From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?unknown-8bit?q?Pawe=C5=82?= Staszewski Date: Thu, 19 Oct 2017 00:20:33 +0200 Subject: [Intel-wired-lan] Linux 4.12+ memory leak on router with i40e NICs In-Reply-To: <748b6d9d-4a3f-4eaa-ad24-27060c2e2642@itcare.pl> References: <1507121766.30720.4.camel@cohaesio.com> <1507180753.20182.8.camel@cohaesio.com> <227d17ae-b040-07d0-3c57-e9acd1a3b5b4@itcare.pl> <3d783736-a474-d9e3-2de2-e35c765f8249@itcare.pl> <39696136-2a4a-9c6c-3a63-4485ed2a1bf3@itcare.pl> <310ce203-0d65-bdf4-d9e4-897a349b3277@itcare.pl> <1704eb26-c4c5-b196-ca7a-5265e92ae4e6@itcare.pl> <7fd828d7-c586-2c32-3ba6-e0575bf9958c@itcare.pl> <99eba19f-327e-e01f-4f4a-87540b176e40@itcare.pl> <748b6d9d-4a3f-4eaa-ad24-27060c2e2642@itcare.pl> Message-ID: <16c9fa34-252f-e5a3-8b15-e5a8c4d8a46f@itcare.pl> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: intel-wired-lan@osuosl.org List-ID: W dniu 2017-10-18 o?17:44, Pawe? Staszewski pisze: > > > W dniu 2017-10-17 o?16:08, Pawe? Staszewski pisze: >> >> >> W dniu 2017-10-17 o?13:52, Pawe? Staszewski pisze: >>> >>> >>> W dniu 2017-10-17 o?13:05, Pawe? Staszewski pisze: >>>> >>>> >>>> W dniu 2017-10-17 o?12:59, Pawe? Staszewski pisze: >>>>> >>>>> >>>>> W dniu 2017-10-17 o?12:51, Pawe? Staszewski pisze: >>>>>> >>>>>> >>>>>> W dniu 2017-10-17 o?12:20, Pawe? Staszewski pisze: >>>>>>> >>>>>>> >>>>>>> W dniu 2017-10-17 o?11:48, Pawe? Staszewski pisze: >>>>>>>> >>>>>>>> >>>>>>>> W dniu 2017-10-17 o?02:44, Pawe? Staszewski pisze: >>>>>>>>> >>>>>>>>> >>>>>>>>> W dniu 2017-10-17 o?01:56, Alexander Duyck pisze: >>>>>>>>>> On Mon, Oct 16, 2017 at 4:34 PM, Pawe? Staszewski >>>>>>>>>> wrote: >>>>>>>>>>> >>>>>>>>>>> W dniu 2017-10-16 o 18:26, Pawe? Staszewski pisze: >>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> W dniu 2017-10-16 o 13:20, Pavlos Parissis pisze: >>>>>>>>>>>>> On 15/10/2017 02:58 ??, Alexander Duyck wrote: >>>>>>>>>>>>>> Hi Pawel, >>>>>>>>>>>>>> >>>>>>>>>>>>>> To clarify is that Dave Miller's tree or Linus's that you >>>>>>>>>>>>>> are talking >>>>>>>>>>>>>> about? If it is Dave's tree how long ago was it you >>>>>>>>>>>>>> pulled it since I >>>>>>>>>>>>>> think the fix was just pushed by Jeff Kirsher a few days >>>>>>>>>>>>>> ago. >>>>>>>>>>>>>> >>>>>>>>>>>>>> The issue should be fixed in the following commit: >>>>>>>>>>>>>> >>>>>>>>>>>>>> https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/drivers/net/ethernet/intel/i40e/i40e_txrx.c?id=2b9478ffc550f17c6cd8c69057234e91150f5972 >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>> Do you know when it is going to be available on net-next >>>>>>>>>>>>> and linux-stable >>>>>>>>>>>>> repos? >>>>>>>>>>>>> >>>>>>>>>>>>> Cheers, >>>>>>>>>>>>> Pavlos >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>> I will make some tests today night with "net" git tree >>>>>>>>>>>> where this patch is >>>>>>>>>>>> included. >>>>>>>>>>>> Starting from 0:00 CET >>>>>>>>>>>> :) >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>> Upgraded and looks like problem is not solved with that patch >>>>>>>>>>> Currently running system with >>>>>>>>>>> https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/ >>>>>>>>>>> kernel >>>>>>>>>>> >>>>>>>>>>> Still about 0.5GB of memory is leaking somewhere >>>>>>>>>>> >>>>>>>>>>> Also can confirm that the latest kernel where memory is not >>>>>>>>>>> leaking (with >>>>>>>>>>> use i40e driver intel 710 cards) is 4.11.12 >>>>>>>>>>> With kernel 4.11.12 - after hour no change in memory usage. >>>>>>>>>>> >>>>>>>>>>> also checked that with ixgbe instead of i40e with same >>>>>>>>>>> net.git kernel there >>>>>>>>>>> is no memleak - after hour same memory usage - so for 100% >>>>>>>>>>> this is i40e >>>>>>>>>>> driver problem. >>>>>>>>>> So how long was the run to get the .5GB of memory leaking? >>>>>>>>> 1 hour >>>>>>>>> >>>>>>>>>> >>>>>>>>>> Also is there any chance of you being able to bisect to >>>>>>>>>> determine >>>>>>>>>> where the memory leak was introduced since as you pointed out it >>>>>>>>>> didn't exist in 4.11.12 so odds are it was introduced somewhere >>>>>>>>>> between 4.11 and the latest kernel release. >>>>>>>>> Can be hard cause currently need to back to 4.11.12 - this is >>>>>>>>> production host/router >>>>>>>>> Will try to find some free/test router for tests/bicects with >>>>>>>>> i40e driver (intel 710 cards) >>>>>>>>> >>>>>>>>>> >>>>>>>>>> Thanks. >>>>>>>>>> >>>>>>>>>> - Alex >>>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>> Also forgoto to add errors for i40e when driver initialize: >>>>>>>> [?? 15.760569] i40e 0000:02:00.1: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [?? 16.365587] i40e 0000:03:00.3: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [?? 16.367686] i40e 0000:02:00.2: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [?? 16.368816] i40e 0000:03:00.0: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [?? 16.369877] i40e 0000:03:00.2: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [?? 16.370941] i40e 0000:02:00.3: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [?? 16.372005] i40e 0000:02:00.0: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [?? 16.373029] i40e 0000:03:00.1: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> >>>>>>>> some params that are set for this nic's >>>>>>>> ??????? ip link set up dev $i >>>>>>>> ??????? ethtool -A $i autoneg off rx off tx off >>>>>>>> ??????? ethtool -G $i rx 1024 tx 2048 >>>>>>>> ??????? ip link set $i txqueuelen 1000 >>>>>>>> ??????? ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs >>>>>>>> 512 tx-usecs 128 >>>>>>>> ??????? ethtool -L $i combined 6 >>>>>>>> ??????? #ethtool -N $i rx-flow-hash udp4 sdfn >>>>>>>> ??????? ethtool -K $i ntuple on >>>>>>>> ??????? ethtool -K $i gro off >>>>>>>> ??????? ethtool -K $i tso off >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> Also after TSO/GRO on there is memory usage change - and leaking >>>>>>> faster >>>>>>> Below image from memory usage before change with TSO/GRO OFF and >>>>>>> after enabling TSO/GRO >>>>>>> >>>>>>> https://ibb.co/dTqBY6 >>>>>>> >>>>>>> >>>>>>> Thanks >>>>>>> Pawel >>>>>>> >>>>>>> >>>>>>> >>>>>> With settings like this: >>>>>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 >>>>>> enp3s0f2 enp3s0f3' >>>>>> for i in $ifc >>>>>> ??????? do >>>>>> ??????? ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs >>>>>> 512 tx-usecs 128 >>>>>> ??????? ethtool -K $i gro on >>>>>> ??????? ethtool -K $i tso on >>>>>> >>>>>> ??????? done >>>>>> >>>>>> Server is leaking about 4-6MB per each 10 seconds >>>>>> MEMLEAK: >>>>>> 5? MB/10sec >>>>>> 6? MB/10sec >>>>>> 4? MB/10sec >>>>>> 4? MB/10sec >>>>>> >>>>>> >>>>>> Other settings TSO/GRO off >>>>>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 >>>>>> enp3s0f2 enp3s0f3' >>>>>> for i in $ifc >>>>>> ??????? do >>>>>> ??????? ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs >>>>>> 512 tx-usecs 128 >>>>>> ??????? ethtool -K $i gro off >>>>>> ??????? ethtool -K $i tso off >>>>>> >>>>>> ??????? done >>>>>> >>>>>> Same leak about 5MB per 10 seconds >>>>>> MEMLEAK: >>>>>> 5? MB/10sec >>>>>> 5? MB/10sec >>>>>> 5? MB/10sec >>>>>> >>>>>> >>>>>> Other settings rx-usecs change from 512 to 1024: >>>>>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 >>>>>> enp3s0f2 enp3s0f3' >>>>>> for i in $ifc >>>>>> ??????? do >>>>>> ??????? ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs >>>>>> 1024 tx-usecs 128 >>>>>> ??????? ethtool -K $i gro off >>>>>> ??????? ethtool -K $i tso off >>>>>> >>>>>> ??????? done >>>>>> >>>>>> MEMLEAK: >>>>>> 4? MB/10sec >>>>>> 3? MB/10sec >>>>>> 4? MB/10sec >>>>>> 4? MB/10sec >>>>>> >>>>>> >>>>>> So memleak have something to do with rx-usecs (less interrupts >>>>>> but bigger latency for traffic) >>>>>> >>>>>> >>>>>> But also enabling TSO/GRO making leak about 1MB bigger for each >>>>>> 10 seconds >>>>>> >>>>>> >>>>>> >>>>> So far best config is: >>>>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 >>>>> enp3s0f2 enp3s0f3' >>>>> for i in $ifc >>>>> ??????? do >>>>> ??????? ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs 64 >>>>> tx-usecs 512 >>>>> ??????? ethtool -K $i gro off >>>>> ??????? ethtool -K $i tso on >>>>> >>>>> ??????? done >>>>> >>>>> MEMLEAK - about 2MB/10secs >>>>> 2? MB/10sec >>>>> 2? MB/10sec >>>>> 2? MB/10sec >>>>> >>>>> >>>>> With - rx-usecs set to 256 (about 7-9MB/10secs memleak) >>>>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 >>>>> enp3s0f2 enp3s0f3' >>>>> for i in $ifc >>>>> ??????? do >>>>> ??????? ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs 256 >>>>> tx-usecs 512 >>>>> ??????? ethtool -K $i gro off >>>>> ??????? ethtool -K $i tso on >>>>> >>>>> ??????? done >>>>> >>>>> MEMLEAK: >>>>> 7? MB/10sec >>>>> 7? MB/10sec >>>>> 8? MB/10sec >>>>> 9? MB/10sec >>>>> >>>>> >>>> >>>> And even less memleak with rx-usecs set to 32 >>>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 enp3s0f2 >>>> enp3s0f3' >>>> for i in $ifc >>>> ??????? do >>>> ??????? ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs 32 >>>> tx-usecs 512 >>>> ??????? ethtool -K $i gro off >>>> ??????? ethtool -K $i tso on >>>> >>>> ??????? done >>>> >>>> >>>> MEMLEAK - about 0-2MB for each 10 seconds >>>> 0? MB/10sec >>>> 1? MB/10sec >>>> 0? MB/10sec >>>> 2? MB/10sec >>>> 1? MB/10sec >>>> >>>> >>>> >>> >>> >>> So best settings - to have as less leak as possible for now >>> (rx-usecs set to 16): >>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 enp3s0f2 >>> enp3s0f3' >>> for i in $ifc >>> ??????? do >>> ??????? ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs 16 >>> tx-usecs 768 >>> ??????? ethtool -K $i gro on >>> ??????? ethtool -K $i tso on >>> >>> ??????? done >>> >>> >>> MEMLEAK: (0-1MB/10seconds) >>> 0? MB/10sec >>> 0? MB/10sec >>> 0? MB/10sec >>> 1? MB/10sec >>> 1? MB/10sec >>> -1? MB/10sec >>> 1? MB/10sec >>> 1? MB/10sec >>> 0? MB/10sec >>> >>> (there are some memory recycles - so this is good :) ) >>> >>> >>> >>> Compared to(rx-usecs 512): >>> >>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 enp3s0f2 >>> enp3s0f3' >>> for i in $ifc >>> ??????? do >>> ??????? ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs 512 >>> tx-usecs 128 >>> ??????? ethtool -K $i gro on >>> ??????? ethtool -K $i tso on >>> >>> ??????? done >>> >>> Server is leaking about 4-6MB per each 10 seconds >>> MEMLEAK: >>> 5? MB/10sec >>> 6? MB/10sec >>> 4? MB/10sec >>> 4? MB/10sec >>> >>> >> >> And? graph where all changes for rx-usecs was done over some time: >> https://ibb.co/nrRfbR >> >> >> >> >> > Cant eliminate the problem with settings - memleak is bigger or less > visible with rx-usecs set to low values - but then have 100% cpu load > - cant have rx-usecs set to 16 > > Cant find also other host with same cards or that are using i40e > driver for tests with bisecting > So will just replace to mellanox :) > > Also after fresh reboot with i40e startup settings: ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 enp3s0f2 enp3s0f3' for i in $ifc ??????? do ??????? ip link set up dev $i ??????? ethtool -A $i autoneg off rx off tx off ??????? ethtool -G $i rx 2048 tx 2048 ??????? ip link set $i txqueuelen 1000 ??????? #ethtool -C $i rx-usecs 256 ??????? ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs 17 tx-usecs 125 ??????? ethtool -L $i combined 6 ??????? #ethtool -N $i rx-flow-hash udp4 sdfn ??????? #ethtool -K $i ntuple on ??????? #ethtool -K $i gro off ??????? #ethtool -K $i tso off ??????? done After issuing: ?ethtool -K enp2s0f0 gro on tso on dmesg shows [35764.338259] i40e 0000:02:00.0: PF reset failed, -15 and no traffic on the card :) From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?Q?Pawe=c5=82_Staszewski?= Subject: Re: Linux 4.12+ memory leak on router with i40e NICs Date: Thu, 19 Oct 2017 00:20:33 +0200 Message-ID: <16c9fa34-252f-e5a3-8b15-e5a8c4d8a46f@itcare.pl> References: <1507121766.30720.4.camel@cohaesio.com> <1507180753.20182.8.camel@cohaesio.com> <227d17ae-b040-07d0-3c57-e9acd1a3b5b4@itcare.pl> <3d783736-a474-d9e3-2de2-e35c765f8249@itcare.pl> <39696136-2a4a-9c6c-3a63-4485ed2a1bf3@itcare.pl> <310ce203-0d65-bdf4-d9e4-897a349b3277@itcare.pl> <1704eb26-c4c5-b196-ca7a-5265e92ae4e6@itcare.pl> <7fd828d7-c586-2c32-3ba6-e0575bf9958c@itcare.pl> <99eba19f-327e-e01f-4f4a-87540b176e40@itcare.pl> <748b6d9d-4a3f-4eaa-ad24-27060c2e2642@itcare.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Cc: Pavlos Parissis , "Anders K. Pedersen | Cohaesio" , "netdev@vger.kernel.org" , "intel-wired-lan@lists.osuosl.org" , "alexander.h.duyck@intel.com" To: Alexander Duyck Return-path: Received: from smtp52.iq.pl ([86.111.240.252]:35987 "EHLO smtp52.iq.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750920AbdJRWUf (ORCPT ); Wed, 18 Oct 2017 18:20:35 -0400 In-Reply-To: <748b6d9d-4a3f-4eaa-ad24-27060c2e2642@itcare.pl> Content-Language: pl Sender: netdev-owner@vger.kernel.org List-ID: W dniu 2017-10-18 o 17:44, Paweł Staszewski pisze: > > > W dniu 2017-10-17 o 16:08, Paweł Staszewski pisze: >> >> >> W dniu 2017-10-17 o 13:52, Paweł Staszewski pisze: >>> >>> >>> W dniu 2017-10-17 o 13:05, Paweł Staszewski pisze: >>>> >>>> >>>> W dniu 2017-10-17 o 12:59, Paweł Staszewski pisze: >>>>> >>>>> >>>>> W dniu 2017-10-17 o 12:51, Paweł Staszewski pisze: >>>>>> >>>>>> >>>>>> W dniu 2017-10-17 o 12:20, Paweł Staszewski pisze: >>>>>>> >>>>>>> >>>>>>> W dniu 2017-10-17 o 11:48, Paweł Staszewski pisze: >>>>>>>> >>>>>>>> >>>>>>>> W dniu 2017-10-17 o 02:44, Paweł Staszewski pisze: >>>>>>>>> >>>>>>>>> >>>>>>>>> W dniu 2017-10-17 o 01:56, Alexander Duyck pisze: >>>>>>>>>> On Mon, Oct 16, 2017 at 4:34 PM, Paweł Staszewski >>>>>>>>>> wrote: >>>>>>>>>>> >>>>>>>>>>> W dniu 2017-10-16 o 18:26, Paweł Staszewski pisze: >>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> W dniu 2017-10-16 o 13:20, Pavlos Parissis pisze: >>>>>>>>>>>>> On 15/10/2017 02:58 πμ, Alexander Duyck wrote: >>>>>>>>>>>>>> Hi Pawel, >>>>>>>>>>>>>> >>>>>>>>>>>>>> To clarify is that Dave Miller's tree or Linus's that you >>>>>>>>>>>>>> are talking >>>>>>>>>>>>>> about? If it is Dave's tree how long ago was it you >>>>>>>>>>>>>> pulled it since I >>>>>>>>>>>>>> think the fix was just pushed by Jeff Kirsher a few days >>>>>>>>>>>>>> ago. >>>>>>>>>>>>>> >>>>>>>>>>>>>> The issue should be fixed in the following commit: >>>>>>>>>>>>>> >>>>>>>>>>>>>> https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/drivers/net/ethernet/intel/i40e/i40e_txrx.c?id=2b9478ffc550f17c6cd8c69057234e91150f5972 >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>> Do you know when it is going to be available on net-next >>>>>>>>>>>>> and linux-stable >>>>>>>>>>>>> repos? >>>>>>>>>>>>> >>>>>>>>>>>>> Cheers, >>>>>>>>>>>>> Pavlos >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>> I will make some tests today night with "net" git tree >>>>>>>>>>>> where this patch is >>>>>>>>>>>> included. >>>>>>>>>>>> Starting from 0:00 CET >>>>>>>>>>>> :) >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>> Upgraded and looks like problem is not solved with that patch >>>>>>>>>>> Currently running system with >>>>>>>>>>> https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/ >>>>>>>>>>> kernel >>>>>>>>>>> >>>>>>>>>>> Still about 0.5GB of memory is leaking somewhere >>>>>>>>>>> >>>>>>>>>>> Also can confirm that the latest kernel where memory is not >>>>>>>>>>> leaking (with >>>>>>>>>>> use i40e driver intel 710 cards) is 4.11.12 >>>>>>>>>>> With kernel 4.11.12 - after hour no change in memory usage. >>>>>>>>>>> >>>>>>>>>>> also checked that with ixgbe instead of i40e with same >>>>>>>>>>> net.git kernel there >>>>>>>>>>> is no memleak - after hour same memory usage - so for 100% >>>>>>>>>>> this is i40e >>>>>>>>>>> driver problem. >>>>>>>>>> So how long was the run to get the .5GB of memory leaking? >>>>>>>>> 1 hour >>>>>>>>> >>>>>>>>>> >>>>>>>>>> Also is there any chance of you being able to bisect to >>>>>>>>>> determine >>>>>>>>>> where the memory leak was introduced since as you pointed out it >>>>>>>>>> didn't exist in 4.11.12 so odds are it was introduced somewhere >>>>>>>>>> between 4.11 and the latest kernel release. >>>>>>>>> Can be hard cause currently need to back to 4.11.12 - this is >>>>>>>>> production host/router >>>>>>>>> Will try to find some free/test router for tests/bicects with >>>>>>>>> i40e driver (intel 710 cards) >>>>>>>>> >>>>>>>>>> >>>>>>>>>> Thanks. >>>>>>>>>> >>>>>>>>>> - Alex >>>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>> Also forgoto to add errors for i40e when driver initialize: >>>>>>>> [   15.760569] i40e 0000:02:00.1: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [   16.365587] i40e 0000:03:00.3: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [   16.367686] i40e 0000:02:00.2: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [   16.368816] i40e 0000:03:00.0: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [   16.369877] i40e 0000:03:00.2: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [   16.370941] i40e 0000:02:00.3: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [   16.372005] i40e 0000:02:00.0: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> [   16.373029] i40e 0000:03:00.1: Error I40E_AQ_RC_ENOSPC >>>>>>>> adding RX filters on PF, promiscuous mode forced on >>>>>>>> >>>>>>>> some params that are set for this nic's >>>>>>>>         ip link set up dev $i >>>>>>>>         ethtool -A $i autoneg off rx off tx off >>>>>>>>         ethtool -G $i rx 1024 tx 2048 >>>>>>>>         ip link set $i txqueuelen 1000 >>>>>>>>         ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs >>>>>>>> 512 tx-usecs 128 >>>>>>>>         ethtool -L $i combined 6 >>>>>>>>         #ethtool -N $i rx-flow-hash udp4 sdfn >>>>>>>>         ethtool -K $i ntuple on >>>>>>>>         ethtool -K $i gro off >>>>>>>>         ethtool -K $i tso off >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> Also after TSO/GRO on there is memory usage change - and leaking >>>>>>> faster >>>>>>> Below image from memory usage before change with TSO/GRO OFF and >>>>>>> after enabling TSO/GRO >>>>>>> >>>>>>> https://ibb.co/dTqBY6 >>>>>>> >>>>>>> >>>>>>> Thanks >>>>>>> Pawel >>>>>>> >>>>>>> >>>>>>> >>>>>> With settings like this: >>>>>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 >>>>>> enp3s0f2 enp3s0f3' >>>>>> for i in $ifc >>>>>>         do >>>>>>         ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs >>>>>> 512 tx-usecs 128 >>>>>>         ethtool -K $i gro on >>>>>>         ethtool -K $i tso on >>>>>> >>>>>>         done >>>>>> >>>>>> Server is leaking about 4-6MB per each 10 seconds >>>>>> MEMLEAK: >>>>>> 5  MB/10sec >>>>>> 6  MB/10sec >>>>>> 4  MB/10sec >>>>>> 4  MB/10sec >>>>>> >>>>>> >>>>>> Other settings TSO/GRO off >>>>>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 >>>>>> enp3s0f2 enp3s0f3' >>>>>> for i in $ifc >>>>>>         do >>>>>>         ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs >>>>>> 512 tx-usecs 128 >>>>>>         ethtool -K $i gro off >>>>>>         ethtool -K $i tso off >>>>>> >>>>>>         done >>>>>> >>>>>> Same leak about 5MB per 10 seconds >>>>>> MEMLEAK: >>>>>> 5  MB/10sec >>>>>> 5  MB/10sec >>>>>> 5  MB/10sec >>>>>> >>>>>> >>>>>> Other settings rx-usecs change from 512 to 1024: >>>>>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 >>>>>> enp3s0f2 enp3s0f3' >>>>>> for i in $ifc >>>>>>         do >>>>>>         ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs >>>>>> 1024 tx-usecs 128 >>>>>>         ethtool -K $i gro off >>>>>>         ethtool -K $i tso off >>>>>> >>>>>>         done >>>>>> >>>>>> MEMLEAK: >>>>>> 4  MB/10sec >>>>>> 3  MB/10sec >>>>>> 4  MB/10sec >>>>>> 4  MB/10sec >>>>>> >>>>>> >>>>>> So memleak have something to do with rx-usecs (less interrupts >>>>>> but bigger latency for traffic) >>>>>> >>>>>> >>>>>> But also enabling TSO/GRO making leak about 1MB bigger for each >>>>>> 10 seconds >>>>>> >>>>>> >>>>>> >>>>> So far best config is: >>>>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 >>>>> enp3s0f2 enp3s0f3' >>>>> for i in $ifc >>>>>         do >>>>>         ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs 64 >>>>> tx-usecs 512 >>>>>         ethtool -K $i gro off >>>>>         ethtool -K $i tso on >>>>> >>>>>         done >>>>> >>>>> MEMLEAK - about 2MB/10secs >>>>> 2  MB/10sec >>>>> 2  MB/10sec >>>>> 2  MB/10sec >>>>> >>>>> >>>>> With - rx-usecs set to 256 (about 7-9MB/10secs memleak) >>>>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 >>>>> enp3s0f2 enp3s0f3' >>>>> for i in $ifc >>>>>         do >>>>>         ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs 256 >>>>> tx-usecs 512 >>>>>         ethtool -K $i gro off >>>>>         ethtool -K $i tso on >>>>> >>>>>         done >>>>> >>>>> MEMLEAK: >>>>> 7  MB/10sec >>>>> 7  MB/10sec >>>>> 8  MB/10sec >>>>> 9  MB/10sec >>>>> >>>>> >>>> >>>> And even less memleak with rx-usecs set to 32 >>>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 enp3s0f2 >>>> enp3s0f3' >>>> for i in $ifc >>>>         do >>>>         ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs 32 >>>> tx-usecs 512 >>>>         ethtool -K $i gro off >>>>         ethtool -K $i tso on >>>> >>>>         done >>>> >>>> >>>> MEMLEAK - about 0-2MB for each 10 seconds >>>> 0  MB/10sec >>>> 1  MB/10sec >>>> 0  MB/10sec >>>> 2  MB/10sec >>>> 1  MB/10sec >>>> >>>> >>>> >>> >>> >>> So best settings - to have as less leak as possible for now >>> (rx-usecs set to 16): >>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 enp3s0f2 >>> enp3s0f3' >>> for i in $ifc >>>         do >>>         ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs 16 >>> tx-usecs 768 >>>         ethtool -K $i gro on >>>         ethtool -K $i tso on >>> >>>         done >>> >>> >>> MEMLEAK: (0-1MB/10seconds) >>> 0  MB/10sec >>> 0  MB/10sec >>> 0  MB/10sec >>> 1  MB/10sec >>> 1  MB/10sec >>> -1  MB/10sec >>> 1  MB/10sec >>> 1  MB/10sec >>> 0  MB/10sec >>> >>> (there are some memory recycles - so this is good :) ) >>> >>> >>> >>> Compared to(rx-usecs 512): >>> >>> ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 enp3s0f2 >>> enp3s0f3' >>> for i in $ifc >>>         do >>>         ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs 512 >>> tx-usecs 128 >>>         ethtool -K $i gro on >>>         ethtool -K $i tso on >>> >>>         done >>> >>> Server is leaking about 4-6MB per each 10 seconds >>> MEMLEAK: >>> 5  MB/10sec >>> 6  MB/10sec >>> 4  MB/10sec >>> 4  MB/10sec >>> >>> >> >> And  graph where all changes for rx-usecs was done over some time: >> https://ibb.co/nrRfbR >> >> >> >> >> > Cant eliminate the problem with settings - memleak is bigger or less > visible with rx-usecs set to low values - but then have 100% cpu load > - cant have rx-usecs set to 16 > > Cant find also other host with same cards or that are using i40e > driver for tests with bisecting > So will just replace to mellanox :) > > Also after fresh reboot with i40e startup settings: ifc='enp2s0f0 enp2s0f1 enp2s0f2 enp2s0f3 enp3s0f0 enp3s0f1 enp3s0f2 enp3s0f3' for i in $ifc         do         ip link set up dev $i         ethtool -A $i autoneg off rx off tx off         ethtool -G $i rx 2048 tx 2048         ip link set $i txqueuelen 1000         #ethtool -C $i rx-usecs 256         ethtool -C $i adaptive-rx off adaptive-tx off rx-usecs 17 tx-usecs 125         ethtool -L $i combined 6         #ethtool -N $i rx-flow-hash udp4 sdfn         #ethtool -K $i ntuple on         #ethtool -K $i gro off         #ethtool -K $i tso off         done After issuing:  ethtool -K enp2s0f0 gro on tso on dmesg shows [35764.338259] i40e 0000:02:00.0: PF reset failed, -15 and no traffic on the card :)