahmed >; Czapnik, > > > > Lukasz >; Michal Swiatkowski > > > > > > > > > Subject: Re: [Intel-wired-lan] Increased memory usage on NUMA > nodes with ICE > > > > driver after upgrade to 6.13.y (regression in commit > 492a044508ad) > > > > > > > > On Wed, 16 Apr 2025 22:57:10 +0000 Keller, Jacob E wrote: > > > > > > > And you're reverting just and exactly 492a044508ad13 ? > > > > > > > The memory for persistent config is allocated in > alloc_netdev_mqs() > > > > > > > unconditionally. I'm lost as to how this commit could > make any > > > > > > > difference :( > > > > > > > > > > > > Yes, reverted the 492a044508ad13. > > > > > > > > > > Struct napi_config *is* 1056 bytes > > > > > > > > You're probably looking at 6.15-rcX kernels. Yes, the > affinity mask > > > > can be large depending on the kernel config. But report is > for 6.13, > > > > AFAIU. In 6.13 and 6.14 napi_config was tiny. > > > > > > Regardless, it should still be ~64KB even in that case which is > a far cry from eating all available memory. Something else must be > going on.... > > > > > > Thanks, > > > Jake > > > > Hello > > > > Some observation, this "problem" still exists with the latest 6.14.y > > and there must be multiple issues, the memory utilization is slowly > > going down, from 3GB to 100MB in 10-20days. at home NUMA nodes where > > intel x810 NIC are (looks like some memory leak related to > > networking). > > > > So without the revert the kawadX usage is observed asap like till > > 1-2d, with revert of mentioned commit kswadX starts to consume > > resources later like in ~10d-20d later. It is almost impossible > to use > > servers with Intel X810 cards (ice driver) with recent linux kernels. > > > > Were you able to reproduce the memory problems in your testbed? > > > > Best, > > Jaroslav > > Hello > > I deployed linux 6.15.0 to our servers 7d ago and observed the > behaviour of memory utilization of NUMA home nodes of Intel X810 > 1/ there is no need to revert the commit as before, > 2/ the memory is continuously consumed (like memory leak), > see attached "7d_memory_usage_per_numa_linux6.15.0.png" screenshot 8x > numa nodes, (NUMA0 + NUMA1 are local for X810 nics). BTW: We do not > see this memory utilization pattern on server s using Broadcom > Netxtreme-E NICs > > > > -- > Jaroslav Pulchart > Sr. Principal SW Engineer > GoodData