Warning: Permanently added '10.128.0.209' (ECDSA) to the list of known hosts.
[  512.950001] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018
[  512.958330] IP: [<ffffffff811be4e0>] __lock_acquire+0x2b0/0x1c70
[  512.964672] PGD 205efd067 PUD 209cfc067 PMD 0 
[  512.969646] Oops: 0000 [#1] SMP 
[  512.973232] Modules linked in:
[  512.976525] CPU: 1 PID: 20989 Comm: kworker/1:0 Not tainted 4.1.0-syzkaller #0
[  512.983945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  512.993341] Workqueue: events p9_poll_workfn
[  512.997842] task: ffff8800b9c58210 ti: ffff8802148e4000 task.ti: ffff8802148e4000
[  513.005632] RIP: 0010:[<ffffffff811be4e0>]  [<ffffffff811be4e0>] __lock_acquire+0x2b0/0x1c70
[  513.014319] RSP: 0018:ffff8802148e7b68  EFLAGS: 00010002
[  513.021443] RAX: 0000000000000086 RBX: 0000000000000000 RCX: 0000000000000000
[  513.028735] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
[  513.035991] RBP: ffff8802148e7c28 R08: 0000000000000001 R09: 0000000000000001
[  513.047487] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
[  513.054737] R13: 0000000000000000 R14: 0000000000000018 R15: ffff8800b9c58210
[  513.061997] FS:  0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
[  513.070211] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  513.076066] CR2: 0000000000000018 CR3: 00000001fb391000 CR4: 00000000001407e0
[  513.083314] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  513.090557] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  513.097808] Stack:
[  513.100050]  0000000000000007 ffff8800b9c58210 0000000000000006 ffff8800b9c58a30
[  513.108066]  ffff8802148e7bc8 ffffffff00000001 0000000000000000 ffff880000000000
[  513.116211]  ffffffff822d1379 ffff88020f9ffc00 ffffffff82d94e60 0000000000000080
[  513.124379] Call Trace:
[  513.126951]  [<ffffffff822d1379>] ? retint_kernel+0x10/0x10
[  513.132635]  [<ffffffff811bdc05>] ? trace_hardirqs_on_caller+0x155/0x200
[  513.139501]  [<ffffffff8185f438>] ? trace_hardirqs_on_thunk+0x17/0x19
[  513.146054]  [<ffffffff811c0960>] lock_acquire+0xe0/0x2f0
[  513.151569]  [<ffffffff822550ac>] ? p9_conn_cancel+0x2c/0x170
[  513.157436]  [<ffffffff822d02ff>] _raw_spin_lock_irqsave+0x5f/0x90
[  513.163727]  [<ffffffff822550ac>] ? p9_conn_cancel+0x2c/0x170
[  513.169593]  [<ffffffff822550ac>] p9_conn_cancel+0x2c/0x170
[  513.175362]  [<ffffffff8225541e>] p9_poll_workfn+0x11e/0x160
[  513.181134]  [<ffffffff8118a09e>] process_one_work+0x20e/0x850
[  513.187091]  [<ffffffff8118a007>] ? process_one_work+0x177/0x850
[  513.193222]  [<ffffffff8118a72b>] worker_thread+0x4b/0x470
[  513.198817]  [<ffffffff8118a6e0>] ? process_one_work+0x850/0x850
[  513.204932]  [<ffffffff8118a6e0>] ? process_one_work+0x850/0x850
[  513.211051]  [<ffffffff81190aaa>] kthread+0xea/0x100
[  513.216165]  [<ffffffff811909c0>] ? kthread_create_on_node+0x210/0x210
[  513.222803]  [<ffffffff822d0ba2>] ret_from_fork+0x42/0x70
[  513.228326]  [<ffffffff811909c0>] ? kthread_create_on_node+0x210/0x210
[  513.234974] Code: 31 c0 e8 0b 0e 10 01 e8 5c 40 10 01 0f 1f 80 00 00 00 00 31 db 48 81 c4 98 00 00 00 89 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 66 90 <49> 81 3e 00 03 fc 82 b8 00 00 00 00 44 0f 44 e0 41 83 fd 01 0f 
[  513.262826] RIP  [<ffffffff811be4e0>] __lock_acquire+0x2b0/0x1c70
[  513.269169]  RSP <ffff8802148e7b68>
[  513.272767] CR2: 0000000000000018
[  513.277063] ---[ end trace a1d00b9ba5dc74d8 ]---
[  513.281793] Kernel panic - not syncing: Fatal exception
[  513.288055] Kernel Offset: disabled
[  513.291730] Rebooting in 86400 seconds..