loop4: detected capacity change from 0 to 32768
JBD2: Ignoring recovery information on journal
ocfs2: Mounting device (7,4) on (node local, slot 0) with ordered data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:1383!
Internal error: Oops - BUG: 00000000f2000800 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 7688 Comm: syz.4.214 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : ocfs2_block_group_set_bits+0x784/0x8ec fs/ocfs2/suballoc.c:1383
lr : ocfs2_block_group_set_bits+0x784/0x8ec fs/ocfs2/suballoc.c:1383
sp : ffff80009fbb7260
x29: ffff80009fbb7320 x28: ffff0000f858ddf8 x27: ffff0000dc65c000
x26: ffff0000cba3c370 x25: ffff0000fa1f8000 x24: 1ffff00013f76e58
x23: ffff0000fa1f800c x22: dfff800000000000 x21: 0000000000000029
x20: 0000000000000042 x19: 0000000000000000 x18: 1fffe00033781890
x17: ffff80008f86e000 x16: ffff80008af6aedc x15: 0000000000000001
x14: 0000000000000000 x13: 00000000fffffffc x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000c4be9c80 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000042 x4 : 0000000000000007 x3 : ffff0000cba57bc8
x2 : ffff0000fa1f8000 x1 : 0000000000000029 x0 : 0000000000000042
Call trace:
 ocfs2_block_group_set_bits+0x784/0x8ec fs/ocfs2/suballoc.c:1383 (P)
 ocfs2_move_extent fs/ocfs2/move_extents.c:693 [inline]
 __ocfs2_move_extents_range fs/ocfs2/move_extents.c:865 [inline]
 ocfs2_move_extents+0x213c/0x2e78 fs/ocfs2/move_extents.c:937
 ocfs2_ioctl_move_extents+0x448/0x614 fs/ocfs2/move_extents.c:1069
 ocfs2_ioctl+0x1c4/0x738 fs/ocfs2/ioctl.c:942
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:583
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
Code: 17ffffa0 97944710 d4210000 9794470e (d4210000) 
---[ end trace 0000000000000000 ]---