We face similar issue with VPP+DPDK+SRIOV interfaces: notice dpdk EAL: VFIO support initialized notice dpdk EAL: Using IOMMU type 1 (Type 1) notice dpdk EAL: Getting a vfio_dev_fd for 0000:81:02.0 failed notice dpdk EAL: Requested device 0000:81:02.0 cannot be used notice dpdk EAL: Using IOMMU type 1 (Type 1) notice dpdk EAL: Could not install memory event callback for VFIO notice dpdk EAL: Requested device 0000:81:0a.0 cannot be used
Tested kernel versions: 6.8.0-60.63~22.04.1 - working as expected 6.8.0-62.65~22.04.1 - working as expected 6.8.0-64.67~22.04.1 - broken 6.8.0-70~** - broken -- 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/2117335 Title: Noble 6.8.0-64.67 update prevents vanilla LXD setup from launching QEMU-based VMs with SR-IOV network interfaces Status in linux package in Ubuntu: Confirmed Status in linux source package in Noble: Confirmed Bug description: [email protected] contacted me about a possible regression (if it is indeed a regression it probably came from the upstream and might be related to https://bugs.launchpad.net/ubuntu/+source/linux- lowlatency/+bug/2117334). Fabian's mail: -------------------------------------------------------------------------------------------------------- The recent Kernel 6.8.0-64.67 update [1] for Noble 24.04 seems to have changed something under the hood, preventing a vanilla LXD setup from launching QEMU-based VMs with SR-IOV network interfaces [2]. A temporary rollback via GRUB to 6.8.0-63.66 fixes the problem instantly. I went through the diff [3], but haven’t found anything concrete (yet). Fortunately (or unfortunately in this case), I‘m not alone with this issue, as even downstream projects like Proxmox are now affected [4 & 5]. What do you think? Any hints? [1] https://launchpad.net/ubuntu/+source/linux/6.8.0-64.67 [2] Error: Failed setting up device via monitor: Failed setting up device "eth0": Failed adding NIC device: vfio 0000:2b:0a.1: error getting device from group 59: Permission denied [3] https://launchpad.net/ubuntu/+archive/primary/+files/linux_6.8.0-63.66_6.8.0-64.67.diff.gz [4] https://forum.proxmox.com/threads/kernel-6-8-12-12-pve-update- results-in-vfio-pci-passthrough-issues.168519 [5] https://forum.proxmox.com/threads/regression-cannot-start-vms- with-kernel-6-8-12-12-pve-and-6-14-8-1-bpo12-pve-and-pci-passthrough- sr-iov-x710-vf.168514 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2117335/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
