loop0: detected capacity change from 0 to 32768
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
gfs2: fsid=syz:syz.0: first mount done, others may mount
Zero length message leads to an empty skb
------------[ cut here ]------------
gfs2_rgrp_aops does not implement migrate_folio
WARNING: CPU: 0 PID: 5348 at mm/migrate.c:944 fallback_migrate_folio mm/migrate.c:942 [inline]
WARNING: CPU: 0 PID: 5348 at mm/migrate.c:944 move_to_new_folio+0x696/0x7a0 mm/migrate.c:996
Modules linked in:
CPU: 0 UID: 0 PID: 5348 Comm: syz.0.0 Not tainted 6.16.0-rc6-syzkaller-00281-gf4a40a4282f4 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:fallback_migrate_folio mm/migrate.c:942 [inline]
RIP: 0010:move_to_new_folio+0x696/0x7a0 mm/migrate.c:996
Code: 0d 01 90 42 80 7c 3d 00 00 74 0a 48 8b 7c 24 20 e8 2f 53 fe ff 48 8b 44 24 20 48 8b 30 48 c7 c7 20 bb 97 8b e8 ab b7 5e ff 90 <0f> 0b 90 90 49 bf 00 00 00 00 00 fc ff df e9 7e fd ff ff e8 22 d3
RSP: 0018:ffffc9000d45ec50 EFLAGS: 00010246
RAX: fde6e1409f692900 RBX: ffffea000045a6c0 RCX: 0000000000100000
RDX: ffffc9000ddaa000 RSI: 00000000000f2516 RDI: 00000000000f2517
RBP: 1ffff1100a606068 R08: ffff88801fc24293 R09: 1ffff11003f84852
R10: dffffc0000000000 R11: ffffed1003f84853 R12: ffffea00008c3d00
R13: ffff888053030220 R14: ffffea000045a6c8 R15: dffffc0000000000
FS:  00007f78d791b6c0(0000) GS:ffff88808d218000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000010000 CR3: 000000004098e000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 migrate_folio_move mm/migrate.c:1301 [inline]
 migrate_folios_move mm/migrate.c:1653 [inline]
 migrate_pages_batch+0x1c34/0x2830 mm/migrate.c:1900
 migrate_pages_sync mm/migrate.c:1930 [inline]
 migrate_pages+0x1bcc/0x2930 mm/migrate.c:2039
 compact_zone+0x23f4/0x4ad0 mm/compaction.c:2683
 compact_node mm/compaction.c:2952 [inline]
 compact_nodes mm/compaction.c:2974 [inline]
 sysctl_compaction_handler+0x3a4/0x7b0 mm/compaction.c:3025
 proc_sys_call_handler+0x509/0x7c0 fs/proc/proc_sysctl.c:601
 iter_file_splice_write+0x937/0x1000 fs/splice.c:738
 do_splice_from fs/splice.c:935 [inline]
 direct_splice_actor+0xfe/0x160 fs/splice.c:1158
 splice_direct_to_actor+0x5a8/0xcc0 fs/splice.c:1102
 do_splice_direct_actor fs/splice.c:1201 [inline]
 do_splice_direct+0x181/0x270 fs/splice.c:1227
 do_sendfile+0x4da/0x7e0 fs/read_write.c:1370
 __do_sys_sendfile64 fs/read_write.c:1425 [inline]
 __se_sys_sendfile64+0xd9/0x190 fs/read_write.c:1417
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f78d6b8e9a9
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:00007f78d791b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f78d6db5fa0 RCX: 00007f78d6b8e9a9
RDX: 0000200000000180 RSI: 0000000000000005 RDI: 0000000000000006
RBP: 00007f78d6c10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000003fffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f78d6db5fa0 R15: 00007ffeb4b62c78
 </TASK>