rte_kni: Creating kni...
 BUG: unable to handle kernel paging request at ffffffff8e4ecd2
 IP: kni_ioctl_create+0xb1/0x640 [rte_kni]
 PGD e8280e067 P4D e8280e067 PUD e8280f063 PMD 0 
 Oops: 0000 [#1] SMP NOPTI
 Modules linked in: ip6t_MASQUERADE nf_nat_masquerade_ipv6 xt_R
  shpchp lpc_ich ipmi_si ipmi_devintf ipmi_msghandler wmi mac_h
 CPU: 0 PID: 9671 Comm: rpl_dpdk_demo Tainted: G           OE  
 Hardware name: EVOC NET-2815VD2N/NET-2815VD2N, BIOS 5.11 07/17
 RIP: 0010:kni_ioctl_create+0xb1/0x640 [rte_kni]
 RSP: 0018:ffff9d07ca96bd68 EFLAGS: 00010202
 RAX: 0000000039462200 RBX: 0000000000000088 RCX: 0000000000000
 RDX: 0000000000000088 RSI: 0000000039462200 RDI: 0000000000000
 RBP: ffff9d07ca96be38 R08: 0000000000000985 R09: 0000000000000
 R10: ffff8ce0287ecf38 R11: 0000000000000001 R12: ffff8ce05d216
 R13: 00007fffffffe0c0 R14: ffff8ce0635d8000 R15: 00007fffffffe
 FS:  00007ffff7fed400(0000) GS:ffff8ce25fa00000(0000) knlGS:00
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: ffffffff8e4ecd20 CR3: 0000000cdb938003 CR4: 0000000000360
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000
 Call Trace:
  kni_ioctl+0x81/0xc0 [rte_kni]
  do_vfs_ioctl+0xa8/0x630
  ? handle_mm_fault+0xcc/0x240
  ? __do_page_fault+0x2a1/0x4b0
  SyS_ioctl+0x79/0x90
  do_syscall_64+0x73/0x130
  entry_SYSCALL_64_after_hwframe+0x41/0xa6
 RIP: 0033:0x7ffff6f24317
 RSP: 002b:00007fffffffe0b8 EFLAGS: 00003246 ORIG_RAX: 00000000
 RAX: ffffffffffffffda RBX: 0000000139cbb1c0 RCX: 00007ffff6f24
 RDX: 00007fffffffe0c0 RSI: 00000000c0880002 RDI: 0000000000000
 RBP: 00007fffffffe270 R08: 00007fffffffe150 R09: 0000000000000
 R10: 00000000ffffffef R11: 0000000000003246 R12: 00007fffffffe
 R13: 0000000139cbb340 R14: 00007fffffffe0c0 R15: 0000000140025
 Code: 20 00 00 00 e8 11 a6 44 c6 48 3d 87 00 00 00 0f 87 1f 05
 RIP: kni_ioctl_create+0xb1/0x640 [rte_kni] RSP: ffff9d07ca96bd
 CR2: ffffffff8e4ecd20
 ---[ end trace 4c53b1720cf4da78 ]---