[-1;-1f[-1;-1fUbuntu 16.04[-1;-1f.  .  .  .[  685.442039] Oops: Kernel access of bad area, sig: 11 [#1]
[  685.442180] SMP NR_CPUS=2048 NUMA PowerNV
[  685.442238] Modules linked in: ebtable_nat(-) xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables bridge stp llc binfmt_misc joydev input_leds mac_hid ofpart cmdlinepart powernv_flash ipmi_powernv kvm_hv ipmi_msghandler mtd kvm powernv_rng at24 uio_pdrv_genirq uio opal_prd autofs4 hid_generic usbhid hid uas usb_storage ast i2c_algo_bit ttm bnx2x drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm megaraid_sas vxlan ahci ip6_udp_tunnel udp_tunnel libahci mdio libcrc32c [last unloaded: ebtable_broute]
[  685.442911] CPU: 24 PID: 2379 Comm: brctl Not tainted 4.4.0-36-generic #55-Ubuntu
[  685.442955] task: c000001e375e4dc0 ti: c0000000fc2f4000 task.ti: c0000000fc2f4000
[  685.442999] NIP: d000000012828460 LR: d00000001282a714 CTR: c000000000998410
[  685.443042] REGS: c0000000fc2f77a0 TRAP: 0300   Not tainted  (4.4.0-36-generic)
[  685.443085] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE>  CR: 28002484  XER: 20000000
[  685.443195] CFAR: c000000000008468 DAR: 00000000000000d2 DSISR: 42000000 SOFTE: 1 
GPR00: d00000001282a714 c0000000fc2f7a20 d000000012839800 0000000000000000 
GPR04: 0000000000000001 0000000000000001 0000000000000000 0000000000000000 
GPR08: c000000000fafe48 0000000000000000 c000001e3d300908 d00000001282c1c8 
GPR12: c000000000998410 c00000000fb4e400 0000000000000000 0000000000000000 
GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
GPR24: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
GPR28: c000001e36b89d40 c000001e37e04000 0000000000000000 0000000000000000 
[  685.443884] NIP [d000000012828460] __vlan_flush+0x30/0x90 [bridge]
[  685.443923] LR [d00000001282a714] nbp_vlan_flush+0x44/0xcc [bridge]
[  685.443966] Call Trace:
[  685.443982] [c0000000fc2f7a20] [c0000000fc2f7a50] 0xc0000000fc2f7a50 (unreliable)
[  685.444035] [c0000000fc2f7a50] [d00000001282a714] nbp_vlan_flush+0x44/0xcc [bridge]
[  685.444087] [c0000000fc2f7ac0] [d000000012815b9c] del_nbp+0xcc/0x1b0 [bridge]
[  685.444133] [c0000000fc2f7b00] [d0000000128166a0] br_del_if+0x60/0x100 [bridge]
[  685.444187] [c0000000fc2f7b30] [d000000012817420] add_del_if+0x80/0xf0 [bridge]
[  685.444242] [c0000000fc2f7b70] [c0000000009a6374] dev_ifsioc+0x344/0x3f0
[  685.444286] [c0000000fc2f7bd0] [c0000000009a67d0] dev_ioctl+0x3b0/0x870
[  685.444358] [c0000000fc2f7c70] [c000000000955b20] sock_do_ioctl+0xa0/0xd0
[  685.444491] [c0000000fc2f7cb0] [c00000000095652c] sock_ioctl+0x2bc/0x3d0
[  685.444535] [c0000000fc2f7d40] [c0000000002fd400] do_vfs_ioctl+0x480/0x7d0
[  685.444579] [c0000000fc2f7de0] [c0000000002fd824] SyS_ioctl+0xd4/0xf0
[  685.444623] [c0000000fc2f7e30] [c000000000009204] system_call+0x38/0xb4
[  685.444666] Instruction dump:
[  685.444693] 3c4c0001 384213d0 7c0802a6 fbc1fff0 fbe1fff8 f8010010 f821ffd1 7c7e1b78 
[  685.444768] 48000008 e8410018 7c2004ac 39200000 <b13e00d2> e93e00c1 7fbe4840 ebe90000 
[  685.448100] ---[ end trace d00e86fe92077347 ]---
[  685.496461] 
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