INFO: task syz-executor.3:11086 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc5-syzkaller-32269-g9500fc6e9e60 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:0     pid:11086 ppid:3127   flags:0x00000009
Call trace:
 __switch_to+0x180/0x298 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x408/0x594 kernel/sched/core.c:6503
 schedule+0x64/0xa4 kernel/sched/core.c:6579
 schedule_timeout+0x64/0x1b4 kernel/time/timer.c:1911
 do_wait_for_common+0xf4/0x184 kernel/sched/completion.c:85
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x48/0x60 kernel/sched/completion.c:138
 f2fs_issue_checkpoint+0x158/0x244
 f2fs_sync_fs+0x8c/0xc8 fs/f2fs/super.c:1656
 sync_fs_one_sb+0x64/0x90 fs/sync.c:84
 iterate_supers+0xc0/0x150 fs/super.c:724
 ksys_sync+0x64/0xc8 fs/sync.c:104
 __arm64_sys_sync+0x14/0x24 fs/sync.c:113
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
INFO: task syz-executor.1:11125 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc5-syzkaller-32269-g9500fc6e9e60 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D
 stack:0     pid:11125 ppid:3116   flags:0x00000009
Call trace:
 __switch_to+0x180/0x298 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x408/0x594 kernel/sched/core.c:6503
 schedule+0x64/0xa4 kernel/sched/core.c:6579
 schedule_timeout+0x64/0x1b4 kernel/time/timer.c:1911
 do_wait_for_common+0xf4/0x184 kernel/sched/completion.c:85
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x48/0x60 kernel/sched/completion.c:138
 f2fs_issue_checkpoint+0x158/0x244
 f2fs_sync_fs+0x8c/0xc8 fs/f2fs/super.c:1656
 sync_fs_one_sb+0x64/0x90 fs/sync.c:84
 iterate_supers+0xc0/0x150 fs/super.c:724
 ksys_sync+0x64/0xc8 fs/sync.c:104
 __arm64_sys_sync+0x14/0x24 fs/sync.c:113
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
 #0: 
ffff80000d4d4768
 (rcu_tasks.tasks_gp_mutex
){+.+.}-{3:3}
, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/12:
 #0: 
ffff80000d4d4db8
 (
rcu_tasks_trace.tasks_gp_mutex
){+.+.}-{3:3}
, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/27:
 #0: 
ffff80000d4d4640
 (
rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:303
2 locks held by getty/2757:
 #0: 
ffff0000c8042098
 (
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244
 #1: 
ffff80000f6ee2f0
 (
&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0x19c/0x89c drivers/tty/n_tty.c:2177
1 lock held by syz-executor.3/11086:
 #0: 
ffff0001234160e0
 (
&type->s_umount_key
#79
){++++}-{3:3}
, at: iterate_supers+0x7c/0x150 fs/super.c:722
3 locks held by f2fs_ckpt-7:3/11091:
1 lock held by syz-executor.1/11125:
 #0: 
ffff0001234160e0
 (
&type->s_umount_key
#79
){++++}-{3:3}
, at: iterate_supers+0x7c/0x150 fs/super.c:722
1 lock held by syz-executor.3/11178:
 #0: 
ffff0001234160e0
 (
&type->s_umount_key
#79){++++}-{3:3}
, at: iterate_supers+0x7c/0x150 fs/super.c:722
1 lock held by syz-executor.3/11179:
 #0: ffff0001234160e0
 (
&type->s_umount_key
#79
){++++}-{3:3}
, at: iterate_supers+0x7c/0x150 fs/super.c:722
1 lock held by syz-executor.1/11203:
 #0: 
ffff0001234160e0
 (
&type->s_umount_key
#79
){++++}-{3:3}
, at: iterate_supers+0x7c/0x150 fs/super.c:722
1 lock held by syz-executor.3/11249:
 #0: 
ffff0001234160e0
 (
&type->s_umount_key
#79
){++++}-{3:3}
, at: iterate_supers+0x7c/0x150 fs/super.c:722
1 lock held by syz-executor.3/11252:
 #0: 
ffff0001234160e0
 (
&type->s_umount_key
#79
){++++}-{3:3}
, at: iterate_supers+0x7c/0x150 fs/super.c:722
1 lock held by syz-executor.1/11274:
 #0: 
ffff0001234160e0 (
&type->s_umount_key
#79
){++++}-{3:3}
, at: iterate_supers+0x7c/0x150 fs/super.c:722

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