You have been subscribed to a public bug: Hi, I've recently upgraded my system to ubuntu 19.04, and kernel consistently panics when I boot a virtual machine using an SR-IOV VFIO virtual function. Could reproduce with 5.0.0-13-generic and 5.0.0-15-generic, doesn't happen with 4.18.0-20-generic.
I'm using libvirt and VM is using KVM, XML snippet to delegate virtual function to VM is: <hostdev mode='subsystem' type='pci' managed='yes'> <driver name='vfio'/> <source> <address domain='0x0000' bus='0x05' slot='0x10' function='0x0'/> </source> <alias name='hostdev0'/> <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/> </hostdev> As soon as I start the VM using "virsh start vm", kernel panics. I'm using X550T intel NIC (lspci output: Ethernet controller: Intel Corporation Ethernet Controller 10G X550T (rev 01)) on a Supermicro X11SSH-CTF motherboard, with up to date bios and 4 virtual functions (class/net/em1/device/sriov_numvfs = 4). Given panic stack trace (see attachment), I've narrowed down the bug to ixgbe_ipsec_vf_clear function in upstream ixgbe driver: https://github.com/torvalds/linux/blob/72cf0b07418a9c8349aa9137194b1ccba6e54a9d/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c#L840 When I comment its usage (https://github.com/torvalds/linux/blob/72cf0b07418a9c8349aa9137194b1ccba6e54a9d/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c#L734), everything works as expected (I'm not using any ipsec feature). Didn't try to fix the ixgbe_ipsec_vf_clear function though. Please find attached a stack trace collected using IPMI serial-over-lan. ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- Kernel panic upon resetting ixgbe SR-IOV VFIO virtual function using 5.0 kernel https://bugs.launchpad.net/bugs/1829652 You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. -- 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
