entry_SYSCALL_64_after_hwframe+0x63/0xcd ------------[ cut here ]------------ kernel BUG at include/linux/page-flags.h:314! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 42 Comm: kcompactd0 Not tainted 6.6.0-rc1-syzkaller-00115-g9fdfb15a3dbf #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:folio_flags+0x1b7/0x1f0 include/linux/page-flags.h:314 Code: 06 41 83 e4 01 44 89 e6 e8 56 68 b1 ff 45 84 e4 0f 85 c9 fe ff ff e8 18 6d b1 ff 48 c7 c6 00 28 9a 8a 48 89 ef e8 19 1c ef ff <0f> 0b e8 e2 6d 06 00 e9 6c fe ff ff 48 89 ef e8 d5 6d 06 00 eb b7 RSP: 0018:ffffc90000bc78c8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888014384bc0 RSI: ffffffff81d55ff7 RDI: 0000000000000000 RBP: ffffea0000996600 R08: 0000000000000000 R09: fffffbfff1d9ad82 R10: ffffffff8ecd6c17 R11: 0000000000000000 R12: 0000000000000000 R13: ffffea0000996440 R14: ffffea0000996600 R15: 0000000000026598 FS: 0000000000000000(0000) GS:ffff88806b800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f526000 CR3: 000000002aa5b000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: folio_test_hugetlb include/linux/page-flags.h:835 [inline] PageHuge+0x215/0x2b0 mm/hugetlb.c:2050 isolate_migratepages_block+0x61b/0x4a40 mm/compaction.c:950 isolate_migratepages mm/compaction.c:2053 [inline] compact_zone+0x18f6/0x4020 mm/compaction.c:2491 proactive_compact_node+0x118/0x1d0 mm/compaction.c:2780 kcompactd+0x710/0xd80 mm/compaction.c:3100 kthread+0x33a/0x430 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:folio_flags+0x1b7/0x1f0 include/linux/page-flags.h:314 Code: 06 41 83 e4 01 44 89 e6 e8 56 68 b1 ff 45 84 e4 0f 85 c9 fe ff ff e8 18 6d b1 ff 48 c7 c6 00 28 9a 8a 48 89 ef e8 19 1c ef ff <0f> 0b e8 e2 6d 06 00 e9 6c fe ff ff 48 89 ef e8 d5 6d 06 00 eb b7 RSP: 0018:ffffc90000bc78c8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888014384bc0 RSI: ffffffff81d55ff7 RDI: 0000000000000000 RBP: ffffea0000996600 R08: 0000000000000000 R09: fffffbfff1d9ad82 R10: ffffffff8ecd6c17 R11: 0000000000000000 R12: 0000000000000000 R13: ffffea0000996440 R14: ffffea0000996600 R15: 0000000000026598 FS: 0000000000000000(0000) GS:ffff88806b900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd1d92cd38 CR3: 000000000c976000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400