team0: Port device team_slave_0 added
IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
team0: Port device team_slave_1 added
IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
BUG: unable to handle kernel paging request at fffffffc00000008
kobject: 'gretap0' (00000000a0983e11): kobject_cleanup, parent           (null)
#PF error: [WRITE]
PGD 9871067 P4D 9871067 PUD 0 
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8190 Comm: kworker/u4:6 Not tainted 4.20.0+ #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:__skb_unlink include/linux/skbuff.h:1924 [inline]
RIP: 0010:__skb_dequeue include/linux/skbuff.h:1941 [inline]
RIP: 0010:__skb_queue_purge include/linux/skbuff.h:2655 [inline]
RIP: 0010:gro_cells_destroy net/core/gro_cells.c:89 [inline]
RIP: 0010:gro_cells_destroy+0x1ab/0x360 net/core/gro_cells.c:78
Code: 7a 08 49 8b 47 08 49 c7 07 00 00 00 00 48 89 f9 49 c7 47 08 00 00 00 00 48 c1 e9 03 42 80 3c 21 00 0f 85 10 01 00 00 48 89 c1 <48> 89 42 08 48 c1 e9 03 42 80 3c 21 00 0f 85 dd 00 00 00 48 89 10
kobject: 'veth0_to_hsr' (000000008d2c0de0): kobject_add_internal: parent: 'net', set: 'devices'
RSP: 0018:ffff888068adf4b0 EFLAGS: 00010246
kobject: 'veth0_to_hsr' (000000008d2c0de0): kobject_uevent_env
RAX: 87a820000000001e RBX: ffffe8ffffc69938 RCX: 87a820000000001e
kobject: 'gretap0' (00000000a0983e11): calling ktype release
RDX: fffffffc00000000 RSI: ffffffff8634f68a RDI: fffffffc00000008
kobject: 'gretap0': free name
RBP: ffff888068adf510 R08: ffff888068ad20c0 R09: fffffbfff1460a79
R10: fffffbfff1460a78 R11: ffffffff8a3053c3 R12: dffffc0000000000
R13: 0000000000000000 R14: ffffe8ffffc69948 R15: ffffe8ffffc7418c
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffc00000008 CR3: 000000006642b000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ip_tunnel_dev_free+0x19/0x60 net/ipv4/ip_tunnel.c:969
 netdev_run_todo+0x647/0xae0 net/core/dev.c:8885
kobject: 'veth0_to_hsr' (000000008d2c0de0): fill_kobj_path: path = '/devices/virtual/net/veth0_to_hsr'
kobject: 'queues' (0000000015bde999): kobject_add_internal: parent: 'veth0_to_hsr', set: '<NULL>'
 rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:117
kobject: 'queues' (0000000015bde999): kobject_uevent_env
 ip_tunnel_delete_nets+0x4df/0x6d0 net/ipv4/ip_tunnel.c:1083
kobject: 'queues' (0000000015bde999): kobject_uevent_env: filter function caused the event to drop!
 ipip_exit_batch_net+0x23/0x30 net/ipv4/ipip.c:663
 ops_exit_list.isra.0+0x105/0x160 net/core/net_namespace.c:156
 cleanup_net+0x51d/0xb10 net/core/net_namespace.c:551
kobject: 'rx-0' (00000000b2b804b2): kobject_add_internal: parent: 'queues', set: 'queues'
 process_one_work+0xd0c/0x1ce0 kernel/workqueue.c:2153
kobject: 'rx-0' (00000000b2b804b2): kobject_uevent_env
kobject: 'rx-0' (00000000b2b804b2): fill_kobj_path: path = '/devices/virtual/net/veth0_to_hsr/queues/rx-0'
kobject: 'tx-0' (00000000ce0f2723): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'tx-0' (00000000ce0f2723): kobject_uevent_env
 worker_thread+0x143/0x14a0 kernel/workqueue.c:2296
kobject: 'tx-0' (00000000ce0f2723): fill_kobj_path: path = '/devices/virtual/net/veth0_to_hsr/queues/tx-0'
kobject: 'batman_adv' (00000000be73b8be): kobject_add_internal: parent: 'veth0_to_hsr', set: '<NULL>'
kobject: 'hsr_slave_0' (00000000605ee580): kobject_add_internal: parent: 'net', set: 'devices'
 kthread+0x357/0x430 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
CR2: fffffffc00000008
kobject: 'hsr_slave_0' (00000000605ee580): kobject_uevent_env
---[ end trace 64d5d012c4c7009c ]---
RIP: 0010:__skb_unlink include/linux/skbuff.h:1924 [inline]
RIP: 0010:__skb_dequeue include/linux/skbuff.h:1941 [inline]
RIP: 0010:__skb_queue_purge include/linux/skbuff.h:2655 [inline]
RIP: 0010:gro_cells_destroy net/core/gro_cells.c:89 [inline]
RIP: 0010:gro_cells_destroy+0x1ab/0x360 net/core/gro_cells.c:78
Code: 7a 08 49 8b 47 08 49 c7 07 00 00 00 00 48 89 f9 49 c7 47 08 00 00 00 00 48 c1 e9 03 42 80 3c 21 00 0f 85 10 01 00 00 48 89 c1 <48> 89 42 08 48 c1 e9 03 42 80 3c 21 00 0f 85 dd 00 00 00 48 89 10
RSP: 0018:ffff888068adf4b0 EFLAGS: 00010246
RAX: 87a820000000001e RBX: ffffe8ffffc69938 RCX: 87a820000000001e
RDX: fffffffc00000000 RSI: ffffffff8634f68a RDI: fffffffc00000008
kobject: 'hsr_slave_0' (00000000605ee580): fill_kobj_path: path = '/devices/virtual/net/hsr_slave_0'
RBP: ffff888068adf510 R08: ffff888068ad20c0 R09: fffffbfff1460a79
R10: fffffbfff1460a78 R11: ffffffff8a3053c3 R12: dffffc0000000000
R13: 0000000000000000 R14: ffffe8ffffc69948 R15: ffffe8ffffc7418c
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffc00000008 CR3: 000000006642b000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400