INFO: task segctord:12352 blocked for more than 143 seconds.
      Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:segctord        state:D stack:29112 pid:12352 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5183 [inline]
 __schedule+0x91f/0xdf0 kernel/sched/core.c:6495
 schedule+0xcb/0x190 kernel/sched/core.c:6571
 rwsem_down_write_slowpath+0xf1c/0x1350 kernel/locking/rwsem.c:1182
 __down_write_common kernel/locking/rwsem.c:1297 [inline]
 __down_write kernel/locking/rwsem.c:1306 [inline]
 down_write+0x163/0x170 kernel/locking/rwsem.c:1553
 nilfs_transaction_lock+0x246/0x4b0 fs/nilfs2/segment.c:357
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2482 [inline]
 nilfs_segctor_thread+0x52a/0x1180 fs/nilfs2/segment.c:2566
 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 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
 nmi_cpu_backtrace+0x425/0x450 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x169/0x280 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
 watchdog+0xcd5/0xd20 kernel/hung_task.c:369
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 15572 Comm: syz-executor.2 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:debug_check_no_obj_freed+0x17d/0x650 lib/debugobjects.c:1020
Code: 04 00 00 49 89 c4 49 89 c6 49 c1 ee 03 41 80 3c 16 00 74 12 4c 89 e7 e8 e1 8f a3 fd 48 ba 00 00 00 00 00 fc ff df 49 8b 04 24 <48> 89 44 24 28 49 8d 6c 24 18 49 89 ef 49 c1 ef 03 41 80 3c 17 00
RSP: 0018:ffffc9000a3df2c8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff888096f76000 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffff88803462f058 RDI: ffffc9000a3df1a0
RBP: ffff88807338af68 R08: dffffc0000000000 R09: fffff5200147be34
R10: fffff5200147be35 R11: 1ffff9200147be34 R12: ffff88807338af88
R13: 000000000000000a R14: 1ffff1100e6715f1 R15: 1ffff1100e6715ed
FS:  00007f2e03ffe700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c03ee75000 CR3: 0000000078901000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 free_pages_prepare mm/page_alloc.c:1455 [inline]
 free_pcp_prepare+0x2cc/0x900 mm/page_alloc.c:1499
 free_unref_page_prepare mm/page_alloc.c:3380 [inline]
 free_unref_page_list+0xb4/0x7b0 mm/page_alloc.c:3522
 release_pages+0x22c3/0x2540 mm/swap.c:1012
 __pagevec_release+0x7d/0xf0 mm/swap.c:1032
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 truncate_inode_pages_range+0x472/0x1780 mm/truncate.c:373
 __jbd2_journal_erase fs/jbd2/journal.c:1827 [inline]
 jbd2_journal_flush+0x796/0xca0 fs/jbd2/journal.c:2495
 ext4_ioctl_checkpoint fs/ext4/ioctl.c:1082 [inline]
 __ext4_ioctl fs/ext4/ioctl.c:1587 [inline]
 ext4_ioctl+0x322c/0x5510 fs/ext4/ioctl.c:1607
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856
 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: 0033:0x7f2e0508b5a9
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:00007f2e03ffe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f2e051abf80 RCX: 00007f2e0508b5a9
RDX: 0000000020000000 RSI: 000000004004662b RDI: 0000000000000007
RBP: 00007f2e050e6580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff90ebd54f R14: 00007f2e03ffe300 R15: 0000000000022000
 </TASK>