page:ffffea0001ba5080 count:1 mapcount:1 mapping:ffff8880998299f9 index:0xc42bf42 anon flags: 0x10708000008003e(referenced|uptodate|dirty|lru|active|swapbacked) raw: 010708000008003e ffffea0001ba4f48 ffffea0001ba50c8 ffff8880998299f9 raw: 000000000c42bf42 0000000000000000 0000000100000000 ffff8880aa204bc0 page dumped because: VM_BUG_ON_PAGE(page_ref_count(page)) page->mem_cgroup:ffff8880aa204bc0 ------------[ cut here ]------------ kernel BUG at mm/internal.h:77! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1048 Comm: khugepaged Not tainted 5.0.0+ #27 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:set_page_refcounted mm/internal.h:77 [inline] RIP: 0010:set_page_refcounted mm/internal.h:74 [inline] RIP: 0010:split_page+0x1e5/0x250 mm/page_alloc.c:2999 Code: 4c 89 e7 e8 5d 98 0c 00 0f 0b 48 c7 c6 20 09 72 87 4c 89 e7 e8 4c 98 0c 00 0f 0b 48 c7 c6 a0 09 72 87 4c 89 e7 e8 3b 98 0c 00 <0f> 0b 48 c7 c6 c0 08 72 87 4c 89 e7 e8 2a 98 0c 00 0f 0b 4c 89 f7 RSP: 0018:ffff8880a8387018 EFLAGS: 00010293 RAX: ffff8880a82c8140 RBX: ffffea0001ba50b4 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8199dda2 RDI: ffffed1015070de7 RBP: ffff8880a8387038 R08: 0000000000000021 R09: ffffed1015d05011 R10: ffffed1015d05010 R11: ffff8880ae828087 R12: ffffea0001ba5080 R13: dffffc0000000000 R14: ffffea0001ba6034 R15: ffffea0001ba5000 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000013dde90 CR3: 00000000a9935000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: split_map_pages+0x334/0x540 mm/compaction.c:83 isolate_freepages mm/compaction.c:1529 [inline] compaction_alloc+0x14ca/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:3770 __alloc_pages_slowpath+0x510/0x28b0 mm/page_alloc.c:4342 __alloc_pages_nodemask+0x57e/0x7e0 mm/page_alloc.c:4622 __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: ---[ end trace 9aaa6aaa02391f13 ]--- RIP: 0010:set_page_refcounted mm/internal.h:77 [inline] RIP: 0010:set_page_refcounted mm/internal.h:74 [inline] RIP: 0010:split_page+0x1e5/0x250 mm/page_alloc.c:2999 Code: 4c 89 e7 e8 5d 98 0c 00 0f 0b 48 c7 c6 20 09 72 87 4c 89 e7 e8 4c 98 0c 00 0f 0b 48 c7 c6 a0 09 72 87 4c 89 e7 e8 3b 98 0c 00 <0f> 0b 48 c7 c6 c0 08 72 87 4c 89 e7 e8 2a 98 0c 00 0f 0b 4c 89 f7 RSP: 0018:ffff8880a8387018 EFLAGS: 00010293 RAX: ffff8880a82c8140 RBX: ffffea0001ba50b4 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8199dda2 RDI: ffffed1015070de7 RBP: ffff8880a8387038 R08: 0000000000000021 R09: ffffed1015d05011 R10: ffffed1015d05010 R11: ffff8880ae828087 R12: ffffea0001ba5080 R13: dffffc0000000000 R14: ffffea0001ba6034 R15: ffffea0001ba5000 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000070b158 CR3: 0000000090580000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400