------------[ cut here ]------------ kernel BUG at mm/page_alloc.c:3126! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1046 Comm: kcompactd0 Not tainted 5.0.0-rc6-next-20190215 #36 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__isolate_free_page+0x3c9/0x4c0 mm/page_alloc.c:3126 Code: 41 5d 41 5e 41 5f 5d c3 48 c7 c6 a0 fc 73 87 4c 89 ff e8 0a 26 f8 ff 0f 0b 48 c7 c6 a0 f8 73 87 4c 89 ff e8 f9 25 f8 ff 0f 0b <0f> 0b 4c 89 f7 e8 dd 46 08 00 e9 d0 fc ff ff 4c 89 f7 e8 d0 46 08 RSP: 0018:ffff88801e2e7850 EFLAGS: 00010007 RAX: 0000000000000000 RBX: 0000000000000008 RCX: dffffc0000000000 RDX: 1ffff11025fff923 RSI: 0000000000000008 RDI: ffffffff895d55f8 RBP: ffff88801e2e7898 R08: ffff88801e28e0c0 R09: ffffed1003c5cf02 R10: ffffed1003c5cf01 R11: 0000000000000003 R12: 0000000000000000 R13: 0000000000000003 R14: ffff88812fffc918 R15: ffff88812fffc8e8 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000f87978 CR3: 0000000030837000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fast_isolate_freepages mm/compaction.c:1358 [inline] isolate_freepages mm/compaction.c:1431 [inline] compaction_alloc+0xa9b/0x2290 mm/compaction.c:1543 unmap_and_move mm/migrate.c:1175 [inline] migrate_pages+0x484/0x2c60 mm/migrate.c:1415 compact_zone+0x1b56/0x38d0 mm/compaction.c:2174 kcompactd_do_work+0x303/0xaa0 mm/compaction.c:2555 kcompactd+0x247/0x890 mm/compaction.c:2648 kthread+0x357/0x430 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Modules linked in: ======================================================