------------[ cut here ]------------ jfs_metapage_aops does not implement migrate_folio WARNING: CPU: 0 PID: 6870 at mm/migrate.c:955 fallback_migrate_folio mm/migrate.c:953 [inline] WARNING: CPU: 0 PID: 6870 at mm/migrate.c:955 move_to_new_folio+0x70e/0x840 mm/migrate.c:1007 Modules linked in: CPU: 0 UID: 0 PID: 6870 Comm: syz.3.196 Not tainted 6.15.0-rc1-next-20250411-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:fallback_migrate_folio mm/migrate.c:953 [inline] RIP: 0010:move_to_new_folio+0x70e/0x840 mm/migrate.c:1007 Code: b8 00 00 00 00 00 fc ff df 41 80 7c 05 00 00 74 08 4c 89 e7 e8 73 2d fe ff 49 8b 34 24 48 c7 c7 00 8b 57 8c e8 d3 0b 53 ff 90 <0f> 0b 90 90 e9 0a fd ff ff e8 74 f6 93 ff 90 0f 0b 90 eb a7 e8 69 RSP: 0018:ffffc900045aeb30 EFLAGS: 00010246 RAX: d74fd979f2566d00 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000e489000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffea0000c98800 R08: ffffffff81829232 R09: 1ffff110170c4852 R10: dffffc0000000000 R11: ffffed10170c4853 R12: ffff8880612710a8 R13: 1ffff1100c24e215 R14: ffffffff8c839248 R15: ffff888061270f88 FS: 00007f855ea5e6c0(0000) GS:ffff888124f80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 000000003477c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: migrate_folio_move mm/migrate.c:1312 [inline] migrate_folios_move mm/migrate.c:1664 [inline] migrate_pages_batch+0x1e86/0x30b0 mm/migrate.c:1911 migrate_pages_sync mm/migrate.c:1968 [inline] migrate_pages+0x24f8/0x3470 mm/migrate.c:2050 compact_zone+0x365d/0x4dd0 mm/compaction.c:2689 compact_node mm/compaction.c:2958 [inline] compact_nodes mm/compaction.c:2980 [inline] sysctl_compaction_handler+0x498/0x9a0 mm/compaction.c:3031 proc_sys_call_handler+0x54b/0x820 fs/proc/proc_sysctl.c:601 iter_file_splice_write+0xbdf/0x1530 fs/splice.c:738 do_splice_from fs/splice.c:935 [inline] direct_splice_actor+0x11b/0x220 fs/splice.c:1158 splice_direct_to_actor+0x595/0xc90 fs/splice.c:1102 do_splice_direct_actor fs/splice.c:1201 [inline] do_splice_direct+0x281/0x3d0 fs/splice.c:1227 do_sendfile+0x582/0x8d0 fs/read_write.c:1368 __do_sys_sendfile64 fs/read_write.c:1423 [inline] __se_sys_sendfile64+0x102/0x1e0 fs/read_write.c:1415 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f855db8d169 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f855ea5e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f855dda6080 RCX: 00007f855db8d169 RDX: 00002000000000c0 RSI: 0000000000000006 RDI: 0000000000000007 RBP: 00007f855dc0e990 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f855dda6080 R15: 00007ffe70b954f8