apport information ** Attachment added: "ProcInterrupts.txt" https://bugs.launchpad.net/bugs/1905993/+attachment/5438832/+files/ProcInterrupts.txt
-- 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/1905993 Title: Actual kernel don't want to make more than 64 cpus available Status in linux package in Ubuntu: Incomplete Bug description: This is kinda complicated but i try my best to explain it as much as i can. First of all i found out that in bionic beaver cloud image i was able to have 248 cpus without any issues. Then i've taken a look into focal, but there i was only able to get up up to 64 cpus. Then i've tryed to figure out what was wrong. Debian, wasnt able to handle this with a 4.19 kernel. Bionic beaver had 4.18 so i tried to upgrade to a 4.19 with success but only with 64 cpus. So i think the problem maybe exist since 4.19. My setup. Openstack Hypervisor with ubuntu 18.04 KVM/Qemu with a vm clean bionic works fine, till i upgrade to a kernel > 4.18. Every 5.* version seems to be affected as well. Debian buster has this issue and fedora (Both in latest versions with kernel above 4.18) Already started debugging with TJ- at irc. Paste links with debugging informations /sys/devices/system/cpu/cpu*/topology/ http://paste.ubuntu.com/p/5txHGPHpBT/ and virsh dumpxml of the VM https://pastebin.ubuntu.com/p/sPWHVMn5FX/ CPU on the Hypervisor (works fine): https://pastebin.ubuntu.com/p/KRNMSThT92/ Hope this helps to dig down the bug. --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.20 Architecture: amd64 DistroRelease: Ubuntu 18.04 Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C.UTF-8 SHELL=/bin/bash Tags: bionic uec-images Uname: Linux 4.19.160-0419160-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm audio cdrom dialout dip floppy lxd netdev plugdev sudo video _MarkForUpload: True --- ProblemType: Bug AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Nov 27 21:50 seq crw-rw---- 1 root audio 116, 33 Nov 27 21:50 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.20 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A DistroRelease: Ubuntu 18.04 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: OpenStack Foundation OpenStack Nova Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-63-generic root=UUID=17d2bcf1-3687-426a-8219-978743746d51 ro console=tty1 console=ttyS0 ProcVersionSignature: Ubuntu 5.0.0-63.69-generic 5.0.21 RelatedPackageVersions: linux-restricted-modules-5.0.0-63-generic N/A linux-backports-modules-5.0.0-63-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' Tags: bionic uec-images Uname: Linux 5.0.0-63-generic x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm audio cdrom dialout dip floppy lxd netdev plugdev sudo video _MarkForUpload: False dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.10.2-1ubuntu1 dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-4.0 dmi.modalias: dmi:bvnSeaBIOS:bvr1.10.2-1ubuntu1:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr20.1.1:cvnQEMU:ct1:cvrpc-i440fx-4.0: dmi.product.family: Virtual Machine dmi.product.name: OpenStack Nova dmi.product.version: 20.1.1 dmi.sys.vendor: OpenStack Foundation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1905993/+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
