INFO: task syz-executor.0:23801 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc3-syzkaller-00239-g10d916c86eca #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D
 stack:28136 pid:23801 ppid:3642   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x1ca/0x5c0 kernel/sched/completion.c:106
 f2fs_issue_checkpoint+0x358/0x460 fs/f2fs/checkpoint.c:1882
 f2fs_sync_fs+0x240/0x4c0 fs/f2fs/super.c:1656
 sync_fs_one_sb fs/sync.c:84 [inline]
 sync_fs_one_sb+0x107/0x140 fs/sync.c:80
 iterate_supers+0x13c/0x290 fs/super.c:724
 ksys_sync+0xa8/0x150 fs/sync.c:104
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f13c808b5a9
RSP: 002b:00007f13c8d6b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f13c81ac050 RCX: 00007f13c808b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f13c80e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdb853f33f R14: 00007f13c8d6b300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.5:23822 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc3-syzkaller-00239-g10d916c86eca #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D
 stack:28136 pid:23822 ppid:3647   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x1ca/0x5c0 kernel/sched/completion.c:106
 f2fs_issue_checkpoint+0x358/0x460 fs/f2fs/checkpoint.c:1882
 f2fs_sync_fs+0x240/0x4c0 fs/f2fs/super.c:1656
 sync_fs_one_sb fs/sync.c:84 [inline]
 sync_fs_one_sb+0x107/0x140 fs/sync.c:80
 iterate_supers+0x13c/0x290 fs/super.c:724
 ksys_sync+0xa8/0x150 fs/sync.c:104
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fddba48b5a9
RSP: 002b:00007fddbb147168 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fddba5ac050 RCX: 00007fddba48b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fddba4e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdf957aeef R14: 00007fddbb147300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.5:23827 blocked for more than 145 seconds.
      Not tainted 6.1.0-rc3-syzkaller-00239-g10d916c86eca #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D
 stack:29240 pid:23827 ppid:3647   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x1ca/0x5c0 kernel/sched/completion.c:106
 f2fs_issue_checkpoint+0x358/0x460 fs/f2fs/checkpoint.c:1882
 f2fs_sync_fs+0x240/0x4c0 fs/f2fs/super.c:1656
 sync_fs_one_sb fs/sync.c:84 [inline]
 sync_fs_one_sb+0x107/0x140 fs/sync.c:80
 iterate_supers+0x13c/0x290 fs/super.c:724
 ksys_sync+0xa8/0x150 fs/sync.c:104
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fddba48b5a9
RSP: 002b:00007fddbb126168 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fddba5ac120 RCX: 00007fddba48b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fddba4e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdf957aeef R14: 00007fddbb126300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.5:23833 blocked for more than 146 seconds.
      Not tainted 6.1.0-rc3-syzkaller-00239-g10d916c86eca #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D
 stack:28136 pid:23833 ppid:3647   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x1ca/0x5c0 kernel/sched/completion.c:106
 f2fs_issue_checkpoint+0x358/0x460 fs/f2fs/checkpoint.c:1882
 f2fs_sync_fs+0x240/0x4c0 fs/f2fs/super.c:1656
 sync_fs_one_sb fs/sync.c:84 [inline]
 sync_fs_one_sb+0x107/0x140 fs/sync.c:80
 iterate_supers+0x13c/0x290 fs/super.c:724
 ksys_sync+0xa8/0x150 fs/sync.c:104
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fddba48b5a9
RSP: 002b:00007fddbb105168 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fddba5ac1f0 RCX: 00007fddba48b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fddba4e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdf957aeef R14: 00007fddbb105300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.4:23829 blocked for more than 147 seconds.
      Not tainted 6.1.0-rc3-syzkaller-00239-g10d916c86eca #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D
 stack:28136 pid:23829 ppid:3645   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x1ca/0x5c0 kernel/sched/completion.c:106
 f2fs_issue_checkpoint+0x358/0x460 fs/f2fs/checkpoint.c:1882
 f2fs_sync_fs+0x240/0x4c0 fs/f2fs/super.c:1656
 sync_fs_one_sb fs/sync.c:84 [inline]
 sync_fs_one_sb+0x107/0x140 fs/sync.c:80
 iterate_supers+0x13c/0x290 fs/super.c:724
 ksys_sync+0xa8/0x150 fs/sync.c:104
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f686e28b5a9
RSP: 002b:00007f686d5ff168 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f686e3ac050 RCX: 00007f686e28b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f686e2e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd79ad0fdf R14: 00007f686d5ff300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.4:23832 blocked for more than 148 seconds.
      Not tainted 6.1.0-rc3-syzkaller-00239-g10d916c86eca #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D
 stack:28136 pid:23832 ppid:3645   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x1ca/0x5c0 kernel/sched/completion.c:106
 f2fs_issue_checkpoint+0x358/0x460 fs/f2fs/checkpoint.c:1882
 f2fs_sync_fs+0x240/0x4c0 fs/f2fs/super.c:1656
 sync_fs_one_sb fs/sync.c:84 [inline]
 sync_fs_one_sb+0x107/0x140 fs/sync.c:80
 iterate_supers+0x13c/0x290 fs/super.c:724
 ksys_sync+0xa8/0x150 fs/sync.c:104
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f686e28b5a9
RSP: 002b:00007f686d5de168 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f686e3ac120 RCX: 00007f686e28b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f686e2e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd79ad0fdf R14: 00007f686d5de300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.3:23835 blocked for more than 149 seconds.
      Not tainted 6.1.0-rc3-syzkaller-00239-g10d916c86eca #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D
 stack:28136 pid:23835 ppid:3646   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x1ca/0x5c0 kernel/sched/completion.c:106
 f2fs_issue_checkpoint+0x358/0x460 fs/f2fs/checkpoint.c:1882
 f2fs_sync_fs+0x240/0x4c0 fs/f2fs/super.c:1656
 sync_fs_one_sb fs/sync.c:84 [inline]
 sync_fs_one_sb+0x107/0x140 fs/sync.c:80
 iterate_supers+0x13c/0x290 fs/super.c:724
 ksys_sync+0xa8/0x150 fs/sync.c:104
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f40baa8b5a9
RSP: 002b:00007f40bb80f168 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f40babac050 RCX: 00007f40baa8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f40baae67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff81bfa0ff R14: 00007f40bb80f300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: 
ffffffff8bf87df0
 (
rcu_tasks.tasks_gp_mutex
){+.+.}-{3:3}
, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
 #0: 
ffffffff8bf87af0
 (
rcu_tasks_trace.tasks_gp_mutex
){+.+.}-{3:3}
, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
 #0: 
ffffffff8bf88940
 (
rcu_read_lock
){....}-{1:2}
, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6494
2 locks held by getty/3283:
 #0: 
ffff88814adb4098
 (
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
 #1: 
ffffc900031262f0
 (
&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.0/23801:
 #0: 
ffff8880779fa0e0
 (
&type->s_umount_key
#73
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
5 locks held by f2fs_ckpt-7:0/23796:
1 lock held by syz-executor.5/23822:
 #0: 
ffff8880779fa0e0
 (
&type->s_umount_key
#73
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.5/23827:
 #0: 
ffff8880779fa0e0
 (
&type->s_umount_key
#73
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.5/23833:
 #0: 
ffff8880779fa0e0
 (
&type->s_umount_key
#73
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.4/23829:
 #0: 
ffff8880779fa0e0
 (&type->s_umount_key#73){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.4/23832:
 #0: ffff8880779fa0e0
 (
&type->s_umount_key
#73
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.3/23835: