Public bug reported: Using an openvswitch bridge with conntrack flows causes a kernel warning trace for every packet. This does not break conntrack functionality, but causes a big packet forwarding performance degradation and very noisy and large kernel.log/journal/syslog/etc. The cause is a regression in the 5.15 LTS kernel. This seems to have been fixed in mainline 5.15.36, but I don't see the fix in any of the jammy branches.
Upgrading to mainline 5.15.36 or beyond from the Ubuntu PPA fixes the problem. Here is a relevant discussion with reference to the fix applied to mainline: https://lore.kernel.org/netdev/ymajlos1ytpaq...@kroah.com/T/ ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: linux-image-5.15.0-39-generic 5.15.0-39.42 ProcVersionSignature: Ubuntu 5.15.0-39.42-generic 5.15.35 Uname: Linux 5.15.0-39-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl icp AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Jun 15 15:38 seq crw-rw---- 1 root audio 116, 33 Jun 15 15:38 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu82.1 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckMismatches: ./boot/grub/grub.cfg CasperMD5CheckResult: fail Date: Wed Jun 15 15:41:13 2022 InstallationDate: Installed on 2022-06-15 (0 days ago) InstallationMedia: Ubuntu-Server 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220421) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: Supermicro SYS-E300-8D PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-39-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro RelatedPackageVersions: linux-restricted-modules-5.15.0-39-generic N/A linux-backports-modules-5.15.0-39-generic N/A linux-firmware 20220329.git681281e4-0ubuntu3.2 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/31/2017 dmi.bios.release: 5.6 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.0c dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X10SDV-TP8F dmi.board.vendor: Supermicro dmi.board.version: 1.01 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 1 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.0c:bd10/31/2017:br5.6:svnSupermicro:pnSYS-E300-8D:pvr0123456789:rvnSupermicro:rnX10SDV-TP8F:rvr1.01:cvnSupermicro:ct1:cvr0123456789:skuTobefilledbyO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: SYS-E300-8D dmi.product.sku: To be filled by O.E.M. dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Affects: openvswitch (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug jammy uec-images -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1978865 Title: openvswitch: nf_ct_put is called with null pointer Status in linux package in Ubuntu: New Status in openvswitch package in Ubuntu: New Bug description: Using an openvswitch bridge with conntrack flows causes a kernel warning trace for every packet. This does not break conntrack functionality, but causes a big packet forwarding performance degradation and very noisy and large kernel.log/journal/syslog/etc. The cause is a regression in the 5.15 LTS kernel. This seems to have been fixed in mainline 5.15.36, but I don't see the fix in any of the jammy branches. Upgrading to mainline 5.15.36 or beyond from the Ubuntu PPA fixes the problem. Here is a relevant discussion with reference to the fix applied to mainline: https://lore.kernel.org/netdev/ymajlos1ytpaq...@kroah.com/T/ ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: linux-image-5.15.0-39-generic 5.15.0-39.42 ProcVersionSignature: Ubuntu 5.15.0-39.42-generic 5.15.35 Uname: Linux 5.15.0-39-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl icp AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Jun 15 15:38 seq crw-rw---- 1 root audio 116, 33 Jun 15 15:38 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu82.1 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A CasperMD5CheckMismatches: ./boot/grub/grub.cfg CasperMD5CheckResult: fail Date: Wed Jun 15 15:41:13 2022 InstallationDate: Installed on 2022-06-15 (0 days ago) InstallationMedia: Ubuntu-Server 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220421) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: Supermicro SYS-E300-8D PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-39-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro RelatedPackageVersions: linux-restricted-modules-5.15.0-39-generic N/A linux-backports-modules-5.15.0-39-generic N/A linux-firmware 20220329.git681281e4-0ubuntu3.2 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/31/2017 dmi.bios.release: 5.6 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.0c dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X10SDV-TP8F dmi.board.vendor: Supermicro dmi.board.version: 1.01 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 1 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.0c:bd10/31/2017:br5.6:svnSupermicro:pnSYS-E300-8D:pvr0123456789:rvnSupermicro:rnX10SDV-TP8F:rvr1.01:cvnSupermicro:ct1:cvr0123456789:skuTobefilledbyO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: SYS-E300-8D dmi.product.sku: To be filled by O.E.M. dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1978865/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
