BUG: unable to handle kernel paging request at fffff10843ffe200
#PF error: [normal kernel read fault]
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1049 Comm: khugepaged Not tainted 5.1.0-rc2-next-20190327 #12
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__nr_to_section include/linux/mmzone.h:1223 [inline]
RIP: 0010:__pfn_to_section include/linux/mmzone.h:1296 [inline]
RIP: 0010:get_pageblock_bitmap mm/page_alloc.c:390 [inline]
RIP: 0010:set_pfnblock_flags_mask+0x6c/0x360 mm/page_alloc.c:467
Code: 35 39 8b be 08 48 85 f6 0f 84 c6 01 00 00 48 89 d7 48 c1 ef 16 48 8d 1c fe 48 be 00 00 00 00 00 fc ff df 48 89 df 48 c1 ef 03 <80> 3c 37 00 0f 85 8e 02 00 00 4c 8b 33 4d 85 f6 74 0a 83 e0 7f 48
RSP: 0018:ffff8880a83bf0a8 EFLAGS: 00010a06
RAX: 0001fc0000000009 RBX: ffffa8421fff1000 RCX: 0000000000000003
RDX: fe0000000004f800 RSI: dffffc0000000000 RDI: 1ffff50843ffe200
RBP: ffff8880a83bf0f8 R08: 0000000000000001 R09: ffffed1015d25bd0
R10: ffffed1015d25bcf R11: ffff8880ae92de7b R12: 0000000000000001
R13: 0000000000000001 R14: ffff8880a83bf550 R15: 7fffea00013e0000
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff10843ffe200 CR3: 00000000a59d5000 CR4: 00000000001406e0
Call Trace:
 fast_isolate_around mm/compaction.c:1240 [inline]
 fast_isolate_freepages mm/compaction.c:1411 [inline]
 isolate_freepages mm/compaction.c:1431 [inline]
 compaction_alloc+0x1b02/0x2290 mm/compaction.c:1543
 unmap_and_move mm/migrate.c:1175 [inline]
 migrate_pages+0x484/0x2cd0 mm/migrate.c:1426
 compact_zone+0x1b56/0x38d0 mm/compaction.c:2174
 compact_zone_order+0x1af/0x2a0 mm/compaction.c:2299
 try_to_compact_pages+0x268/0xaf0 mm/compaction.c:2351
 __alloc_pages_direct_compact+0x154/0x4d0 mm/page_alloc.c:3883
 __alloc_pages_slowpath+0xb14/0x2900 mm/page_alloc.c:4527
 __alloc_pages_nodemask+0x57e/0x7e0 mm/page_alloc.c:4735
 __alloc_pages include/linux/gfp.h:473 [inline]
 __alloc_pages_node include/linux/gfp.h:486 [inline]
 khugepaged_alloc_page+0x96/0x160 mm/khugepaged.c:773
 collapse_huge_page+0x130/0x3f60 mm/khugepaged.c:962
 khugepaged_scan_pmd mm/khugepaged.c:1215 [inline]
 khugepaged_scan_mm_slot mm/khugepaged.c:1725 [inline]
 khugepaged_do_scan mm/khugepaged.c:1806 [inline]
 khugepaged+0x28c3/0x3f40 mm/khugepaged.c:1851
 kthread+0x357/0x430 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
CR2: fffff10843ffe200
---[ end trace 5b33e841676d0494 ]---
RIP: 0010:__nr_to_section include/linux/mmzone.h:1223 [inline]
RIP: 0010:__pfn_to_section include/linux/mmzone.h:1296 [inline]
RIP: 0010:get_pageblock_bitmap mm/page_alloc.c:390 [inline]
RIP: 0010:set_pfnblock_flags_mask+0x6c/0x360 mm/page_alloc.c:467
Code: 35 39 8b be 08 48 85 f6 0f 84 c6 01 00 00 48 89 d7 48 c1 ef 16 48 8d 1c fe 48 be 00 00 00 00 00 fc ff df 48 89 df 48 c1 ef 03 <80> 3c 37 00 0f 85 8e 02 00 00 4c 8b 33 4d 85 f6 74 0a 83 e0 7f 48
RSP: 0018:ffff8880a83bf0a8 EFLAGS: 00010a06
RAX: 0001fc0000000009 RBX: ffffa8421fff1000 RCX: 0000000000000003
RDX: fe0000000004f800 RSI: dffffc0000000000 RDI: 1ffff50843ffe200
RBP: ffff8880a83bf0f8 R08: 0000000000000001 R09: ffffed1015d25bd0
R10: ffffed1015d25bcf R11: ffff8880ae92de7b R12: 0000000000000001
R13: 0000000000000001 R14: ffff8880a83bf550 R15: 7fffea00013e0000
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff10843ffe200 CR3: 00000000a59d5000 CR4: 00000000001406e0