i40e driver panics in i40e_sync_vsi_filters()

Solution Verified - Updated -

Issue

  • This is an OpenStack compute node. As it hosts openstack instances and it rebooting so often can cause application crashes on those instances.
  • System panics with the following back trace:
PANIC: "general protection fault: 0000 [#1] SMP "
crash> bt
PID: 35167  TASK: ffff89dee3e18000  CPU: 0   COMMAND: "libvirtd"
 #0 [ffff89dc0daa33d8] machine_kexec at ffffffff8c863674
 #1 [ffff89dc0daa3438] __crash_kexec at ffffffff8c91cef2
 #2 [ffff89dc0daa3508] crash_kexec at ffffffff8c91cfe0
 #3 [ffff89dc0daa3520] oops_end at ffffffff8cf6c758
 #4 [ffff89dc0daa3548] die at ffffffff8c82f95b
 #5 [ffff89dc0daa3578] do_general_protection at ffffffff8cf6c052
 #6 [ffff89dc0daa35b0] general_protection at ffffffff8cf6b6f8
    [exception RIP: i40e_sync_vsi_filters+0xa4]
    RIP: ffffffffc04a85c4  RSP: ffff89dc0daa3660  RFLAGS: 00010282
    RAX: cccb7df8ffff0010  RBX: ffff8988ef2a9000  RCX: 0000000000000000
    RDX: ffff89dc0daa3fd8  RSI: 0000000000000200  RDI: ffff8988ef2a9000
    RBP: ffff89dc0daa3700   R8: ffff89dc0daa0000   R9: 0000000000000001
    R10: 0000000000001941  R11: 7fffffffffffffff  R12: ffff8988ef2a9210
    R13: ffff8988ef2a9a28  R14: ffff89deeaedad80  R15: ffff89dc25f09430
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #7 [ffff89dc0daa3708] i40e_ndo_set_vf_mac at ffffffffc04d7655 [i40e]
 #8 [ffff89dc0daa3760] do_setlink at ffffffff8ce4fe3b
 #9 [ffff89dc0daa3888] rtnl_setlink at ffffffff8ce5086a
#10 [ffff89dc0daa3a58] rtnetlink_rcv_msg at ffffffff8ce52a17
#11 [ffff89dc0daa3ac8] netlink_rcv_skb at ffffffff8ce75bab
#12 [ffff89dc0daa3af0] rtnetlink_rcv at ffffffff8ce4ced8
#13 [ffff89dc0daa3b08] netlink_unicast at ffffffff8ce75530
#14 [ffff89dc0daa3b50] netlink_sendmsg at ffffffff8ce758d8
#15 [ffff89dc0daa3bd8] sock_sendmsg at ffffffff8ce193a6
#16 [ffff89dc0daa3d38] ___sys_sendmsg at ffffffff8ce1a269
#17 [ffff89dc0daa3ed0] __sys_sendmsg at ffffffff8ce1b921
#18 [ffff89dc0daa3f40] sys_sendmsg at ffffffff8ce1b972
#19 [ffff89dc0daa3f50] system_call_fastpath at ffffffff8cf74ddb
crash> 

Environment

  • Red Hat Enterprise Linux 7
    • kernel-3.10.0-957.1.3.el7
    • kernel-3.10.0-1062.9.1.el7
  • Intel i40e
    • VF entities used by VMs
  • Openstack

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