I built a test kernel with commit 8ffd569aaa81. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1799049
Can you test this kernel and see if it resolves this bug? Note about installing test kernels: * If the test kernel is prior to 4.15(Bionic) you need to install the linux-image and linux-image-extra .deb packages. * If the test kernel is 4.15(Bionic) or newer, you need to install the linux-modules, linux-modules-extra and linux-image-unsigned .deb packages. Thanks in advance! -- 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/1799049 Title: [bionic]mlx5: reading SW stats through ifstat cause kernel crash Status in linux package in Ubuntu: Triaged Status in linux source package in Bionic: Triaged Bug description: 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/ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1799049/+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
