compact_zone+0x1ad3/0x3760 mm/compaction.c:2432 compact_node+0x129/0x1f0 mm/compaction.c:2714 compact_nodes mm/compaction.c:2730 [inline] sysctl_compaction_handler+0x113/0x160 mm/compaction.c:2772 proc_sys_call_handler+0x4a1/0x6e0 fs/proc/proc_sysctl.c:611 call_write_iter include/linux/fs.h:2188 [inline] new_sync_write+0x315/0x4d0 fs/read_write.c:504 vfs_write+0x7c0/0xac0 fs/read_write.c:591 ksys_write+0x127/0x250 fs/read_write.c:644 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 ------------[ cut here ]------------ kernel BUG at mm/filemap.c:1538! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 2613 Comm: syz-executor.1 Not tainted 5.19.0-rc3-next-20220624-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:folio_unlock+0x196/0x1d0 mm/filemap.c:1538 Code: de 41 0f 94 c4 44 89 e7 e8 17 e8 d8 ff 41 38 dc 0f 85 23 ff ff ff e8 79 ec d8 ff 48 c7 c6 c0 8f d6 89 48 89 ef e8 1a a8 0e 00 <0f> 0b 48 89 df e8 30 3e 25 00 e9 9a fe ff ff 48 89 df e8 23 3e 25 RSP: 0018:ffffc900030ffcc8 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc90005a39000 RDX: 0000000000040000 RSI: ffffffff81a1c246 RDI: 0000000000000003 RBP: ffffea00003c0000 R08: 0000000000000003 R09: 000000000000ffff R10: 000000000000ffff R11: 0000000000000001 R12: ffffea00003c0000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880252a0000 FS: 00007f15d1ffe700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ee21000 CR3: 0000000079d39000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hugetlbfs_fallocate+0x8a1/0x1600 fs/hugetlbfs/inode.c:787 vfs_fallocate+0x487/0xe00 fs/open.c:323 ksys_fallocate fs/open.c:346 [inline] __do_sys_fallocate fs/open.c:354 [inline] __se_sys_fallocate fs/open.c:352 [inline] __x64_sys_fallocate+0xcf/0x140 fs/open.c:352 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7f15d3089109 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f15d1ffe168 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007f15d319bf60 RCX: 00007f15d3089109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f15d30e305d R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000035e R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe0017063f R14: 00007f15d1ffe300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:folio_unlock+0x196/0x1d0 mm/filemap.c:1538 Code: de 41 0f 94 c4 44 89 e7 e8 17 e8 d8 ff 41 38 dc 0f 85 23 ff ff ff e8 79 ec d8 ff 48 c7 c6 c0 8f d6 89 48 89 ef e8 1a a8 0e 00 <0f> 0b 48 89 df e8 30 3e 25 00 e9 9a fe ff ff 48 89 df e8 23 3e 25 RSP: 0018:ffffc900030ffcc8 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc90005a39000 RDX: 0000000000040000 RSI: ffffffff81a1c246 RDI: 0000000000000003 RBP: ffffea00003c0000 R08: 0000000000000003 R09: 000000000000ffff R10: 000000000000ffff R11: 0000000000000001 R12: ffffea00003c0000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880252a0000 FS: 00007f15d1ffe700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ee21000 CR3: 0000000079d39000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400