Public bug reported: Description of problem: Attempting to read SW stats (ifstat -x cpu_hit) on a system with probed VFs will crash the system.
How reproducible: Always Steps to Reproduce: 1. Create a VF echo 1 > /sys/bus/pci/devices/0000\:82\:00.0/sriov_numvfs 2. read SW stats: ifstat -x cpu_hit Actual results: System will crash Expected results: No system crash Additional info: The reason for the crash is insufficient check on the helper that determines if a netdev is vf rep. will crash: $ ifstat -x cpu_hit will not crash: $ ifstat -x cpu_hit $VF_REP $ ifstat -x cpu_hit $UPLINK_REP We already have a fix for this issue, and it is accepted upstream. https://patchwork.ozlabs.org/patch/935193/ ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1799049 Title: [bionic]mlx5: reading SW stats through ifstat cause kernel crash To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1799049/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
