Joe, just to be clear: 1) Are you saying that you ran the test on a single system but 18.04 reported a different MT2xxx family compared to 16.04, or did you run this on two different systems?
2) Can you please provide the exact kernel versions that you tried: 16.04 that passes, 16.04 that fails, 18.04 that passes. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-azure in Ubuntu. https://bugs.launchpad.net/bugs/1856605 Title: [linux-azure] Ubuntu 16.04 + INFINIBAND-OPEN-MPI-2VM Status in linux-azure package in Ubuntu: Confirmed Bug description: We ran an RDMA test case against gallery image Ubuntu 16.04 (with proposed kernel), and found the below issue. The kernel prior to proposed does not exhibit this bug, so it is a regression: The issue is when ibv_devinfo is run, we get the below info: ibv_devinfo libibverbs: Warning: no userspace device-specific driver found for /sys/class/infiniband_verbs/uverbs0 No IB devices found ibv_devices libibverbs: Warning: no userspace device-specific driver found for /sys/class/infiniband_verbs/uverbs0 device node GUID ------ ---------------- Ibstat works as expected CA 'mlx5_0' CA type: MT4120 Number of ports: 1 Firmware version: 16.23.1020 Hardware version: 0 Node GUID: 0x00155dfffe33ff49 System image GUID: 0x506b4b0300f521ec Port 1: State: Active Physical state: LinkUp Rate: 100 Base lid: 713 LMC: 0 SM lid: 16 Capability mask: 0x2651ec48 Port GUID: 0x00155dfffd33ff49 Link layer: InfiniBand This Family exhibits the bug, with a subsystem of MT28800: lspci -v|egrep 'Mel|mlx' 0002:00:02.0 Infiniband controller: Mellanox Technologies MT27800 Family [ConnectX-5 Virtual Function] Subsystem: Mellanox Technologies MT28800 Family [ConnectX-5 Virtual Function] Kernel driver in use: mlx5_core Kernel modules: mlx5_core This issue does not occur with Ubuntu 18.04, which has a different Subsystem(MT27800): lspci -v|egrep 'Mel|mlx' 0002:00:02.0 Infiniband controller: Mellanox Technologies MT27800 Family [ConnectX-5 Virtual Function] Subsystem: Mellanox Technologies MT27800 Family [ConnectX-5 Virtual Function] Kernel driver in use: mlx5_core Kernel modules: mlx5_core If we could, we would like to move to rmda-core to version 22 or higher. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1856605/+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
