INFO: task segctord:2000 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:segctord        state:D stack:27928 pid:2000  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
 __down_write_common kernel/locking/rwsem.c:1305 [inline]
 __down_write kernel/locking/rwsem.c:1314 [inline]
 down_write+0x231/0x270 kernel/locking/rwsem.c:1563
 nilfs_transaction_lock+0x246/0x4b0 fs/nilfs2/segment.c:357
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2486 [inline]
 nilfs_segctor_thread+0x593/0x11c0 fs/nilfs2/segment.c:2570
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1ba/0x420 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
 watchdog+0xcf5/0xd40 kernel/hung_task.c:377
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1994 Comm: syz-executor.5 Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:debug_check_no_locks_freed+0x0/0x480 kernel/locking/lockdep.c:6440
Code: 02 03 e9 e0 fd ff ff 48 c7 c7 a0 02 9f 8c 4c 89 fe e8 14 07 02 03 e9 57 ff ff ff e8 3a df cb 08 66 2e 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec c0 00
RSP: 0018:ffffc90015bae9b0 EFLAGS: 00000246
RAX: 0000000000000380 RBX: ffff88801bfa5dc0 RCX: fffffffe0169cb00
RDX: ffffc90015baea18 RSI: 0000000000000700 RDI: ffff88803d29cb00
RBP: ffff88803d29cb00 R08: ffffffff813bf637 R09: ffffed1007b51b12
R10: ffffed1007b51b12 R11: 1ffff11007b51b11 R12: 0000000000000000
R13: ffffc90015baea18 R14: 0000000000000000 R15: ffffc90015baea20
FS:  00007fc7d23b8700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f65cbbfd718 CR3: 000000008709c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 slab_free_hook mm/slub.c:1696 [inline]
 slab_free_freelist_hook+0xbe/0x1a0 mm/slub.c:1750
 slab_free mm/slub.c:3661 [inline]
 kmem_cache_free+0x94/0x1d0 mm/slub.c:3683
 nilfs_btree_lookup+0x1a7/0x1d0 fs/nilfs2/btree.c:688
 nilfs_bmap_lookup_at_level+0xd8/0x350 fs/nilfs2/bmap.c:69
 nilfs_bmap_lookup fs/nilfs2/bmap.h:170 [inline]
 nilfs_mdt_submit_block+0x23d/0x520 fs/nilfs2/mdt.c:142
 nilfs_mdt_read_block+0xa3/0x460 fs/nilfs2/mdt.c:176
 nilfs_mdt_get_block+0x104/0x820 fs/nilfs2/mdt.c:251
 nilfs_palloc_get_block+0x142/0x240 fs/nilfs2/alloc.c:216
 nilfs_palloc_get_entry_block+0x1e8/0x2e0 fs/nilfs2/alloc.c:318
 nilfs_dat_translate+0x8f/0x4d0 fs/nilfs2/dat.c:391
 nilfs_bmap_lookup_at_level+0x1d8/0x350 fs/nilfs2/bmap.c:75
 nilfs_bmap_lookup fs/nilfs2/bmap.h:170 [inline]
 nilfs_mdt_submit_block+0x23d/0x520 fs/nilfs2/mdt.c:142
 nilfs_mdt_read_block+0xa3/0x460 fs/nilfs2/mdt.c:176
 nilfs_mdt_get_block+0x104/0x820 fs/nilfs2/mdt.c:251
 nilfs_palloc_get_block+0x142/0x240 fs/nilfs2/alloc.c:216
 nilfs_palloc_get_bitmap_block fs/nilfs2/alloc.c:284 [inline]
 nilfs_palloc_prepare_alloc_entry+0x76c/0xfe0 fs/nilfs2/alloc.c:535
 nilfs_ifile_create_inode+0xd2/0x2f0 fs/nilfs2/ifile.c:64
 nilfs_new_inode+0x1f7/0xa70 fs/nilfs2/inode.c:347
 nilfs_create+0xdc/0x2d0 fs/nilfs2/namei.c:85
 lookup_open fs/namei.c:3413 [inline]
 open_last_lookups fs/namei.c:3481 [inline]
 path_openat+0x12d0/0x2df0 fs/namei.c:3710
 do_filp_open+0x264/0x4f0 fs/namei.c:3740
 do_sys_openat2+0x124/0x4e0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_open fs/open.c:1334 [inline]
 __se_sys_open fs/open.c:1330 [inline]
 __x64_sys_open+0x221/0x270 fs/open.c:1330
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc7d168b5a9
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:00007fc7d23b8168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fc7d17abf80 RCX: 00007fc7d168b5a9
RDX: 0000000000000000 RSI: 0000000000147042 RDI: 0000000020000040
RBP: 00007fc7d16e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd416a646f R14: 00007fc7d23b8300 R15: 0000000000022000
 </TASK>