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kernel BUG at mm/vmstat.c:1420!
invalid opcode: 0000 [#1] PREEMPT SMP 
Modules linked in:
CPU: 1 PID: 457 Comm: kworker/1:1 Not tainted 4.4.184 #12
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: vmstat vmstat_update
task: ffff8800bbb287c0 ti: ffff8800bbb2c000 task.ti: ffff8800bbb2c000
RIP: 0010:[<ffffffff8129c4ec>]  [<ffffffff8129c4ec>] vmstat_update mm/vmstat.c:1420 [inline]
RIP: 0010:[<ffffffff8129c4ec>]  [<ffffffff8129c4ec>] vmstat_update+0x8c/0xc0 mm/vmstat.c:1391
RSP: 0018:ffff8800bbb2fd70  EFLAGS: 00010293
RAX: 0000000000000001 RBX: ffff8800bba17040 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff82f4c8c8 RDI: ffffffff82f07192
RBP: ffff8800bbb2fd90 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88012c1168c0
R13: ffffe8ffffd0a400 R14: ffff88012c110e20 R15: ffffffff834369f8
FS:  0000000000000000(0000) GS:ffff88012c100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558ebec28000 CR3: 00000000b6311000 CR4: 00000000001406f0
Stack:
 ffff8800bba17040 ffff88012c1168c0 ffffe8ffffd0a400 ffff88012c110e20
 ffff8800bbb2fe00 ffffffff81191677 ffffffff811915e4 ffff88012c116a08
 0000000000000000 ffffffff84310f90 ffffffff83da5a00 0000000000000000
Call Trace:
 [<ffffffff81191677>] process_one_work+0x237/0x7f0 kernel/workqueue.c:2064
 [<ffffffff81191c79>] worker_thread+0x49/0x460 kernel/workqueue.c:2196
 [<ffffffff81196e83>] kthread+0xe3/0x100 drivers/block/aoe/aoecmd.c:1311
 [<ffffffff8264d86f>] ret_from_fork+0x3f/0x70 arch/x86/entry/entry_64.S:510
Code: 41 5c 41 5d 41 5e 5d c3 e8 32 82 62 00 83 f8 3f 77 1b 89 c0 f0 48 0f ab 05 ba 4a 07 03 72 0c 48 83 c4 08 41 5c 41 5d 41 5e 5d c3 <0f> 0b 80 3d bd ae 16 02 00 75 dc be 75 00 00 00 48 c7 c7 67 e4 
RIP  [<ffffffff8129c4ec>] vmstat_update+0x8c/0xc0 mm/vmstat.c:1422
 RSP <ffff8800bbb2fd70>
---[ end trace b0abbf75bdd90185 ]---