INFO: task syz-executor.4:12749 can't die for more than 143 seconds.
task:syz-executor.4  state:R  running task     stack:26944 pid:12749 ppid:  6876 flags:0x00004006
Call Trace:
 context_switch kernel/sched/core.c:3772 [inline]
 __schedule+0xec5/0x2200 kernel/sched/core.c:4521
 schedule+0xcf/0x270 kernel/sched/core.c:4599
 schedule_timeout+0x148/0x250 kernel/time/timer.c:1881
 io_schedule_timeout+0xc6/0x140 kernel/sched/core.c:6281
 congestion_wait+0xff/0x450 mm/backing-dev.c:960
 f2fs_get_meta_page_nofail+0x1f/0x70 fs/f2fs/checkpoint.c:114
 get_current_sit_page fs/f2fs/segment.c:3967 [inline]
 build_sit_entries fs/f2fs/segment.c:4396 [inline]
 f2fs_build_segment_manager+0x5080/0xa370 fs/f2fs/segment.c:5100
 f2fs_fill_super+0x3b58/0x7410 fs/f2fs/super.c:3689
 mount_bdev+0x32e/0x3f0 fs/super.c:1419
 legacy_get_tree+0x105/0x220 fs/fs_context.c:592
 vfs_get_tree+0x89/0x2f0 fs/super.c:1549
 do_new_mount fs/namespace.c:2896 [inline]
 path_mount+0x12ae/0x1e70 fs/namespace.c:3227
 __do_sys_mount fs/namespace.c:3438 [inline]
 __se_sys_mount fs/namespace.c:3411 [inline]
 __x64_sys_mount+0x278/0x2f0 fs/namespace.c:3411
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x46087a
Code: Unable to access opcode bytes at RIP 0x460850.
RSP: 002b:00007f1081467a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1081467b20 RCX: 000000000046087a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f1081467ae0
RBP: 00007f1081467ae0 R08: 00007f1081467b20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000140 R15: 0000000020000200

Showing all locks held in the system:
1 lock held by khungtaskd/1182:
 #0: ffffffff8a554da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6242
1 lock held by in:imklog/6557:
 #0: ffff888099c458f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:930
2 locks held by rs:main Q:Reg/6558:
 #0: ffff8880979f1b30 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:930
 #1: ffff888098ac2460 (sb_writers#4){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2757 [inline]
 #1: ffff888098ac2460 (sb_writers#4){.+.+}-{0:0}, at: vfs_write+0x521/0x700 fs/read_write.c:599
2 locks held by agetty/6696:
 #0: ffff888090c45098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:266
 #1: ffffc90000f642e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x223/0x1a70 drivers/tty/n_tty.c:2156
4 locks held by syz-executor.4/12749:

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