------------[ cut here ]------------ WARNING: CPU: 0 PID: 85 at mm/vmscan.c:3140 folio_update_gen+0x23d/0x250 mm/vmscan.c:3140 Modules linked in: CPU: 0 UID: 0 PID: 85 Comm: kswapd0 Not tainted 6.12.0-rc5-next-20241101-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:folio_update_gen+0x23d/0x250 mm/vmscan.c:3140 Code: 00 48 3b 4c 24 60 75 2a 48 c1 e8 29 83 e0 07 ff c8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 74 c0 bf ff 90 <0f> 0b 90 e9 91 fe ff ff e8 46 9f ee 09 66 0f 1f 44 00 00 90 90 90 RSP: 0018:ffffc900020deb40 EFLAGS: 00010293 RAX: ffffffff81d5fd8c RBX: 0000000000000000 RCX: ffff88801cbb8000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900020dec00 R08: ffffffff81d5fc19 R09: 1ffff1100d562d00 R10: dffffc0000000000 R11: ffffed100d562d01 R12: 0000000000000003 R13: 1ffff9200041bd70 R14: ffffc900020deb80 R15: ffffea0001308000 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7fecc34866 CR3: 00000000223a2000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: walk_pmd_range_locked+0x92b/0xf90 mm/vmscan.c:3514 walk_pmd_range mm/vmscan.c:3594 [inline] walk_pud_range+0x1f16/0x2310 mm/vmscan.c:3621 walk_p4d_range mm/pagewalk.c:259 [inline] walk_pgd_range+0x4a9/0x17e0 mm/pagewalk.c:305 __walk_page_range+0x15f/0x700 mm/pagewalk.c:412 walk_page_range_mm+0x58f/0x7c0 mm/pagewalk.c:505 walk_mm mm/vmscan.c:3665 [inline] try_to_inc_max_seq+0xdd9/0x13b0 mm/vmscan.c:3902 get_nr_to_scan mm/vmscan.c:4740 [inline] try_to_shrink_lruvec+0xb30/0xc70 mm/vmscan.c:4783 shrink_one+0x3b9/0x850 mm/vmscan.c:4832 shrink_many mm/vmscan.c:4895 [inline] lru_gen_shrink_node mm/vmscan.c:4973 [inline] shrink_node+0x37cd/0x3e60 mm/vmscan.c:5954 kswapd_shrink_node mm/vmscan.c:6783 [inline] balance_pgdat mm/vmscan.c:6975 [inline] kswapd+0x1ca9/0x3700 mm/vmscan.c:7244 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244