------------[ cut here ]------------ kernel BUG at mm/vmstat.c:1420! invalid opcode: 0000 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 689 Comm: kworker/1:1 Not tainted 4.4.185 #14 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: vmstat vmstat_update task: ffff8800baf26580 ti: ffff8800bb35c000 task.ti: ffff8800bb35c000 RIP: 0010:[] [] vmstat_update mm/vmstat.c:1420 [inline] RIP: 0010:[] [] vmstat_update+0x8c/0xc0 mm/vmstat.c:1391 RSP: 0018:ffff8800bb35fd70 EFLAGS: 00010293 RAX: 0000000000000001 RBX: ffff88012b028700 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff82f4d2cf RDI: ffffffff82f07b52 RBP: ffff8800bb35fd90 R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88012c1168c0 R13: ffffe8ffffd0a400 R14: ffff88012c110e20 R15: ffffffff83436b78 FS: 0000000000000000(0000) GS:ffff88012c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004c3500 CR3: 000000000320b000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff88012b028700 ffff88012c1168c0 ffffe8ffffd0a400 ffff88012c110e20 ffff8800bb35fe00 ffffffff811915d7 ffffffff81191544 ffff88012c116a08 0000000000000000 ffffffff84310f90 ffffffff83da5a00 0000000000000000 Call Trace: [] process_one_work+0x237/0x7f0 kernel/workqueue.c:2064 [] worker_thread+0x49/0x460 kernel/workqueue.c:2196 [] kthread+0xe3/0x100 drivers/block/aoe/aoecmd.c:1311 [] ret_from_fork+0x3f/0x70 arch/x86/entry/entry_64.S:510 Code: 41 5c 41 5d 41 5e 5d c3 e8 62 80 62 00 83 f8 3f 77 1b 89 c0 f0 48 0f ab 05 4a 4c 07 03 72 0c 48 83 c4 08 41 5c 41 5d 41 5e 5d c3 <0f> 0b 80 3d 0b b2 16 02 00 75 dc be 75 00 00 00 48 c7 c7 3f ee RIP [] vmstat_update+0x8c/0xc0 mm/vmstat.c:1422 RSP ---[ end trace 40fb3eeea802ad60 ]---