RDX: 000000000000000f RSI: 00007f37414101e0 RDI: 0000000000000005
RBP: 00007f37414101d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffdb28ce0df R14: 00007f3741410300 R15: 0000000000022000
INFO: task syz-executor.4:15246 blocked for more than 143 seconds.
      Not tainted 5.10.154 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:27352 pid:15246 ppid:   287 flags:0x00004004
Call Trace:
 context_switch kernel/sched/core.c:3797 [inline]
 __schedule+0x848/0x1e90 kernel/sched/core.c:4546
 schedule+0xcb/0x270 kernel/sched/core.c:4624
 schedule_timeout+0x36d/0x3f0 kernel/time/timer.c:1853
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x168/0x270 kernel/sched/completion.c:138
 __flush_work+0x4e8/0xa10 kernel/workqueue.c:3054
 __cancel_work_timer+0x368/0x4c0 kernel/workqueue.c:3141
 p9_conn_destroy net/9p/trans_fd.c:884 [inline]
 p9_fd_close+0x236/0x4a0 net/9p/trans_fd.c:919
 p9_client_create+0x8f3/0x1090 net/9p/client.c:1068
 v9fs_session_init+0x1dd/0x16a0 fs/9p/v9fs.c:406
 v9fs_mount+0x79/0x8f0 fs/9p/vfs_super.c:126
 legacy_get_tree+0x105/0x220 fs/fs_context.c:592
 vfs_get_tree+0x8e/0x300 fs/super.c:1550
 do_new_mount fs/namespace.c:2899 [inline]
 path_mount+0x13be/0x20b0 fs/namespace.c:3229
 do_mount fs/namespace.c:3242 [inline]
 __do_sys_mount fs/namespace.c:3450 [inline]
 __se_sys_mount fs/namespace.c:3427 [inline]
 __x64_sys_mount+0x282/0x300 fs/namespace.c:3427
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f4a58d35b19
RSP: 002b:00007f4a562ab188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f4a58e48f60 RCX: 00007f4a58d35b19
RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f4a58d8ff6d R08: 0000000020000140 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffdcd74a4f R14: 00007f4a562ab300 R15: 0000000000022000

Showing all locks held in the system:
2 locks held by systemd/1:
 #0: ffff888008b8e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x90 drivers/tty/tty_ldisc.c:266
 #1: ffff888008b8e130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write_lock drivers/tty/tty_io.c:952 [inline]
 #1: ffff888008b8e130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: do_tty_write drivers/tty/tty_io.c:975 [inline]
 #1: ffff888008b8e130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: file_tty_write.constprop.0+0x29d/0x8d0 drivers/tty/tty_io.c:1118
1 lock held by khungtaskd/22:
 #0: ffffffff84ff81a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6390
1 lock held by in:imklog/177:
 #0: ffff88800cf02d70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xed/0x110 fs/file.c:1003
2 locks held by rs:main Q:Reg/178:
 #0: ffff88800ced4870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xed/0x110 fs/file.c:1003
 #1: ffff88800f950438 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x12d/0x260 fs/read_write.c:658
4 locks held by kworker/1:1/13071:
 #0: ffff888007c58d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888007c58d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
 #0: ffff888007c58d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
 #0: ffff888007c58d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline]
 #0: ffff888007c58d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline]
 #0: ffff888007c58d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x8ac/0x1590 kernel/workqueue.c:2250
 #1: ffff88804aa4fda8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8df/0x1590 kernel/workqueue.c:2254
 #2: ffff888008b8e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x90 drivers/tty/tty_ldisc.c:266
 #3: ffffc900134072e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xf39/0x14c0 drivers/tty/n_tty.c:2208

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