INFO: task kworker/u4:0:9 blocked for more than 143 seconds.
      Not tainted 6.2.0-rc6-syzkaller-00273-g837c07cf68fe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:0    state:D
 stack:26728 pid:9     ppid:2      flags:0x00004000
Workqueue: writeback wb_workfn
 (flush-7:4)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5293 [inline]
 __schedule+0xb8a/0x5450 kernel/sched/core.c:6606
 schedule+0xde/0x1b0 kernel/sched/core.c:6682
 schedule_timeout+0x1e1/0x2a0 kernel/time/timer.c:2143
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
 f2fs_issue_checkpoint+0x35c/0x460 fs/f2fs/checkpoint.c:1887
 f2fs_sync_fs+0x244/0x4c0 fs/f2fs/super.c:1669
 f2fs_balance_fs_bg+0xc95/0xf40 fs/f2fs/segment.c:500
 f2fs_write_node_pages+0x14a/0xd60 fs/f2fs/node.c:2109
 do_writepages+0x1af/0x690 mm/page-writeback.c:2581
 __writeback_single_inode+0x159/0x1440 fs/fs-writeback.c:1598
 writeback_sb_inodes+0x54d/0xf90 fs/fs-writeback.c:1889
 __writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1960
 wb_writeback+0x8d6/0xd70 fs/fs-writeback.c:2065
 wb_check_old_data_flush fs/fs-writeback.c:2165 [inline]
 wb_do_writeback fs/fs-writeback.c:2218 [inline]
 wb_workfn+0x871/0x12f0 fs/fs-writeback.c:2246
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x669/0x1090 kernel/workqueue.c:2436
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
INFO: task kworker/u4:2:41 blocked for more than 145 seconds.
      Not tainted 6.2.0-rc6-syzkaller-00273-g837c07cf68fe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:2    state:D
 stack:23912 pid:41    ppid:2      flags:0x00004000
Workqueue: writeback wb_workfn
 (flush-7:0)

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5293 [inline]
 __schedule+0xb8a/0x5450 kernel/sched/core.c:6606
 schedule+0xde/0x1b0 kernel/sched/core.c:6682
 schedule_timeout+0x1e1/0x2a0 kernel/time/timer.c:2143
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
 f2fs_issue_checkpoint+0x35c/0x460 fs/f2fs/checkpoint.c:1887
 f2fs_sync_fs+0x244/0x4c0 fs/f2fs/super.c:1669
 f2fs_balance_fs_bg+0xc95/0xf40 fs/f2fs/segment.c:500
 f2fs_write_node_pages+0x14a/0xd60 fs/f2fs/node.c:2109
 do_writepages+0x1af/0x690 mm/page-writeback.c:2581
 __writeback_single_inode+0x159/0x1440 fs/fs-writeback.c:1598
 writeback_sb_inodes+0x54d/0xf90 fs/fs-writeback.c:1889
 __writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1960
 wb_writeback+0x8d6/0xd70 fs/fs-writeback.c:2065
 wb_check_old_data_flush fs/fs-writeback.c:2165 [inline]
 wb_do_writeback fs/fs-writeback.c:2218 [inline]
 wb_workfn+0x871/0x12f0 fs/fs-writeback.c:2246
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x669/0x1090 kernel/workqueue.c:2436
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
INFO: task kworker/u4:4:56 blocked for more than 148 seconds.
      Not tainted 6.2.0-rc6-syzkaller-00273-g837c07cf68fe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:4    state:D
 stack:27192 pid:56    ppid:2      flags:0x00004000
Workqueue: writeback wb_workfn
 (flush-7:5)

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5293 [inline]
 __schedule+0xb8a/0x5450 kernel/sched/core.c:6606
 schedule+0xde/0x1b0 kernel/sched/core.c:6682
 schedule_timeout+0x1e1/0x2a0 kernel/time/timer.c:2143
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
 f2fs_issue_checkpoint+0x35c/0x460 fs/f2fs/checkpoint.c:1887
 f2fs_sync_fs+0x244/0x4c0 fs/f2fs/super.c:1669
 f2fs_balance_fs_bg+0xc95/0xf40 fs/f2fs/segment.c:500
 f2fs_write_node_pages+0x14a/0xd60 fs/f2fs/node.c:2109
 do_writepages+0x1af/0x690 mm/page-writeback.c:2581
 __writeback_single_inode+0x159/0x1440 fs/fs-writeback.c:1598
 writeback_sb_inodes+0x54d/0xf90 fs/fs-writeback.c:1889
 __writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1960
 wb_writeback+0x8d6/0xd70 fs/fs-writeback.c:2065
 wb_check_old_data_flush fs/fs-writeback.c:2165 [inline]
 wb_do_writeback fs/fs-writeback.c:2218 [inline]
 wb_workfn+0x871/0x12f0 fs/fs-writeback.c:2246
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x669/0x1090 kernel/workqueue.c:2436
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
INFO: task kworker/u4:5:1029 blocked for more than 150 seconds.
      Not tainted 6.2.0-rc6-syzkaller-00273-g837c07cf68fe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:5    state:D
 stack:22856 pid:1029  ppid:2      flags:0x00004000
Workqueue: writeback wb_workfn
 (flush-7:3)

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5293 [inline]
 __schedule+0xb8a/0x5450 kernel/sched/core.c:6606
 schedule+0xde/0x1b0 kernel/sched/core.c:6682
 schedule_timeout+0x1e1/0x2a0 kernel/time/timer.c:2143
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
 f2fs_issue_checkpoint+0x35c/0x460 fs/f2fs/checkpoint.c:1887
 f2fs_sync_fs+0x244/0x4c0 fs/f2fs/super.c:1669
 f2fs_balance_fs_bg+0xc95/0xf40 fs/f2fs/segment.c:500
 f2fs_write_node_pages+0x14a/0xd60 fs/f2fs/node.c:2109
 do_writepages+0x1af/0x690 mm/page-writeback.c:2581
 __writeback_single_inode+0x159/0x1440 fs/fs-writeback.c:1598
 writeback_sb_inodes+0x54d/0xf90 fs/fs-writeback.c:1889
 __writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1960
 wb_writeback+0x8d6/0xd70 fs/fs-writeback.c:2065
 wb_check_old_data_flush fs/fs-writeback.c:2165 [inline]
 wb_do_writeback fs/fs-writeback.c:2218 [inline]
 wb_workfn+0x871/0x12f0 fs/fs-writeback.c:2246
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x669/0x1090 kernel/workqueue.c:2436
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
INFO: task syz-executor116:5082 blocked for more than 152 seconds.
      Not tainted 6.2.0-rc6-syzkaller-00273-g837c07cf68fe #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor116 state:D
 stack:26160 pid:5082  ppid:5079   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5293 [inline]
 __schedule+0xb8a/0x5450 kernel/sched/core.c:6606
 schedule+0xde/0x1b0 kernel/sched/core.c:6682
 d_wait_lookup fs/dcache.c:2625 [inline]
 d_alloc_parallel+0xd85/0x1410 fs/dcache.c:2707
 __lookup_slow+0x193/0x460 fs/namei.c:1670